Update Regarding Supply Chain Issues
Jul 2022

At CNF we continue to face supply chain issues affecting the availability of process gasses, chemicals, lab supplies and equipment repair parts critical in the semiconductor industry. CNF continues to be proactive by adjusting ordering and inventory practices. We continuously monitor supplies and tracking usage rates to ensure we have backups and needed inventory. In some instances we need to source alternative brand items that meet our requirements to avoid running out on key supplies. Our team strives to stay ahead of adjusted lead-times for critical items while dealing with unclear supply chain disturbances. Thank you for your patience despite the difficulties the supply chain crisis presents.

-Ron Olson, Director of Operations

UPDATED 05/18/2022: COVID protocol update for External Users, Vendors and Visitors
May 2022

Updated 05/18/2022

Per Cornell University's Covid guidelines external users, vendors and visitors are no longer required to show proof of vaccination or negative COVID test. Approved masks are still required in all CNF lab spaces and classroom settings. We do encourage you continue to test for COVID-19 prior to travel and before your arrival on campus and to keep current with vaccines and boosters. If you have COVID-19 symptoms do not come to campus. Please adhere to Cornell University's COVID-19 guidelines.




Shutdown Deferred to Winter Break 2022-2023
Feb 2022

The clean room shutdown for HEPA filter replacement and other important work has been pushed to DECEMBER 2022. We will NOT be shutting down either the cleanroom or 2nd and 3d floors this month !!

Sorry for late notice and the prior announcements and impact on your activities, this is the result of a week of assessment between contractors, project management, stake holders, and university management to minimize overall effect on Duffield occupants.

We know that many of you have worked feverishly during the last month to meet the previously announced shutdowns. We are sorry for that disruption, but we believe that this delay to December (on or about Dec 19th) best serves all our users.

It is planned that during this December 2022 shutdown the corroded acid exhaust duct which was not part of the original project will be replaced. However, if further examination indicates that this repair cannot wait we will need to briefly shutdown the cleanroom to replace the acid exhaust duct. We will communicate the status of this as soon as we have more information.

-Ron, Lynn, and Phil

Feb 11, 2022 Update on schedule for CNF labs shutdown
Feb 2022

The cleanroom is now scheduled to shut down on Monday, February 28, 2022 at 7:00 am and will reopen on Monday, April 25, 2022. Please note if unexpected shipping delays impact receipt of the HEPA filters the shutdown date may be pushed out further. Remember to remove or properly store any items that you may have on counters or tables in the cleanroom.

Additionally, we were informed the 2nd floor labs are scheduled to close to users from March 22nd until April 11th due to no exhaust or fresh air availability.

We understand the impact to current projects and are working closely with the contractor to reduce the length of the shutdown. We will continue to keep you apprised of the situation.

Feb 9, 2022 Update on schedule for CNF cleanroom shutdown
Feb 2022

We were informed by the construction team that the cleanroom shut down has been delayed due to further shipping issues with the HEPA filters. We know the filters are scheduled to arrive in the United States on February 14th. However, it is uncertain how long it will take customs to clear the filters or when they will arrive at the CNF. Due to these delays the cleanroom will not be closing on Feb 14th as previously announced. We are having a planning meeting this Thursday (Feb. 10th) in order to acquire a firmer grip on the schedule. We anticipate the new date for the lab shutdown will occur the last full week in February. Thank you for your patience while we confirm plans.

Duffield Hall Cleanroom HVAC Rehabilitation Project
Jan 2022

CNF community,

As you are aware the CNF cleanroom will be shut down from February 14th to April 19, 2022 in order to rebuild the main air handler unit and replace the HEPA filters in the lab. This project was originally scheduled for the 2021 -2022 holiday break to reduce cleanroom down time but due to supply chain issues the scheduled start date was delayed.

The main purpose of this “Cleanroom HVAC Rehabilitation Project” is to rebuild and renew the rusted interior of the Makeup Air Handling Unit (MAU) -1 in an effort to extend its operating life and prevent a further unexpected shutdown of the cleanroom in the future. The rust and scale build up in the fan section of the air handler is due to the humidifiers' streams not being absorbed into the airstream efficiently. The age of the system and deterioration inside the fan section has reduced the life expectancy of the unit to less than 3 years prompting the need for this urgent preventative maintenance. Unfortunately delaying is not an option and an unexpected shutdown due to a catastrophic failure would be a longer downtime than a planned one.

During this maintenance period and to prevent future extended shutdowns, Maintenance Management and Energy and Sustainability will be using this downtime to optimally replace the HEPA filters which are 10 years past their recommended life and install a heat recovery system to reduce the system’s operating cost by reducing the system's heating and cooling load that will ensure optimal room environment conditions for the cleanroom and microscopy lab.

The CNF staff will be working with the contractor and facilities management to safeguard the cleanroom equipment and provide a speedy and efficient reopening of the cleanroom. We will keep you informed if anything changes.

Update on schedule for CNF cleanroom shutdown
Jan 2022

In order to rebuild the main air handler and replace over 450 HEPA filters, the cleanroom will be shut down from February 14, 2022 to April 19, 2022. Please take this into account in your planning. We will keep you informed if anything changes.

Ron Olson

CNF Cleanroom Closing Monday, Dec 20 for Holidays
Dec 2021

The CNF facility will be closing at noon on Monday, December 20, 2021. The facility is anticipated to reopen on January 3, 2022. All face to face trainings scheduled for Friday, Dec 17 or Monday, Dec 20 are canceled. Please work with staff to reschedule trainings. The exception will be the second floor labs and CAD Room that will remain accessible to users throughout the break but will have limited staff support for supply and tool issues.

The most recent surge in COVID cases on the Cornell campus has prompted this early closure. As the number of positive cases continues to rise throughout the local community and nationwide, we remain committed to helping mitigate exposure and spread of the virus.

Please plan your work accordingly to ensure a smooth shutdown on Monday. On behalf of the entire CNF staff I wish your family and you a safe, and healthy holiday season. Your continued support and cooperation is appreciated.

Ron Olson

Winter Holiday Lab Closure
Dec 2021

Please remember that the CNF will have the normal holiday shutdown and be closing at noon on December 23, 2021 and re-opening at noon on January 3, 2022 after the holiday break. Second floor labs will remain open over break, but there will be limited staff support for supplies and tool issues.

Please note that the CNF shutdown dates for the rebuild of the main air handler and replacement of the HEPA filters still have not been confirmed. As we learn more about the schedule of this shutdown over the next couple weeks, we will let you know.

Duffield Atrium Doors, Clean Shoes, Holiday Break Reminder
Dec 2020

Hello CNF Researchers,

Beginning on 12/23/2020 the Duffield Hall Atrium doors will be Card Access restricted. You may have noticed some of the doors have already started to be locked. The doors with the card access are still unlocked until tomorrow, when you will need to use your Cornell ID card to get into the building. Anyone with CNF access has had those doors added to their access levels so you should be able to enter the building over break and going forward next year. If you encounter any issues, please email me.

The recent snow storm is a reminder to bring a change of shoes when entering the CNF lab spaces after walking on the campus sidewalks. The rock salt is a big contaminate for the labs and can easily get tracked into those spaces with wet/dirty shoes. We will be expanding the rack/cubby area to the right of the cleanroom entrance for temporary storage of coats, shoes, backpacks, etc.

Also, just a reminder that the cleanroom will be closing at 5pm tomorrow (Wednesday) and re-opening at noon on Monday, 1/4/2021 after the Holiday Break. Second floor labs will remain open over break, but there will be limited staff support for supplies and tool issues.

Phil Infante, Cornell NanoScale Facility Lab Safety Manager, 607-254-4926, infante@cnf.cornell.edu

CNF Holiday Closing, Dec 24-Jan 4
Dec 2020

This year, Cornell University added Thursday Dec 24th to the staff holidays, so for the 2020 Christmas and New Year Holiday Break, the CNF will be closing the cleanroom from 5:00 pm this Wednesday, Dec 23rd 2020, thru 12:00 noon on Monday, January 4th, 2021. Second floor lab spaces will be open during the break with limited staff support (some individual 2nd floor tools may not be available at all over break). Check Coral first before returning in the New Year, since a few cleanroom tools need longer to stabilize and may not be immediately available upon our re-opening. The CNF wishes everyone a happy and healthy holiday season!

UPDATED 8/13/2020: Moving to 24/7 Access for Users
Aug 2020

Updated 08/13/2020

Beginning August 17th, the CNF will allow 24/7 access to approved users. At this time CNF staff will be working a split-day, work schedule in order to maximize cleanroom area coverage. This schedule is intended to improve productivity and ensure flexibility while maintaining a safe working environment.

Cleanroom occupancy for users has increased from 20 to 25 after 5 pm Monday through Friday with occupancy on Saturdays set at 25 users. During the M-F workday, capacity is 20 users, in addition to staff.

The CNF Cad Rm remains closed... remote access to software is available.

Please visit the CNF COVID-19 policies page for the most up to date information.

Updated July 31: Cleanroom Occupancy and Congestion
Jul 2020

July 31 Update:

While we are continuing to increase hours during which users may access the cleanroom, the maximum cleanroom occupancy has not changed. Reminder we are allowed to have a maximum of 20 users plus staff during the day and 25 users during the evenings/Saturday (no staff).

July 22 Update:

New Hours:

  • Monday Hours: 9AM - Midnight
  • Tuesday - Saturday Hours: 7AM - Midnight

Cleanroom maximum occupancy is still 20 users during normal business hours when staff are present. During evening and Saturday hours, cleanroom maximum occupancy increases to 25 users.

Just a quick lab occupancy reminder; at the moment we are allowed to have maximum (20) users in the facility at one moment along with staff. Please take notice of the board outside the togging room door entrance before entry. And occupancy of the togging room is limited to two people at a time.

Congestion in the photolithography areas and togging room can be problematic. To help reduce congestion, we recently expanded operating hours, with selected users having access until midnight. We encourage users to be flexible and patient and to use all available hours.

The CNF staff and management continues to closely monitor occupancy limits and opportunities for improvement. At this time, new users are not permitted in to the facility and one on one training is not available.

UPDATED 6/21/2020: CNF COVID-19 Reactivation Plan
Jun 2020

Updated 6/21/2020

COVID-19 Reactivation Policies

Updated 6/04/2020 

The CNF facilities reactivation plan has been approved by the Vice Provost for Research. The first phase of the plan allows technical staff to return to the CNF for the purpose of restarting equipment and processes and validating procedures and protocols. Staff has been organized in to two (2) non-overlapping working groups (Team A and Team B) that will alternate weeks (initially Mon-Th). The staggered staff schedule will aid in reducing the risk of a complete shutdown should an infection occur. It is estimated this phase will take approximately 2 weeks.

CNF is anxious to return to full operation as soon as possible. There are many logistical challenges and uncertainties, however, we will begin with a limited number of users.

Once the facilities are up and operational, users will be selected to work in the facility from local, Cornell approved Faculty research projects, according to the approved individual faculty start up plans. Faculty who have CNF usage in their restart plans should forward those plans and the names of individuals needing priority access to CNF (Ron Olson) after they have been approved by their department/college. Initially, access will be limited to 50 users. These approved users will be assigned to one of the two fixed "teams" working alternate weeks. Movement between teams will not be permitted. In order to be granted facility access, selected users will be required to take specific safety training and STRICTLY adhere to all new procedures and protocols. The safety of our staff and users is very important to us, any disregard for the new procedures and protocols will lead to an immediate suspension from our facilities.

During both the Staff Only Phase (phase 1-A) and the Selected User Phase (phase 1-B), if schedules and staff availability permit, staff will perform processes or process sequences on behalf of users who cannot enter the clean room.

Additional phases are being developed to include opening up the CNF to Non-Cornell users. At this time we do not have an estimated schedule but anticipate as the State, County and University progresses through the reopening phases, CNF will continue to expand its user base in accordance with the mandates.

UPDATED 5/26/2020: CNF Closed Since Tuesday, March 17
May 2020

Updated 5/26/2020

On May 22, the University released a reactivation plan to open specific research operations on the Ithaca Campus. The University has asked us to submit plans for restarting the CNF this week. The plan that was submitted includes a gradual reopening strategy that will be conducted in phases as previously discussed, with the safety of the staff and users as top priorities. Once approved we will share the plans.

UPDATED 4/28/2020: CNF Closed Since Tuesday, March 17
Apr 2020

In order to re-open the CNF we must receive directives from the State, County and Cornell University respectively. Although, we do not have a specific date for re-opening it is likely that once approval is granted the facility will open in phases; ramping-up over time. We envision a directive from the University to include an initial, partially staggered staffing that will perform remote user work, followed by admittance of internal academics into the CNF cleanroom to work, then local users and finally long-distance users. Along with a staggered start schedule we will be implementing protocols to keep our users and staff safe including but not limited to: different gowning procedures (facemasks, traffic flow, safety glasses), limiting cleanroom occupancy to allow for social distancing, different equipment process training protocols, and increased cleaning efforts focusing on high touch surfaces (e.g., door handles/phones/ PPE/microscopes).

It is important to mention that while we are formulating plans for re-opening all efforts are subject to change. The CNF staff is committed to providing continued, up-to-date information as it becomes available. We appreciate your patience and understanding.

In the interim, this may be a good opportunity to become familiar with and continue your work remotely with some of the CNF's great software tools.

Find important updates on the CNF closure at https://www.cnf.cornell.edu/covid-19

UPDATED 3/25/2020: CNF Closed as of Noon, Tuesday, March 17
Mar 2020

Updated 3/25/2020

At the present time a re-opening date for the CNF cleanroom has not been established. We will keep you posted and let you know as soon as things develop. Our goal is to keep the Users informed on all evolving cleanroom updates. We continue to hold the open technical session on Wednesday afternoons with the Program Managers and Staff to discuss your technical projects and challenges. Please contact our Program Managers at userprogram@cnf.cornell.edu to arrange a virtual meeting, either during the regular Wednesday afternoon time slot (1:30 pm to 3:00 pm ), or at another mutually convenient time. Continue to check the CNF website and User email for updates.

Updated 3/16/2020

Given the heightened risk of COVID-19 transmissions and to better protect the CNF staff and community, we have been directed by the Provost and Vice Provost of Research to close the Cornell NanoScale Science and Technology Facilities (CNF) by noon on Tuesday March 17th. This includes the 2nd floor labs and the CAD room. The CNF will remain closed for the foreseeable future.

Please use today and tomorrow morning to complete any experiments and retrieve any items you may need during the shutdown. The CNF Staff will be using the next couple of days to safely shut down the facilities. The CNF Staff and Management will be available during the shutdown via phone and email.

Continue to check the CNF website and user email for updates. Please continue to exercise prudence in your daily lives in an ongoing effort to protect our communities.

We are all aware of COVID-19 and we need to make sure that the CNF community and visitors follow the Cornell University policies regarding the outbreak of the novel coronavirus, COVID-19. Please stay updated on issues and restrictions related to the virus. Below are links to Cornell University's "Novel Coronavirus (COVID-19) Resources and Updates" website and other websites of interest.



CNF Fellowship Available
Jul 2019

Cornell graduate students who are also CNF Users are invited to apply for a part-time fellowship that would supplement their graduate research assistantship. The responsibilities of CNF Fellows are to provide information for current and future CNF users about new techniques, recipes, and procedures, and also current performance of tools such as etchers. They do this through the CNF user process wiki, data placed at the tools, and on AFS. A special focus in the near future is to commission Coventor process simulation software by entering measured etch and other process data. We are looking for Cornell graduate users who are proficient with some or all of the following tools (and others in the future): contact aligners; steppers; dry etchers; evaporators; oxide and nitride furnaces; SEMs; ALD. The typical duration of the fellowship is 2 to 3 years.

If you are interested in this opportunity, please email a statement of your interest, a list of CNF tools you are proficient with, and a resume to Alan Bleier, bleier@cnf.cornell.edu

2018 2019 CNF Technical Reports Due June 14th
Jun 2019

TO: All CNF Principal Investigators and Users
FROM: Chris Alpha and Michael Skvarla
RE: 2018-2019 CNF Technical Research Reports Due Friday, June 14th

It is time once again to plan for the Cornell NanoScale Facility Research Accomplishments (CNF RA).

As you may recall, one of the requirements of using the CNF for your research is the submission of an annual technical report. It is extremely important that we receive complete and interesting reports from all users and all projects. Along with copies sent to those who report, the CNF RA is distributed to industrial affiliates, visitors, potential users and sponsors. Therefore it is our primary technical CNF publication. This book is also a crucial method of conveying research highlights to NSF -- so the book must contain a comprehensive summary of our user discoveries, technologies, publications and accomplishments.

By FRIDAY, JUNE 14th, we need a TWO PAGE TECHNICAL REPORT from each User (or small User Group working on the project). Please read and follow the detailed instructions carefully!


Acknowledge CNF in Presentations, Posters, and Publications.
Jan 2019

Start the New Year right and acknowledge the CNF in your posters, publications and presentations that are made possible by work performed at CNF. "This work was performed in part at the Cornell NanoScale Science & Technology Facility (CNF), a member of the National Nanotechnology Coordinated Infrastructure (NNCI), which is supported by the National Science Foundation (Grant NNCI-1542081)." Noting the GRANT NUMBER is essential.

Winter Holiday Shutdown Dec 21 to Jan 4
Dec 2018

The CNF offices, cleanroom, and 2nd Floor 201 Lab will all close on Friday, December 21st at 3:00 pm. The CAD room, break room and select tools in the 2nd floor 224 and 228 labs will remain available over break. On Wednesday, January 2nd, 2019, the CNF offices and all second floor labs will re-open, but the cleanroom will remain closed for air handler maintenance until Friday, January 4th, 2019, at 12:00 noon. Some tools may take longer to stabilize after the shutdown. Before you head over, check Coral -- during and after the break -- to make sure the tool you want is up and running.

October CNF User Updates
Oct 2018

Dear CNF Users: In an effort to keep everyone informed of upcoming events and reminded of basic lab use, we send out reminder messages to our users. If you have any questions or concerns regarding these reminders and news items, please contact me.

[1] CNF Acknowledgements in Your Publications; Acknowledging CNF in your publications is CRITICAL to the continued success of the CNF. The National Science Foundation now considers the number of acknowledged publications in their funding algorithms. It is CRITICAL that you include the following sentence, exactly as stated, in all your publications.

This work was performed in part at the Cornell NanoScale Science & Technology Facility (CNF), a member of the National Nanotechnology Coordinated Infrastructure (NNCI), which is supported by the National Science Foundation (Grant NNCI-1542081).

If space is a concern, this can be significantly shortened to:

This work was performed in part at Cornell NanoScale Facility (CNF), an NNCI member supported by NSF Grant NNCI-1542081.

Adding this acknowledgement to your presentations and posters is very much appreciated also.

[2] Wafer Express Service! CNF now stocks a few commonly-requested thin films which may be ordered in limited quantities for quick turn-around. The process is simple, streamlined and meant to be especially convenient for a number of researchers who want these films. Details are at http://www.cnf.cornell.edu/cnf_wafer_express.html

[3] Some of our TOOL INFORMATION SHEETS have changed significantly. Please read them carefully.

[4] As an early warning on the Holiday Break, we will be closing on Friday, December 21st, at 3:00 p.m. We will reopen at 12 noon on Wednesday, January 2nd, 2019. During the break, the second floor CNF labs will be available, as will the CNF CAD room.  But! During the break and immediately after, check Coral first before coming to campus to make sure the tool you want to use is indeed available.

Phil Infante
Lab Safety Manager
Cornell NanoScale Facility
Cornell University
250 Duffield Hall
Ithaca, NY 14853


May Reminders & Updates for CNF Users
May 2018

Dear CNF Users: In an effort to keep everyone informed of upcoming events and reminded of basic lab use, we send out reminder messages to our users. If you have any questions or concerns regarding these reminders and news items, please contact Phil Infante, CNF Lab Safety Manager [email]

[1] STEAM SHUTDOWN DATES; The annual Cornell Steam Shutdown will occur Tuesday, May 29th - Friday, June 1st. The CNF labs and cleanroom will close at 7:00 a.m. on May 29th. ALL CHEMISTRY AND SAMPLES LEFT IN HOODS WILL BE DISCARDED! The labs and cleanroom will re-open at 12 noon on Friday, June 1st. Before coming in on that Friday, check Coral to make sure the tool you want is up and running -- a few individual tools may still be off-line. Also, note that Monday, May 28th, is a Staff Holiday and therefore Buddy Rules apply all day.

[2] PT720/740 and PT770 Etch tool Process Updates; In response to the evolving needs of the CNF user community, we have recently recommissioned the chlorine based dual chamber Plasma-Therm 720/740 RIE system. The PT720 RIE is being used to etch 2D transition metal chalcogenides (TMDs) including MoS2, SnS2, WSe2, NbSe2, GaSe, InSe, CdSe, and others.  In addition, 2D metal oxides such as WO3, V2O5, MnO2 can be etched as well as layered 2D perovskites such as SrRuOx, and SrLaAlOx whether pure or mixed phase. The PT740 is now an RIE system which will accommodate the presence of gold on a substrate or wafer.   Users are now allowed to etch down to a gold interface and have gold exposed in the course of an etch. This process policy update is not intended for the tool to be used for gold etching/removal,  it is only to allow the ability to stop a dielectric process on an underlying gold film. The PT740 has been facilitated with CF4 and CHF3 to allow the etching of silicon based dielectric films, in addition to the existing chlorine based chemistry which has traditionally been there.

Established metal etch processes for samples that are sensitive to the presence of Gold in the PT720 has been moved and characterized on the PT770 etch tool. Please see the CNF etch staff with any specific process questions.

[3] USB chargers;  CNF IT has installed USB chargers for folks to charge their cell phones (instead of using the CNF computers, which may not let go of your personal information!). The little black boxes take five USB plugs and there is one in the CNF breakroom, four in the cleanroom, and one in the CAD room. Soon there will be one in the little Visitor Office in 250 Duffield also.

[4] CNF TCN and Annual Meeting. Registration is now open for the June short course: Technology & Characterization at the Nanoscale (CNF TCN), Tuesday - Friday, June 5 - 8, 2018. http://cnf.cornell.edu/cnf_tcn_june_2018.html  Also, SAVE THE DATE! The 2018 CNF Annual Meeting will be on a very different date -- Wednesday, October 3rd! Prof. Cyrus Mody is our plenary speaker. http://www.cnf.cornell.edu/cnf_2018am.html

[5] Acknowledging CNF Research. Our National Science Foundation and New York State funding is dependent in part on our showing our effectiveness as a research facility, often best reflected in your patents, presentations, and publications. Please acknowledge CNF! "This work was performed in part at Cornell NanoScale Facility, an NNCI member supported by NSF Grant ECCS-1542081." http://www.cnf.cornell.edu/cnf5_publication.html

Monthly Reminders, March 2018 Edition
Mar 2018
  1. There has been an increase in the number of users not signing into the General Chemistry Hoods after hours. Users are required to sign in each and every time they use the hood, with a buddy after 6 pm on weekdays and all day on weekends and holidays. This helps us keep track of usage and aids us in piecing together usage history in the event of a safety incident and is CNF policy. Continued violations will result in lab suspensions.
  2. There also has been a significant amount of user belongings (wafer boxes, notebooks, masks) left out on tables and counters in the cleanroom, particularly in the stepper room. We will begin removing items and placing them in storage starting in April. They will be held for several months then disposed of if not claimed. Please make sure you masks and sample are properly stored and not left out on benches and tables.
  3. On Wednesday, March 21, 2018, CNF will debut its new CNFUsers website replacing the current ten-plus years old site. The new site is hosted in a modern Drupal environment on Pantheon and uses modern web design paradigms. Mobile devices can use the responsive design elements to render the site on most any screen size including smart phones. New high quality tool pictures, the @CNFUsers twitter feed, the Cornell Events Calendar featuring CNF events, and a standardized maintainable layout are all parts of the new site.

If you have any questions or concerns on these Reminders, please contact Phil Infante.

Monthly Reminders, December 2017 Edition
Dec 2017
  1. The Holiday Break approaches! We have a two-stage closing this year.
    1. Tool Cooling Water Maintenance: Select etch and thin film tools will be unavailable starting late afternoon on Wednesday, December 20, for cooling water maintenance work to be performed on December 21. This is not a lab wide impact, only a subset of the CNF tools will be unavailable -- impacted tools will be blocked out on Coral.
    2. The CNF labs, including the cleanroom, will close at noon on Friday, December 22, to allow time to power down and secure tools for the break. The labs will re-open at noon on Tuesday, January 2, 2018. Some tools may take longer to stabilize and become available for use -- check Coral first to make sure your tool is functioning before planning your visit. Also, the CNF Office will close at 4:30 p.m. on Friday, December 22, and reopen at 8:30 a.m. on Tuesday, January 2, 2018. While there will be no access to the CNF office, cleanroom and labs over the break, the CAD room WILL be available to users.
  2. Winter weather is here, so please remember our dress code and do not wear wet / salty boots into the cleanroom. Keep an extra pair of sneakers (for instance) on hand, so that you can easily wear clean and dry shoes when you enter the facility. http://www.cnf.cornell.edu/cnf_dresscode.html
  3. The January CNF Short Course: Technology & Characterization at the Nanoscale (CNF TCN) will be held Tuesday-Friday, January 9-12, 2018. Please spread the news! All of our new CNF users should especially consider attending. Register online at http://cnf.cornell.edu/cnf_tcn_january_2018.html

If you have any questions or concerns regarding these reminders, please contact Phil Infante, CNF Lab Safety Manager.

Special Announcement, Lab Reminders; July 19, 2017
Aug 2017

Hello CNF Users:

A couple of reminders on lab protocol:

1: Lab Dress Code: As the weather has gotten warm we have been seeing users enter the lab with typical summer attire. While this is fine in non-lab area spaces (CAD room, offices, etc), researchers need to follow the CNF Lab Dress Code in the cleanroom and second floor lab spaces. Closed covered shoes with socks (toes, heel and top of foot area need to be covered) - no sandals or open weave shoes. Pants need to extend to the ankles and shirts need to run from the top of the arms to the pants. A full dress code description can be found in the CNF Lab User Manual found on our web site (http://www.cnf.cornell.edu/cnf5_publication.html or http://www.cnf.cornell.edu/cnf_dresscode.html).

Cleanroom suits are for cleanliness and do not offer significant protection from chemical exposure, your attire acts as a second barrier to any potential exposure. We have had a couple of incidents in recent history where a chemical spill on the leg/foot area thankfully did not reach the researchers skin due to the proper lab attire. Their pants and shoes in these cases prevented the chemicals from coming in contact with their skin. If you have any questions on what may be appropriate or not, do not hesitate to ask a CNF staff member.

2: Hood Usage: The CNF has limited hood space and we get a lot of research activity in the summer months - the hoods get crowded very quickly. We have noticed that in many cases, users leaving chemical containers in the hoods overnight or for extended days. The CNF hood policy does allow for chemicals to sit for 24hrs when cooling down or are in use. If you are done using them - dispose of them immediately. We would rather you pour up new chemicals the following day than to occupy valuable hood space for other researchers to use. Repeated occurrences of unused chemicals left in hoods may result in lab suspensions. If everyone is diligent in disposing and cleaning up their beakers/chemicals after each use, everyone benefits.

Thank you for your attention to these issues.

Phil Infante
Cornell Nanoscale Facility
Cornell University
250 Duffield Hall
Ithaca, NY 14853