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For background, TMAH (tetramethylammonium hydroxide) is widely used in commercial resist developers (3%) and for HSQ developing (25%). In its 25% concentration, TMAH is a potent contact neurotoxin, which is fatal roughly 75% of the time, for exposures greater than 7.5% of body area. Nasty stuff. |
Several companies now have safer alternatives available, which we'd like to try out, such as: |
Envure 3330 (Sachem Chemical), |
E-Grade THEMAH SLM ((hydroxyethyl) methylammonium hydroxide, from Huntsman Chemical), and |
Novo-safe SE-33 (ethyl tri-methy ammonium hydroxide from Transene). |
We are particularly interested in using one of these as an HSQ developer, so we can do away with 25% TMAH. |
Any experiences, good or bad, will be most welcome. |
Thanks, |
Mac Hathaway |
Senior Process and Systems Engineer |
Harvard Center for Nanoscale Systems |
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From kckeenan at seas.upenn.edu Thu Jun 29 10:01:08 2023 |
From: kckeenan at seas.upenn.edu (Kyle Keenan) |
Date: Thu, 29 Jun 2023 10:01:08 -0400 |
Subject: [labnetwork] distributor for cleanroom raised floor systems |
Message-ID: <CAGTqYdFc2dw-mhLCj-JuHg6h77frE-SdoYKADqC+4VtVnGo6QQ@mail.gmail.com> |
Hello, |
I am in need of some additional/replacement components for the raised floor |
system in our cleanroom, which was manufactured by Hae Kwango Co. Ltd. in |
South Korea. Aside from the odd reseller that may have a some of what I |
need, I am not having any luck finding a distributor in the US for this |
company, and I'm hoping some of you may have suggestions. I'd also be |
willing to use parts from another manufacturer, so long as they can be |
integrated into our current system. |
I look forward to your responses. |
Thank you, |
-- |
Kyle Keenan |
Senior Manager - Laboratory Operations |
Quattrone Nanofabrication Facility |
University of Pennsylvania |
P: 215-898-7560 |
F: 215-573-4925 |
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From rlc12 at cornell.edu Mon May 1 11:18:37 2023 |
From: rlc12 at cornell.edu (Rebecca Lee Vliet) |
Date: Mon, 1 May 2023 15:18:37 +0000 |
Subject: [labnetwork] REMINDER: Registration is open for the June 2023 CNF |
TCN Short Course |
Message-ID: <BL0PR04MB47717432F6860C869CE81D92AB6E9@BL0PR04MB4771.namprd04.prod.outlook.com> |
Please post the attached flyer as well as share the announcement below with other members of the scientific communities. Thank you! |
CNF Technology & Characterization at the Nanoscale (CNF TCN) IN-PERSON Short Course |
June 6, 2022 - June 9, 2023 |
The CNF TCN will be held in-person Tuesday, June 6, 2023 - Friday, June 10, 2023. Each day offers lectures and laboratory demonstrations designed to impart a broad understanding of the science and technology required to undertake research in nanoscience. TCN is an ideal way for faculty, students, post docs and staff members to rapidly come up to speed in many of the technologies that users of the CNF need to employ. Members of the high tech business community will also find it an effective way to learn best practices for success in a nanofab environment. Attendance is open to the general scientific community. |
Note: The short course does not replace the three part training required to become a user of our facility. To become a CNF user, please visit the "Getting Started" link (https:cnf.cornell.edu/howto<https://cnf.cornell.edu/howto>) on the CNF website. |
For more information and to register visit: https://cnf.cornell.edu/education/tcn |
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From jdthompson at princeton.edu Mon May 1 13:45:25 2023 |
From: jdthompson at princeton.edu (Jeff Thompson) |
Date: Mon, 1 May 2023 13:45:25 -0400 |
Subject: [labnetwork] Job Opening at Princeton |
Message-ID: <CAKRxi9QGpmoddCg_8g+18nxbgpBjcsBaMG5E9P_E=3=7G2f4JA@mail.gmail.com> |
Dear Labnetwork members, |
Princeton University is seeking an inaugural Director to design, |
commission, and manage a new Quantum Cleanroom. As part of a broader |
investment in support of Princeton's world-leading research in quantum |
devices and materials, Princeton plans to construct a new cleanroom |
tailored to the exacting requirements of this field, supporting the |
fabrication of electronic and photonic devices in a wide range of materials |
including silicon, III-Vs, diamond, two-dimensional materials, and |
superconductors. The key aims of the facility are to maintain a high level |
of cleanliness and process control, and flexibility to meet the future |
needs of this rapidly changing field. This cleanroom will coexist with the |
general-purpose Micro-Nano Fabrication Center (MNFC) cleanroom housed in |
the Princeton Materials Institute. |
Successful candidates will have a strong vision for all aspects of the |
Quantum Cleanroom and deep technical knowledge of cleanroom processes and |
infrastructure. Excellent leadership and interpersonal skills will help |
foster a positive and productive culture for the Quantum Cleanroom, |
including effective relationships between the staff, student and |
postdoctoral researchers, external users, faculty, and administrators. The |
Director will work closely with faculty committees on the design of the |
facility and setting policies and priorities. |
The job posting is available at the link below, and I am available to |
answer any questions about the position. |
https://puwebp.princeton.edu/AcadHire/apply/application.xhtml?listingId=29165 |
Sincerely, |
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