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- From: gambit@uxa.cso.uiuc.edu ()
- Subject: Chemical thinning of GaAs
- Message-ID: <C0rE0A.4pp@news.cso.uiuc.edu>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Date: Tue, 12 Jan 1993 20:52:55 GMT
- Keywords: TEM, sample preparation
- Lines: 21
-
-
- I am currently trying to improve TEM sample preparation for gallium
- arsenide specimens. My present method of production is by dimpling
- the GaAs to about 50 microns, and then using chemical thinning to
- produce an electron transparent region. However, I have not been getting
- very useful results after the chemical thinning. This is either a result
- of the thinning process itself (I am using sulfuric acid and hydrogen
- peroxide) or the cleaning process afterwards. The process is time-consuming
- as well. I would like to be able to improve it as much as possible, but
- am having difficulty finding any references on this technique.
-
- Does anyone know of any reference materials on chemical thinning of
- semiconductors? Please E-mail me if you do. Thanks in advance!
-
- ------------------------
-
- Benjamin W. Lagow
- Grad Res Asst, Dept. of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
-
-
-