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- Newsgroups: sci.materials
- Path: sparky!uunet!gatech!destroyer!cs.ubc.ca!fornax!dgm
- From: dgm@cs.sfu.ca (Dennis Michaelson)
- Subject: Re: Need to make a glass surface rough ...
- Message-ID: <1992Dec29.001710.5400@cs.sfu.ca>
- Keywords: glass etching microelectronics
- Organization: CSS, Simon Fraser University, Burnaby, B.C., Canada
- References: <4rlrf7c@lynx.unm.edu> <6rlracd@lynx.unm.edu>
- Date: Tue, 29 Dec 1992 00:17:10 GMT
- Lines: 19
-
- In article <6rlracd@lynx.unm.edu> swami@chtm.eece.unm.edu (Swami srinivasan) writes:
- >
- >I need to make a 50 microns x 1000 microns section of glass surface
- >ROUGH. I have a mask with the required dimensions. Most etchants are
- >"smooth", and I suspect the common HF based etchants are, too. Are there
- >any wet chemical etchants that can be used?
-
- A suggestion borrowed from the craft of decorative glass etching would
- be to mix the HF with a biflouride, such as ammonium biflouride, which
- will leave a frosted surface. Unfortunately I do not know the proper
- mix ratio, but checking with the glassblowing shop in your Chemistry
- department may yield the answer, or look up glass etching in a public
- library under arts and crafts.
-
- Dennis Michaelson
- School of Engineering Science
- Simon Fraser University
- Burnaby, B.C. Canada
- dgm@sfu.ca
-