NetNews Usenet Archive 1992 #18/NN_1992_18.iso/spool/sci/astro/9127

Internet Message Format | 1992-08-21 | 1.4 KB

Xref: sparky sci.astro:9127 sci.electronics:14703 sci.optics:901 comp.lsi:556
Newsgroups: sci.astro,sci.electronics,sci.optics,comp.lsi
Path: sparky!uunet!decwrl!csus.edu!netcom.com!gadallah
From: [e-mail] (Larry Gadallah)
Subject: Help! How can I clean a CCD chip?
Message-ID: <[e-mail]>
Date: Fri, 21 Aug 92 18:54:23 GMT
Organization: Netcom - Online Communication Services  (408 241-9760 guest)
Followup-To: poster
Keywords: CCD silicon cleaning
Lines: 25

I have a VLSI CCD chip which has gotten what looks like a blob of (food)
grease on the imaging surface. Needless to say I would like to get rid
of the blob in order to use the chip. All I have been able to gather
about the cleaning of CCD devices is "don't" and "use a soft brush or
dry gas". In my case I think that neither a soft brush or a dry gas
would work. I think I need some sort of solvent to lift off or dissolve
the grease.

My question is: What solvent should I use to clean this delicate
structure and how should it be used or applied? I was thinking of Freon
or ether, but I really don't know. What solvents are used during the
manufacture of such devices?

Please reply by e-mail to [e-mail] (Larry Gadallah)

I will summarize and post to the appropriate group if there is a large
response.

Thanks!
Larry Gadallah
AECL Research
Pinawa, Manitoba
[e-mail]
Voice [phone] x2603