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From: "petrus bitbyter"
Subject: Re: Disk drive handling in assembly
X-Newsreader: Microsoft Outlook Express 5.50.4807.1700
Date: Fri, 04 Oct 2002 10:17:42 GMT
NNTP-Posting-Date: Fri, 04 Oct 2002 12:17:42 MET DST
Organization: chello broadband
What about mechanical shock during transport? I ever had a transport channel
that was said to be good until we mounted shockdetectors that proved the
"Chuck Simmons" schreef in bericht
> I have a few questions about how hard drives are handled in assembly
> situations when hundreds or thousands of drives might be handled in a
> day. The motive for this question derives from a question about high
> failure rate experienced by a particular company. I have already given
> my views on the problem to the engineering VP of the company and I am
> arraging a consultant to check my conjectures and look for other
> problems. But my questions concern how other companies handle hard
> drives. My questions are the following.
> Are all work surfaces of drive handling areas covered with soft ESD
> material so that drives may be set down on work sufaces without any
> possible mechanical shock?
> Are assemblers made aware of the extreme shock sensitivity of drives and
> made aware that forcing tools must never be used during installation?
> Are ESD procedures equivalent to those needed for semiconductor handling
> used in handling disk drives?
> Is the mechanical assembly into which drives are mounted designed to
> reduce transmission of shock to drives in handling the final assembly?
> Does the final product provide for appropriate cooling air for the head
> disk assembly and the electronics board mounted to the head disk
> I am little interested in this in that all of the things in my questions
> have been contributors to drive failure in the past. I am no longer
> involved in disk related business but I do get questions from time to
> time about them.
> ... The times have been,
> That, when the brains were out,
> the man would die. ... Macbeth
> Chuck Simmons firstname.lastname@example.org
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