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August 1998

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Subject:
From:
Melanie Racuya <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 18 Aug 1998 18:11:45 +0000
Content-Type:
text/plain
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text/plain (29 lines)
Hello technetters,
        I've been browsing the internet for ipc's standard regarding the
standards that we are to follow regarding the dust particle count.
For a 10K class clean room and a 0.5 microns  particle size, we are
allowed a 10,000 particles  per cu ft.
        In my case, since we are encountering problems regarding fibers and
we have checked that the environment contributes to this problem, we
decided to check the particle count in our area. Using the clean room
standard we failed. What I want to know is : What is the standard
particle count for a particle size of 2 microns? Our environment is
not a clean room environment and we're producing the flex for HDD.
Please help me with this problem...I just need the standard.

Thanks and best regards,

Bing

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