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March 1999

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Subject:
From:
Richard Hamilton <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 16 Mar 1999 12:22:35 -0700
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Hello again gang,

In researching this idea  of flatness or warp and twist, I have gone to the
IPC-4101 and have gone stupid!! So, HELP!!

On page 11, section 3.8.4.3 Bow and Twist Laminate Materials, it refers to
Table 8 on the next page. both my PCB designer and I are having a hard time
making out the proper way to use the chart. Can someone please render some
assistance on this, Please. I don't believe the conversion factor (metric to
inches) is the problem, but maybe we are making it since we don't seem to
come up with reasonable answers. An example would be great.

Thanks again in advance.

Richard Hamilton
Clemar Mfg. / Rain Bird
[log in to unmask]

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