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August 1998

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Thu, 20 Aug 1998 16:38:23 PST
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"TechNet E-Mail Forum." <[log in to unmask]>, [log in to unmask]
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     Dear friends,

     I'm interested in a method of creating "keep out" areas on my PWB
     designs which identify those locations not to be conformally coated.

     Some have suggested creating a silk screen on the PWB, some
     dimensioning it on the assembly drawing, others similar yet equally as
     difficult to change processes.

     Has anyone devised a method to accomplish this without the rework
     problems that are associated with change orders (i.e. obliterating
     silk-screen and remarking, changing assembly drawings, etc.)?

     Is there a reworkable or peelable solder mask (type) of material that
     can be easily applied to assemblies at any level then be removed prior
     to installation of the PWB into the box/rack/chassis?

     Thanks much, Rich.
     310-364-9862
     [log in to unmask]
     [log in to unmask]

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