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May 2000

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Subject:
From:
Phil Crepeau <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 8 May 2000 13:38:04 -0700
Content-Type:
text/plain
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text/plain (113 lines)
hi again,

this is a good point.  maybe the acid trap being referred to is something like a pth that is improperly tented.

a second point.  when i previously replied ...'if the fabricator doesn't care'... i was careless myself.  i should have said that 'if after running a couple of design rule checks and found nothing wrong...'.  sorry about that.

phil

-----Original Message-----
From: Howieson, Rick [mailto:[log in to unmask]]
Sent: Monday, May 08, 2000 1:30 PM
To: [log in to unmask]
Subject: Re: [TN] What is an acid trap?


Hello,
I can't see acid being trapped around traces, unless the fabricator has
extremely poor rinses, however I've seen solution trapped in holes where
a designer requires the holes to be plated shut.
Rick
GTC

>-----Original Message-----
>From:  Phil Crepeau [SMTP:[log in to unmask]]
>Sent:  Monday, May 08, 2000 2:11 PM
>To:    [log in to unmask]
>Subject:       Re: [TN] What is an acid trap?
>
>hi,
>
>well, if the pwb fabricator can build the board to your specifications why
>not let them.  if the pwb fabricator doesn't care, find another.  this
>fabricator evidently cared enough to run more that one design rule check to
>see if anything was a problem.
>
>phlk
>
>-----Original Message-----
>From: Douglas Pauls [mailto:[log in to unmask]]
>Sent: Monday, May 08, 2000 12:48 PM
>To: [log in to unmask]
>Subject: Re: [TN] What is an acid trap?
>
>
>In a message dated 05/08/2000 12:43:31 PM US Eastern Standard Time,
>[log in to unmask] writes:
>
>>  if your board fabricator doesn't care, should you?
>
>Hmmm.  Should an assembler be concerned with a board with entrapped acid?
>Hmmmmmmmm.  Should an assembler be even more concerned by a fabricator who
>doesn't care?  Hmmmmmmmmmm.
>
>Doug Pauls
>
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