At 03:50 PM 9/13/99 -0700, you wrote:
>Now people use CO2 lasers for this.

Yag also.  We've had a lot of this done for us (usually as ECO rework to
pads).

If only we could draw the s/m the way we actually want it delivered.  :^)

Dwight

I've heard
>of one shop who should be an expert by now on
>this. Haven't seen it listed yet by an
>outside service doing it tho.... Sure they
>would if the price was right.
>
>Groovy
>-----Original Message-----
>From: Bob Vanech [mailto:[log in to unmask]]
>Sent: Monday, September 13, 1999 6:48 AM
>To: [log in to unmask]
>Subject: Re: [TN] unmasking vias
>
>
>  John..
>          In my previous life, we did LOTS of solder
>  mask removal with the "HIGH-TECH" X-acto knife ;->,
>  soldering iron and careful worker (no shaky hands).
>  Wasn't always easy, but a good tech did a very
>  presentable fix. Would quess most rework sub. would
>  do that, but have no cost info. Reliability should
>  not be an issue, but let the experts comment. We did
>  conformal coat our assemblies and never hear of a
>  problem with our removal techniqe. My $.02. Good
>  luck and have a great day.
>
>                               Regards,
>  Bob Vanech                              Bob
>  BVAN Enterprise
>> hello everybody,
>>
>> I have run into a slight dilema, boards that we are building have several
>> vias soldermasked that are needed for ict testing. This raises several
>> questions:
>> 1)Is it possible to remove mask from vias?
>> 2)If so is this something that can be outsourced?
>> 3)How much would it cost?
>> 4)what are the reliabilty effects of doing this?
>>
>> thanks in advance.
>>
>> john koleszar
>> [log in to unmask]
>>
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