seems there is output from Protel to PowerPCB, don't know how well it works though
From: "Protel Hell" <[EMAIL PROTECTED]> Reply-To: "Protel EDA Forum" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: [PEDA] Solder mask... Date: Wed, 17 Dec 2003 10:27:11 -0600
the minimum sm width is 4 mils, anything less becomes a problem
From: "DUTTON Phil" <[EMAIL PROTECTED]> Reply-To: "Protel EDA Forum" <[EMAIL PROTECTED]> To: "Protel EDA Forum" <[EMAIL PROTECTED]> Subject: Re: [PEDA] Solder mask... Date: Wed, 17 Dec 2003 10:04:10 +1100 (EDT)
Hello Tom,
Yes. In fact, I would recommend it. The thin sliver of solder mask that you may be able to achieve in between the pads of such devices tends to break away anyway and becomes a problem.
regards,
Phil. C.I.D.
-----Original Message----- From: Tom Robinson [mailto:[EMAIL PROTECTED] Sent: Wednesday, 17 December 2003 7:56 AM To: Protel EDA Forum Subject: [PEDA] Solder mask...
Is it ok to block open the solder mask on gull-wing i.c.'s with .4mm AND .5mm pitches?
It seems to get enough web in between the pads to stick will cause a LPI registration thats too tight, with possible smearing. And if you make the pads themselves too narrow -- thats another problem.
Please advise,
Best regards,
Tom Robinson
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