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Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 25 Sep 2003 12:05:59 -0400 |
Content-Type: | multipart/alternative |
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Correction !
Pitch > 1.25 mm pitch shall not encroach both sides of the land or
exceed 0.05 mm
Pitch < 1.25 mm pitch shall not encroach both sides of the land or
exceed 0.01 mm
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Guy Ramsey
Sent: Wednesday, September 24, 2003 4:23 PM
To: [log in to unmask]
Subject: Re: [TN] Silkscreen in solder pad
Yes, there is. IPC-A-600 2.9.3
I am sure this requirement is also reflected in IPC-6012A
Solder Resist on other conductive patterns (SMT land patterns included)
< 1.25 mm pitch shall not encroach both sides of the land or exceed
0.05 mm
> 1.25 mm pitch shall not encroach both sides of the land or exceed 0.01
mm
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of West, Jim
Sent: Wednesday, September 24, 2003 3:33 PM
To: [log in to unmask]
Subject: [TN] Silkscreen in solder pad
Hi,
Is there a IPC standard for how much, if any silkscreen can overlap a
solder pad? What process is recommended for cleaning a solder pad with
silkscreen overtop of it? Examples I have are silkscreen on 0805 pads
halfway through it, and some with silkscreen just barely touching.
Thanks,
Jim
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