Hello Paymon,

In addition to Sec. 2.2
Suggest you see:	See 2.10 Pattern Definition - Dimensional
			See 3.2 Conductive Patterns - General	
These are IPC-A-600F, find the equivalent in Rev. G.  Good luck.

Paul
 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Dehoyos, Ramon
Sent: Friday, May 04, 2007 6:43 AM
To: [log in to unmask]
Subject: Re: [TN] Missing copper/HASL finish in many spots on the ground
planes

	Check IPC-A-600G Section 2.2 Base material Surface:
	Ramon
 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Paymon Sani
Sent: Thursday, May 03, 2007 4:39 PM
To: [log in to unmask]
Subject: [TN] Missing copper/HASL finish in many spots on the ground
planes

Hello All,

 

My company is receiving HASL PCBs with pin holes. There are spots on the
PCB that is missing copper and therefore HASL coverage. They are mostly
in the ground planes. What IPC criteria should we use to inspect the
PCBs?

 

Thank you in advance,

Paymon


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