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SANJAY,
THERE ARE TWO JEDEC STANDARDS FOR QFP'S.
MS-022; MQFP WITH BODY THICKNESSESS 2.0MM AND GREATER; COPLANARITY IS
0.1MM.
MS-026; TQFP WITH 1.0 AND 1.4MM BODY THICKNESSES; COPLANARITY IS 0.1MM
FOR 0.65MM LEAD PICH AND >.. 0.08MM FOR 0.5MM LEAD PITCH AND <..
MAURY
______________________________ Reply Separator _________________________________
Subject: GEN: Lead Coplanarity Spec??
Author: [log in to unmask] at smtp
Date: 1/22/97 10:53 AM
Technetters:
I have a couple of questions and would appreciate
any input...
1. What is the JEDEC/IPC spec on lead coplanarity
for QFP's?
2. Can anyone recommend any tinning houses that would
tin surface mount packages for us? I know one such place
is Corfin, are there any other popular ones?
Thank you
________________________________________________
Sanjay Rajan RF Communications Division
Harris Corporation Product Design Engineering
1680 University Avenue Phone: (716) 242-3923
Rochester, NY 14610 Fax: (716) 242-3174
________________________________________________
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