Electronics Forum | Wed Sep 15 17:13:53 EDT 2004 | GS
Do anyone of you know if are there any Standard (IPC, JEDEC, etc) telling how much can be the acceptable level of TIC (ugr/cm2 NaCl equivalent) allowed on surace of Connectors, Components,before to be assembled on PCB ? Many thanks Rgds GS
Electronics Forum | Mon Oct 31 08:47:27 EST 2005 | jdengler
IPC-7351 is the most complete I have found but is still missing some. Look here http://www.ipc.org/contentpage.asp?Pageid=4.6 Jerry
Electronics Forum | Fri Apr 06 09:36:46 EDT 2007 | pjc
FYI: IPC-SM-782 has been superseded by IPC-7351A, IPC-SM-782 land patterns previously found under the "Manufacturer Part Number" database portion of SM-782 Land Pattern Calculator are no longer maintained by IPC.
Electronics Forum | Thu Aug 16 12:52:41 EDT 2007 | russ
DAVE, Does this '7351 supercede the IPC-SM-782?(surface mount design and land pattern standard) how about IPC-CM-770? (guidelines for printed board component mounting) those are the two that I have? Russ
Electronics Forum | Mon Dec 09 16:10:50 EST 2013 | davef
IPC-7351 Land Pattern Calculator and Tools [landpatterns.ipc.org/] Generic requirements for surface sount Design and Land Pattern Standards, is supplemented by a footprint expert software tool
Electronics Forum | Mon May 19 15:13:05 EDT 2014 | davef
Consider this combination: * IPC-7351B - Generic Requirements for Surface Mount Design and Land Pattern Standard * IPC Tools & Calculators [ipc.org/contentpage.aspx?pageid=PCB-Tools-and-Calculators ] * Component fabricator suggestions BR ... davef
Electronics Forum | Sun Nov 10 16:07:31 EST 2013 | davef
First, require use of the IPC-7351B Standard as the sole basis for laying-out pads on circuit boards. Second, if someone wants to use a pad design that either: * Wasn't covered in IPC-7351B ... OR * Was for a component that was in the standard but
Electronics Forum | Tue Jul 24 08:22:16 EDT 2001 | markhoch
We're getting geared up to start placing 0402 comps. for the first time. I'm trying to "touch all my bases" before we actually go live. I've verified our placement machine capabilities and investigated my solder paste performance in regards to 0402'
Electronics Forum | Tue May 04 22:54:54 EDT 2004 | davef
Yeh, the IPC courtyards are for old ladies. I want to say that at one time IPC was talking about a new set of rules. Maybe, 7351 - SMT Footprint Design Guidelines??? Anyhow, Jim Blankenhorn at SMTPlus [ sales@smtplus.com ] has done THE best job o
Electronics Forum | Thu Jul 21 09:43:10 EDT 2005 | davef
We agree with Russ. The solderballs are probably the result of printing too much paste on the board. In designing your 5 thou thick stencil: * Aperatures for the pads should be identical to a IPC-7351 - SO8 [or worst case http://www.vishay.com/docs
