Electronics Forum: ipc and cph (Page 7 of 27)

MSD in asembly and rework

Electronics Forum | Mon Mar 23 16:20:10 EST 1998 | Robin Arnold

Do you know if there is an IPC standard or industry standard that addresses the proper process for handling MSD's in the production environment....? (rework etc.) Not the receiving area. Thanks so much, Robin Arnold PCB Development Harris Semiconduc

MSD in asembly and rework

Electronics Forum | Mon Mar 23 16:17:39 EST 1998 | Robin Arnold

Do you know if ther is an IPc standard or industry standard that addreese the issues regarding the proper process for handling MSD's in the production environment....? (rework etc.) Not the receiving area. Thanks so much, Robin Arnold PCB Development

board stretch and IPC -D-300G

Electronics Forum | Tue Nov 13 09:25:42 EST 2001 | davef

Maybe. While it doesn't help with your current problem, there is nothing that says that you cannot impose requirements in your purchase order that are stricter than D-300.

voids- leaded and chip components

Electronics Forum | Mon Jan 12 18:06:38 EST 2004 | Kris

Hi, Is there any standard for voids in a leaded device or a chip component ? IPC 7095 lists maximum allowable voiding for BGA devices but has no information on leaded devices Appreciate your help- thanks

V-scoring design and equipment questions

Electronics Forum | Mon Jun 12 14:33:40 EDT 2006 | pjc

IPC spec is V-score shall not be more than 1/2 board thickness. They should be V scoring 1/4 off top and 1/4 off bottom equally.

V-scoring design and equipment questions

Electronics Forum | Tue Jun 13 08:33:11 EDT 2006 | davef

IPC-2222, 5.3.1 defines the parameters of making scoring cuts and the tolerance of the cuts, but does not specify the cuts. Our spec for 0.062" thick FR-4 boards is: 0.018-0.024"

Bow and twist of PCB's

Electronics Forum | Fri Apr 20 05:32:39 EDT 2001 | dougie

Hi, I've just splashed out �60 on IPC-A-600F trying to find out the formula for measuring the bow and twist of raw PCB's. Much to my dismay there are 10 lines on the subject in the whole standard. Worse still is that it tells me nothing I don't alre

board stretch and IPC -D-300G

Electronics Forum | Mon Nov 12 13:04:35 EST 2001 | slthomas

We've got a problem with a fine pitch board that has about .005" registration error at each end (towards the center of the board) when it's printed. Apparently we've got a case of board stretch generated at the fab shop. I still have to do some mea

conformal coatings and flux compatability

Electronics Forum | Tue May 23 12:18:25 EDT 2000 | mike weekes

Which companies would you consider for protective coatings, (conformal coating) and other levels of protection? I am taking a fresh look at alternatives. Know any good tests for testing compatability of coating with flux - aqueous or no clean? SMT

Bow and twist of PCB's

Electronics Forum | Fri Apr 20 07:12:22 EDT 2001 | wbu

Dougie, oh yes, it�s a bit short that chapter. I have the Revision e in front of me and this one contains in the appendix the needed IPC-TM-650 Test method for bow and twist. Can�t think that they don�t have that in the new revision. Hope you find


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