Electronics Forum | Tue Aug 31 13:16:23 EDT 2004 | GS
Hi Davef, if by using Omegameter 600 SMD I am reading 1,56 microgram NaCL/sqcm, what is the real value I am measuring? considering the 14 sensitivity ?
Electronics Forum | Sat Nov 18 08:42:11 EST 2006 | davef
Bow & twist: IPC-A-600. Acceptability of Printed Boards 1.5%; Goal 0.005" per inch; Practicle 0.007" per inch
Electronics Forum | Thu Nov 20 04:00:36 EST 2008 | caerleon
Our sub-contractors will be using SMD600. Thankyou all for your replies much appriciated.
Electronics Forum | Sat Nov 18 21:20:58 EST 2006 | Fer
Dave, May I ask where did you find the 1.5%, or the goal of .005" (or .007") per inch? The IPC-A-600 bow and twist standard calls for a .75% based on the calculation of the test method TM-650, method 2.4.22, which calculates the percentage based on
Electronics Forum | Wed Aug 19 05:00:56 EDT 1998 | Tom Blum
Hi there, I'm actually facing a lot of trouble with PCB's presenting up to 3mm of bow /twist at reception i.e. before assembly. The PCB size is 220 by 230mm. The boards are to be assembeled SMD double sides with 05.mm pitch on both sides. In order to
Electronics Forum | Mon Jun 29 14:36:01 EDT 1998 | Claudio Carnevali
We are an italian electronic company and we assembly th & smd (http:\\www.mobilia.it\egs). We know that you need a thermal profiler but without sopending a fortune. We made TOM300 and easy & powerful profiler that you can buy at about 1,600 USD compl
Electronics Forum | Wed Nov 19 06:02:22 EST 2008 | caerleon
Hi all, I have been in the game for near on 15 years and finally something has stumped me! As this site has always provided a wealth of knowledge and at times some amusement I have decided to post it here. Ok. My company uses a test method on an Om
Electronics Forum | Wed Dec 31 10:09:27 EST 1997 | Ken Daniels
| Has anyone had any experience with thermal shocking | and cracking of SMD capacitors during the rework process? | My company was advised to preheat capacitors to 125 C | at a rate of 2 C/sec before replacing them onto boards. | Would this maybe
Electronics Forum | Wed Aug 19 12:20:24 EDT 1998 | MARK J.
| Hi there, | I'm actually facing a lot of trouble with PCB's presenting up to 3mm of bow /twist at reception i.e. before assembly. The PCB size is 220 by 230mm. The boards are to be assembeled SMD double sides with 05.mm pitch on both sides. In orde
Electronics Forum | Sat Sep 04 06:25:07 EDT 2004 | GS
Many Thanks Dave for your patience (GBY). I was just trying to give a chance to our connector Supllier to read few micrograms less of NaCl found with the connectors. But even if using a "bonus formula" they are out of specs. Following it could be i
