DS3000-140A MONITOR ASSEMBLY DS3000140A81492506 GE SPEEDTRONIC / GE DRIVE SYSTEMS DS3000A-140A CRT MODULE DS303A0XAC03XH DC CONTACTOR DS303A2A0XAC03XH DC CONTACTOR DS303A2C0A021XH CONTACTOR DS303A3C0XA003XN GE CONTACT DC SIZE 3 2P NO. EX
Electronics Forum | Tue Jul 04 02:31:55 EDT 2006 | Mustang
Calling for an input from the Experts our there. Our customer is questioning the cleanliness of the no-clean product that we produced for them. We were asked to clean the board (localised cleaning) after rework (IC need to be changed due to an up re
Electronics Forum | Sat Feb 14 19:35:51 EST 1998 | C. Lao
Mr Lao We have some specialist knowledge on this subject and offer both equipment and services for these tests. My first recommendation is that take coupons manufactured by your PC Fabricator and then samples at each manufacturing stage: Bare coupon
Electronics Forum | Mon Mar 05 15:29:50 EST 2007 | ck_the_flip
When no-clean flux and no-clean soldering first came out in the late 80's / early 90's, there were lots of White Papers written about conformal coating adhesion and no-clean flux. I'm pretty sure all CC's will adhere to today's chemistries. To be o
Electronics Forum | Wed Aug 21 17:44:32 EDT 2002 | davef
Splitting hairs, I expect SIR of all solderability protection, including OSP, to decrease after reflow. What�s more, I expect the SIR of all solderability protection to pretty much decrease over time. The �comb pattern� test specimens meet requirem
Electronics Forum | Thu May 14 14:48:45 EDT 1998 | Dave F
We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. We have no custo
Electronics Forum | Thu Jul 06 16:00:11 EDT 2006 | samir
Ionic Cleanliness Testing: IPC-TM-650, Test Method 2.3.25, Section 5, "Dynamic Extraction Method", is the most commonplace method in the industry to test YOUR PCBA's for cleanliness. Run it through your process as normal, and send it out for testin
Electronics Forum | Tue Jul 04 08:04:37 EDT 2006 | davef
The heat from a soldering iron will push raw flux across the surface of the board and into surprising places. It's bad practice to squirt liquid low residue flux on the board during rework, because the portion of the flux that does not get heated pr
Electronics Forum | Fri May 15 10:51:12 EDT 1998 | Justin Medernach
| We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. | We have no c
Electronics Forum | Fri May 15 12:01:34 EDT 1998 | Justin
| | We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. | | We have
