Electronics Forum | Mon Nov 24 11:26:08 EST 2008 | sjones
I am having problems soldering a Rohs compliant BGA ATMEL AT91RM9200(rohs compliant board) This device recommends a soldering profile from J-STD-20 and a minimum peak package temperature of 250 centigrade,peak 260. However a lot of the other componen
Electronics Forum | Mon Mar 30 04:33:48 EDT 2009 | 89jeong
Hi all We also met the solder nonwetting problem as below. This happend after reflow and this is Rohs cpmpliant. How do i solve this problem? Thanks
Electronics Forum | Wed Aug 13 19:57:05 EDT 2014 | suroy
After wash cycle, some of the inductors are open (broken wire). Resistance across the two ends should be below 4 ohms (normal) however on broken wire shows above 200 ohms. I am wondering if anyone else has seen this problem. We are using High-Reliabi
Electronics Forum | Wed Oct 10 13:51:08 EDT 2007 | petep
Coilcraft has posted the following and I am wondering how you folks are handling the use of coils in a Water Soluble world. PCB Washing and Coilcraft Parts Coilcraft tests for resistance to solvents per the following specification: Resistance to s
Electronics Forum | Sat Mar 20 15:59:13 EDT 2010 | emanuel
I have a big problem in setting an smd inductor camera recognition. None of the existing options in the software version 0.99B sems to work. The part is a 6x6mm with chamfer corners of 1mm on each side, looking more as an octagon. Not only this, the
Electronics Forum | Tue May 26 10:23:53 EDT 2009 | mun4o
hi, i am proccess eng solder wave process.I have problem with a PCB.There have ceramic SMD capacitor, SMD thermistor and SMD inductor 1uH.After reflow all is OK, but after SW these components are broken???The pin is separated from the body???the que
Electronics Forum | Tue Feb 28 10:18:35 EST 2006 | Steve Gregory
I just went through the same problem. We have an inductor that is made with a bundle of 30-strands of Litz wire that is vaccuum coated with varnish, and have the ends of the wire bundles tinned that we have to solder to SMT pads on the board. The ind
Electronics Forum | Fri Jun 30 06:47:51 EDT 2006 | AR
Hi All the other components on the PCB solder just fine, including resistors, ceramic capacitors, inductors, SOT23 etc. etc. so I do not think that it is a PCB problem. It is clearly focussed on this single component. Haven't yet tried scraping or
Electronics Forum | Thu Feb 13 19:08:31 EST 2014 | darby
Have to agree with Sr Tech and Spoilt - you'd have to really mistreat your paste these days for it to be the root cause. However, try another paste to eliminate that; making sure you abide by the suppliers specs. Pad design, stencil design,(includin
Electronics Forum | Fri May 23 19:59:26 EDT 2014 | jhaye
hi everyone, I just got some question with regards to the life span of components from the date it was packed from supplier. Does the parts more than 2 years from the date it was process by supplier: 1. Can it still be used in PCBA?? 2. will it not
