Electronics Forum | Wed Jun 16 08:56:34 EDT 1999 | Vic Lau
Do anyone have any experience on assembling high frequency product, 1.8GHz or 2.4GHz. In our production line, we manufacture 1.8GHz product with using no clean paste (RMA type) for reflow and no clean wire for rework. In our functinal test,either a
Electronics Forum | Tue Oct 19 07:52:51 EDT 2004 | mksslcheng
If there has general standard to guide which type of component can not be cleaned ? No-clean flux be used in solder process ,and the PCBA we build be subject to the filed of high frequence (13.56MHz). Is it very critical if the coating that adhered
Electronics Forum | Thu May 12 10:09:11 EDT 2005 | LUPO
HI, What are advantages and disadvantages of selective sodlering process? Does anyone have any experience with selective soldering machines SEHO? Is it possible soldering of through-hole pins on PCB close to high frequency of the SMT componen
Electronics Forum | Wed Aug 10 07:55:21 EDT 2005 | ajaydoshi
we are using heareous F381, F352 no clean solder paste. specially in qfp for high frequency board we observe that cleaing / removing of ' no clean flux 'is require. if we do not clean same most of time after all test & envioumental test it shows pin
Electronics Forum | Wed Aug 10 17:19:24 EDT 2005 | Steve Stach
The propensity for flux residues to cause shorts can be increased in humid environments where water molecules hydrate the surfaces. At high frequencies, electrons travel on the surface of conductors/insulators, increasing the likelihood of shorts in
Electronics Forum | Fri Jan 05 20:12:22 EST 2007 | engr
I am using PWB material Rogers 6002 High Frequency Laminate. The PWBs are assembled. They were washed and will require a bake out. Some people say, no bake out is required for the material. I am getting different reads in test if the CCAs are not
Electronics Forum | Sun Nov 04 01:04:04 EST 2007 | omidjuve
we are manufacturing some rf boards that works on a high frequency margins now our boards doesn't pass in impedance test and we concluded that the problem might cause by the solder paste that we are using . our solder alloy is sn62/pb36/ag2 and we t
Electronics Forum | Fri Sep 09 05:58:58 EDT 2016 | jswatt
yoru x-ray supplier should be able to help however you can do a rough cut calculation byt just printing it out and measuring it, your interested in ration (%) of the void and where in the joint it is to tell you it it's really an issue. Also importan
Electronics Forum | Mon Nov 29 15:09:24 EST 2021 | saberbouras
Hi, I have experienced the same troubleshoots for our machines and computers, accroding to the expert who did the harmonics study our problem is created by the intense use of UPS, lights yes lights. The resultant high frequency variation in sinewave
Electronics Forum | Mon Mar 03 14:48:11 EST 2003 | genny
I've never heard of a customer saying just 'we want decoupling caps'. Very interesting. In RF applications - frequencies 50MHz up into several GHz, the location of where they are put is just as important as what the value is. Decoupling caps are p
