Electronics Forum | Fri Oct 03 10:24:17 EDT 2008 | chineechooze
I have a problem with placement repeatability and accuracy on this Samtec connector. The customer wants to use a "nubbed connector" which has to be placed in the corresponding PCB holes. When the nubs miss the holes, the part becomes "lifted." SEE
Electronics Forum | Thu Jun 28 17:05:46 EDT 2012 | davef
Here’s what we seem to know: * There’s a problem with voiding in the solder connections of SMT capacitors * A void is an open area caused by air or process fluid that is trapped within a solder connection * Voids are an allowable condition as long as
Electronics Forum | Thu Oct 25 13:35:47 EDT 2012 | davef
Here's a paper that may help http://www.ipcoutlook.org/pdf/assembly_challenges_bottom_terminated_ipc.pdf Temperature Impact * Profile didn’t have a significant impact on voiding. * Voids slightly increased with higher temperature. Reflow Atmosp
Electronics Forum | Thu Feb 21 10:11:36 EST 2013 | patrickbruneel
The backflow in the wave started to become very important with the development of no-clean/no residue fluxes. These fluxes don’t have (or at least shouldn’t have) rosin, resin or other vehicles in the formulation which encapsulate surface oxides from
Electronics Forum | Wed Jun 12 13:27:28 EDT 2013 | joeherz
Our customer wants to do an overmold operation (3rd party to us) on the non-populated side of a rigid flex assembly. Their inquiry below: "We are going to end up over molding plastic over the back of this rigid flex to form an enclosure but wanted
Electronics Forum | Thu Jul 09 22:45:42 EDT 2015 | cathy247
Hello Maxim, we offer below services with Popular Competitive Pricing: －Express PCB Prototyping(2-28 layer) －HDI PCB －Flexible Printed Board(1-8 layer) －Flexi-rigid Printed Board －High Frequency Board(Rogers,Arlon,PTFE) －Blind/Buried Via Board －High
Electronics Forum | Wed Jan 13 12:17:47 EST 2016 | trampacorp
Thanks for your input Michael. Basically the > boards had been go through from washing and even > ionic contamination already. In order to > eliminate or detect the flux residues, is there > any equipment something like a uv lamp that can > dete
Electronics Forum | Thu Apr 21 15:28:14 EDT 2016 | curiousman
My company bought a used EBSO SPA 400-F selective solder machine at an auction. At the time we bought it we were not sure what kind of solder it was. So we had the solder sent in and analyzed, and it was leaded instead of lead-free. What options do I
Electronics Forum | Fri Aug 19 08:00:13 EDT 2016 | eplankey
I’ve been tasked with acquiring both pricing and specification information on potential X-Ray units. If possible I would like to gather information on both low-end and high-end units. Here is some information on our facility. I have been to facili
Electronics Forum | Sat Feb 25 12:01:28 EST 2017 | ttheis
I'm setting up a asymtek millenium m-cob style dispenser for the first time and running through the master offsets routine but when it attempts to find the needle in the nsz needle sensor it works in the x direction but when it attempts to locate in
winsouce.jpg)