Electronics Forum | Sat Jun 24 07:23:06 EDT 2017 | tch
You will need to preheat the boards for a lead free selective solder process. A preheat module is critical for any wave or selective solder process, if you don't get the board preheated properly the solder is going to resist flowing to the top of the
Electronics Forum | Tue Jul 25 13:40:04 EDT 2017 | davegoad
I have some CERSOT-23 transistor packages with castellated terminals. The 4th lead (drain castellation) is electrically connected to the top of the device by the castellation. The castellation goes up the ceramic body and contacts the metal package
Electronics Forum | Wed Sep 20 16:15:53 EDT 2017 | davef
Some requirements to consider are: * Humidity and temperature controlled according to J-STD-001 * Electro-static discharge (ESD) control program according to ANSI/ESD-S-20.20. * Soldering technicians are trained and certified according to J-STD-0
Electronics Forum | Thu Oct 26 21:48:57 EDT 2017 | deanm
For selective soldering I would first look at the alloys your products require. Do you run tin-lead, lead free or both? If you run (or may run in the future) two alloys, then look for a machine that has quick change solder pots. Secondly, do your bo
Electronics Forum | Fri Dec 01 14:40:02 EST 2017 | emeto
Very interesting pictures. It shows paste height of 200um - which is at lest 6mil stencil deposit. That on the other hand posts another question. Can you measure the ground pad level in relation to the solder mask level with the SPI? I had assemblies
Electronics Forum | Thu Dec 28 16:20:12 EST 2017 | rgduval
Pictures of your issues would help us to help you. Pin holes/blow holes are generally caused by either moisture or flux volatiles/organics. Since you've virtually eliminated moisture, it might be time to look at your paste/flux. You can call eithe
Electronics Forum | Tue Jan 16 03:05:57 EST 2018 | majorelectronics
We would like to know some user reviews about software from Unisoft like ProntoPLACE, ProntoGerber Connection, ProntoVIEW MARKUP etc. What we want to know is how easy does it works even when you work with other part numbers that are listed in a BOM
Electronics Forum | Thu Feb 15 02:19:50 EST 2018 | Robl
Hi Leadthree, We have a combination of methods depending on volume, value, size, level of build, and what the customer does with them. So on high volume low value we have rigid plastic ESD boxes with lids, foam lined, that layers of custom vac form
Electronics Forum | Fri Mar 02 13:04:45 EST 2018 | shuchita
We are an ISO certified PCB & PCBA manufacturer located in USA. We are expanding our team at India(ahmedabad) office , 1) We require an SMT programmer that is familiar with SMT pick and place machines like Juki and/or Universal and softwares like
Electronics Forum | Thu Sep 13 15:09:07 EDT 2018 | reckless
So it took me a few months to figure out the compact reflow oven market. I bought the following ovens: Heller 1500EXL Essemtec RO300FC-C - QTY 2 DDM Novastar Gold Flow - Desktop DDM Novastar 1800HT - Conveyor Zevatech 5 zone oven T962C benchtop ove
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