Electronics Forum: circuit (Page 159 of 254)

reliability of oxidized SMT parts soldered with SnPb

Electronics Forum | Thu Jun 28 09:38:20 EDT 2012 | 14367

PSMN130-200D MOSFET TRANSISTOR D2PAK - failure of some parts led to investigation, oxidization or surface contamination was noticed on remaining parts. The surface contamination could be removed when fingernail was drawn over the bottom terminating s

MSL Component - Popcorn Temp.

Electronics Forum | Wed Jul 04 13:25:03 EDT 2012 | davef

Baking boards to remove moisture takes a lot more energy than you'd think. Following on with this, Chris Hunt from NPL gave a presentation at IPC APEX 2012 about the results of his research ["Impedance Testing for Sensitivity to Delamination in Print

ICT testing to improve yields

Electronics Forum | Thu Aug 23 21:36:21 EDT 2012 | padawanlinuxero

Hello I would go for a Teradyne Z18xx those are kinda low budget, there are some companies that sell them refurbish right off my head I can think of Rocky Mountain Test Equipment talk to John Cowling (303 693 3322) and for the ICT fixtures so that

PCB manufacturer references

Electronics Forum | Thu Sep 13 04:18:33 EDT 2012 | huanyupcb

Dear Sir or Madam HuanYu Future Technologies Co., Ltd is one of the China leading Printed Circuit Board Manufacturing Enterprises.Main supply Aluminum core PCB,copper core pcb ,flexible PCB,fr4 pcb ,Double-sided PCBs , Double-sided flexible PCBs ,We

Please help..... I beg of you

Electronics Forum | Tue Oct 16 14:18:41 EDT 2012 | ericrr

My guess is a manual machine would be good for a after sales "repair station" or the engineers doing product development, without it you would have almost drop a large integrated circuit (IC) on to the spot and poke around with it moving it sideways

Flex pcb carrier / palett

Electronics Forum | Sun Dec 02 16:18:22 EST 2012 | sarason

A few years back when I was working in a Hybrid company we used carriers machined from aircraft grade aluminum. Its easy to machine on a Mill doesn't bend so easy when mishandled.The thing to know is do your flex circuits sit flat when placed on the

I need suggestions on which low-medium volume pick and place capable of running 0201 / 01005 components I should buy.

Electronics Forum | Tue Feb 26 16:07:07 EST 2013 | kevslatvin

What vintage are the gem series you are running? We have some '06 Opal Xii's and place 0201's with them. Haven't tried 01005's. I know you said new but Cardinal Circuit has an auction gonig right now that has a 2010 Assembleon MG1 and a 2006 MG2 and

Assembleon Gem series Feeders

Electronics Forum | Wed May 29 12:15:10 EDT 2013 | kevslatvin

Is this the CL or CLi feeders? I've always gotten mine from Assembleon. Mostly because I can't seem to ever find any used CLi ones when I need them, which is what we use. Seems to be plenty of used CLs around. You can browse thier webshop on thier w

BGA Warping at the corners

Electronics Forum | Mon Jun 17 09:52:33 EDT 2013 | sara_pcb

My circuit board contains 11 x 11 matrix 1mm pitch BGA, The device was tested in socket on evaluation Board. We handed over the actual PCB & devices for re-flow. The assembly house first re-flowed all the SMT components other than BGA. BGA was placed

NADCAP and thermocouple calibration

Electronics Forum | Wed Aug 07 16:49:15 EDT 2013 | hegemon

You mean you don't pull all of your thermocouples out of the ovens once a year and send them out for calibration? - lol Tough question. You have a calibrated datalogger. (I assume) You have an oven with preset zone temps, each zone controlled by a


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