Electronics Forum: .0

LGA36 6.5 x 3.5 mm

Electronics Forum | Thu Apr 12 22:54:06 EDT 2007 | mika

conductor on the narrowest place ~0.07mm we suggest them to go for a PCB solder pad down to 0.30mm. The Conductor width is: 0.2mm The current problem they are having now is that there will be a problem with 14V to narrow the conductor to the narrowe

Gold Surface Finish on PCB's

Electronics Forum | Thu Dec 08 07:55:16 EST 2005 | davef

Your understanding of the situation is correct. In both cases, you solder to the nickel. The gold [Au] protects the nickel from oxidation. When soldering, the gold moves into solution in the solder and forms an intermetallic compound [IMC] with th

screen printer

Electronics Forum | Tue Apr 21 02:28:54 EDT 2015 | dinhhuunam

Juki GL-1.... Any thoughts? I'm New to the > industry and I'm trying to buy a new screen > printer. I have two in mind, DEK and Juki. Hi Sir, I'll advise you the SJ INNOTECH Vision Screen printer Best Solution & Service for You Model HP-520S Hi

0402 stencil design

Electronics Forum | Tue Feb 04 22:28:16 EST 2003 | davef

You could reduce the paste by about 70%. Solder balling and tombstoning will be the issues to fight. The drivers to these don't change with the component size. Use the fine SMTnet Archives for background. Aperture Size and Thickness of Solder Pas

Re: Missalingment 0402 Capasitor by Vision on TCM1000

Electronics Forum | Fri Oct 01 06:45:36 EDT 1999 | JAX

Hi, We are running 0402 component on the TCM1000 and we find that teher will be missalignment on 0402 Capositor. We have identified that the missalignment is caused by the wrong information from the vision system while doing vision centering.

Re: Missalingment 0402 Capasitor by Vision on TCM1000

Electronics Forum | Fri Oct 01 07:25:05 EDT 1999 | Wolfgang Busko

Hi, We are running 0402 component on the TCM1000 and we find that teher will be missalignment on 0402 Capositor. We have identified that the missalignment is caused by the wrong information from the vision system while doing vision cente

wave soldering and solder bridge

Electronics Forum | Mon Dec 17 12:06:58 EST 2007 | pjc

5 Steps to Eliminate Bridges: 1. Establish (wave) Parallelism First and foremost, you must establish board-to-wave parallelism. This is the prerequisite to any wave solder process control. For an understanding of the power of this approach go to ht

Ionic Contamination Tests

Electronics Forum | Tue Sep 25 17:42:11 EDT 2007 | gsala

your comments will be appreciated, please; IC tests have been performed on two kind of Raw PCBs (HASL) samples by adopting three different methods : First Sample (supllier A) - Omegameter 600 SMT, solvent=40�C: extratcing time 10 min result = 0.2

UBLOX Tim-4A reflow problem

Electronics Forum | Fri Dec 08 19:09:44 EST 2006 | darby

I have just started production run using this component. After reflow I see that there is an undercut of solder between the pcb and the lead instead of a fillet. This means that some of the leads are sitting above the solder with no wetting to the co

How to perform buy off a new Pick & Place machine

Electronics Forum | Tue Jan 24 09:21:34 EST 2017 | emeto

there is an IPC standard for machine accuracy and repeatability. Here it is how it works. You have to place certain number of parts on a specially designed PCB(that allows placing variety of parts on big part of the machine work area). After that you


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