Electronics Forum | Tue Jun 08 08:40:37 EDT 1999 | Wister
Hi,my master How to iron out such soldering bridge with below conditions: 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB 3.using spraying fluxer and no-clean fl
Electronics Forum | Tue Jun 08 08:38:15 EDT 1999 | Wister
Hi,my master How to iron out such soldering bridge with below conditions: 1.The component(Harness)lead pitch is 2.0mm,the lead length is 3.2mm. 2.PCB width is 1.6mm.Pad size is 1.65mm.Its a single copper PCB 3.using spraying fluxer and no-clean fl
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
Electronics Forum | Mon Apr 07 12:21:02 EDT 2003 | davef
Russ is correct. A 5 thou thick stencil should give good release. Here's how you run through it: * You want at least 5 solder particles across the smallest aperture. So in your case, 8 thou wide, which equals to 0.20mm gives us 0.20/5=40 microns.
Electronics Forum | Mon Oct 06 12:37:18 EDT 2003 | ramanandkini
It was a nice discussion. What I did here was a thermal shock test 1 hour@ +90 deg.c and immediately 1 hour @ -40 deg.c. The second test I did was a high humudity test for a week. After each test, I carried out a peel test with scotch tape. Those bo
Electronics Forum | Wed Apr 21 00:14:10 EDT 2004 | ramanandkini
We wish to use rectangular 4 segment solar panels in our quartz watches & charge the battery. The size of the soalr panel is 18.20mm X 7 mm and the thickness is 1.15mm. The other popular application of this type solar panels is in calculators. These
Electronics Forum | Tue Jan 09 12:51:14 EST 2007 | aj
All, We have ran a few revisions of a New Product which is a tracking device using satellite navigation. The protos went well but now they have added a shielding can. We place 2 of these to cover the Frontend of the PCB. The test guys are having d
Electronics Forum | Fri Apr 27 13:04:35 EDT 2007 | rmitchell
Hi, I am having some problems with my Fuji CP6 placement repeatability. The placement drifts during the build about .06-.10 mm on parts. It has happened on several different builds this week. It is enough to cause some defects after reflow on smal
Electronics Forum | Thu Jan 20 23:59:30 EST 2011 | jeffr
These machines have three heads... Head 1 (jaws 0.7mm x 4mm)0603 up to small tantalum. Head 2 (jaws 3.0mm x 20mm)small tant up to PLCC44 or SOP28. Head 3 No jaws, uses just Vision. Can do Large tantalum up to QFP208, however can only take a single no
Electronics Forum | Fri Jan 31 11:45:52 EST 2014 | emeto
Hi, to get better image you will probably need higher voltage(depending on how close you want to look). The closer you get the higher the voltage should be. Here are some tips for machine calibration: 1. Make sure your board is on focus. I don't kn
