Electronics Forum: solder and joint (Page 125 of 388)

BGA Pre and Post Soldered Height Tolerances

Electronics Forum | Fri Oct 01 14:16:15 EDT 1999 | Rick

I know there are a ton of variables that affect the overall height of a BGA after soldering to a PWB but... I'd like to know if anyone has done an analysis of (or if it's documented) as to what the pre and post reflow height dimension as measured fr

Re: WAVE SOLDERING and Gluing 0603 packages

Electronics Forum | Sat Apr 24 08:23:03 EDT 1999 | Bubba

| Surprisingly enough, ever since the addition of an omega wave, we solder those often-troublesome SOT23's just fine and dandy.. anyways, long-term, well be getting a universal GDM which uses positive displacement pumps..currently we're using fuji g

Re: Desoldering of TSOP and TSOJ

Electronics Forum | Fri Jan 08 15:02:38 EST 1999 | Dave F

| HI! I am a package engineer in Korea. I have some reasons | to desolder excessive solder at the lead of TSOP and TSOJ | after removing them from the board. The way with solder wick is too time-consuming and depends on the operator. | Does anyone

Working with Lead free and Pb Capacitors

Electronics Forum | Fri Jan 27 17:23:10 EST 2006 | muse95

Watch the solder profiles allowed for these caps. Most electrolytics cannot withstand high heat. Even RoHS compliant Electrolytics are often rated for peak 245C, 3 secs max, for example. Nowhere close to the 260C 10-20 sec you usually like to see.

ICT Question, Via holes and Probes

Electronics Forum | Fri Apr 27 08:44:08 EDT 2007 | Brett

For those of you who use via holes as test points, and the via holes must be filled at the wave, is it necessary to have a "dome" on every single test point, or is it sufficient to have the via "filled" with solder? The ICT preson here insists that

Cleaning prototype PCB assemblies and waste water

Electronics Forum | Tue Jun 19 12:26:38 EDT 2007 | billr73

We will be hand soldering a small number of PCBs per week (both through hole and SMT) using a water soluble flux. We will be using both standard leaded and lead free solder. The completed assemblies be hand washed in a sink using hot water. Do we

CAD Formats and Solder Point Counts

Electronics Forum | Thu Oct 10 04:12:37 EDT 2013 | alexeis

Hi, We have software tool, called TopoQC, that displays topologically CAD view with failures and calculates solder points by one click. Also, you can calculate DPMO & Six Sigma values on the same screen. You can read about it on our website: http:/

CAD Formats and Solder Point Counts

Electronics Forum | Fri Oct 11 16:17:17 EDT 2013 | scdunlap

In your experience, what is the most popular CAD > package in use today? > > Also, does anyone have > an automated and/or quick way of counting the > solder points on an assembly based on either > gerbers or CAD data? We use GCPrevue to view

Quantity of dross and type of flux

Electronics Forum | Tue Nov 14 04:17:22 EST 2000 | Mohammed Saad

Hi, I need some information about the relation between the type of flux used in wave soldering and the quantity of dross produced. Thank you in advance for your help Mohammed

Solder paste height and metal squeegees

Electronics Forum | Fri Apr 20 16:05:17 EDT 2001 | gcs

We always reduce side to side, EXAMPLE: 12 mil width reduced to .010". Do you guys check viscosity ? Also maybe your guys are appling to much pressure on the sqweegee blades.


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