Electronics Forum | Thu Jul 01 16:57:14 EDT 1999 | JohnW
| | | | Could somebody tell me what means Leaching, ie: "Leaching of terminal end face exposing the ceramic"? | | | | | | | Roberto: Leaching, according to the SMTnet Library of Terms: | | | | | | Leaching. Dissolution of a metal coating into liqu
Electronics Forum | Tue Jun 29 16:03:57 EDT 1999 | Dave F
snip | John and Dave, | | Again, I don't work with larger chip devices with this issue. The company I now work with developed a strategy, based on considerable research (as others of us did in the past), to do things like placing 0603's on 0402 pad
Electronics Forum | Fri Jun 25 12:01:49 EDT 1999 | Earl Moon
| | Dear John/Earl | | | | Thanks for your clarifications. To me also the problem does not seem to be linked with the PCB. The Pre heater temp. is set at | | 450 degree C. We are using Alpha Aq. cleanable flux. Can you elaborate on the Desired
Electronics Forum | Mon Jun 21 12:57:10 EDT 1999 | Earl Moon
| | I dug through my big box of office crap and found the disk with my technical papers. I posted the one on process control in the SMTNet library. It covers a lot of ground on what causes defects in the wave (too much or too little of something),
Electronics Forum | Mon Jun 21 13:02:59 EDT 1999 | Earl Moon
| | | I dug through my big box of office crap and found the disk with my technical papers. I posted the one on process control in the SMTNet library. It covers a lot of ground on what causes defects in the wave (too much or too little of something)
Electronics Forum | Tue Jun 15 12:03:27 EDT 1999 | Dave F
| Has anyone had issues where bottomside double reflowed smt has fallen off in the wave when using voc-free flux? I have verified the hotter profile was not the issue by using an alcohol based flux with no problems.This voc-free flux is also not caus
Electronics Forum | Tue Jun 08 12:49:41 EDT 1999 | Dave F
| 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 n
Electronics Forum | Tue Jun 08 13:06:53 EDT 1999 | Kevin Hussey
| | 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 fl
Electronics Forum | Tue Jun 08 14:16:49 EDT 1999 | Dave F
| | 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 fl
Electronics Forum | Fri Jun 04 03:03:52 EDT 1999 | Scott B
| I'm encountering a new problem at my new company that I haven't encountered before in my past life - and that's Wave Soldering VIA holes. | | We've been getting a rash of defects that we call in this company, "insufficient solder in VIA hole." The
