Electronics Forum | Tue Oct 12 15:20:44 EDT 1999 | Jim Schultz
I need your help! We have been doing double sided surface mount for 4 years now. Up until 6 months ago I have not had a tombstoning problem. Since then I have a fairly high incidence rate of tombstones on the 0603 size resistors (no other parts).
Electronics Forum | Tue Oct 12 16:07:29 EDT 1999 | Jeff Sanchez
| | We (Compunetix, Inc.) need to sell a Centech Vapor Phase. What would be a good asking price. | | | | TIA | | | You should be aware that vapour phase is on its way down the hill for environmental reasons. In any case, how can anyone recommend a
Electronics Forum | Fri Oct 08 16:58:01 EDT 1999 | Dave F
| | Hi everyone, I am having a problem with cleaning PCB's with different finishes. I run one type of board through a drag solder and it comes out perfect using a water slouble flux then putting it in an aqueous cleaner. Then I run another board with
Electronics Forum | Mon Oct 04 21:37:31 EDT 1999 | park kyung sam
| Hi everyone, I need some help on the whole process of double sided surface mount. We have been doing surface mount for about 3 months and we're getting ready to take on our first doule sided board. I just need some step by step process regarding so
Electronics Forum | Thu Sep 30 12:02:20 EDT 1999 | Wolfgang Busko
| I am having problems processing immersion gold boards. The achieved solder joints appear acceptable a la IPC-A-610, but the resultant joint does not fully cover the land, i.e. you can still see an outline of gold pad. | What is the best way to achi
Electronics Forum | Thu Sep 23 10:37:06 EDT 1999 | Dave F
| Hiya, | | Could anyone please suggest recommended manufacturers of | IR rework stations for the removal of various SMT comps. | | Cheers | Hey Jack: Let's not get lost. The issue is money versus process control. How much do you have versus h
Electronics Forum | Thu Sep 23 13:17:06 EDT 1999 | Jeff Ferry
| | | Hiya, | | | | | | Could anyone please suggest recommended manufacturers of | | | IR rework stations for the removal of various SMT comps. | | | | | | Cheers | | | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the s
Electronics Forum | Tue Sep 28 16:45:04 EDT 1999 | Doug Philbrick
| | | Hiya, | | | | | | Could anyone please suggest recommended manufacturers of | | | IR rework stations for the removal of various SMT comps. | | | | | | Cheers | | | | | I have 2 customers who went from hot air system to a PDR and they love it
Electronics Forum | Thu Sep 16 18:07:16 EDT 1999 | Earl Moon
| We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a reco
Electronics Forum | Thu Sep 16 18:13:17 EDT 1999 | Earl Moon
| I have a number of hopefully easy questions: | | 1. Are there significant differences in the ease of change-overs and set-up among different equipment manufacturers? For example, are Siemens Siplace machines truly more modular than others? We b
