Electronics Forum | Wed Aug 19 19:16:43 EDT 1998 | Steve
How is the aspect ratio of a reliable BGA joint defined? Is it best to have H/W between two limits? What are these?
Electronics Forum | Fri Aug 21 15:03:42 EDT 1998 | Dave F
| How is the aspect ratio of a reliable BGA joint defined? Is it best to have H/W between two limits? What are these? Steve: People on TechNet have spent alot of time talking about BGA pad design. Use the link below. Dave
Electronics Forum | Sat Jul 11 06:56:20 EDT 1998 | Wayne
Bob: Took a quick look at your website, pretty nice. One thought! How come you don't link back to the SMT Forum? Wayne
Electronics Forum | Wed Jun 24 11:59:31 EDT 1998 | Brian Conner
| What is your current solder pot temperature? Whatever that temperature is, | has it been verified/calibrated? | What kind of flux is being used? No-clean, OA, RMA? | How is the flux being applied to the PCB? | Is this problem occuring on ALL nega
Electronics Forum | Tue Apr 14 10:21:11 EDT 1998 | EFData
| Does that part still have a heat sink built into it or is it the plastic package? | Justin Originally, we also thought the heat sink may be causing problems, so we conducted tests on both the plastic package and heat sink versions. Nothing conclusi
Electronics Forum | Thu Apr 09 15:44:36 EDT 1998 | Earl Moon
| Is there a good way to inspect BGA | balls ? Is there an inspection piece | of equiip.? It depends on what you intend inspecting. For dimensional and tolerance measurements, I have used optical comparators. For solder ball voiding, X-Ray is used.
Electronics Forum | Wed Oct 21 15:07:50 EDT 1998 | Jim Gleason
Fyi, I just came across this the other day and you should look GSC, info@gogsc.com. They have been around for ages and do a great job for Lucnet.
Electronics Forum | Mon Mar 30 07:44:12 EST 1998 | Earl Moon
| | | | | We are having some problems with "drawbridging" on 0805 film capacitors. | | | | We have already reduced the pad width from .050" to .040" based on input | | | | from vendor. Defects appear to be random as far as location on the PWB and d
Electronics Forum | Thu Jan 29 14:03:57 EST 1998 | Chrys Shea
Entek or Protecto? I've hear Kester's Protecto is a very good OSP that may be more assembly process-friendly than Entek. Is anyone using this? Do you have any feedback on its solderability or availablity compared to Entek? Any non-commerical input w
Electronics Forum | Mon Dec 22 02:25:45 EST 1997 | Sultan Mahmood
WE have a problem of tomb stoning in our smd assemblies during curing process of the boards in our Infra Red Soldering bath. Would you like to give us solution how to resove this proble? Thankyou Regards
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