Electronics Forum | Thu Jun 24 10:11:33 EDT 1999 | Dave F
| Dear guys, | | I have some problem on assembling micro-BGA with solder paste (63/37). The micro-BGA we assmeble is 0.75mm pitch and with 45 pin (solder bump is 96.5/3.5Ag). The stencil is a laser-cut stencil with 5 mil thickness. We are now usin
Electronics Forum | Thu Jun 24 16:19:46 EDT 1999 | Kennyv
| | Dear guys, | | | | I have some problem on assembling micro-BGA with solder paste (63/37). The micro-BGA we assmeble is 0.75mm pitch and with 45 pin (solder bump is 96.5/3.5Ag). The stencil is a laser-cut stencil with 5 mil thickness. We are no
Electronics Forum | Thu Jun 24 16:23:18 EDT 1999 | Kennyv
| Dear guys, | | I have some problem on assembling micro-BGA with solder paste (63/37). The micro-BGA we assmeble is 0.75mm pitch and with 45 pin (solder bump is 96.5/3.5Ag). The stencil is a laser-cut stencil with 5 mil thickness. We are now usin
Electronics Forum | Wed Jun 23 11:02:09 EDT 1999 | John Thorup
| | We are reflowing boards that have glop top components | mounted on them. Do glop tops have the same moisture | sensitivity as fine pitch? Should we be baking the boards | prior to reflow? | |If your glob tops are PBGAs, they are likely very mo
Electronics Forum | Tue Jun 22 17:14:41 EDT 1999 | Dennis Fall
I am looking to apply 10-15�m of a conductive material that will withstand 280�C. Our product consists of an alumina substrate sputtered with NiCr (2000�) and Copper (2000�) and 15-60 �m of electroplated copper (all metals patterned on the substrae)
Electronics Forum | Wed Jun 23 10:21:25 EDT 1999 | Chrys Shea
| I am looking to apply 10-15�m of a conductive material that will withstand 280�C. Our product consists of an alumina substrate sputtered with NiCr (2000�) and Copper (2000�) and 15-60 �m of electroplated copper (all metals patterned on the substra
Electronics Forum | Tue Jun 22 17:37:51 EDT 1999 | Dave F
| I was wondering if anybody could give an estimated cost of equipment maintenance per year for a complete SMT line for | a medium volume facility? | John: Budgeting for maintenance from two perspectives: 1 We budget 1 percent of the capital cos
Electronics Forum | Wed Jun 23 06:26:07 EDT 1999 | Graham Naisbitt
| You may want to rethink using an inline for both OA and No-Clean applications. Since the majority of your applications are OA, it would not make a lot of economic sense to run saponifier in your inline for a minority application. My suggestion is
Electronics Forum | Mon Jun 21 16:11:41 EDT 1999 | John Thorup
| | I am finding that some of our IC's are coming from the supplier with the humidity gauge in the bag reading 10-20%. Has anybody done any tests to determine what humidty level in a package will cause problems during reflow? | Usually a proper m
Electronics Forum | Mon Jun 21 10:53:02 EDT 1999 | Clifford Peaslee
Wayne, I'll look into it. Sounds like something is not setup quite right on our end. You should not have any errors in the email section. Thanks for the error notice, I'll get back to you in a few. Cliff | Cliff: | | It might be only me, but it
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