Electronics Forum: forum (Page 6621 of 7890)

SM Equipment Opinions

Electronics Forum | Thu Apr 16 17:16:43 EDT 1998 | Richard

Hello, Our company has narrowed down the selection of SM equipment for a low volume production environment. I am soliciting opinions on manufacturers that we are considering. I would appreciate both positive and negative comments. Please resond to me

ALTERNATIVE SURFACE FINISHES SEMINAR

Electronics Forum | Thu Apr 16 14:09:04 EDT 1998 | Lou Madge

Dear Collegue, A seminar tittled "Things that you should know before selecting an alternative surface finish" will be offered on Friday, April 24 (during the week of the Nepcon East show) in Philadelphia. Topic that will be discussed include: Evalua

ALTERNATIVE SURFACE FINISHES SEMINAR

Electronics Forum | Thu Apr 16 14:07:49 EDT 1998 | Lou Madge

Dear Collegue, A seminar tittled "Things that you should know before selecting an alternative surface finish" will be offered on Friday, April 24 (during the week of the Nepcon East show) in Philadelphia. Topic that will be discussed include: Evalua

Re: Soldering die to heatsinks

Electronics Forum | Fri Apr 17 14:08:44 EDT 1998 | Earl Moon

| Currently I am in the buisness of soldering bare die to the top surface of a copper heat sink. Is any one else | have some exprience in this process that can help. We heat a copper slug through a contolled atmosphere, place a preform then a bare

Re: Stepmotor and sprocket for advancing Carrier Tape

Electronics Forum | Fri Apr 17 08:51:26 EDT 1998 | Stefan Witte

| We are looking for some basic mechanical parts to | advance parts in the Tape & Reel Carrier Tape using | a stepmotor. The Carrier Tape we use is as per the | EIA Standards and I imagine there are dozens of | companies that make a sprocket gear t

Re: Ultrasonic stencil cleaner

Electronics Forum | Tue Apr 14 10:00:47 EDT 1998 | Chrys

| Could someone point me in the direction of or have any info on a basic no frills Ultrasonic cleaner capable of cleaning 20"x20" stencils? | Thanks, | Jack LaRue | jlarue@mail.nortechsys.com Have you looked into the used equipment market? If you're

Altera PQFP240 Solderability

Electronics Forum | Mon Apr 13 17:03:40 EDT 1998 | EFData

We are having some difficulty soldering a 240 pin Altera device. We use Alpha WS-609, a very generic profile for that solder paste, and a 6 mil stencil with laser cut apertures (1:1 ratio). This is a 20 mil pitch device (aperture size is 10 mils X 75

Re: Lost Components

Electronics Forum | Fri Apr 24 17:14:27 EDT 1998 | Glenn Eubinag

Sounds like your running older equipment earlier than the latest C (oops "Q") series machines. If you are, the older Quad machines only vacuum verify at pick, not during transit to the placement location. Make sure that your vacuum setting is correc

Re: Lost Components

Electronics Forum | Fri Apr 24 17:13:25 EDT 1998 | Glenn Eubinag

Sounds like your running older equipment earlier than the latest C series machines. If you are, the older Quad machines only vacuum verify at pick, not during transit to the placement location. Make sure that your vacuum setting is correct. Nozzle

Re: Lost Components

Electronics Forum | Wed Apr 15 23:30:27 EDT 1998 | Scott McKee

| Wondering if anyone has information on percentage of components that we | can expect to "lose" during our SMT process. We are new to SMT, using | QUAD machines and feel we are losing to many parts during our process. | We are spending a lot of tou


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