Electronics Forum: smt (Page 731 of 925)

Re: Standard pad sizes for reflow and wave

Electronics Forum | Sun Sep 05 03:52:11 EDT 1999 | Brian

| We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these sizes

Re: SMT/TH machine programming

Electronics Forum | Thu Sep 02 12:27:54 EDT 1999 | stefano bolleri

You use MCS computers to transmit programs/data to machines --> MCSs are getting old, so you would like to use F4G or FujiCam just because you could use a standard 486/Pentium --> But you still like your current programming SW (obviously not MCS/F4G/

Re: SPOT (Solder Paste On Thru-Hole)

Electronics Forum | Mon Aug 30 03:56:35 EDT 1999 | Wolfgang Busko

| Planning to evaluate the above process... | Can anyone can give me some tips/infos on the above.... | e.g. stencil aperture design, aperture ratio, common problems and solutions they encountered on the above process, is the profile different from a

Re: SPOT (Solder Paste On Thru-Hole)

Electronics Forum | Mon Aug 30 04:08:51 EDT 1999 | Earl Moon

| | Planning to evaluate the above process... | | Can anyone can give me some tips/infos on the above.... | | e.g. stencil aperture design, aperture ratio, common problems and solutions they encountered on the above process, is the profile different

Re: Tooling pins

Electronics Forum | Tue Aug 24 15:06:06 EDT 1999 | John Thorup

| | I am looking for a source of tooling pins (various diameters) which can be easily attached (ie. taped) to pieces of FR-4 stock to allow for quick and cheap fixtures to run in my smt machines. I've seen these in the past where the pins are attach

Re: Electroless Tin Plating

Electronics Forum | Sat Aug 21 12:13:17 EDT 1999 | Brian

| I am being asked, by my vendor and Purchasing people about converting from Tin/lead pads on P.C.B's to Electroless Tin Plating. | Can any one tell me what I have to change in my SMT | process (paste, reflow, etc) If any? | I ran one P.C.Boar

Re: EKRA

Electronics Forum | Wed Aug 18 08:41:45 EDT 1999 | Scott Cook

| Does anyone have any experience with EKRA screenprinters? I am looking for a semiauto screenprinter and I came across this brand. My local rep says that they are fairly new in the US, so, it is hard to get opinions on the machine. I am looking a

Re: EKRA

Electronics Forum | Thu Aug 19 15:10:14 EDT 1999 | Dan

| Does anyone have any experience with EKRA screenprinters? I am looking for a semiauto screenprinter and I came across this brand. My local rep says that they are fairly new in the US, so, it is hard to get opinions on the machine. I am looking a

Re: EKRA

Electronics Forum | Fri Aug 20 11:06:54 EDT 1999 | John

| | Does anyone have any experience with EKRA screenprinters? I am looking for a semiauto screenprinter and I came across this brand. My local rep says that they are fairly new in the US, so, it is hard to get opinions on the machine. I am looking

Re: Double sided reflow in one pass?

Electronics Forum | Wed Aug 18 08:38:46 EDT 1999 | Jason Gregory

| Is there process by which one can do a double sided reflow (SMT on both sides) in one pass through the oven? | Paul, Here's a way it might be done. Screen your bottom side with paste (if only passives, 0603-1206 & sot 23's), dispense glue for sam


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