Electronics Forum: go- (Page 245 of 785)

cem audit check-list

Electronics Forum | Thu Jun 29 07:06:32 EDT 2006 | davef

"cunning trap"? Did someone say roadtrip and beer? [Sorry Chunks, I go cheap.] A simpler, less expensive, and less painful solution is: * http://www.ipc.org * Knowledge * Technical Resources * IPC Free Documents Available For Download * IPC-1720A

MYData placement variations

Electronics Forum | Thu Jul 13 06:39:08 EDT 2006 | CL

Is it possible that the PCB is moving? First try an autoscan of the fids and then immediately perform a manual trim which will bring the camera over to where it found the fid. If it is on, there is an offset drift in your axis or the PCB is able to m

Mydata TP11 UFP hardware initiation failure

Electronics Forum | Thu Jul 20 07:40:56 EDT 2006 | ev

I have a TP11 UFP without the hydra option and have had difficulty keeping it running. The latest problem is a hardware iniation problem which in the past was a PAIB board failure which I replaced about one year ago almost to the day. Has anyone seen

Imm Silver & Screen Printing

Electronics Forum | Mon Jul 31 14:42:58 EDT 2006 | Chunks

Hi Steve, Yeah outta my control, till NPI tosses it over the wall. Yes, everything was kept the same but we did go to a new stencil house. I'll try an ego busting move and ask if we can order a stencil from were we normally do if/when we respin

Imm Silver & Screen Printing

Electronics Forum | Tue Aug 01 10:29:43 EDT 2006 | slthomas

It's been a while since I've built with 16 mil pitch, but I have to second the recommendation to go to 5 mil stencils. Night and day as far as release characteristics. The increase in aspect ratio opens up the window a lot. (read = covers up a mult

Imm Silver & Screen Printing

Electronics Forum | Tue Aug 01 12:38:13 EDT 2006 | razor9114

I would go with a 5 mil stencil as well, we experienced some similar issues with micro BGA's and the area ratio was suspect as well as the MESH size of the paste. We went to Type IV paste and verified our area ratio and everything ran beautifully. Pa

Imm Silver & Screen Printing

Electronics Forum | Tue Aug 01 18:39:24 EDT 2006 | G.P.

I'm in 100% agreement with the 5 mils foil. In applications where there is less than 20 mil pitch actives and less than 0603 discretes 5 mils does great and increases your operating window by a ton it's less sensitive to release and print accuraccy.

SMD / BGA Rework

Electronics Forum | Mon Aug 14 15:00:20 EDT 2006 | russ

I have used Martin, Metcal and Ersa. I would go with the Metcal. i thnk you get the most bang for your buck withthis unit. Martin service and support can be taxing on the Mind if you are in US. fairly decent unit though. would recommend if you l

GSM RAMTIFFs

Electronics Forum | Tue Aug 01 06:21:37 EDT 2006 | Rob

Hi, anyone in the UK using RAMTIFFs on their GSMs? we're having a clearout and have 2 spare, free to a good home. Also got 4 GSM feeder changeover/test trolleys - free as above. Rather they went to someone who is going to use them, than some one wh

Paste-in-Hole reflow soldering

Electronics Forum | Wed Aug 09 12:22:11 EDT 2006 | Rob

You are going to struggle with that sort of connector - the only pin headers that seem to have widespread sucess are the dual inline ones with bent over j leads that sit on the board. They come with a plastic hat that allows vacuum pick up. However


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