Electronics Forum | Wed Jun 22 09:12:57 EDT 2005 | bsudak
Our manufacturing site has been struggling with soldering Alloy 42 TSOPs. Currently, we have to hand solder in one of our applications. Here are the particulars. Component: 54 leads, Sn plated, 400microinches +/-200. Process: Eutectic 63/37 Sn/Pb
Electronics Forum | Tue Jun 28 12:12:17 EDT 2005 | Paul
I'm with DaveF on this one. I think you'll be trying solve this one for a long time. Alloy42 just doesn't like to be soldered. What exactly is the issue? Lack of a toe fillets at on the cropped lead? There is no spec for a toe fillet other than to
Electronics Forum | Thu Oct 27 01:43:41 EDT 2005 | adlsmt
Do you have any advice on preventive maintanance? Universal does not call for much. We have the machine running now. It is incredible for a $150K machine. We have had no maint issues but I want to make sure it stays running the way it is. I have visi
Electronics Forum | Thu Jun 23 05:51:32 EDT 2005 | Paul
Hi Folks, just wondering if anyone else agrees that Rheometric pumps do not work and are more trouble than they're worth. They do not circulate the solder paste properly. The only solder paste that is processed on a FIFO basis is the materia
Electronics Forum | Thu Jun 23 13:50:07 EDT 2005 | Erik
Paul, I'm quite frankly relieved, I thought I was the only one with these thoughts! We have only had our Rheometric pumps since February, but since then our process has been difficult to control with fine pitch applications. And then there's always
Electronics Forum | Thu Jun 23 15:28:48 EDT 2005 | geb
Yeah it says "board model not found", occasionally it will say "Stencil model not found" or something very similar. Do you have the exact same machine? It only shows a small live video image in the bottom of the screen (about 4cm sq.), I cant remembe
Electronics Forum | Thu Jun 23 20:09:03 EDT 2005 | Stefan
Optimizers for pick and place machines are very specific for the type and model of the machine you are using. A chip-shooter will run at optimal speed with the same type of nozzle and minimal table movement. Most X-Y tables have a faster X-axis than
Electronics Forum | Wed Jul 06 14:36:05 EDT 2005 | Bob R.
The only way we can consistently get a toe fillet is to use a paste with an extremely active flux. We allow that paste on certain products, but discourage it's use because it's on the hairy edge of not meeting our lower limit in surface insulation r
Electronics Forum | Tue Jun 28 04:40:14 EDT 2005 | thaqalain
Motherboard:Intel: D845GLLY requiring PC133,128MB I done all 3 possible cases: I-Inserted AZEN RAM PC100,128 MB in Slot#1 with Kingston PC133,128MB in Slot#0,it read 126 MB. II-Inserted PC100 only in Slot#0,it read only 64 MB and Ssystem was exces
Electronics Forum | Wed Jul 06 10:21:23 EDT 2005 | slthomas
XP needs at least 256Mb of RAM, preferably 512. I think 1Gb would be overkill, especially with a 133 memory speed. It sounds like a dual boot configuration...if you don't need W98 on the machine, why don't you just dump it and get a clean install of