Electronics Forum: checking (Page 441 of 631)

You Gotta Be Tired Of Loosin' All Those Parts

Electronics Forum | Mon Aug 23 21:10:47 EDT 1999 | Dave F

| | | | | | | | IF anyone is placing 0402's with the Mydata tp-18 I would like to here how reliable it is(with these little buggers). | | | | | | | | | Thanks | | | | | | MD Cox | | | | | I've been placing them with a TP9-2U. You need t

Re: 20 mil qfp bridging

Electronics Forum | Thu Aug 12 20:31:57 EDT 1999 | Kelly Morris

| | Hello | | | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | | 100 durometer blade. Getting "tails" o

Re: 20 mil qfp bridging

Electronics Forum | Thu Aug 12 20:48:05 EDT 1999 | JAX

| | | Hello | | | | | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | | | 100 durometer blade. Getting "

Re: 20 mil qfp bridging

Electronics Forum | Thu Aug 12 21:08:39 EDT 1999 | ScottM

| | | | Hello | | | | | | | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | | | | 100 durometer blade. G

Re: SMD Inspection and Touch-up

Electronics Forum | Fri Jul 23 14:17:55 EDT 1999 | Steve Schrader

| | There is a practise within the industry of an Inspector inspecting a board, and that same Inspector performing touch-up. My opinion is that the Inspection and Touch-up operations should be separate functions whereby the Inspector is not performin

Re: check feeder cpt tracking on SMT lines

Electronics Forum | Fri Jul 16 11:14:42 EDT 1999 | M Cox

| Hello, | i'm looking for informations about companies which are using system to verify the loadind of a SMT machine by using barcode (on the slot on the machine & on the reel). | I'm in charge of the installation of this kind of system. | I expect

Re: check feeder cpt tracking on SMT lines

Electronics Forum | Fri Jul 16 17:49:06 EDT 1999 | JohnW

| | Hello, | | i'm looking for informations about companies which are using system to verify the loadind of a SMT machine by using barcode (on the slot on the machine & on the reel). | | I'm in charge of the installation of this kind of system. | |

Re: problem in micro-BGA assembly

Electronics Forum | Thu Jun 24 15:58:46 EDT 1999 | Adam Pratt

| | 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

Re: Criterion of PCBA bending degree

Electronics Forum | Fri Jun 11 03:39:26 EDT 1999 | Gyver

| | | | Hello all! | | | | Recently we got a problem about the Funtional test. Some boards passed tests by using the auto-fixture(vacuum), but failed by using manual test fixture(need to plug CPU, DIMM etc.). The error symptom is no picture. We doubt

Wave Solder Problems - VIA HOLES

Electronics Forum | Thu Jun 03 20:09:56 EDT 1999 | C.K.

I'm encountering a new problem at my new company that I haven't encountered before in my past life - and that's Wave Soldering VIA holes. We've been getting a rash of defects that we call in this company, "insufficient solder in VIA hole." These def


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