Full Site - : johnw (Page 8 of 20)

Re: PCB fab supplier supplier/evaluation - connection problems

Electronics Forum | Sat Aug 07 22:16:16 EDT 1999 | Earl Moon

| | | Mike, | | | | | | Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for

Re: Earl Moon Arrives

Electronics Forum | Wed Jul 21 13:22:33 EDT 1999 | JohnW

| Oh dear forum participants, | | I left a good job (finished contract under tyrannical rule with style and grace?) in the city of Spokane. Am now in Wisconsin doing DFM of all things. Yeah, I snagged that job on our forum and can't wait. | | This

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: VOC free flux wave solder fixtures

Electronics Forum | Tue Jul 06 14:23:27 EDT 1999 | Earl Moon

| | | I've heard that use of VOC free flux with wavesolder fixtures can be challenging due to entrapment of water in the fixture. | | | | | | Is anyone out there successfully running VOC free with wave fixtures & did you experience problems? If so,

Re: No clean solder paste

Electronics Forum | Tue Jul 06 10:12:44 EDT 1999 | John Thorup

| | Is the no clean solder paste as good? We are wondering if we can elliminate the wash when we change from through hole to surface mount. | | | John, | | No clean is as good as your process, and the paste you are using. Everything I do is no cle

Re: Surface Mount assemblies IPC Standards

Electronics Forum | Wed Jun 30 11:09:24 EDT 1999 | John Thorup

| | | Could somebody tell me what means Leaching, ie: "Leaching of terminal end face exposing the ceramic"? | | | | | Roberto: Leaching, according to the SMTnet Library of Terms: | | | | Leaching. Dissolution of a metal coating into liquid solder.

Re: Surface Mount assemblies IPC Standards

Electronics Forum | Thu Jul 01 16:43:52 EDT 1999 | Dave F

| | | Could somebody tell me what means Leaching, ie: "Leaching of terminal end face exposing the ceramic"? | | | | | Roberto: Leaching, according to the SMTnet Library of Terms: | | | | Leaching. Dissolution of a metal coating into liquid solder.

Off Pad Printing

Electronics Forum | Mon Jun 28 15:50:22 EDT 1999 | JohnW

Hey there gang, how's it going ? Anyway's here's my probelm, got a new product to build double sided reflow, lot's of so20's and PLcc's 1206's, 0805's the usual stuff. Probelm is all the pad spacing of the 1206's are too big, my component's are only

Re: Off Pad Printing

Electronics Forum | Mon Jun 28 16:18:44 EDT 1999 | Earl Moon

| Hey there gang, how's it going ? | | Anyway's here's my probelm, got a new product to build double sided reflow, lot's of so20's and PLcc's 1206's, 0805's the usual stuff. Probelm is all the pad spacing of the 1206's are too big, my component's ar

Re: Off Pad Printing

Electronics Forum | Mon Jun 28 17:03:59 EDT 1999 | M Cox

| Hey there gang, how's it going ? | | Anyway's here's my probelm, got a new product to build double sided reflow, lot's of so20's and PLcc's 1206's, 0805's the usual stuff. Probelm is all the pad spacing of the 1206's are too big, my component's ar


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