Electronics Forum: printing (Page 455 of 481)

Re: Alternate surface finishes

Electronics Forum | Fri Jun 18 13:48:37 EDT 1999 | Earl Moon

| We currently use HASL on all of our boards and I would like to move to something else. I have sampled some boards with Entek OSP and I loved it, the problem is we have plated mounting holes on just about every board we make. Does anyone have info

Re: HASL - again?

Electronics Forum | Fri Jun 18 14:06:15 EDT 1999 | John Thorup

| | Now don't everyone jump on this at once, but it seems time for me to send out copies of my not even close to being dated copy of an article about HASL. Though it was published in 1992, in Printed Circuit Fabrication Magazine, and it got rave revi

Re: Criterion of PCBA bending degree

Electronics Forum | Fri Jun 11 04:38:05 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 d

Re: Criterion of PCBA bending degree

Electronics Forum | Mon Jun 14 09:16:58 EDT 1999 | Adam Pratt

| | | | | 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 d

Re: Criterion of PCBA bending degree

Electronics Forum | Mon Jun 14 14:30:42 EDT 1999 | Deon Nungaray

| | | | | 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 d

Things I Like Without Endorsing

Electronics Forum | Wed Jun 02 07:23:04 EDT 1999 | Earl Moon

To you all for comment and summary, The following things I like without endorsing (PCB/PCBA stuff - outside the great women in my life [many] and without [mostly]): 1) A good set of design rules 2) A good set of design rules meeting producibility r

Re: Cleaning Stencils

Electronics Forum | Tue May 25 12:05:53 EDT 1999 | Deon Nungaray

| Just a note about cleaning stencils with a mixture of alcohol and water, especially if you're using no clean paste, it's really not recommended. | | Don't take my word for it, you can check with Alpha or most any other solderpaste vendor. What wil

Re: QFP solder paste volume

Electronics Forum | Sun May 23 15:12:59 EDT 1999 | JohnW

| We are running a number of boards with 8-10 25 mil PQFPs on board. Our process is mature with at least 3 years experiance and statistically few opens on the QFPs. Our beloved purchasing department has chased the almighty $ and changed FAB vendor

Re: uBGA's

Electronics Forum | Fri May 14 17:06:18 EDT 1999 | Ryan Jennens

| | Hi Guys, | | | | I am going to be graced with the good luck of processing microBGA's in the near future. A bit of a step forward from printing 20-mil pitch and wave soldering 0805's, wouldn't you say? | | | | So, any of you folks who have alre

Re: uBGA's

Electronics Forum | Fri May 14 17:06:29 EDT 1999 | Ryan Jennens

| | Hi Guys, | | | | I am going to be graced with the good luck of processing microBGA's in the near future. A bit of a step forward from printing 20-mil pitch and wave soldering 0805's, wouldn't you say? | | | | So, any of you folks who have alre


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