Electronics Forum | Mon Jun 21 11:14:25 EDT 2004 | exmaintenanceleader
Dear Kanwaljit Singh, my opinion is following: 1)solderpaste type is ok - usual (alpha-metals has this problem inside the paste paste- holder problem) - what do the operator when production change -clean well the stencil holes!! no visible rest on
Electronics Forum | Tue Jul 01 17:38:24 EDT 2003 | jartman
I've faced this several times in the past, and the only real solution is to wirebond before SMT assembly. Everything leaves a residue, and trying to clean a residue off later is basically hopeless. This may require some trickery in your SMT process
Electronics Forum | Wed Sep 30 13:54:00 EDT 1998 | Chrys
All y'all | | BACKGROUND. How many times do you see folks come to work all painted-up and then by the time first break comes, the lipstick, eye liner, and who knows what else are gone and they�re heading for the facilities to "freshen-up." I w
Electronics Forum | Fri Oct 02 16:52:38 EDT 1998 | Dave F
All y'all | | | | | BACKGROUND. How many times do you see folks come to work all painted-up and then by the time first break comes, the lipstick, eye liner, and who knows what else are gone and they�re heading for the facilities to "freshen-up."
Electronics Forum | Sun Apr 18 01:58:23 EDT 1999 | Steve Gregory
Just to further explain myself a bit, and why I hate being bombarded by advertisements, is because I think others (sales and marketing people) are trying to manipulate me. Why do I think that? Say if you have 5 pick and place salesmen, 1 from Fuj
Electronics Forum | Wed May 17 11:19:44 EDT 2000 | John Thorup
Hi Dave It sounds like you do pretty much what we do. A couple of points: If your machine allows, open, fill and seal the dross container inside the machine. Otherwise, the auxillary exhaust as you describe is a must. Be gentle in your movements. Don
Electronics Forum | Mon Apr 19 13:05:31 EDT 1999 | Bob
Steve, Like you, I am sick, sick, sick of marketing. I can't go on the Internet, to a ball game or my local 7-11 without being bombarded with marketing. 7-11? Would you belive I went there to buy a Sunday paper yesterday and now they have a 27" mo
Electronics Forum | Fri Jul 06 03:23:01 EDT 2001 | kennyhktan
Hi there Steven ! Please allow me to share some of my problem we're facing here with you. Here are a few points that I suggest you should check on your current process:- (1)PCB - Component land partern design ? It is per IPC spec ? - Mask
Electronics Forum | Wed Apr 21 19:09:10 EDT 1999 | Earl Moon
| | Does anyone have any experience with soldering 50mil pitch BGA's that have a via in the pad, the size is .012 The via will be masked off on the bottom side of the board. Need to know what precautions or problems if any I might encounter. The proc
Electronics Forum | Mon Dec 30 23:37:47 EST 2019 | agoesfirmanto
Hello All, I am a SMT Engineer from Indonesia, I am facing the problem of soldering balls in only one IC location, in other areas there are none. solder ball defect almost 30%. I have done several actions but failed to reduce the solder ball. 1.
