Electronics Forum | Wed Jan 19 00:42:09 EST 2000 | park kyung sam
In my case, when i solderd the bga in normal reflow(convection hot air). There is a lot of boid. i had tried to reduce void long time. so i reduced just a little. It did't satisfied me but now i cannot looking for the void in soldered bga i
Electronics Forum | Wed Jan 05 15:00:23 EST 2000 | Brian E. Steelglove
Dear Jacob, I have a company that makes a really cheap but great depanelizing machine and one to get rid of the tabs on a routed FR 4 board. I saw them at the assembly expo in Chicago. The cost is under 2,000 dollars and works well. I think it mig
Electronics Forum | Fri Oct 29 02:07:48 EDT 1999 | Eom In Soub
hi. guys Have you out there ever seen the crack by means of humidity after reflow solering. We cannot analyze the cause of the tsop crack. The shape of crack seem to be hitted by sharp stuff. but there is no scar around crack . TSOP shaped long rec
Electronics Forum | Wed Oct 27 10:22:15 EDT 1999 | a.blair
Fuji is usually the cheapest you will find. I think around $750 for them to repair it. the last time I checked they have an exclusive patent on their PCB backplane design so there would not be any real way to bench test it. they also have rights to t
Electronics Forum | Thu Oct 07 06:16:18 EDT 1999 | Ken Fong
Hi, We are using mixed technology in our PCBA. Would like to know whether there is any criteria governing/guiding the use of mixed technology in such aspects as: 1. Some SMDs cannot be used in some kind of PCB materials such as FR1? 2. Some SMDs are
Electronics Forum | Thu Sep 23 04:22:24 EDT 1999 | Chris May
Is any one else out there running a Contact3AV machine in a small batch size (4 offs to 20 offs)environment ? Obviously you cannot expect a high utilisation figure running small batches, setup etc; but has anyone achieved an optimum ? I have run an
Electronics Forum | Wed Sep 22 08:26:53 EDT 1999 | g cronin
i'm sure everyone has run into this at one point or another. I have a thin pcb .025 that is single up that has to be built on a pallet. does anyone have any tricks to the pallet design that will help to hold these boards down during the screen/ass
Electronics Forum | Wed Sep 08 13:09:40 EDT 1999 | Joe Wayt
Hello: We are using a Heller 1500S reflow oven to solder surface mount parts. Just within the last two weeks, the larger I.C.'s are moving while going through the oven. The parts are checked for placement before putting into the oven. When the
Electronics Forum | Tue Aug 31 13:06:34 EDT 1999 | Charles J Tragesser
I think I found the problem. I have the "My SMTnet" page set as an active desktop item in Win98. When I pull up the page in my regular browser, the aforementioned option works. Thanks for your time. | Charles, | | We cannot recreate the error vi
Electronics Forum | Thu Aug 05 16:59:55 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 no good reason. I
.gif)
