Electronics Forum | Tue Feb 02 12:31:26 EST 1999 | John
| I have a product using high temperature solder to connect terminal pins to a PCB. The board is single sided copper, no plaiting. The solder is 95% tin 5 % silver. The flux is low activity rosin. The product is a subassembly. When the product i
Electronics Forum | Fri Jan 29 15:39:04 EST 1999 | Chris Jackson
I have a recent design (1 component side only) that calls for 2 surface mounted antenna's (brass plated) to be mounted on a PCB. The problem arises when the PCB is 18x11.25 and has 15 to 20 PCB's in the pallet (IE weight, fixturing to hold the anten
Electronics Forum | Thu Jan 28 20:00:54 EST 1999 | Dave F
| Okay, | | Another question, if the soldermask in not cured, then it is washed will water ingress (from wash or ambient ) play havoc with capacitance or dielectric of PCB. I mean will my crystal and clock circuits start "Y2K'n" on me. OR will my P
Electronics Forum | Wed Feb 10 12:52:21 EST 1999 | Dick Casagrande
|I'm getting in a little late on this but my 2 cents is: We have been using no-clean flux for a few years now but up till last month were still cleaning (the white residue) our boards (all thru hole). Finally did some investigation and found the flux
Electronics Forum | Mon Jan 25 21:43:04 EST 1999 | Dave F
| hi, | i am working towards developing a no-clean process for a customer at contract manufacturing facility. the assemblies have gold fingers on them. these are masked to prevent from any damage to them during reflow soldering. the earlier proces
Electronics Forum | Fri Jan 15 11:26:24 EST 1999 | Chrys
Hello, We are qualifying new sources of PWB vendors. We've got the first lot of "produciton" boards in and we want to put them through the paces before turing the vendors on. So far, the tests I can think of performing, and that we have the capabi
Electronics Forum | Wed Jan 13 07:37:45 EST 1999 | EFData
We have evaluated using WS-629 and our feelings are that the formula is not very stable. One evaluation showed great results; superior solder joint appearance and good printability. The paste would not roll on another evaluation nor would it release
Electronics Forum | Wed Jan 13 21:46:03 EST 1999 | Dave F
| I am currently using Alpha WS629. I have a Malcom SPS-1 Solder paste mixer. I find that the mixer after running for the recommended mixing time | (10 to 18 Min) ball's the solder in the jar. | | 1) Is there any other Manufacture having the same
Electronics Forum | Mon Jan 04 18:29:06 EST 1999 | Mike Zurn
| | Does anyone have any experience with vibration testing of BGA packages and assemblies? We are starting to design BGA's into some of our products and we have not found very much information on vibrational test results. Any information will be he
Electronics Forum | Fri Dec 25 11:21:18 EST 1998 | Earl Moon
| Merry Christmas | | I would like to wish everybody a Merry Christmas and a happy (Y2K Bug free) New year. | | Mike | | Roger and echo that! Cheers to all. As I know you all are vitally interested, I am temporarily in Boise enjoying an incredi
