Electronics Forum | Sat Mar 20 08:37:06 EST 2004 | Primus
The BioAct SC-10 wipes work great, but I've noticed some contamination in our solder joints after I began using them on the stencils. After cleaning the paste off the stencil with the wipes, I started spraying the stencil down with isoproponal and bl
Electronics Forum | Sat Apr 03 16:39:15 EST 2004 | stefwitt
We had a similar system on the Siemens machines, quite some time ago. However, it was not a laser light but a LED and a fiber cable. Actually the center fiber or receiver was surrounded by a bundle of small fibers for the LED light source. You may al
Electronics Forum | Mon Apr 12 22:22:01 EDT 2004 | davef
Large voids are common in via in pad [seach the fine SMTnet Archives for earlier laments], especially in blind via. Observations on your via out gassing theory: * If the copper plating on your via is GT 1 thou, there will be no outgassing from the
Electronics Forum | Tue Apr 13 13:18:50 EDT 2004 | arcandspark
David F. thanks for information about the copper plating issues, I will check out the Indium site as you suggest. You are right about Thermount being Unreworkable, but T.I. makes us do it due to the cost of these RF proto types, $250 each bard board.
Electronics Forum | Thu Apr 29 11:07:03 EDT 2004 | arcandspark
You are right about the very poor support for smaller customers. I had told them we were looking for another paste and now they have sent the reginal manager and the US sales manager has come by to see what they can do for us. All they keep saying is
Electronics Forum | Thu Apr 22 00:14:08 EDT 2004 | snehal acharya
we are in Process controls field we have set up our own SMT line , we have MYDATA TP9-2U Pick & Place M/C & reflow oven & manual printer. since now our product demand is increasing so for enhancement of the quality & for speedy production i wanted to
Electronics Forum | Fri Apr 30 10:56:27 EDT 2004 | Bryan She
We tested J6 open on .5mm pitch CSP(In fact,only resistance much lower than normal).J6 is one of the corner ball of the CSP.Defect rate is about 3%. Stencil:4 mil thickness,10 mil square aperture, solder mask openning:10 mil diameter circle. Board fi
Electronics Forum | Fri Jun 04 17:41:17 EDT 2004 | ricardof
Hi to all, I have one question that I hope to receive comments - Does anyone know or have any experience for the maximum boards you can run on a SMT line, this is quite general, but let's consider a board 8" x 8", about 400 components. Regardless of
Electronics Forum | Thu Jun 10 14:55:43 EDT 2004 | russ
It really depends on how you depanel these, If you are using a machine you can probably get away with the 1mm, If not, the 5mm is there to help reduce the cahnce of fracturing the component. Some interesting notes about having a defined keepout is
Electronics Forum | Fri Jul 16 09:03:40 EDT 2004 | russ
A couple of thoughts, 1. buy larger quantity reels and load more trays of the same P/N if your problem is replenishing the machine. 2. If you're talking about changeover I would suggest that the feeders be set up in the kitting process and deliverd
