Electronics Forum | Sat Nov 25 18:45:19 EST 2000 | Ashok Dhawan
I am getting black spots / stuff while I run gold finish PCB through reflow soldering process using NC solder paste.The affected spots have intermetalic as black in color. Does not solder very well. I did look at the archieve but could not find info
Electronics Forum | Thu Nov 16 09:45:11 EST 2000 | DL
Where are the experienced operators? I'm sure they would have some good input to what it is you seek. How would this program you wrote know if the operators went to the bathroom during setup? Or took break? Or even waiting on incoming parts from ship
Electronics Forum | Thu Oct 26 12:36:02 EDT 2000 | Sal
Guys! witnessing a problem i've never seen before.Manufacturing a mixed technology with HASL finish, BGA,QFP's,fuses etc..etc. I've profiled the product, but what i'm witnessing is really weird. I've got a 0.020" QFP which is at the edge of the board
Electronics Forum | Wed Oct 25 06:14:14 EDT 2000 | Adam
Guys A question regarding design rules of a WSC.We are currently running a high volume product, and as usual the design layout is as such where half the through hole connectors are perpendicular to the wave, and surprise,surpise the other half are'n
Electronics Forum | Thu Sep 14 19:44:25 EDT 2000 | Brian W.
I cannot give references to papers, etc, but I can tell you from experience that High Impedance circuits and High Power RF circuits are not something to try no-clean on. For an aerospace customer, I had a circuit that any residue left between two pa
Electronics Forum | Wed Sep 13 12:08:02 EDT 2000 | Dave F
Charlie: I'm with Wolfgang ... The prime cause of your cracked solder joint on a surface mount part is mechanical stress. That�s about as specific as you�re gonna get. More information would be helpful. For instance: * Talk about the distribution
Electronics Forum | Thu Aug 31 04:25:03 EDT 2000 | Chris May
Dougie, If you have square, rectangular etc; shaped PCB's maybe you could have routing between circuits. "V" shaped grooves top and bottom. I found this extremely good especially if the assemblies are wave soldered. No gaps for flowing up and over.
Electronics Forum | Thu May 18 03:13:13 EDT 2000 | Earl Moon
Bait, my ass. Something so thinly vailed is what I'm talking about on this forum. However, Janet is a prime example of someone needing help and you folks kindly offered with good advice. How could you not give good advice to someone needing everythin
Electronics Forum | Thu May 18 08:32:02 EDT 2000 | Nancy V
Janet, I like Dave's advice. I would send you first to www.smtmag.com They have articles there that give the basics of SMT. Look for the button that says "Step-By-Step SMT." It will give you a touch of what your in for. Then find a good book. I
Electronics Forum | Wed May 10 08:18:49 EDT 2000 | Nancy V
Life on the forum has just not been the same since the Earl left. Alas, I take my broken heart and bid adieu. On a more serious note. I want to thank everyone on the forum for their help. While I did not ask a ton of questions, I found the archiv