Electronics Forum | Mon Feb 13 15:01:37 EST 2006 | Brian W.
We have a joint process with our purchasing department. They get notification from a supplier, which is passed to us. As a CM, we notify the customer and get permission to use it. Then we enter a new part number with a special suffix indicating le
Electronics Forum | Wed Jan 04 13:47:11 EST 2006 | russ
To answer your question it was mentioned that allowing the boards to cool slightly between reflow and wash may help this case to eliminate thermal shock from immediately going into colder water straight out of the oven with no cooling. In looking at
Electronics Forum | Fri Jan 06 09:15:34 EST 2006 | sarar
I would suggest that it would be helpful to perform ion chromatography analysis on some of the boards that have failed your ionograph tests as well as some boards that have passed. This will tell you exactly what ionic species are present on the boa
Electronics Forum | Thu Jan 19 06:25:42 EST 2006 | bwet
There are several life studies (see for example http://www.solder.net/stencilquik/articles.asp) which point to higher reliability of reworked BGAs using solder paste vs flux. The theory on the mechanisms which allow this to happen are as follows: 1
Electronics Forum | Tue Feb 14 04:40:47 EST 2006 | Rob
Pete's advice is spot on - you need to do this. We did roughly the same thing, and the known defect board caught a few out - especially one manufacturer that lowered all of the fault thresholds to pass the previous defect free boards (we didn't tell
Electronics Forum | Thu Mar 30 12:38:14 EST 2006 | Tech
Also why I am at it. In the book CP-6 Series Maintenance Manul ( Fuji Part # MNT-C060-11.3E ) in Chapter 4 page 4-1-11 it says " The clutches should therfore be cleaned regularly, using the grease cleaner (ThreeBond 2706) provided with the machine."
Electronics Forum | Sat Mar 11 11:10:05 EST 2006 | eolparts
Hello All, I sent Grant an e-mail and I wanted to share with you. My name is Jim Schreiber and I am the product mgr at EOL Parts Inc. We have access to over 1000+ OEM and CEM excess/surplus inventories that we use on a regular basis to pass on cost
Electronics Forum | Wed Mar 08 15:12:41 EST 2006 | aj
All, I have a problem on a new device that we have on a new product. It is a LLP (Leadless Leadframe Package) if you search in google "sda16a" you can see one. I am finding it next to impossible to consistently achieve a good visible solder fillet
Electronics Forum | Tue Apr 18 12:34:15 EDT 2006 | Chunks
Outside the box: Can you retro your oven with a belt chain combo? I always order my ovens this way just in case. No pallet or carrier needed then. Can justify retro against the cost of the pallet or carrier. Two part epoxy instead of heat cure?
Electronics Forum | Wed Jun 14 10:12:33 EDT 2006 | Board House
Hi all, The majority of score machines used today have a top cutting wheel and bottom cutting wheel. This way they can score a line in one pass and saves on programming time, Panels are typically scored in one direction first and then the panel is r