Electronics Forum | Mon Nov 25 07:58:27 EST 2002 | Yannick
Hi, I made a board wich I plated with immersion Tin, I tought it should be the same result as we had with tin lead but we ran into a weird problem. WE use a 63/37 no clean paste and on the Board with Immersion Tin the solder just make a ball ON
Electronics Forum | Fri Jan 17 15:36:23 EST 2003 | davef
How do 0.5 mm pads on the board help paste release from the stencil? Paste release from the stencil is a function of: * Paste * Printer operation * Stencil design You have no obligation to made your stencil apertures the same size as the pads on yo
Electronics Forum | Fri Mar 21 02:45:45 EST 2003 | emeto
Hi, there is one very important thing.How many boards came out with exatly the same problem?
Electronics Forum | Tue Feb 25 10:32:09 EST 2003 | davef
I don't know the precise scheme, but it goes something like this ... WHAT TO DO * Use the general work instruction that applies to all boards. It goes into dimension and hole checking processes. It talks to visual instection of solder mask, solder
Electronics Forum | Wed Mar 26 10:53:24 EST 2003 | Phil
Thank you all for your help you have given me some paths to follow. Regards Phil
Electronics Forum | Wed Apr 09 05:55:05 EDT 2003 | Chrissie
We've encountered a little problem with BGA's. There was a process problem in the build of the boards which has ment the BGA are failing open circuit due to the lack of solder paste. Any-one else had this problem? Any suggestions on solutions? We've
Electronics Forum | Mon Apr 28 10:42:20 EDT 2003 | lgroves
Herman, I'm betting you will get a lot of response on this one. Frankly, everybody has their favorite machine. The trick is to consider the types and quantitys of boards you will run. Sometimes, it is better to set up a load for several jobs tha
Electronics Forum | Fri May 07 16:58:26 EDT 2004 | davef
Manage the speed of the board and the speed of the wave to be nearly same at the point where the leads leave the wave.
Electronics Forum | Fri Jun 27 11:09:16 EDT 2003 | P
I heard FlexLink bought PCT. www.flexlink.com
Electronics Forum | Wed Jul 02 12:42:58 EDT 2003 | slthomas
Not sure how else to describe this. We've received some boards (1/2" x 3.5" x .0325" board built on panels of 24) with numerous resistors showing separation of the solder from the metallization at the top of the joint. There are 26 0805's on the bo
