Electronics Forum | Wed Sep 01 13:42:08 EDT 1999 | Dave F
| I just recently entered the PCB industry and need some input from the Pros. I am looking for all-inclusive reference books...Are there any that you'd HIGHLY recommend? Thanks... | Rookie: Welcome. SMTnet sells a colection of books. (Gotta get
Electronics Forum | Sat Aug 28 09:11:38 EDT 1999 | Mike McMonagle
| Recently, our solder dross reclaimer refused to take our | used solder paste tubes. He said the small percent of paste | remaining in the tube is now considered hazardous waste. I'm interested in advice on how others are disposing of this "hazardou
Electronics Forum | Tue Aug 24 15:15:43 EDT 1999 | John Thorup
| Could use a little help here. Can anyone clarify to me the cause and fix of chip caps/resistors tombstoning following reflow? | | Any help would be appreciated. Thanks. | Most common reason is uneven heating where one side of the component ach
Electronics Forum | Wed Aug 25 21:51:13 EDT 1999 | Jason Tomlinson
| Does anyone have any information on stencil aperture/pad ratios for noclean solder paste. In the past I have experienced severe solder ball problems when using the same size apertures from aqueous products as I do with the No-clean products. Cons
Electronics Forum | Wed Aug 25 19:31:22 EDT 1999 | Dave F
| JUST WANDERING IF ANYONE IS PRINTING ADHESIVE ON THE BOTTOM SIDE OF BOARD WITH THROUGH HOLE COMPONENTS ALREADY PLACED. I'VE BEEN TOLD IT IS POSSIBLE BUT WANT TO LOOK INTO THIS PROCESS IN DEPTH. | Chad: You don't need to YELL!!! Anyhow, yes we ha
Electronics Forum | Fri Aug 20 10:18:32 EDT 1999 | Dennis Fall
I have a layer of electroplated solder (10/90) that appeares to have some sort of contaminent on it. Water will not wet to the layer in some areas. I have tried using 10% HCl in DI as a cleaner as well as 7.5% Fluoboric acid in DI. Neither has tou
Electronics Forum | Wed Aug 18 16:26:21 EDT 1999 | Tony
Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. This is what I did. Created a removal profile, I had a board
Electronics Forum | Wed Aug 18 15:56:20 EDT 1999 | david dougherty
Hadco offers a technology of building in a "buried" capacitance layer (& other embedded passives) in organic PWBs (FR4 for example). see http://www.hadco.com/prod03.htm and a design manual is posted here: http://www.hadco.com/pdfs/bcguide.pdf I am c
Electronics Forum | Tue Aug 17 10:32:19 EDT 1999 | Boca
| | | | Ladies and Gentlemen, | | | | | | | | As a newly appointed DFM/CE "guru" here, one of my responsibilities has become repair (of course). As I have some knowledge of BGA repair/rework using semi-automated equipment, it naturally follows I wou
Electronics Forum | Tue Aug 17 10:35:52 EDT 1999 | Boca
| | | | | Ladies and Gentlemen, | | | | | | | | | | As a newly appointed DFM/CE "guru" here, one of my responsibilities has become repair (of course). As I have some knowledge of BGA repair/rework using semi-automated equipment, it naturally follows
