Electronics Forum | Fri Feb 18 12:57:14 EST 2011 | hegemon
EIS has them P/N 2515-N LEAD-CHECK SWABS, 8 SWABS, 10BX/CS Manufactured By: ITW TECH SPRAY USD$ 29.53 Per 1 BX I have no affiliation with EIS `hege
Electronics Forum | Thu Feb 17 12:01:16 EST 2011 | qcman012856
Having issues with soldering bottom termination components such as PQFN's. Want to begin x-ray inspection to verify wetting. Wondering about soldering acceptablility criteria?
Electronics Forum | Thu Feb 17 14:00:30 EST 2011 | aribeiju
We have a problems with soldering in the PCB in the Solder Wave process. Our pcbs are failures in the solder (voids) in the throughole components. The main problems is in varistor components. what are the soluctions to problems? tks
Electronics Forum | Thu Feb 17 18:13:31 EST 2011 | SheanDalton
Humidity, Juliano? Try drying the boards pre solder; oven or dry storage cabinet. If this works, Eureka has good desiccant dry storage cabinets, http://www.atekllc.com. Shean Dalton www.fhpreps.com
Electronics Forum | Sat Feb 19 10:07:51 EST 2011 | kahrpr
What kind of voids? There are voids from out gassing (moisture) and voids from contamination and or poor solder ability ? If it is on one component I would look at the part. Also if it a big Varistor make sure the board is preheated properly.
Electronics Forum | Wed Mar 02 08:25:34 EST 2011 | rway
Look at your fluxer as well (spray or foam?). You may not be getting ample flux over certain areas of the board. This can cause voids.
Electronics Forum | Wed Mar 02 09:13:37 EST 2011 | aribeiju
I guess the problems are about humidity. How much time before production we need to store in Dry Unit? We have the SD532-31 SUPER DRY gabinet and we will use to store the PCBs. Thank you for your answer.
Electronics Forum | Mon Feb 21 00:35:42 EST 2011 | dman97
The Fuji CP6 and QP242 should be more than capable of placing 0402(cp6) and bga components (QP242). You must be having some programming difficulties.
Electronics Forum | Thu Mar 10 06:51:26 EST 2011 | ravo
no my dear, CP6 vision not able to verify but it can pic up it, and qp242 will be extremely slow
Electronics Forum | Thu Mar 10 06:57:02 EST 2011 | ravo
yea SR.TEC, am suffring right now from trying to assemble BGA 676 pins with my QP242
.gif)
