2151 solder ball results

Electronics Forum: solder ball (Page 35 of 216)

solder balls - Possible root causes

Electronics Forum | Fri Jul 06 03:23:01 EDT 2001 | kennyhktan

Hi there Steven ! Please allow me to share some of my problem we're facing here with you. Here are a few points that I suggest you should check on your current process:- (1)PCB - Component land partern design ? It is per IPC spec ? - Mask

CERSOT-23 solder on top of package

Electronics Forum | Tue Jul 25 13:40:04 EDT 2017 | davegoad

I have some CERSOT-23 transistor packages with castellated terminals. The 4th lead (drain castellation) is electrically connected to the top of the device by the castellation. The castellation goes up the ceramic body and contacts the metal package

Selective soldering pallets and solder balls

Electronics Forum | Mon Dec 16 16:35:55 EST 2002 | Jim Ferris

Randy, Steve & all, Can you guys point me in the right direction when it come to using selective wave soldering...I am trying to get in-depth information on the Pro's & Con's of having our supplier use this process for our PWA's. (I can see there ar

Selective soldering pallets and solder balls

Electronics Forum | Thu Dec 05 11:04:27 EST 2002 | slthomas

They're IR, bottom side only. Frankly wave solder is not my forte (there are those that would claim nothing is), but I've personally been tasked with developing a process to do reliable, high volume bottom side SMT, so I'm drawing a lot from the tec

Selective soldering pallets and solder balls

Electronics Forum | Tue Dec 03 18:31:45 EST 2002 | slthomas

At the price of Durapol we'd never get the OK to have them made. The Al fixtures are cheap and a quick turn local item. As dense as the pth parts are I also don't think there'd be any room for any holes which I really think is the answer as far a

SMT packages that can solder inverted?

Electronics Forum | Thu Aug 28 16:13:06 EDT 2003 | Dan Gosselin

Thanks everyone for your help. I have since found a good article I am downloading of of the SMTA website. Dan Title : EFFECT OF SURFACE TENSION OF SOLDER ON UNDERSIDE DEVICE SUPPORT DURING REFLOW OF A PCBA Author : Mulugeta Abtew Author Company