Electronics Forum | Thu Dec 10 09:09:31 EST 1998 | Earl Moon
| Hi everybody? | I heard that typical FR-4 would not acceptable for BGA application. | What is the main reason? | (thermal property? or CTE?) | Sombody please answer me the requirement of PCB substrate for PCB application. | Thanks. | | Youngho Son
Electronics Forum | Fri Dec 04 19:17:03 EST 1998 | Jason
Jeff, I used conductive epoxy for diebonding and chipcaps on hybrid xtal controlled osc. We were applying via stencil printer, then curing in a KME vertical cure, a real foot print saver. Even under controlled environmental conditions, it was a re
Electronics Forum | Mon Dec 07 09:22:50 EST 1998 | rick
| Does anyone have any information or experience with the use of conductive epoxy in leu of solder. I have a unique application that might lend itself to this technology. I am looking for manufacturers, printing, curing and reliability info. | Any in
Electronics Forum | Tue Sep 15 11:03:41 EDT 1998 | Dave Celestian
| Dave, | Sounds like you have material issues. Been there, done that. Tried 'em all. The best, longest lasting material I've found is called Durostone. It's made by a Roeschling, and most of the big fixture cutting houses now offer it as an option
Electronics Forum | Mon Dec 08 14:40:08 EST 1997 | Rin Or
| First Responses Lost: Please Repost | | Looking for info on process flow for 2 sided SMT with PTH | | on the top side. | | Both sides have large SMT ICs. I don't know what the best approach is; | | Epoxy, Paste in Hole, High temp paste. | | Any in
Electronics Forum | Fri Feb 21 11:33:47 EST 2003 | Jaime
Call your glue manufacturer. It sounds to me that the epoxy is not curing properly. You should also test for shear strenght. How many pounds of pressure does it take to "pop" a cured component after it comes out of the oven? What type of oven do you
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 | Tue Nov 28 22:34:55 EST 2006 | davef
Almost all boards are hydroscopic. In this, the epoxy holding the board together absorbs moisture. Almost all components are hydroscopic. In this, the epoxy encapsulating the component together absorbs moisture. So, as you heat the board / compon
Electronics Forum | Wed Jan 03 21:20:22 EST 2007 | davef
Comments are: * General purpose RTV (RTV-108) releases an acetic acid (vinegar) during cure and corrodes copper, brass and sensitive metals. It is therefore NOT for use in delicate electrical or electronic applications. However, there is an electrica
Electronics Forum | Thu Apr 19 16:54:32 EDT 2007 | flipit
I don't suggest using Pd/Ag or Ag/Pd terminated components unless you are forced to use them. You often see a line of demarcation that suggests a poorly wetted solder joint. I have had bad experiences with Pd/Ag terminated capacitors. Even when so
