Electronics Forum | Tue Jul 01 12:21:16 EDT 2008 | short_timer
Let�s say I want to increase the shear strength of a solder joint. Does a lot of solder around a joint create more strength? Why not just absolutely bury the component lead in solder. My initial thought is that it doesn�t increase strength, but I don
Electronics Forum | Thu Feb 15 07:25:05 EST 2001 | Nick
0.5um(Ni~6.5um) after reflow(data taken in 48hrs).But after performing temperature cycle test ,the former aging rate(from the shear strength ) seems faster than the latter.Why!?Someone call this the 'precipitation hardness',but what actually is it! A
Electronics Forum | Thu Aug 24 16:54:33 EDT 2000 | Dr. Ning-Cheng Lee
52In/48Sn solder has a melting point 118C, and can be reflow processed at temperature down to around 165-170C. The material is very soft, very low in shear strength. It is relatively ductile, can be stretched to about 2-3X of Sn63 in elongation. Amon
Electronics Forum | Thu Oct 13 15:34:55 EDT 2005 | Amol
Hi, We are in the process of transitioning to LF production. What are some of board materials being successfully used in production? Also, what surface finishes show promice of good results with SAC 305 solder? We are currently testing multiple boar
Electronics Forum | Fri Oct 01 16:17:10 EDT 1999 | Dave F
| I am currently in the middle of a company wide war and I'm looking for data (AMMO). Here are the problems: | | 1) I am looking for anyone who has done or seen any reports on Thermal Shock to smt parts and/or via holes caused by Soldering Irons at
Electronics Forum | Thu Dec 19 10:52:12 EST 2002 | bremerg
Does anyone have experience using Sn43Pb43Bi14 solder on high reliability circuit boards that are subjected from -55� Celsius to +85� Celsius? What companies/industries are using this solder? Does anyone have detailed information on what the proper
Electronics Forum | Thu Feb 15 19:41:38 EST 2001 | davef
What do you mean by "But after performing temperature cycle test, the former aging rate (from the shear strength ) seems faster than the latter."? Comments are: I can't recall having heard the term "precipitation hardness" [not that that means anyt
Electronics Forum | Tue Aug 22 09:49:39 EDT 2000 | galltp
Dr. Lee, We have seen a small decrease in shear strength for Pb/Sn plated components attached with Sn/Ag/Cu solder compared to components with a Pb-free finish. With the jump in the cost of Pd, we are struggling to define a practical Pb-free
Electronics Forum | Wed May 18 07:22:06 EDT 2005 | davef
Wire bonds don't stick when bonded * Check pull and shear strength. * Depending on point of failure, review parameters. * Listen during bonding, if there is a high pitch buzz, there is vibration in the system somewhere, "seek and destroy". * Get the
Electronics Forum | Fri Nov 13 11:29:59 EST 1998 | smd
Anyone using SMT "Fair-Rite" beads? We have a P/N 2743019447 that we're using. We need to know the shear force strength of the part and the vendor's man who knows is in Deutschland and can't help until Monday. I can't wait that long. Also, does any
