Electronics Forum | Thu Dec 21 17:17:36 EST 2000 | Lee
I was talking to a field rep. for Electrovert when they installed my last machine about bent fingers. He told me there was a aftermarket source for rigid fingers that were made out of a thermoplastic that would shear off rather than bend. Is there
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 | Tue Jan 04 17:27:43 EST 2000 | John Thorup
For clipping off small boards and small quantities you can try Simonds. With no components and for longer straight cuts a shear would be more appropriate. How about the various de-panelling machines? The answer could be more specific if you would te
Electronics Forum | Mon Dec 06 09:16:22 EST 1999 | Dave F
Russ: Three things: 1 Wolfgang is 100% correctamundo about the slow dissolution rate of gold 2 Shear stength of the gold 63/37 solder connection decreases rapidly, as the gold content of the solder connection increases above 2%. 3 There are many
Electronics Forum | Tue Oct 26 11:22:45 EDT 1999 | Morris
I am evaluating a bottom side glueing process. I was wondering if anyone could share their shear force specifications, or how they were developed. I would be most interested in the 0805 and Sot23 package types. Also, does anyone know if heating th
Electronics Forum | Tue Oct 26 11:15:55 EDT 1999 | Morris
I am evaluating a bottom side glueing process. I was wondering if anyone could share their shear force specifications, or how they were developed. I would be most interested in the 0805 and Sot23 package types. Also, does anyone know if heating the
Electronics Forum | Thu Feb 18 20:24:37 EST 1999 | Tony
I'm trying to replace the PTH connectors with the SMT connectors in my design, and would like to make sure the SMT connector solder joints are as stong as PTH's. What's the right test to verify that? Is Pull and Shear test is the right choice? Where
Electronics Forum | Wed Aug 29 11:09:01 EDT 2001 | rmerk
Dave, We are using tab nibblers right now, but they have a hard time with round boards. FKN has a model(N200) that shears the tabs off. The cost is fairly low(3K). I just wanted to know if there are any other brands out there that might work on rou
Electronics Forum | Mon Oct 08 02:12:21 EDT 2001 | george
I do not doubt about the power of the 552 and 580, but in some cases it may be overdone. For just a simple (straight forward) shear test, you can also look at: http://www.chatillon.com/products/dpp.html (�Low Capacity Mechanical Force Gauge. These er
