Electronics Forum | Wed Nov 17 09:28:40 EST 1999 | Steve Z
Hello, I am new to the SMT area and I need to know what a "good" vapor phase reflow profile should look like. The fluids we are using have a BP of 45 C and 219 C. Thanks,
Electronics Forum | Wed Nov 17 00:59:33 EST 1999 | Gyver
Hello all, Recently we changed the vendor of flux. However, we would like to know in detail about how to qualify the new flux. Are there any procedures or standards to follow? Please help us to solve this problem by providing your knowledge and exper
Electronics Forum | Wed Nov 17 11:38:25 EST 1999 | Chris May
Chris, I have heard through the grapevine that Research International (?) are or have developed one. I don't know anymore details I'm afraid. Regards. Chris May
Electronics Forum | Wed Nov 17 16:50:57 EST 1999 | Dave
Research Int'l does indeed make one - the Tower. They can be found at www.research-intl.com.
Electronics Forum | Tue Nov 16 18:02:29 EST 1999 | John Holland
What are the main advantages of moving from a 140 degree C FR4 laminate to a higher Tg laminate 180 degree C ?. Would the higher Tg laminate be less susceptable to bow and twist ?. John Holland
Electronics Forum | Tue Nov 16 09:37:53 EST 1999 | Ted C
Is anyone out there using automatic despensing equipment rather than stencils for depositing paste on BGA patterns prior to placement/repair. What is minimum dot size that can be reliably applied. Pro's/con's?
Electronics Forum | Tue Nov 23 20:05:05 EST 1999 | Jeff Ferry
Ted, We've tried using dispensing systems but without success. We either use stencils or bump the pads with solder. Stencils are messy and time consuming, but seem to be the best thing going. Jeff Ferry Circuit Technology Center
Electronics Forum | Tue Nov 16 11:02:46 EST 1999 | Dave F
Wolfgang: A snipet of information that maybe more on track that the previous babbling: The temperature limit for FR4 is 130�C according to UL746(?) Good luck Dave F
Electronics Forum | Mon Nov 15 10:31:52 EST 1999 | Clifford Peaslee
Hello SMTneters, Today at 3:00PM EST, we will temporarily shut down the web site while we move the web site's data to a new dedicated SMTnet server. We expect it to take at most 3 hours. Thanks, Cliff
Electronics Forum | Mon Nov 15 20:26:33 EST 1999 | Clifford Peaslee
Hello SMTneters, The move is complete. The numerical IP address is temporary, until Internic changes the name pointer which should be in a day or two. Web email should not be affected. If you find any problems, please email me. Thanks, Cliff
