Electronics Forum | Wed May 24 13:10:28 EDT 2006 | Chunks
VIP 98, I believe that's a 7 zone if I can remember 6 years ago. Try 150, 165, 200, 235, 235 and 235 (top and bottom temps) with a belt speed of 35 inches per minute. This should get you in the ball park depending on the size of your board.
Electronics Forum | Thu Apr 05 14:12:29 EDT 2001 | CAL
That would be Don Dawson @ Delaware Technologies. 609-235-8454.
Electronics Forum | Mon Jul 13 08:12:58 EDT 2009 | cyber_wolf
Does anyone have a source for new Kuroda MDV235-P vacuum valves ?
Electronics Forum | Sun May 24 21:12:59 EDT 2009 | keith78
I have a problem recently to qualify QFN package on solder joint reliability. The pcb thickness stated in IPC-9701 is 2.35mm but from the in-house test, QFN surface mount on 2.35mm thickness PCB board have a short cycle to failure due to higher CTE m
Electronics Forum | Fri Dec 22 20:09:31 EST 2000 | SANTANA, ABELARDO RDZ.
looking for anybody that has constant problems with their equipment. I need advice on whether it is a known problem or if it simply human error. I have 2 gsm's line's need to get production way up, and have repeatability on a constant basis.
Electronics Forum | Tue Jan 23 13:16:09 EST 2001 | CAL
Hoover-Davis makes excellent feeders. You may want to also try http://www.delawaretechnologies.com/prd_smtf.htm The person to speak with is Don Dawson 609-235-8454. Deleware Technologies makes feeders for most placement machines. Cal
Electronics Forum | Fri May 02 12:33:47 EDT 2003 | Kris
Hi What is your reflow profile ? Try to limit exposure at parts with visible leaching to around 30 to 40 secs at around 235 to 240 deg T
Electronics Forum | Wed Jul 06 18:11:37 EDT 2005 | russ
Please search the archives as this has been discussed on many occasions. Everything should be fine except for BGAs which will require a higher temp of 235C at the peak in reflow.
Electronics Forum | Mon Oct 03 10:20:43 EDT 2005 | davef
Follow your component supplier recommendations. For instance: Xilinx says their lead-free alloy for their BGA spheres is SnAgCu, and liquidous is 217*C and they want you to peak at 230 - 235*C for good wetting according to their reflow guidelines.
Electronics Forum | Tue May 02 07:56:58 EDT 2006 | billyd
Yeah, that's what I'm doing now. I have it now peaking around 235, with about 70 sec. above 220C. (220C is the reflow temp, according to manufacturer. I've always used 217C for Pb free) Wish me luck. Thanks!
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