Electronics Forum | Fri Sep 07 09:13:21 EDT 2007 | smtirl
Folks, we've recently upgraded to Heller MKIII reflow ovens with Gen 9 cooling units. We're running N2 atmosphere at 1000ppm O2 and Kester256 solder paste. We're seeing a big problem with flux residues building up in the cooling section of the
Electronics Forum | Tue Sep 25 20:33:02 EDT 2007 | davef
We vote for: IPC-TM-650 2.3.25.1, solvent: 80�C, extract time: 60 minutes, hold time: 30 minutes or until room temperature. Listen, it really doesn't matter which method you decide to use. IPC-TM-650 2.3.25 is a process control method. It's more imp
Electronics Forum | Wed Oct 10 02:04:10 EDT 2007 | omidjuve
hi we use a no clean solder paste with the sn63pb37 alloy and our high frquency board doesn`t have any problem in test but after this product is finished now we use 2 different solder pastes 1. sn62 pb36 Ag.4 RA tape 2. NC type lead free with Ag i
Electronics Forum | Tue Oct 16 06:41:22 EDT 2007 | aj
Hi All, I understand that reflow Profiles are Product dependant but I would like to compare my profiles to what others are doing. Any input is greatly appreciated. I have a 5 zone Oven + 2 cooling Zones. ( Leadfree) If I could get some answers to
Electronics Forum | Mon Nov 19 21:42:51 EST 2007 | jwsmt
I'll e-mail pics to you. Answers to asumptions: * Flex in end-item use was measured at 410 microstrain * Supplier PPM last 12 mos less than 1 * Part goes through 2 reflow cycles; once on top and once on bottom * ICT microstrain was 1365; reduced to
Electronics Forum | Wed Nov 28 17:02:28 EST 2007 | joeherz
We use TraCon's TraBond 2112 for staking applications where larger gaps are involved. It is formulated for PCB staking applications. The material is very low sag and high viscosity. It's 2part and comes in handy bi-paks. Work life is 20-30min.
Electronics Forum | Thu Dec 06 18:11:46 EST 2007 | slthomas
I've discovered an interesting bug. If I take a VIOS pcb file on the machine, convert to text, copy to disk, then open that file up on a pc with Cad2Cad, when I close the file all of the component info. has reverted to defaults (comp. number = feed
Electronics Forum | Thu Jan 03 10:55:17 EST 2008 | davef
Q1: Can Stainless steel be soldered? A1: Yes, stainless steel can be soldered. Q2: If yes, is our normal process adequate? A2: We know nothing about your normal process. Common flux used in routine soldering will not step-up to the requirements nece
Electronics Forum | Fri Jan 18 07:01:41 EST 2008 | cyber_wolf
Hi, The solenoid that sits on top of the vacuum generator on my Fuji bare board loader is croaking slowly. Fuji will only sell me the entire generator assy. which cost more than I paid for the loader. The only markings on the solenoid are DC24V 540
Electronics Forum | Fri Feb 01 08:40:12 EST 2008 | jdengler
Hi AJ, Change ALL 12 of the 1.0mm to 0.7mm. The CP 4 can only set nozzle size for S M and L not some of the 12 but all 12. 0402 usually come in 8 x 2 mm tape so you need 8 x 2 feeders or you will waste 1 component for every component you use. T
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