Electronics Forum | Mon Dec 11 20:44:37 EST 2006 | davef
Title : LEAD-FREE WAVE SOLDER FLUX EVALUATION Author : Michael Havener Author Company : Benchmark Electronics, Inc Date : 09/25/2005 Conference : SMTA International Abstract : The European Union�s deadline to ban lead in electronic pr
Electronics Forum | Tue Aug 15 08:36:57 EDT 2000 | Mike
I will look into why you didn't receive the July issue of the SMT Express, but the August issue doesn't go out until tomorrow. Also, we don't send a notification when you change your email address, however, the address you posted with is the same one
Electronics Forum | Sat Nov 05 09:02:23 EST 2005 | grantp
Hi, The oven we had used an air sensor, however we had heat from the metal oven walls IR conducting into the board. Once you run an oven, the metal retains a surprising amount of heat, and that radiates as IR energy out of the walls, and into the pr
Electronics Forum | Fri May 22 12:42:43 EDT 2015 | deanm
Sr. Tech, you are right in that there is no verification of the profile. We are a Class 3 high mix OEM. We have visual inspection after SMT. We have not seen problems with wetting, grainy solder, cold solder, charred boards, etc. that would indicate
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 | Mon Oct 08 17:01:19 EDT 2001 | upinder
Hi All. Need some immidiate help. I need to know any / all basic info regarding Teflon PCBs. Any special requirements for assembly on SMT and thru-hole lines, like profiles, placemnt , wave etc. Will there be some basic / big differences in comparis
Electronics Forum | Wed Apr 09 09:44:12 EDT 2003 | iman
yes, we r profiling direct thermocouple attachment to the LGA pads. based on direct experience of yourself or others, what paste (brand/type3?/type4?/alloy?/flux%?) gives the optimal repeatable characteristic-patterns to minimize this defect?
Electronics Forum | Wed Apr 16 20:22:13 EDT 2003 | praveen
Hi, I have taken the profile.The peak temp. at the lead terminal is 219 degc, duration above MP 54 sec and duration 125 deg C-160 deg C is 60 sec.
Electronics Forum | Mon Jun 09 16:23:23 EDT 2003 | Veronica Morales
Hello, I'm new on this SMT area and I'm getting involved on the oven profilling, I just heard about the term Delta T, can any one explain what is this? We use convection ovens. Thanks in advance.
Electronics Forum | Wed Mar 10 09:20:20 EST 2004 | Robert
Thanks for the offer. However, I do not have access to the gerbers as I am only a low level personnel running the SMT line. I'll probably try and win approval for the purchase of a MOLE or datalogger and go from there. Thanks all.
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