Electronics Forum | Wed Mar 20 06:20:18 EST 2002 | hany_khoga
Thanks Dave for this contribution. After a lot of discussions with colleagues I found a general tendency to use the air hand tool. Could you please send us detailed steps of using those air guns, considering the distance between the gun & the PCB, t
Electronics Forum | Wed Mar 20 17:18:08 EST 2002 | alex_kirichenko
Hello everyone!! About hot air tool.... Most of the the brands will supply you with specific nozzel for the package to be removed, it will heat up leads only, so you don't have to mask anything (sounds like less work :) ) by the way I had to take
Electronics Forum | Fri Apr 26 11:11:53 EDT 2002 | Mike Frye
I am looking for anyone who may have information on adjustable reflow pallets. Could you please provide a supplier and contact. My dilema is that during an initial NPI build the PCB's may not arrive with rail adds. I need a way to transfer this PCB t
Electronics Forum | Thu May 02 17:35:15 EDT 2002 | davef
Dunno. Visioning markets beyond our factory walls may be a bit far afield for some of us. Consider contacting a market research firm. For instance Keith Robinson [Frost & Sullivan krobinson@frost.com 210-247-2402] wrote an article on the electron
Electronics Forum | Tue May 07 22:25:15 EDT 2002 | L_ch
Hello, As you know for the double side assembly PCBs, we normally first place the bottom side, then place top side after reflow soldering of bottom side. are there any other considerations for the sequence of reflow soldering ( bottoms side first, to
Electronics Forum | Fri May 17 11:10:25 EDT 2002 | wister
Is there any software to design the stencil openings? It may be including automatic modify the aperture,monitoring aspect ratio and area ratio,even let you know the whole vloume of the opening and average ratio?because the stencil design is more impo
Electronics Forum | Fri May 31 16:26:22 EDT 2002 | Feederman
Steve, you might want to check out the pre-printed and print-on-demand label feeders that are available through Hover-Davis. These types of feeder remove the potential human placement errors which sometimes occur. The feeders are available for most p
Electronics Forum | Mon Jun 03 22:16:49 EDT 2002 | alex_kirichenko
Hi Jim! Just an idea.... There are some reflow ovens which use cooling on the bottom side of pcb during reflow for doublesided boards. It prevents solder on the bottom side to melt. You might try cooling your BGA while reflowing parts on opposit s
Electronics Forum | Tue Jun 04 11:14:48 EDT 2002 | ckd
Hi All - My question is how do solder balls form and stay in the vias? The assembly goes thru SMT top placement, reflow then thru hole components mounts on top side as well. The board is sent thru the wave solder process. Has anyone experienced this
Electronics Forum | Wed Jun 05 14:24:57 EDT 2002 | davef
IPC/WHMA-A-620, Requirements and Acceptance for Cable and Wire Harness Assemblies It took the fine folk at IPC forever and a week to produce A-620. So, we continue to use NASA-STD-8739.4, Crimping, Interconnecting Cables, Harnesses, And Wiring that
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