Electronics Forum | Thu Oct 24 03:03:13 EDT 2002 | harriss
Hi: The component height will increase on the PCB after reflow soldering. But i don't know the accurate data of the increased height. Who can help me to get it? The stencil thickness is 5 mil we used. Thanks Harriss
Electronics Forum | Tue Mar 25 15:36:38 EST 2003 | Ren� Sandoval
What is the optimal design for the resistor Net Array 0402 (8 pins)with a 5 mils Stencil th.?
Electronics Forum | Fri Sep 26 16:53:44 EDT 2003 | V_Sa
Yukim, I had experienced this problem with 0402 package. I resolved it 100% by reducing stencil thickness from 6 mils to 5 mils and changing the apetures from 1:1 to homebase.
Electronics Forum | Mon Oct 13 13:49:29 EDT 2003 | mrmaint
Does anyone know of a standard stencil thickness for BGA'S. We currently use 4 to 5 mil stencils depending on component mix. Is an aperature reduction required for BGA'S. If so what percentage. Any help would be greatly appreciated. Thanks MRMAINT
Electronics Forum | Sat Feb 14 12:33:30 EST 2004 | agp
We are currently experiencing solder bursting in one of our smt reflow lines. Burst as small as 5mil diameter are messing gold fingers of the pcbs. Anybody who have experienced same problem? Would appreciate any suggestion.
Electronics Forum | Thu May 13 17:11:48 EDT 2004 | Longhua
We are looking for PCB suppliers capable of building .5mm through hole boards. Internally, we require 5 mil traces, sometimes 4 mil. Our preferred material is Polyimide or BT Resin, and perhaps FR408. All help and/or recommendations is greatly appre
Electronics Forum | Tue Feb 22 12:03:32 EST 2005 | russ
You may to reduce a little bit more with HASL. for .4mm pitch and such I would maybe go to a 5 mil with your standards.
Electronics Forum | Mon Jun 13 14:34:16 EDT 2005 | peter ng
The stencil thickness should be 5.5 mils.The squeeze speed around 20mm/s,print gap 0.15mm,print separation 0.3mm/s.
Electronics Forum | Sat Jun 25 10:04:08 EDT 2005 | ktron
Hi MSK, Stencil thickness: 5mils with laser cut Smallest pitch: 20mils Underscreen cleaning frequency: 10 bds per cleaning Note: We have decreased the cleaning frequency from 10 boards to 3 bds to reduce solder bridging after printing Regards,
Electronics Forum | Thu Jul 14 11:44:18 EDT 2005 | Tom
Thanks Again Everyone! One more question... Do you suggest to use 5 mil stencils? My existing stencils are all 6 mil and 8 mil. Should I change them?
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