Electronics Forum | Fri Feb 20 16:37:55 EST 1998 | Lee Ritchey 3Com
| I have developed a method to increase SMT circuit density | up to 40%. Looking for interested PCB fabricators and | designers for process improvement. Earl, We are always interested and working on new designs. How can we get involved?
Electronics Forum | Mon May 13 14:15:46 EDT 2002 | davef
Entek is Enthone's OSP [organic solderability protection]. It is widely used in the PCB fabrication business. Imidazole (Via Systems) is good, but is not as widely available. Search the fine SMTnet Archive on: * OSP * Entek CU-56, Entek Plus CU-10
Electronics Forum | Tue Jul 22 20:38:28 EDT 2003 | Paul T.
Have the PCB fabricator use a conductive paste to fill the vias and then finish by plateing over the via. Make sure it's coplanar to the side they're on, usually secondary side for discretes. PT
Electronics Forum | Fri Oct 12 16:22:39 EDT 2012 | jdengler
I believe the heavy C is for CENTURY PC BOARD CO LTD and the number is the plant designation. See UL file # ZPMV2.E189010 Jerry
Electronics Forum | Tue Dec 10 13:35:34 EST 2019 | scotceltic
I am looking to see what people are using for a min-max range to supply your PCB fabricators regarding solder mask thickness. I saw some points in the archives but not too much regarding what people are providing as their spec ? Any help would be a
Electronics Forum | Mon May 23 12:17:50 EDT 2022 | proceng1
As stated above, be more specific. What position are you working and for what type of business? PCB fabrication? Component manufacturer? OEM or CM circuit board assembly?
Electronics Forum | Tue Dec 09 10:04:36 EST 2008 | lazzara55
SMT-ypw: Does PWB supplier start to implement PWB drying packaging? B3: YES! The fabrication of the PCB involves a series of wet processing that requires counter-measures to remove moisure. While some of the PCB processes also include bake cycles th
Electronics Forum | Tue Apr 09 16:31:49 EDT 2013 | alfredodsanchez
Hello everyone! I have a problem with PCB, we detect that some contamiation apear (dark spots similar to glue or underfill) we detect that this element is Policarbonate. I don't know if on PCB fabrication process some policarbonate are used. We alr
Electronics Forum | Wed Oct 24 06:58:22 EDT 2018 | vipcircuit
Shenzhen Vip Circuit Co.,Ltd.is a high-quality PCB and PCBA manufacturer in Shenzhen,China,focus on prototype to medium volume PCB fabrication,assembly,components sourcing. Joe Wu Sales Engineer E-mail: joe@vipcircuit.com Skype: 344541865@qq.com ht
Electronics Forum | Wed Feb 04 06:26:20 EST 2009 | sachu_70
Hi Peter, The defect you observe during the second side reflow could be caused due to improper Au plating thickness in the PCB fabrication process. You can refer IPC-2221 wherein plating thicknes for ENIG mentions 0.08um to 0.23um for Immersion Gold,
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