Electronics Forum | Wed Nov 07 02:41:58 EST 2001 | marshall_shuai
Dear Mr. Jeff, Our SMT room are using the DEK288 and MPM2030 Printers at the same time. We found the similar problem also as mentioned by MR.JOHNW. We analysis it was mainly caused by the PCB metal fixture used in DEK288. The PCB metal fixture is
Electronics Forum | Wed Sep 19 16:02:14 EDT 2001 | fcouture
Pad Metallurgy Used: >Is your question about this targeting the current industry capability of using tin plating technology on such small >pad dimensions? Actually I should have asked for tin/lead plating (HASL) and yes it's to have an idea on capab
Electronics Forum | Wed Oct 10 09:38:32 EDT 2001 | brownsj
I'm trying to design a costing matrix for raw cards so our designers can estimate the costs of their raw card designs, this will hopefully slow down their lust for technology and get them considering project budget costs. Does anyone know of where I
Electronics Forum | Tue Oct 16 17:18:25 EDT 2001 | lileubie
Hello Chua, Welcome to the world of SMT. You found this site, so you're already on track to learning about SMT. You can check out SMTnet's library as well as SMTA's (Surface Mount Technology Association) located at http://www.smta.org. Check that
Electronics Forum | Tue Oct 16 09:08:34 EDT 2001 | davef
Adding to Mike's comments. There are two types of selective wave soldering machines. * Chimney type, like the AirVac and Wenesco that Mike used. They use a boot to funnel the solder to the component to be soldered. * Programmable head type [ie, ERS
Electronics Forum | Fri Nov 09 16:58:30 EST 2001 | davef
Go for it!!! You were unspecific, but adding mask to a completed board could cause: * Increased paste thickness, if you have double thickness of solder mask. * Wrinkled and lifted solder mask under the component, if the solderability protection of
Electronics Forum | Mon Dec 10 09:32:14 EST 2001 | cmay
William, Just to start with, I am no expert, but I have a few books lurking. According to one entry, Surface Mounted resistors stuck to circuit boards had been described in 1952 (Circuit World, Feb edition 1952, page 70) The first mention of a devi
Electronics Forum | Fri Dec 07 15:17:06 EST 2001 | davef
Dull / shiny, I�m not sure that�s a proper indicator. If �Liquid Tin� adds a thin coat of solderable material without converting the corrosion on the surface of the lead, the corrosion will [probably] continue to increase and potentially affecting t
Electronics Forum | Tue Dec 11 20:22:33 EST 2001 | mparker
in your example, wool clothing and prairie winter ionization makes sense. Smocks would be an improvement to contain the potential of static build up. If you go to dress codes, then you run the risk of having to provide uniforms or pay a laundry allow
Electronics Forum | Mon Dec 17 07:34:07 EST 2001 | Adam
Dear Colleagues Does anyone know or care to share any information as to typical torque values ( N/cm ) for components that have been placed using screen printing surface mount adhesive, using a plastic stencil ? Are there any industry set shear test
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