Electronics Forum | Mon Apr 15 20:03:59 EDT 2002 | Jones
They work great as long as your conveyor speed has been calibrated and checked on some type of PM schedule. On some oven types these sensors can warn you to possible problems with the conveyor speed. Say the oven is calculating that the board is movi
Electronics Forum | Fri Apr 26 12:35:05 EDT 2002 | blnorman
Sounds like the mask wasn't properly cured. What kind of solder mask is it? We use a photoimageable mask on our boards. The secondary cure is ~ 90 minutes @ 150�C. One of the cured mask tests is solder bath resistance where it has to resist degra
Electronics Forum | Mon May 13 16:20:10 EDT 2002 | ian
Are you refering to MacDermid Sterling Silver finish or immersion silver in general. We have had enquiries about Sterling Silver from a customer and the blurb I have read looks very good (don't most sales literature). Has anyone tried this finish? O
Electronics Forum | Fri May 17 14:46:29 EDT 2002 | Claude_Couture
in both samples the water displacement is 1 cubic inch of water since the volume is the same. the first has a thickness of 1 inch, the second has a thickness of a few microns. if you know the volume and one of the lengh, width or thickness, you can c
Electronics Forum | Fri May 31 16:36:57 EDT 2002 | davef
If you know about 'BIG DADDY', you know what I know. A nearby thread [ http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=2&Thread_ID=1678&mc=2&forum_idx=40 ] addressed your question more directly, but certainly didn't drill-down t
Electronics Forum | Tue Jun 11 17:12:29 EDT 2002 | mdmilward
Hello, Can I please get some help on finding formulas for calculation of surface mount pad sizes for stencil design and solder paste deposition. I've recently joined a company who has allowed their stencil supplier to develop the stencils based upon
Electronics Forum | Fri Jun 21 12:49:58 EDT 2002 | surinder
Hi Russ, Thanks for your input.My board has SMT Chip components, SOT23,SOIC's & 2QFP (25MIL PITCH). Also,taking consideration that the board is well design for Wave.This board has been designed end of last year. We have latest model of Electrovert ma
Electronics Forum | Wed Jul 03 14:08:10 EDT 2002 | gbriceno
I' designing a PCB with SMD components to optimize the land patterns for wave soldering. I find that the IPC-SM-782 land patterns are not robust enough for wave soldering, yielding ramdom skips and bridges. This PCB will also give me insight on sha
Electronics Forum | Mon Jul 08 09:52:37 EDT 2002 | gdstanton
Folks, Looking for some feedback from anyone who has had experience with panelized or palletized CCAs, or anyone interesting on commenting, where interconnects were used to facilited a "gang" incircuit and functional test. We are considering implem
Electronics Forum | Tue Jul 30 02:14:09 EDT 2002 | - One of the 2 percenters -
Buy American is the answer, however we must also change business ethics. US business has devalued quality and bolstered their legal departments!!! It is easier to make legal statements defending your product when it fails, rather then pay educated,
