Electronics Forum | Tue Jan 12 16:16:21 EST 1999 | Sanjay Bhatikar
For process management with SPC of the stencil printing process with a fully automatic stencil printer, what process outpur parameter would you recommend for SPC? It appears to me that there are two options: A: to have a pn chart based upon the % of
Electronics Forum | Fri Jan 08 18:28:04 EST 1999 | Bill Schreiber
When going to a "no clean" process, there are always two items that will require cleaning - stencils and pallets. You may also have a requirement to clean misprinted PCBs and possibly SMD adhesives. The Smart Sonic Stencil/Pallet Cleaning Process
Electronics Forum | Tue Jan 05 18:18:56 EST 1999 | Hallj
| If passive componets are cheaper why aren't they more popular? Manufacturers like Murata and AVX claim availability and substantial cost savings but little interest seems to exist. Why? Your input is greatly appreciated. | I use bulk fed compon
Electronics Forum | Tue Dec 29 04:27:08 EST 1998 | John W
| I have an inbteresting problem on my N2 wave soldering lines. | We have two N2 wave soldering line. Line A is old one and Line B is new. | We found solder balling Phenomenon on PCB After soldering in the new N2 Atmosphere Wave Soldering Machine. In
Electronics Forum | Mon Dec 28 14:49:45 EST 1998 | Earl Moon
| Where can I get information on analyzing the pros and cons of setting up a SMT line. I would also like to find information on what equipment is needed, manpower, cost, lead-times. | thanks | Ah Joann, The first thing you must know is don't trus
Electronics Forum | Tue Dec 29 09:46:37 EST 1998 | Darryl Schlosser
| We are looking into a SRS machine, and one question keeps coming up, "If we pull out all the solder, will the recycling company refuse to purchase the remaining dross?" | | Anyone who out there that uses a SRS machine(Solder Recovery System) I wou
Electronics Forum | Mon Jan 04 18:29:06 EST 1999 | Mike Zurn
| | Does anyone have any experience with vibration testing of BGA packages and assemblies? We are starting to design BGA's into some of our products and we have not found very much information on vibrational test results. Any information will be he
Electronics Forum | Mon Dec 28 08:19:58 EST 1998 | Earl Moon
| | Your question seems vague and very general. Gerber formatting is nothing more than describing points in an X-Y plane. It may be provided via CAD design capabilities or by manual means that has been digitized. Gerber data is "dumb" - meaning i
Electronics Forum | Thu Dec 17 10:25:19 EST 1998 | Earl Moon
| I have a mixed technology board ranging from 50 mil pitch devices to 20mil Qfp's to PBGA-352 at 1.27mm, and 6 Intel uBGA-48 at 30 mil pitch. With all these different package types i'm torn between using a 4 or 5mil thick stencil. The ball dia. is 1
Electronics Forum | Mon Dec 14 10:48:32 EST 1998 | Larry Johnson
Okay here is the deal. I am fairly new to the company here, but one thing I have noticed is that we read way to many fiducials, in my opinon anyway. One for example is this. One assembly was reading 17 fids. Smallest pitch was .25mil I say you o
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