Electronics Forum | Thu Dec 07 19:54:55 EST 2006 | davef
We agree with "guest" above. This a "chip bonder" type material used to improve the reliability of array type devices. "A relative comparison of the N50 values is given below: No underfill = 1.0X (baseline) Corner bond = 1.3X Non reworkable underfi
Electronics Forum | Sat Mar 27 12:36:34 EST 1999 | Scott Cook
| Hi, | I have a customer who's electronic assemblies produce RF. He is insisting upon aqueuos cleaning. We switched to a no clean solder years ago and no longer have an aqueous system. | Is aqueous cleaning necessary to eliminate 'cross talk' of
Electronics Forum | Mon Feb 14 12:07:47 EST 2000 | Dave F
Leslie: Product screens and tests of prototypes and test vehicles should be tailored for the specific goal and product. I caution your use of equations and test condition information without specific use environments and design conditions. Lawyer:
Electronics Forum | Fri Nov 04 11:29:46 EST 2005 | JeffP
Jay, I work for a company that manufactures batch reflow ovens however, I will try to be as subjective as possible. For the most part, what others have posted is true. Yes, there is one heating chamber and if the heater does not have enough power
Electronics Forum | Fri Nov 09 19:31:43 EST 2007 | yshiau
Thank you to Dave and Scott!! What I'm delaing with is mass production test for small memory cards in volume! The reason I choose Non-operating temperature cycling is so that I can deal with volume. I can throw in quite a few memory cards in chambe
Electronics Forum | Mon May 27 18:51:17 EDT 2002 | harotec
Hi Yngwie Have you got a reflow oven yet. If not, forget about complicated profiling with test runs or reflow trackers. We've got a nice oven with integrated temperature-feedback system. You build any profile you want and the oven will adjust its hea
Electronics Forum | Fri Feb 10 11:33:32 EST 2006 | fredericksr
I am putting together an internal oven calibration procedure. I am interested in how stringent your oven calibration process is. Really what I am putting out is a verification process and a calibration process for the event that verification should
Electronics Forum | Wed May 15 16:07:23 EDT 2013 | rgduval
We've recently acquired a Rayco Aqua Blaster 1250 from an equipment auction. As with a lot of used equipment, it did not come with a manual or documentation. I've finally got a DI system hooked up, and am working on getting the washer going. But,
Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef
Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c
Electronics Forum | Fri Jan 15 16:55:50 EST 1999 | Chrys
| | | Hello, | | | | | | We are qualifying new sources of PWB vendors. We've got the first lot of "produciton" boards in and we want to put them through the paces before turing the vendors on. | | | | | | So far, the tests I can think of performin
.jpg)