Electronics Forum | Tue Sep 25 14:25:30 EDT 2001 | davef
Points in response are: * Microstencils work fine with paste, although they are a little fussy to use. * Never have used microstencils for flux. * Like Hussman, we dab the uBGA into a puddle of tacky flux and then place it on the board. * On contro
Electronics Forum | Wed Feb 09 09:34:03 EST 2000 | JAX
If you are talking about failure analysis and machine utilization information try looking at CIMCIS. They have a wide variety of products that can help. You might not even need their services, most SMT equipment has software packages that will allre
Electronics Forum | Thu Dec 12 10:54:57 EST 2002 | russ
I have had both success and failure with immersion tin. It seems to be very dependant upon the PCB suppliers process control. If its too thin, solderability is greatly diminished. I have never had it too thick (see Daves comments). We currently d
Electronics Forum | Sat May 24 00:43:59 EDT 2003 | iman
Our engineers did a study on our medical product with 1mils standoff height, and one issue was 100% of the boards that underwent ultrasonic failed due to failure of the package wirebonding. Poor reflow control would be one area to review in any event
Electronics Forum | Sat Feb 19 09:26:19 EST 2005 | davef
Your customer asks a reasonable question. How do you know that your: * Paste has not dried? * Stencil aperatures have not become clogged? * On and on ... Some agrue that printing is the most critical process and that it drives all down-stream failu
Electronics Forum | Wed Oct 19 13:32:12 EDT 2005 | shk5678
I have a couple of customers I showed this to and they were impressed with the capability but didn't know the price yet. Reason being was the control of the amount of paste applied to the pads could be adjusted. They both said they had problems with
Electronics Forum | Mon Jul 07 09:00:50 EDT 2008 | josh_brubaker
These images are of two melted matrix trays, full of BGA components, which were left to bake in an oven over the weekend. The oven temperature controller was not checked after a recent power failure and reached a temperature of 715�F. The two trays m
Electronics Forum | Sat May 03 14:01:21 EDT 2014 | jyo_409
Could you please share me what are the possible reasons for the DC DC Converter failures. Application of the subjected DC DC Converter is to separate the power & control ground. We are using DC DC Converter in regulator O/P, even though converter is
Electronics Forum | Wed Jul 08 10:29:14 EDT 2015 | goodting
Dear SMT Specialists Had anyone encountered GSM ADvantis zeroing failure problem? The x-axis is idle while the y-axis is waiting to be activated. My initial guess is either Axis control board or machine configuration conflicts. How to fix it? any le
Electronics Forum | Tue Oct 22 21:24:02 EDT 2019 | richgreen01
Hi All I have the above machine and every day on start up i get the failed to initiate hardware message.I have been getting around this by re initiating the motor controllers and it is good to go after this.Does anyone know the causes of the initiat
