Electronics Forum | Fri Oct 26 02:12:35 EDT 2007 | jola
Hello. In a stupid way I'm glad not to be alone in the feeder jungle. We have the same ammount of feeders with a mix of Fuji and Panasonic high spped feeders as the main problem. The way we do it at the moment is that we have marked up all with a num
Electronics Forum | Fri Nov 16 03:23:15 EST 2007 | jwsmt
I'm requesting assistance in developing detection and containment methods for an issue with an SMD ceramic resonator (Murata CSTCE-G-A family). The returns have external visual cracks that originate at the termination and run at approximately a 45 d
Electronics Forum | Tue Jun 26 15:05:02 EDT 2012 | upguy
Thanks for responding Fred and Peter. We have had the same damage to the tip occur even though our TP9-UFP sits in an air conditioned room (74 F / 23 C). I spoke with Matt at MyData (who was very helpful). He said that the X-axis bearings, the X-a
Electronics Forum | Wed Sep 18 19:38:33 EDT 2013 | jvadillo
Hi all! after hours of manual hand soldering and after spending thousands of euros subcontracting PCB assembly, we have decided to buy a fully automated pick&place machine. Our main assembly requirements are 0805/0603 for passives and TQFP-64
Electronics Forum | Tue Dec 22 12:08:06 EST 2015 | aqueous
The overwhelming technology used in post-reflow cleaning of electronic assemblies is aqueous. Prior to the 1990's, solvents and vapor degreasers dominated the cleaning industry. After the popular solvents were banned via a United Nations treaty, alte
Electronics Forum | Wed Sep 04 13:58:36 EDT 2019 | smrsteve
Hello Bobpan, Thanks for the response. 1. Function 30 gives me a consistent 182-185, even after nozzle changes. I can vary this by changing mod code 15 and I have been advised to aim for 90-110, but it doesn't seem to make any difference so I've go
Electronics Forum | Sat Jun 27 17:49:24 EDT 2020 | jmelson
I can't find much info on the older Essemtec machines. First, I'd want to see the "spec sheet", then I'd want to find out what the programming environment is like. (I was really impressed with the Samsung machines in that regard.) I have not seen
Electronics Forum | Sun Oct 11 16:20:49 EDT 2020 | kumarb
Hi. My 2 bits...from your list, we have had communication with Seamark and our experience so far has been very positive. We are reviewing to purchase one of their BGA rework systems, primarily from the video on youtube showing Louis Rossman running o
Electronics Forum | Wed Mar 24 23:12:48 EDT 2021 | grahamcooper22
0.66 area aspect ratio...so for example...if the device is 0.5mm pitch QFP, the pcb pad may be 12 thou wide..make the aperture 9 to 10 thou wide...and reduce it's length by 10 % overall compared to the pcb pad.... Depending on device pitch, select ap
Electronics Forum | Tue Jun 05 03:56:52 EDT 2001 | JohnW
Flip Chip/uBGA Underfill Visual Standards The aim of this document is to produce some draft text and then select photographs to make up a draft visual standard for inspection. There is also a need to produce some reference material for C Scan image
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