Electronics Forum | Tue Dec 10 09:56:09 EST 2019 | charliedci
Have been looking for rental/lease of above calibrator in US. Companies we have contacted are: Transcat, TRS, BHD, ATE, Electrorent, Techrentals, Vantage with none available. We have 2, one is out for repair. We will be purchasing another but 4 week
Electronics Forum | Wed Dec 11 12:07:33 EST 2019 | scotceltic
Our company has a spec on their current PCB dwg to make sure the fab house meets a specific thickness (min-max). The current spec reads: 13.5um min - 38.5um max. I assume it is to keep the board house honest and to make sure there is no exposed co
Electronics Forum | Thu Dec 12 17:39:14 EST 2019 | davef
When I hear "pinholes" in solder connections, I think of two sources, depending on the situation, which can be either: + Entrapped air and process chemicals develop during reflow soldering to cause the pinholes in and around the intermetallic layer
Electronics Forum | Thu Dec 12 17:48:21 EST 2019 | davef
You proved that the standard solderability test of components may be effective for assessing aged components. Curious Minds Can you get the authorization to use a more aggressive flux? Will that flux solve the problem? What's it going to cost to qu
Electronics Forum | Fri Dec 13 12:29:01 EST 2019 | davef
I'm not conversant in the topic, but I know suppliers to the government are concerned as you are. I have attended sessions on the topic at technical conferences. The topic that you want to search for is long-term storage protocols for electronic comp
Electronics Forum | Tue Dec 17 05:58:36 EST 2019 | robl
We had a customer who used XRF to determine the thickness of the "tinned" layer of components - sort of what is briefly mentioned in Bob Klenke's SMTA paper - http://www.circuitinsight.com/pdf/Solderability_Testing_Protocols_Component_Re-Tinning_Me
Electronics Forum | Thu Dec 12 09:46:34 EST 2019 | pavel_murtishev
Hello, Could you please tell me how you define a defect to be a mass one? What is a criterion? Numbers? How to distinguish between a set of simple defects and a mass defect? What metrics you use? Any input would be appreciated. Thank you in advanc
Electronics Forum | Wed Dec 18 09:45:09 EST 2019 | kylehunter
I'm not sure if I follow? Was there sarcasm? We are in Florida. We currently use a purex filtration unit. The issue is that it pumps out so much hot air that it heats up our space too much. Everyone I've talked to vents outdoors who live down here,
Electronics Forum | Fri Dec 27 11:47:07 EST 2019 | slthomas
"We would need like a 8" diameter duct for 300cfm, which for exhaust purposes, is dead wrong" If you have 2 4" exhaust ports on your oven (some do, some don't), an 8" or larger main trunk might be justifiable, especially if you have another machine
Electronics Forum | Mon Jan 06 12:13:55 EST 2020 | emeto
Kyleh04, I worked for one place that used the vent inside the building. You end up with a lot of heat, smell and increased number if defects(because of the heat in the building). Based on the debit of your machines you can can combine them and use a
