Electronics Forum | Tue Aug 28 08:28:30 EDT 2012 | rgduval
We agree with all of the previous comments, and would add the following: Warpage is generally caused by excess moisture in the raw boards. Have you tried baking the boards prior to assembly? We had this issue on a simple 4-layer board, and found t
Electronics Forum | Mon Aug 27 22:16:03 EDT 2012 | ilanhovan
Hi, my supplier is using the same Aqueous machine to clean the boards for 2 different customers. My product uses the chemistry of leaded clean flux meanwhile the other product uses the chemistry of lead free with no clean flux, however that product r
Electronics Forum | Fri Aug 31 13:51:33 EDT 2012 | joeherz
First off - There should be no issue with washing your OA/water soluble boards with the other customer's no clean units provided that the recipe being used has been validated to effectively clean each product. If your supplier is using a batch syste
Electronics Forum | Thu Aug 30 13:02:37 EDT 2012 | rway
This may have been asked, but what ESD protection does your facility already have? With proper techniques and equipment, this should be a non-issue. As long as folks aren't using the pcb's to comb through their hair, you don't have to worry about i
Electronics Forum | Thu Aug 30 13:26:40 EDT 2012 | joeherz
Appreciate all the replies. We have a good system in place with ESD tile floor, grounded systems/benches/etc and heel and wrist strap usage and monitoring. Good training program as well. We've recently upgraded to the 2007 version of the ANSI 20.2
Electronics Forum | Thu Aug 30 18:51:39 EDT 2012 | kahrpr
My first question is how many failures have you seen due to hair length I will bet zero. So upsetting your employees for something that will not reduce your failure rate by one board is pointless. However someone mentioned hair in the process that i
Electronics Forum | Thu Aug 30 22:44:05 EDT 2012 | rway
I'm not saying that any unexplained failure is caused by ESD and I certainly am not promoting fear. I sleep very well at night (except after eating Mexican food, which can cause discharges as well). What I am saying is that ESD is a real threat and
Electronics Forum | Thu Aug 30 20:35:51 EDT 2012 | davef
A common bottomside heater configuration is IR-Convection-Convection. One of the big advantages of the IR zone is its ability to allow the flux carrier to spread and dry slowly before the board reaches the convections zones, which can blow wet flux c
Electronics Forum | Fri Sep 07 04:25:52 EDT 2012 | grahamcooper22
As soon as the oven temp falls below 40 C and the RH rises above 5% then you need to consider that the floor clock will start. Long term storage of devices in an oven is not good for them as it reduced their solderability and can affect their perform
Electronics Forum | Sat Jun 15 21:16:44 EDT 2013 | Mike Konrad
The ICOM 5000 was made by Trek Industries. The company was purchased by Stoelting. I don't think they make or support these machines anymore. By the way, the correct formula for area is Length X Width X 2 (X 1.3 or 1.5 based on component geography)
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