Electronics Forum | Mon Aug 02 11:16:38 EDT 2010 | sdibuyer
Can anyone recommend a reputable / knowledgeable SMT expert in the Bay Area to work on a contract / consultant basis? 10-20 hours per week for 3 - 6 months. This person will assess solder joint health, drive DOEs to maximize results within existing c
Electronics Forum | Thu Aug 05 11:02:18 EDT 2010 | davef
Corrosion of soldering equipment!!! That would be the least of our concerns. Propyl Bromide has a flash point of 21*C [70*F]. It's not real stable. It's flammable. It's ready to go at room temperature. Have someone else operate those machines an
Electronics Forum | Thu Aug 05 15:48:02 EDT 2010 | markhoch
Okay, I tried searching the fine SMTnet Archives on this and I don't see anything newer than five years old, so I thought I'd try and get a modern take on the Grid Lok, Gel Flex, and Vacunest Board Support Systems. Who is using what, and do l You lik
Electronics Forum | Tue Aug 10 02:29:48 EDT 2010 | haiae
Dear all, I want to buy a low volume high mix SMT Mounter for our design Dept. I have an offer from one supplier one Contact 3AVX machine, but I'm have no experience with this machine. Who use to use this machine please share with me opinion about i
Electronics Forum | Tue Aug 17 18:54:02 EDT 2010 | rob_thomas
Latest and greatest after discussing w colleagues w experience in commercial electronics. According to the 'Printed Circuits Handbook' by Clyde F Coombs JR, the number of "SMT solder rework cycles per component per board is kept to two-three. Beyond
Electronics Forum | Sat Aug 21 02:08:00 EDT 2010 | isd_jwendell
I have noticed that the % metal content in the paste can also be directly correlated to solder balls (less metal, more balls). However, I also found differences between pastes from different manufacturers and the number of solder balls (identical boa
Electronics Forum | Sat Aug 21 15:02:32 EDT 2010 | jry74
I have a pcb with 750 plated through holes that get Holtite sockets inserted into them. I have a method of pressing in 10 sockets at a time. However, when we are done, the board has bad warpage on the X and Y axis. Does anyone out there have any t
Electronics Forum | Thu Sep 02 04:59:17 EDT 2010 | sachu_70
Feeder calibration helps to center the window opening used during component pick-up by a machine nozzle. Once this is established, the next step would be to confirm the centering of Machine nozzle to the center of this feeder window during machine op
Electronics Forum | Thu Sep 02 04:39:36 EDT 2010 | sachu_70
Are we now talking about some "Vintage Collection" cars or the regular ones that do not have much re-sale value? In the former case, it would surely be worth spending on maintenance. However in case of SMT line equipments, one should consider 7-10 y
Electronics Forum | Thu Sep 02 06:22:34 EDT 2010 | sachu_70
Good. This is the right way to profile. Let me ask you, have you anytime soldered QFN componets on your boards? The concept of LGA soldering is similar to that used for a QFN package. QFN soldering also exhibits void formations, and is an inherent pr
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