Electronics Forum | Mon Feb 28 16:47:26 EST 2005 | jdengler
John, No vacuum. I use tape to hold the flex flat. Panels are hard. Some flexes I do 3 up some 1 up. Larger components that I can get a repeatable location of the flex are 3 up. 0805 and smaller are 1 up always. I talked to a flex house once a
Electronics Forum | Tue Mar 01 10:31:26 EST 2005 | Greg
QC --> Touch-up --> QC --> Assembly After SMT all PWB goes to QC, QC Inspects and marks all that needs rework then PWB's goes to Touch-up to fix what QC marked for rework. After that All reworked boards goes to QC for another verification and stampi
Electronics Forum | Tue Dec 06 18:29:45 EST 2005 | darby
You may also wish to check the speed controllers for both descent and ascent. The higher the ascent speed the more force the jaws close with. It can be difficult to achieve a "good" nozzle placement height as this is mechanically set and your lowest
Electronics Forum | Fri Mar 31 11:46:57 EST 2006 | fastek
Larry- I notice most of your posts either start out or end up like ......."I don't know anything about this, but there was a guy that worked here and he told me"...... WTF? You're not bringing anything to the table when you make judgements/opinion
Electronics Forum | Fri Sep 01 15:28:42 EDT 2006 | Hussman
H ilarious. E ven tho I don't come here much, it's the same old thing. R eplayed questions, answered by self righteous people. B ut several people told me to check out this thread. P erhaps they are right. A lthough it�s the same old people banterin
Electronics Forum | Mon Oct 02 21:36:03 EDT 2006 | davef
All of us wave solder FR4 all day-long, not to say we have never had problems doing it. The selection of the laminate material should depend on the burnin application. We'd be concerned about a FR4 burnin board that saw GT 150*C for extended period
Electronics Forum | Thu Oct 05 20:48:06 EDT 2006 | darby
We run Dek ELAs and MPM UP1500, Everyone here prefers the Deks. Set up, software, maintenance, operation etc. There's not a lot in it - the guys just prefer the Deks. However we are an OEM and so get control on board design, finish, fiducials etc. So
Electronics Forum | Tue Jan 02 14:15:59 EST 2007 | realchunks
I have a new customer that has a print calling for 2oz. copper finish for top and bottom layers, and 1oz. copper finish for the inner 6 layers. Now, they also have a stack up depicting each layer and thickness. It shows the outer layers of copper b
Electronics Forum | Wed Jan 24 22:38:45 EST 2007 | electrovert
Hello, My first time post up here. I have a problem with thermo runaway on upper zone #5 on the Omni 10 Electrovert. We changed the thermocouple #5 but the problem came back up. We swapped Sensoray board 8 and 9, swapped board #3 (T/C interface boar
Electronics Forum | Tue Apr 03 03:31:51 EDT 2007 | chrissieneale
Apparently because the machines are old and prone to break down they do all the printing for the day (maybe 6/7 different board types) up front. This doesn't make any sense to me - if the machine is going to break down, the machine is going to brea
