Electronics Forum | Tue Mar 09 18:30:57 EST 2004 | Robert
If you need tray dimensions, try this: http://www.devicecare.com/Default.asp?Page=Jedec You should be able to find just about any tray spec there. Finding actual trays to accomodate your part is another story. I have a box of empty trays that I don
Electronics Forum | Wed Mar 10 15:09:34 EST 2004 | Jay
You can say "re-flow". It's related with the process. In order to assemble a PC Board containing lots of components such as PTH (Plated Through Hole) and SMT, usually, PTH type packages and components are soldered first using wave soldering process.
Electronics Forum | Sat Mar 20 06:18:58 EST 2004 | agp
I haven't heard of anybody yet who have done smt and reflow after thruhole and solder wave. Thru hole components usually have low resistence to heat and could easily burn when subjected to the 210deg-245deg.C reflow temperature. For pc boards with co
Electronics Forum | Sat Mar 20 08:54:28 EST 2004 | Primus
As I said, I'm new, and I've never seen the adhesive dot method. I'm certian our company will stick with paste, though, because we make our own boards (with a vertical plater no less!!!) and contamination is quite an issue. We do a fair amount of rew
Electronics Forum | Wed Mar 10 08:08:49 EST 2004 | paul_bmc
I am having issues with a CS-400E that I thought I might ask if anyone has any suggestions. The machine may run fine for a while then out of the blue the cutters stop responding or start responding erratically, you have to hit the esc key after ever
Electronics Forum | Wed Mar 10 14:05:29 EST 2004 | dougt
The 400E has a computer on the bottom of the cabinet with a a Serial/Keyboard Card installed in it. J1 pins 19/20 are the cutters transmit/receive lines on this card, they go through a transition brd and on to the Cutter/Processor brd on the side do
Electronics Forum | Fri Mar 12 11:53:47 EST 2004 | Dreamsniper
Thanks Dave...it's such a good site for reworking BGA's (reballing). But what about when it comes to re-attaching the BGA onto the PCB? We are using Flextac Stencils but I found out that the apertures of their stencil is bigger than our pads for the
Electronics Forum | Thu Mar 18 15:42:41 EST 2004 | davef
When it comes to re-attaching the BGA onto the PCB, we don't those very nice mini-stencils. They are very nice though. On sources for your rework stencils, try your stencil fabricator will be happy to make those very nice things for you. What's wr
Electronics Forum | Thu Mar 11 12:05:22 EST 2004 | russ
the ones we use have a temp adjust/control. To answer reflowing adjacent components we reflow them during the rework. However if we do not want to reflow we either change the tip on the gun to a more localized area or we apply temporary mask to pre
Electronics Forum | Thu Mar 11 12:11:02 EST 2004 | russ
Jon, one other option. Metcal makes tips for the MX stations that are for removing All sorts of Ic components. They are custom sized for each QFP size. If you have the MX stations this is a great way to go. These tips only heat the leads and par
