Electronics Forum | Tue Jan 30 09:26:59 EST 2007 | CK Flip
I think most people don't "get" soldering, and advocate the "more-is-better" approach as if solder were duct tape - you know...the more duct tape you put on something the stronger the bond. Such is NOT the case with soldering. People don't "get" that
Electronics Forum | Fri Feb 02 08:36:14 EST 2007 | CK Flip
Wow, I cut first cut my teeth in the Industrial motor control industry. My 1st company made motor control products like variable speed drives, solid state overload relays, soft starts, etc. and in our shop, we used nothing BUT Dow Corning silicone p
Electronics Forum | Mon Jan 29 10:52:57 EST 2007 | jaimebc
You are probably using a GSM since you mentioned "enhanced board setup". 1.- Your CAD data. It works better when all your data uses bottom left of the PCB as a board origin ( BO ). If my CAD does not use bottom left as a BO, then I edit the data in
Electronics Forum | Thu Feb 01 07:06:46 EST 2007 | Sami
thanks to all . I am using GSM Genesis machines. I am also using using a single board without any offset. When I tried to test the first board for a new product, I can see the shiffting in the placement of some components. Yes I know that the default
Electronics Forum | Thu Feb 01 16:33:57 EST 2007 | mika
The reject rate of yours could be a number of reasons. 1. Which component types are rejected? 2. From a particular nozzle? 3. If the rejected part will be dropped on the reject belt or reject bin; it suggests that there is a problem with the componen
Electronics Forum | Mon Jan 29 15:21:56 EST 2007 | flipit
If you teach your feeders, you can no longer gang pick correct? I have never had a dual beam or dual head GSM before. However, if you teach feeders with the fiducial camera and your picks are still off, there is an offset in one or several spindles
Electronics Forum | Mon Jan 29 10:11:12 EST 2007 | muse95
What does your customer want you to do? I would not want a CM soldering one of my boards with leadfree paste if I didn't ask him to. Whatever you do, get approval first. Two things to consider: If the other components are not rated for leadfree tem
Electronics Forum | Wed Jan 31 09:54:52 EST 2007 | FredC
Rob, I am not a Fuji technician, but I have some knowledge on the nozzles, windmills, and headshafts. As far as I know the bore the nozzle travels in should be dry with no lube. The grease on the windmill shaft and locating pin is a special purpose g
Electronics Forum | Tue Jan 30 17:58:49 EST 2007 | flipit
Hi, I would not be too concerned about what the shape of your wirebonding fiducial is. Cross, Square, Diamond, Circle, will all work well for you. I use a "+" and a diamond. Your machine magnification will be great, so don't make the fiducials to
Electronics Forum | Wed Jan 31 17:30:54 EST 2007 | GS
Thanks a lot flipit, I am not directly involved in this "problem" but is my friend that have his CM rejecting PCBs because it says the "+" mark (spokes lengths) are out of tolerances. It seams CM bonder's require tolerance +/- 0,05(? not sure). I d
