Electronics Forum | Thu Jul 27 12:49:39 EDT 2006 | SWAG
We use same methods of PCB attachment to carrier as Rob lists. To be more specific on pocket size, we machine our durostone carriers so there is 0.010 inch gap around perimeter of board. This might seem like a lot but (from my experience) you will
Electronics Forum | Tue Dec 05 16:08:41 EST 2006 | dphilbrick
I would suspect if you had a full evaluation done there would be the same issue with Nickel oxidation everywhere. The reason BGA's fall off (or have solder connection issues first) is due to their size. A slight flex in the board has a much larger im
Electronics Forum | Sat Jan 13 19:34:16 EST 2007 | geb
(Its a flex head) I have made a trial program to determine at what point it stops. This is how it goes: I load the program, push the start button it will zero and pick components with head 1. As soon as it finishes placing head 1 parts it halts wher
Electronics Forum | Mon Jan 15 11:12:08 EST 2007 | jaimebc
I've had experienced this issues here with our GSM's Flex heads. Try this: 1.- Clean your linear scales with alcohol and a lint free cloth. Both the X and Y. This one has fixed the majority of our errors when one of the heads just stops for no apare
Electronics Forum | Thu Jan 25 11:55:56 EST 2007 | Cmiller
If you are already getting an Advantis flex placer the AC-30 is a no brainer. It will also be a lot easier to balance the line than with another brand chipshooter. We have a video of ours running at http://www.adltech.com. We have had our first Advan
Electronics Forum | Sun Feb 11 23:32:43 EST 2007 | M.Haris
1. After reflow some boards start producing bumps/bubbles which damage the internal layers causeing PCBs failed in Electrical-testing. How can I eradicate this problem from my assembling process? 2. If SMT components are mounted on non-rigid FLEX PC
Electronics Forum | Thu Feb 15 20:27:11 EST 2007 | vshan
Hi Chris Good Day!!!! well we are running flex panel(150x270) with one connector(3 pin legs both sides) insert. Each panel consists of 28 parts and its used for disk drive industries. We are having a pallet to support with the top cover design such
Electronics Forum | Tue Feb 20 20:40:03 EST 2007 | vshan
Hi Chris Good day!!! could you please let me know what kind of basket yu r using. Currrently we are using 30 by 40cm stainless steel carrier. Top n bottom design with square type. The area of connectors are open so that the water hits the connetor d
Electronics Forum | Thu Apr 05 08:59:43 EDT 2007 | rgduval
Dave, I've seen some instances of solder as you mentioned "painted" over the joint. Almost looks like a seam between the added solder and the originally waved on solder. Typically, I've seen that in the past from an incomplete solder joint. One w
Electronics Forum | Thu Apr 05 09:18:14 EDT 2007 | pjc
Please note that pin holes and blow holes are not always defects. The latest IPC 610A Rev D workmanship standard has them as process indicators- depending on Class. I don't have the document handly while writing this. It would be good to look that up
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