Electronics Forum | Mon Jan 30 11:57:06 EST 2006 | james
We are running under 5% RH. The parts we are having problems with are QFP 208. We have a clean process and right now I am baking 3 boards before they remove the parts and then sending them back to test.
Electronics Forum | Tue Jan 31 02:59:18 EST 2006 | jgarver1
You also should check to make sure you have blow off at the placing station set properly. I have seen machines with the flow control valve shut completely off not release parts properly. The parts end up in the scrap bin and the machine thinks they
Electronics Forum | Wed Mar 08 17:06:55 EST 2006 | Chunks
You will not get a "visible" solder joint on this part. The joint is under the part. If you can magnify the part, you'll see the exposed lead is not plated.
Electronics Forum | Thu Apr 13 02:31:16 EDT 2006 | raqi16
Thank you! sorry, i just realized my posted question was not very specific.. no, it's not a BGA part, it's just a standard surface mount device and the only leaded part are the leads.
Electronics Forum | Tue Jul 18 10:53:36 EDT 2006 | Chunks
Sounds like a part problem. You must use the same broker we do. New parts with bend leads, leaded parts "redipped" to turn lead free. The list goes on....
Electronics Forum | Fri Jul 21 13:42:11 EDT 2006 | Chunks
Paste too thick. Paste not aligned on pad. Part not aligned on pads. Part leads not straight. Oven profile. Paste slump from warm board. Operator before oven thinks they can place IC better than placement machine - so plays IC hockey with part. Oven
Electronics Forum | Tue Sep 12 17:17:47 EDT 2006 | russ
what size part? I will almost guarantee that a 1/4- 20 nut will remove part during reflow if it will fit. Russ
Electronics Forum | Tue Sep 26 16:25:29 EDT 2006 | russ
I seem to be able to buy parts from electgrovert without the "fee" and yes it is used equipment and was not purchased through electrovert. It would be nice to list all these MFGrs that require you to pay them to order parts. I can understand the t
Electronics Forum | Sat Nov 25 11:05:50 EST 2006 | jgarver1
Try Lewis and Clark for test equipment parts. I know they have a large inventory of parts! http://www.lewis-clark.com/ Jared Garver IBE SMT Equipment http://www.ibesmt.com
Electronics Forum | Fri Dec 08 12:13:22 EST 2006 | ganoi
Sure would. We discussed applying the glue on the sides rather bottom of the part. Hopefully the seating of the part during P&P helps push it down. Certainly there will be still some gap as some of the glue will be under the part. Each experiment off
