Electronics Forum | Fri Feb 20 12:04:29 EST 2009 | markhoch
Okay, after taking an actual minute to think about my suggestion, it has dawned on me that filling a metal cavity with molten solder to make a solder connection is not a good idea. By doing so I wouldn't be giving the metal cavity sufficient time to
Electronics Forum | Wed Feb 25 11:37:01 EST 2015 | jasonnova
We have a customer with an assembly that will require potting using 3M DP-270. There is a component that needs to be covered with potting material but it is considerably higher than the overall potting height of the cavity. The low viscosity of the
Electronics Forum | Tue Nov 10 12:06:59 EST 1998 | Steve Herring
Larry, We place QFP240's all the time with our 2 IP-3's. If you provide your e-mail or fax number, I can send you the PD that we use for our QFP's. Steve | Here is a good one for ya. Our IP3's MTU will not pick QFP240's out of cavities, 10, 12,
Electronics Forum | Thu Nov 12 18:08:38 EST 1998 | Steve Abrahamson
Larry, We once had a problem in which the IPIII would pick on one area of the tray and not on another. It turned out to be the vacuum hose. There was a small crack/cut in the hose, and when the robot (and attached hose) was in a particular positio
Electronics Forum | Thu Nov 12 18:39:10 EST 1998 | Phillipf fHunter
| Here is a good one for ya. Our IP3's MTU will not pick QFP240's out of cavities, 10, 12, 13, 15. This is a 3X8 tray. The listed cavities are also the closed cavities that are used for tray eject. There is plenty of vaccum, the nozzle comes down
Electronics Forum | Tue Jul 20 21:50:46 EDT 2010 | dman97
Does anyone know the correct way to measure the pitch of the cavities between the rows and columns of waffle trays? Everytime that we measure using a caliper, it is always off. Is there a formula to use to determine the exact center of the cavities?
Electronics Forum | Mon Nov 09 11:56:59 EST 1998 | Stefan W.
At least I can imagine what happens and it may solve your problem. If the vacuum is already turned on above the component there will be an airstream above and around the component. This might even suck the air out of the cavity, which supports the co
Electronics Forum | Wed Aug 10 09:01:15 EDT 2005 | fctassembly
Hello Joseph, Sorry for the bad news but microcracking is a well known potential condition occuring with the SAC305 alloy. Microcracking is a condition being seen with many joints soldered with the SAC305 alloy. It is technically a shrinkage cavity
Electronics Forum | Fri Aug 25 01:56:28 EDT 2000 | SMT Tech
Mr. Wilson, Have you considered bulk feeders, some issues with it but it but lees than a 3% loss on 100 placements. Component availability is one thing, getting them in the correct media is another.
Electronics Forum | Fri Feb 22 15:13:29 EST 2002 | rkevin
Check the pick position of the component from the feeder, the feeder advancement speed, the type of feeder tape, static interference, and the cavity tolerance or slope of the carrier tape.
