Electronics Forum: 2002 (Page 153 of 423)

SMT package types

Electronics Forum | Tue Oct 29 11:28:14 EST 2002 | soupatech

Those are a great help for component ID as far as looking at the part and finding the correct name but is there a list of what all those letters mean? It would help me to remember if I could relate it to a real discription.

SMT package types

Electronics Forum | Wed Oct 30 09:37:48 EST 2002 | stepheno

One thing to take note of with the TSOP's is that is a T1 variety and a T2 variety. One has the leads on the sides, the other has leads on the ends. I believe the T1 has the leads on the ends, but I would have to look it up to be sure.

halogen free substrate

Electronics Forum | Tue Oct 29 11:20:17 EST 2002 | nifhail

Guys, Has anyone considered the specific use of Halogen free substrates for enhanced PCB performance? What is the impact on the PCB price ? Pls help.thank you in advance.

Fine Pitch QFP100 Solder Joint - Need Help!

Electronics Forum | Thu Oct 31 09:28:15 EST 2002 | russ

Toe fillets are not required per IPC, you can actually have toe overhang. Russ

Used Equipment Support

Electronics Forum | Wed Oct 30 05:09:28 EST 2002 | mattiasw

Regarding Mydata, that is no problem. You can call the people at Mydata Automation, and get a service contract. As for the others I haven�t got a clue. Regards from Mattias W

Used Equipment Support

Electronics Forum | Wed Oct 30 10:33:10 EST 2002 | larryk

Universal was tough to get support on any used equipment that wasn't sold by their company. This was about 4 years ago. Getting any technical support and part number for spare parts was a nightmare

Handling PCB assy's

Electronics Forum | Wed Oct 30 15:20:30 EST 2002 | Dan

I am wondering what the general concensus is for handling PCB's. Do bare hands pose a problem for PCB assy's? Should operators who handle boards wear gloves? Thanks for your input.

Re-soldering QFP with thermal pads

Electronics Forum | Thu Oct 31 01:52:17 EST 2002 | jason

Anybody with experience on such a rework ?? The QFP has thermal pads underneath the body and needs to be re-connected when subjected for rework... Any ideas ???

Tombstone's

Electronics Forum | Thu Oct 31 12:40:44 EST 2002 | cbarnett

I have a production line that is running ceramic substrate's. The line begins having tombstone's when the outside temperature begins to drop. I have moved our nitrogen tanks to the inside of the building and this done nothing. Does anyone have any id

Tombstone's

Electronics Forum | Thu Oct 31 14:35:19 EST 2002 | russ

You may want to turn the nitrogen off altogether, in searching through the archives it has been stated and proven by many people that this could help a lot. I don't know why it appears to be outside temperature related. Could it be that the PPM le


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