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Electronics Forum: forums/index.cfm (Page 4470 of 7894)

Waffle Tray Handling and Storage

Electronics Forum | Fri Feb 23 08:28:11 EST 2007 | James

I just wanted to know if anyone stores their vacuum sealed bags on their sides instead of flat. We are trying to save room, but I dont want to create defects either. The ones we have are tightly vacuum sealed and would like to store on their sides

Reflowing BGA's 2x on a double sided board

Electronics Forum | Thu Mar 01 00:27:58 EST 2007 | Muhammad Haris

Hi, I believe ,do the BGA side first and then use glue from dispensor for the connector side. THIS CONDITION CAN BE FOLLOWED IF & ONLY IF UR CONNECTORS DO NOT BURN OR LOOSE THEIR PHYSICAL STATES. OR SIMPLY REDESIGN THE

Reflowing BGA's 2x on a double sided board

Electronics Forum | Thu Mar 01 00:29:08 EST 2007 | Muhammad Haris

Hi, I believe ,do the BGA side first and then use glue from dispensor for the connector side. THIS CONDITION CAN BE FOLLOWED IF & ONLY IF UR CONNECTORS DO NOT BURN OR LOOSE THEIR PHYSICAL STATES. OR SIMPLY REDESIGN THE

Reflowing BGA's 2x on a double sided board

Electronics Forum | Thu Mar 01 12:40:55 EST 2007 | james

We are using lead paste on both sides, the only reason we need to change the profile is because the BGA is lead free. I decided to run the BGA side first, then the connector side. This way I am not running both sides through on a hotter profile.

Reflowing BGA's 2x on a double sided board

Electronics Forum | Fri Mar 02 14:43:28 EST 2007 | stimpk

Are you using lead free paste also? Are all the other parts on side 1 ROHOS ? etc.. can they handle your leadfree profile. Those need answered 1st. But to answer your question. Yes you can run the BGA side 1st ( hopefully with leadfree paste and ho

DI cleaner (washer) bath temperature

Electronics Forum | Mon Feb 26 19:05:32 EST 2007 | KEN

Is there a typical DI cleaner (washer) bath/ spray temperature? (In-line cleaner) Is there a maximum temperature? I know some parts do tend to have issues like TH electrolytic jackets shrinking. But is there any situations to be aware of? Bacteri

DI cleaner (washer) bath temperature

Electronics Forum | Tue Feb 27 07:41:15 EST 2007 | realchunks

Depending on your D.I. system, your maximum temperature concern may be at what temperture it returns to your D.I. system. Hot water may foul you set-up very quickly. As for maximum tempertures for parts, your biggest concern should be drier section

Clearance between Through hole and chip component

Electronics Forum | Wed Feb 28 11:43:20 EST 2007 | realchunks

Marcin, Think outside the box. If you are glueing the SMT part down, why not have an aperture cut in your stencil (or recut a stencil) between the SMT part and thru-hole. Wave solder hates SMT glue. This will get rid of your solder short problem

CSM84 doorway ?

Electronics Forum | Wed Feb 28 17:00:35 EST 2007 | jasont

Dimensions (L X W x H): 1650 x 1302 x 1820mm (5.4 x 4.27 x 6ft) Weight: 700 kg (1543 lb). from manual of CMS 84vz. If you do not get the one on ebay, let me know if you are interested in the one I have in Canada.

CSM84 doorway ?

Electronics Forum | Mon Mar 05 13:25:45 EST 2007 | jmelson

I will have to rent a forklift to get it off the truck. If I don't cut the wall first, then the machine sits in the garage while the rental is ticking away at $200+ a day. Also, moving it twice doubles the possibility of a catastrophe. I've got so


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