Electronics Forum | Sun Feb 06 07:37:29 EST 2000 | Dave F
Albert: Several points: � Bi should have no effect on your no-clean. The flux you select with your Pb/Sn/Bi wire solder could be an area for concern tho. � Bi will form an alloy with Pb with a melting point of 93�C. � Look at "Process Change - Rya
Electronics Forum | Fri Feb 11 14:11:51 EST 2000 | jseagle
To be more specific we have a single Contact 3AV that can run the board in question in 5 minutes from placing the board into the machine till the time it comes out. Volume is expected to be low initially but expected to pick up. It just doesn't fe
Electronics Forum | Fri Feb 04 11:55:08 EST 2000 | Casimir Budzinski
I am looking for a faster way to trim component leads after wave solder. We now cut by hand, we have a Q-cuter but stoped using it the blades dulled quickly and left flags. we just got a cut and clinch locator and hope this will solve some of are pro
Electronics Forum | Thu Feb 03 16:51:54 EST 2000 | Doug Philbrick
I have used a PDR I.R. machine for BGA repair and I personally liked it. The two big features I liked were no special tooling and it has a IR temp probe that is closed loop and will keep the temp where you programmed it. The vision allignment works w
Electronics Forum | Fri Feb 04 11:26:58 EST 2000 | Lisa Anderson
We are currently using an Air-Vac DRS24 hot air BGA/SMD rework unit. Most of our nozzles are designed to channel the exhaust away from nearby components. This and a minimum keepout of .100" has prevented any issues with secondary reflow of those co
Electronics Forum | Fri Feb 04 13:25:31 EST 2000 | DSK
We are using an A.P.E. Sniper Split Vision System and are very happy with it's ease of operation and capabilities. It uses very low velocity air so we have zero problems with parts being blown off the board. Another reason we went with the Sniper
Electronics Forum | Thu Feb 03 12:17:03 EST 2000 | Doug Philbrick
I am looking for some Process related answers on the above mentioned connectors. Anyone with first hand experince doing PCMCIA cards that can answer questions on attaching the connector to the PWB I would greatly apreciate hearing from you. Please ca
Electronics Forum | Thu Feb 03 07:19:39 EST 2000 | Hany A. Salam
Hello there: Could anyone help: 1- In a double wave wave solder M/C, is possible to completely eliminate the second wave without affecting the quality of the solder joints? 2-From a quality control prespective, what is the minimum accepted length of
Electronics Forum | Thu Feb 03 06:21:57 EST 2000 | Ignacio Simon
I would like to have information about the materials commonly used for laminates of printed circuit boards, their main thermal, mechanical, humidity and electrical characteristics and proper finishing and aplicattions, and advantages/disadvantages be
Electronics Forum | Thu Feb 03 21:20:50 EST 2000 | Dave F
Ignacio: Try: Electronic Packaging & Interconnection Handbook, Harper, (ISBN 0070266948) Printed Circuit Board Materials Handbook Jawitz, MW McGraw-Hill 1997 (ISBN 0070324883) merix.com/resourcecntr/materials/mtl_property_comp.html norplex.com/TD_L
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