Electronics Forum: mp-100 (Page 1 of 1)

Non-wettig on chip cap.

Electronics Forum | Fri Dec 07 08:32:56 EST 2001 | scottdavies

I have used Multicore MP-100 and Heraeus F380 pastes for a while, and experienced very few dry joint problems. May be worth checking if the pad size and/or spacing are to the correct specification for the components. Check the date codes on the comp

Re: S.P.O.T.T.

Electronics Forum | Wed Jun 12 11:26:50 EDT 2002 | pjc

Sean, Have you contacted Speedline Technologies applications enegineers? They have a lot of knowledge about SPOTT working with customers over the years to develop the process. I myself have experience doing SPOTT. I used Fuji GSP2 printers with overs

FBGA Stencil Apertures

Electronics Forum | Wed Feb 07 09:46:20 EST 2001 | pjc

I need some guidance here. I've got a new board w/ a FBGA-48 package, Samsung CMOS SRAM. It's a full matrix BGA w/ 0.30mm-0.40mm ball diameter @ 0.75mm pitch. Balls are eutectic. PCB land diameter is 0.4mm. There are TSOP I 0.5mm lead pitch component

Gold Contacts

Electronics Forum | Sat Mar 24 00:50:24 EST 2001 | PeteC

Fresh paste from a factory sealed container. Should paste be scrapped out altogether if left on the stencil for too long (length-of-time?)? Our paste is Multicore CR39. Multicore reccomended the print chamber be around 22C @ 50%-60% RH. Our plant is

Immersion Gold over Nickle de-wetting problem

Electronics Forum | Fri Mar 07 05:36:21 EST 2003 | O' Connor

Hi Again, In answer to DaveF - Yes solder is fine where the solder paste is deposited , but the part of the pad visible after pasting is still visible after reflow. Previously the solder paste & all the gold diffused & flowed giving a complete silve

HMP Lead free solder?

Electronics Forum | Wed Aug 31 06:33:04 EDT 2005 | Slaine

if a solder has over 85% lead its classed as RoHS complient because its difficult to achive the same melting point with anything else (298degrees). a few other alloys with a similar range are ; % % 266E266 82.6 Cd 17.4 Zn 271MP 100 Bi 280E2

Entry-Level PnP + BGA?

Electronics Forum | Fri May 04 13:42:11 EDT 2012 | spoiltforchoice

The Manncorp machines are Autotronik machines re-branded. These are Chinese built while pretending to be German, they are seemingly capable enough and do come in at very attractive price points. The FLX from Essemtec is in many ways a slicker machine

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