Electronics Forum | Tue Feb 01 11:54:14 EST 2005 | TomA
Indy, I found the same findings as you. The claim is that the solder joint may actually look closer to a SnPb solder joint then the SAC alloys. I had commited to the SAC alloys at SMT before finding out about the SN100C alloy. I'm interested in what
Electronics Forum | Wed Apr 06 04:19:52 EDT 2011 | grahamcooper22
Almit are specialists in formulating fluxes for pastes and wires for the very very demanding Japanese assembly market. And the key to good SMT is how the flux performs...and our formulation improvements are driven by requests from the companies who a
Electronics Forum | Tue Feb 01 09:21:36 EST 2005 | TomA
I looked breafly at this alloy. My concern was that I had already implemented a SAC 305 alloy at SMT. So any of my mixed technology projects would one alloy (SAC 305) on one side (topside) and a different alloy (SN100C) on the bottomside. Most articl
Electronics Forum | Mon Aug 31 17:31:52 EDT 1998 | Scott McKee
| We do have plans to have users register themselves in order to post messages. People can still read, but cannot post without setting up a "user profile". I will make it short, so users can be up and running in 5 minutes. The profile will have priva
Electronics Forum | Tue Feb 01 12:43:39 EST 2005 | jbrower
Hi Scott, My Heller is a bog standard Heller 1500 with an edge guide. There is nothing special about it. I would of course love to have a 7 zone oven, but...I have to use what is here at this time. My only concern with a 5 zone oven is the change i
Electronics Forum | Sun Apr 25 11:30:12 EDT 1999 | Earl Moon
| Hello all, | | Our guys here still have some questions on the "optimized" profile which sees a more moderate ramp up straight to reflow temperatures versus the conventional profile which has a plateau at around 150 Celsius. If the optimized profi
Electronics Forum | Sun Oct 31 19:39:26 EST 1999 | Pat Copeland
Parts are falling off on first side when reflowing second side, have tried changing temp profiles, and ended up using tin foil. any recomendations.
Electronics Forum | Wed Jun 03 10:25:49 EDT 1998 | Justin Medernach
| Can anyone tell me if there is a reference for smt component height specs on the bottom side of a board, which will also go through wave soldering. A current design I am reviewing has tant caps(7343) and a crystal on the back side. Should I only b
Electronics Forum | Wed Nov 17 15:04:27 EST 2004 | russ
SMT assembly, First, you must utilize paste otherwise the parts will not stay put. Do you have any leaded devices such as QFPs or SOICs? Dispensing paste by hand is very difficult and time consuming for these types of parts. You can either dispense
Electronics Forum | Wed May 03 20:24:22 EDT 2000 | Dave F
MF: I know of nothing that addresses your question directly. Let me suggest: * Technical types at your solder supplier should be able to help. * "Effect Of Intermetallic Compounds On The Thermal Fatigue Of Surface Mount Solder Joints" PL Tu, et a
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