Electronics Forum: index (Page 1376 of 7904)

SERA and ROSA

Electronics Forum | Fri Nov 05 16:00:22 EST 1999 | Jeff Kennedy

Anyone have information on the ROSA Technique? It is a derivative of the SERA analysis for solder-ability on pads, (they are not italian sisters)I belive the techniques were developed by Rockwell and Motorola. thanks in advance. JKK

Re: SERA and ROSA

Electronics Forum | Mon Nov 08 14:18:10 EST 1999 | John Thorup

Reduced Oxide Soldering Activation is an electrochemical method of restoring the solderability of surfaces. Searching the archives of IPC technet and this forum will reveal more details. John Thorup

Alloy melting Points

Electronics Forum | Fri Nov 05 15:27:30 EST 1999 | Brian

What is the liquidous temp for: 95Sn/5Ag and 96.5Sn/3.5Ag thanks in advance

Re: Alloy melting Points

Electronics Forum | Fri Nov 05 15:44:50 EST 1999 | Tim Jensen

Brian, 96.5Sn/3.5Ag is eutectic at 221 C 95Sn/5Ag has a melting range of 221 - 240 C Hope that helps you out...

Re: Alloy melting Points

Electronics Forum | Fri Nov 05 18:14:35 EST 1999 | Jeff Sanchez

Hi Brian, Here is the web address for Indium. If you go to the "technical papers" and then to "specialty solders and alloys" they have a really great chart that has all the alloy specs. Well worth printing. ........Jeff Sanchez

Re: Alloy melting Points, This one has it

Electronics Forum | Fri Nov 05 18:18:08 EST 1999 | Jeff Sanchez

Hi Brian, Here is the web address for Indium. If you go to the "technical papers" and then to "specialty solders and alloys" they have a really great chart that has all the alloy specs. Well worth printing. ........Jeff Sanchez

Re: Bare PWB bake out during circuit assembly

Electronics Forum | Mon Nov 08 11:11:16 EST 1999 | John Thorup

Believe it! Although it might be necessary in certain rare cases, and as Ray says, as a bandaid, to routinely bake your boards is a mistake. For much more info, search the IPC technet archives over the last few weeks. It was a popular thread

Re: Bare PWB bake out during circuit assembly

Electronics Forum | Wed Nov 10 09:42:05 EST 1999 | Boca

Generic fabs should not require baking. Some special cases like teflon and flex circuits take moisture very well, they often continue to require a trip to the oven. Best wishes, Boca

Re: Flux tanks

Electronics Forum | Fri Nov 05 13:15:45 EST 1999 | John Thorup

Hi Rich It couldn't be simpler. www.binks.com Their main products are for paint and chemical spraying so it is likely that you will find a stock item that fulfills your need. good luck John Thorup

SMT Packages

Electronics Forum | Thu Nov 04 14:56:47 EST 1999 | Ricardo

Could anyone help me to find any info about "Chip Scale Package" and "NIC Chips". I need some pictures or drawings and measures. Thanks


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