Electronics Forum: electronic (Page 2479 of 7890)

A BGA reports (RoHS related of course)

Electronics Forum | Mon Feb 12 02:02:25 EST 2007 | lococost

:s I'd be frightened too if I had SAC305 in my balls.

A BGA reports (RoHS related of course)

Electronics Forum | Mon Feb 12 02:17:32 EST 2007 | Wayne

Most of the semi-con is using SAC305 balls. Only the PCB assembly house feels the heat, but semi-con never feels any pressure.

WAVE FLOW SOLDER POT

Electronics Forum | Fri Feb 09 10:35:19 EST 2007 | sundaram

Hello, Changing from Pb to Pb free solder pot takes about 10 hours. is there any easy way to reduce the timing for this process with additional or new equipment.

WAVE FLOW SOLDER POT

Electronics Forum | Fri Feb 09 10:56:26 EST 2007 | realchunks

Sure is. It's called Dual Pot. Most major wave solder manufactureres offer it. The quickest way is to buy a used wave for Pb and keep your existing Pb free wave, Pb free!

Reflow Oven Cp & CpK Test at customer place

Electronics Forum | Sat Feb 10 06:35:42 EST 2007 | Charls

Hi Friends, We would like to know what is the procedure to test Cp & Cpk on Reflow oven at customer place .

Reflow Oven Cp & CpK Test at customer place

Electronics Forum | Mon Feb 12 10:28:49 EST 2007 | davef

CK the Flip Guy You're correct. Some profiler suppliers include a Cp, Cpk calculatoromiter with their very nice units.

Reflow Oven Cp & CpK Test at customer place

Electronics Forum | Mon Feb 12 12:52:48 EST 2007 | stepheniii

Would their calculatoromiters set off my BS detector? It's quite sensitive with things like Cp,Cpk and use of statistics. Or are they actually genuinely usefull?

Reflow Oven Cp & CpK Test at customer place

Electronics Forum | Mon Feb 12 15:32:10 EST 2007 | davef

stepheniii Unsure how they determine that the process is stable and in control, a prerequisite to calculating Cp, Cpk. A trained chimp smoking a cigar could calculate Cp, Cpk.

SMT

Electronics Forum | Sun Feb 11 08:10:10 EST 2007 | davef

You're correct. So, you're thinking about putting the PTH parts on the same side as the SOIC LED, making the top into the bottom, right?

SMT

Electronics Forum | Sun Feb 11 08:44:47 EST 2007 | jerry

No, 50 parts on one side and 4 SOIC leds on the other. The LEDs cannot go through the wave so I need to mask them off or cover them up to protect them during the wave.


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