Electronics Forum: 300 (Page 7 of 59)

solder stain on gold finguers

Electronics Forum | Fri Feb 23 12:24:59 EST 2001 | traviss

200-300u that�s tinny but I read IPC as saying ANY metal other than gold in the critical contact areas is not acceptable.

Gold coated spring contacts

Electronics Forum | Mon May 07 17:17:09 EDT 2001 | davef

500 insertions � 50 m gold => 300 insertions � 30 m gold => 50 to 75 insertions � 20 m gold => 10 insertions.

Who can recommend a reliable solder volume measurement m/c?

Electronics Forum | Sat Jun 09 06:34:36 EDT 2001 | Eyal Dickerman

Hello Wehave very good results with CyberOptic LSM300 with SPC software (applied..) Eyal

Number of thermal excursions per componet

Electronics Forum | Wed Jun 27 21:05:48 EDT 2001 | davef

BGA Cycle 1: solder ball attach. BGA Cycle 2: BGA attach to board. BGA Cycle 3: BGA removal from board. BGA Cycle 4: BGA pad dress. BGA Cycle 5: BGA ball replacement. BGA Cycle 6: BGA re-attach to board. Board Cycle 1: BGA attach to board. Boar

3D Vision vs 2D vision

Electronics Forum | Tue Jul 10 09:47:39 EDT 2001 | vance66

Has anyone seen any reductions in printing defects due to the use of a Volumetric LSM? What are the pros and cons to Cyberoptics LSM 300?

Re: SMTnet to move to dedicated server at 3:00pm

Electronics Forum | Mon Nov 15 20:26:33 EST 1999 | Clifford Peaslee

Hello SMTneters, The move is complete. The numerical IP address is temporary, until Internic changes the name pointer which should be in a day or two. Web email should not be affected. If you find any problems, please email me. Thanks, Cliff

BENT LEADS ON FINE PITCH

Electronics Forum | Wed Apr 07 16:23:01 EDT 1999 | GREG DENHAM

DOES ANY ONE KNOW HOW I CAN STRAIGHTEN BENT PINS ON A FINE PITCH QFP WITH OUT DAMAGING THE CHIP. AT $300 A CHIP I CAN'T SCRAP THEM.

stencil cleaning

Electronics Forum | Fri Dec 21 06:23:29 EST 2001 | dbrown

We are using a Sabre Max 757, supplied by Invicta UK - see http://www.invictauk.com along with Zestron SD 300. Perfect combo for paste, glue, ink etc etc

High voltage PCB material

Electronics Forum | Fri Apr 19 15:52:31 EDT 2002 | davef

So, what is 'high voltage'? anywho? * We sort of use 10 kV as the starting point for 'high voltage'. * National Electrical Code defines a much lower starting point (300 or 600 V?),

Height paste measurement

Electronics Forum | Mon Jul 29 09:24:30 EDT 2002 | pjc

Its nearly impossibile to get any Gage R&R on systems that require the operator to posisition the board to be measured. For this you need an automatic measurement system. There are many vendors out there in addition to CyberOptics, models SE 200 and


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