Electronics Forum: date code (Page 1 of 13)

ENIG PCB date code 2012

Electronics Forum | Mon Jul 13 06:02:08 EDT 2015 | piyakorn

Hi All Some our customer has a new order but has been stopped long time ago (2012) which ENIG PCB in our raw material stock that are date code xx12 (still be vacuum sealed with silica gel) so,Will there be any risk or not? Help me please. Than

ENIG PCB date code 2012

Electronics Forum | Fri Jul 24 16:33:45 EDT 2015 | cnotebaert

You should be fine! best practice for a situation like this would be to run a solder sample, either flux it and run through wave, or screen print, don't place parts and run through reflow. look for proper wetting characteristics if you see de-wetting

BGA Voids

Electronics Forum | Fri May 21 15:36:54 EDT 2010 | pforister

Erli, Thanks for your feedback. The BGA hybrids were baked before production. I had a particular date code that we dis-continued using. This date code was consistently voiding near or above 25%. The other date codes still produced voiding on ave

Product Traveler

Electronics Forum | Fri Apr 08 09:33:32 EDT 2005 | Dave G

We put the following on our travelers: Finished Assembly Part # Date Started (@ Bottom SMT) Date Finished (@ Top SMT) SMT Inspection -- Just a checkbox Postwave Inspection -- Just a Checkbox Board Wash -- Just a Checkbox Solderpaste Date Code & Type

Shelf Life of Components (solderability)

Electronics Forum | Tue Feb 15 21:27:18 EST 2005 | davef

Component shelf life depends on: * Solderability protection type. * Quality of process and materials used in applying solderability protection. * Duration of time from when the solderability protection was applied. * Packaging used in component stor

Re: AOI recommendations

Electronics Forum | Fri Oct 06 10:59:02 EDT 2000 | Peter loten

the IRSI may well be quicker on your first board, but the CR6520 will be quicker once you've built up a raesonable component library. Don't forget - you may have to re-programme the IRSI every timeyou have small component changes such as date codes

Re: Can't identify a part

Electronics Forum | Thu May 25 22:03:34 EDT 2000 | Dave F

2 for the oscillator and two for the control line. How about this: the "9951" may be a date code for the fifty first week of 1999. Good luck Dave F

PCB baking for moisture outlet....

Electronics Forum | Mon Dec 31 05:14:58 EST 2001 | ronih

Hello, Are there any rules for PCB drying (baking) before assembly; Date code criteria, finish process on PCB, storage conditions.. ect. I know some assemblers that are baking all PCB (not ENTEK!) as default before assembly, is it realy nessesary? i

Solder Balls

Electronics Forum | Mon May 20 16:56:24 EDT 2002 | Gary

Excess slump of paste and mis-registration can cause solder balls along with moisture. Use same date code of pcb and run with no components, paste only. Also pre-bake boards with humidity sensor in oven. If high humidity, moisture and solvent residue

Identification Lead-Free product

Electronics Forum | Tue Feb 22 10:32:10 EST 2005 | ptavernier

How do you identifie your future products ? By part-numbers or date code ? Add a letter ? Add labels ? Thank's for your response.

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