Electronics Forum: 20-25 (Page 1 of 9)

Voids in solder fillet

Electronics Forum | Thu Apr 17 16:41:37 EDT 2003 | davef

60% 36% of ball area >36% Class2 Accept Reject 45% of ball diameter >45% 20.25% of ball area >20.25% Class3 Accept Reject 30% of ball diameter >30% 09% of ball area >09%

Solder Paste Thickness Measuring Device

Electronics Forum | Thu Mar 18 14:20:25 EST 2004 | pjc

here's another: http://cybertechnologies.com/eng/

smt zener color codes

Electronics Forum | Wed Jun 22 14:20:25 EDT 2005 | mmjm_1099

http://www.crystalradio.net/cal/diodeid.shtml

silicone conformal coat and electrical contacts

Electronics Forum | Mon Jan 29 20:25:24 EST 2007 | davef

We allow no silicone in our shop, because they ruin solderability.

CR Technology 6500

Electronics Forum | Tue Aug 18 21:20:25 EDT 2015 | fishingfool

www.aoi-services.com No affiliation. I think last person servicing these systems.

No Clean flux with more solids

Electronics Forum | Thu Mar 02 11:20:25 EST 2017 | tombstonesmt

Our Senju Sparkle Flux contains 8% solids and is a NC.

bought Quad QSA30, need manual

Electronics Forum | Tue Jul 21 20:25:56 EDT 2020 | eptac

You may contact PPM in Fremont, NH. They sell and service Quad equipment.

Standard for BGA void

Electronics Forum | Mon Oct 21 08:46:15 EDT 2002 | davef

60% 36% of ball area >36% Class2 Accept Reject 45% of ball diameter >45% 20.25% of ball area >20.25% Class3 Accept Reject 30% of ball diameter >30% 09% of ball area >09% II. Missing Ball: This is prohi

BGA assembly and inspection

Electronics Forum | Tue Apr 03 01:37:54 EDT 2001 | philipreyes

60% 36% 0f ball area >36% Class2 Accept Reject 45% of ball diameter >45% 20.25% of ball area >20.25% Class3 Accept

BGA Specifications for IPC Class

Electronics Forum | Wed Feb 02 21:56:11 EST 2005 | davef

Based on X-ray imaging, IPC-7095 standard specifies three categories for void size for BGA solder joints. These categories are based on the percentage of joint cross sectional area occupied by the voided area. Class III Small: Void area is LT 9% Cla

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