Printed Circuit Boards FR4 1.6mm 94V0 Solar Panel Rigid PCB Quik Details: Product Name: Solar Panel Rigid PCB Base Material: FR4 Epoxy Resin Bare Board Size: 120mm x155mm Surface Finishing: Leaded HASL PCB Material Flamming rate: 94
Electronics Forum | Fri Jun 07 05:08:08 EDT 2019 | gregoryyork
Does look like delam, if its that bad and the board looks like its HASL finish or Silver, it could also be porous absorbing the chemistries of HASL or Nitric from the Silver which will greatly encourage ECM or poor SIR figures or just simply eat the
Electronics Forum | Fri Jun 07 10:46:16 EDT 2019 | gregoryyork
The Single Solder ball stuck to the mask may indicate undercured as well. The issue is not so much the mild No Clean flux but the potentially major active HASL flux or Silver Process chemistries causing issues. This has been through flow solder hasnt
Industry News | 2008-04-07 20:17:14.0
ITASCA, IL � February 29, 2008 � Kester announces it will showcase EnviroMark 923 (EM923), a halogen-free, RoHS Compliant lead-free no-clean solder paste, in booth 2C04 at the upcoming NEPCON China/EMT China 2008 exhibition and conference -scheduled to take place April 8-11, 2008 in Shanghai, PR China.
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