test report

Qualification samples for solder resist
Niedernhall with surface finish ENIG
T E S T RE PORT
Product test by the laboratory of WE
Evaluation Topic
Target
Actual Value
Liability solder resist – cross cutting test according ISO 2409
0 – 1
0 – 1
Subsurface migration in µm
< 0,5
0
Stray deposition
none
none
Discoloration
none
none
Missing pads
none
none
Imperfections
none
none
Water stains
none
none
Bridge width in µm
75 – 90
81
Milling edge
without cavities
without cavities
Solder balls attachment
no solder bumps
no solder bumps
no cracks
no cracks
Target
Actual Value
Soldering stress 288 °C 20sec
Customer tests
Evaluation Topic
Contrast / readability of laser marked DMC
readable without traces of powder
Customer specific tests (abrasion resistance, e.g.)
Red marked areas:
„„ Test area cross cutting test
„„ Test area laser marked DMC
„„ Test area abrasion resistance
Additional information:
„„ Including UL-marking
„„ Manufacturer of solder resist: Peters
Würth Elektronik GmbH & Co. KG
Salzstraße 21
74676 Niedernhall · Germany
Phone +49 7940 946-0
Fax +49 7940 946-550000
[email protected]
www.we-online.com
DIENECKARPRINZEN 0915.FLY
„„ Solder resist type: Elpemer AS 2467 SM