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