Transcription of SMT Process Qualification: What You Need to Know …
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SMT Process Qualification: What You Need to Know …
ERSA Know-How Transfer Technical Article SMT Process qualification : what You Need to Know Beyond AOI & Co. by Arndt Neues*. This article was published for the first time in the productronic issue 02/01. AOI, X-ray, functional testing all Detectability typical inline testing and inspection Method Good Satisfactory Poor equipment. They allow nearly com- plete monitoring of the production ICT Interruption Too little solder Bent lead Process based on pre-programmed In-Circuit Test Solder bridge Missing component Positioning precision Defective component Fissured joint Entrapped air decision thresholds. One thing is still Component value Cold solder joint done manually, however: the quali- AOI Bent lead Interruption Hidden solder joint fication and improvement of the pro- Automated Placement accuracy Component value Too little solder duction Process .
productronic0201_e.indd 06.08.2001.ne-dy ERSA GmbH Page 2 ting fault phenomena more precisely, this inspection technology must keep pace with the rapid trend towards minia-
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