Statistical Inspection of a Workplace for Adhesive Assembly

Quality of a workplace for adhesive assembly has been examined using acceptance sampling. The goal of the work has been to find our whether dispensing of electrically conductive adhesive makes forming of adhesive joints with sufficient reliability and repeatability possible. Adhesive joints have been fabricated by adhesive assembly of jumpers. Four types of adhesives, one of an acrylate type and three of an epoxy type with Ag filler have been used for testing. Joints resistances have been measured by a four-point method. Acceptance sampling by attributes has been used for statistical inspection. Acceptance plan has been calculated. It has been found that the workplace does not give results with sufficient quality.