Case Histories of Radiation Curing for Electronic Packaging

Light radiation cure adhesives, coatings and encapsulants are being used in the electronics manufacturing industry with increasing frequency because their properties and process advantages are a good fit for the manufacturing requirements which are demanded by current industry drivers, such as miniaturisation, environmental and health & safety demands,manufacturing yield improvement and total product cost. Light curing adhesive systems in the electronics manufacturing industry have found applications in strain relief, wire and parts tacking, coil terminating, tamper‐proofing, structural bonding, temporary masking, potting, encapsulation, glob topping, conformal coating,and surface mount component attachment. This paper describes three case histories where photo cure adhesives were introduced to an electronics manufacturing environment, and discusses their rationale, implementation and their economics. The case histories encompass printed circuit board assembly (including surface mount), electronics packaging and microelectronic encapsulation. Production managers and process engineers are given confidence that practical adhesive application can be clean, fast and economical.