| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique of producing resin particles which have high strength and do not break even under large compression deformation. SOLUTION: A process for producing the resin particles comprises heating a raw material liquid containing a radical-polymerizable substance and a polymerization initiator at a temperature not higher than the 10-hour half-life temperature of the polymerization initiator to cure the raw material liquid. The resin particles 30 produced by the process have a strength of at least 1,200 Pa and accordingly does not break even under such large deformation as to render the compression deformation ratio 60% or more. Thus, when joint terminals 43 and 47 are connected with an anisotpropic conductive adhesive film obtained by forming a conductive layer 36 on the surfaces of the resin particles to prepare conductive particles 37 and dispersing the conductive particles 37 into an adhesive material 38, the conductive particles 37 sandwiched between the joint terminals 43 and 47 are largely deformed to increase the contact area between the joint terminals 43 and 47 and the conductive particles 37, reducing the conduction resistance value. COPYRIGHT: (C)2004,JPO&NCIPI
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