| http://www.w3.org/ns/prov#value | - th of the reflector are decreased. [0026] In one embodiment of the present invention, the resin is an epoxy resin whose glass-transition temperature is 40??? C. or more and 100??? C. or less. [0027] According to the above embodiment, good temperature cycling resistance and reflow resistance is obtained since the resin is an epoxy resin whose glass-transition temperature is 40??? C. or more and 100
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