CPC B81B 7/0061 (2013.01) [H05K 1/181 (2013.01); H05K 5/0213 (2013.01); H05K 5/03 (2013.01); B81B 2201/0257 (2013.01); B81B 2207/09 (2013.01); G01D 11/245 (2013.01)] | 11 Claims |
1. A cover member for an electronic device comprising:
a through hole extending between a first surface and a second surface; and
a plurality of long particles that are present in at least one inner wall facing the through hole and whose longitudinal direction is along a through axis of the through hole in a cross section including the through axis.
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