H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 1/02 (2006.01) G02B 6/42 (2006.01) H01L 27/14 (2006.01) H05K 1/18 (2006.01) H05K 1/00 (2006.01) H05K 1/11 (2006.01) H05K 3/00 (2006.01) H05K 3/30 (2006.01) H05K 3/34 (2006.01)
Patent
CA 2161915
It is an object of the present invention to provide a highly reliable optical module circuit board having a sufficient mechanical strength with respect to an external stress. An optical module circuit board according to the present invention includes a flexible printed circuit having at least a multilayered structure in which a layer containing a conductive metal interconnection. is sandwiched between insulating layers, wherein the flexible printed circuit includes a main body portion having the multilayered structure, a first surface mounted with an electronic component, and a second surface opposite to the first surface, a neck portion having the multilayered structure and extending from one end of the main body portion, and a head portion positioned at a distal end of the neck portion extending from the one end of the main body portion, having the multilayered structure, and mounted with an optical operation element and a bypass capacitor. Particularly, the neck portion defines the positional relationship between the main body portion and the head portion so as to give the circuit board a sufficient mechanical strength.
Kurashima Hiromi
Ohe Satoshi
Sakamoto Ryoji
Sawada Sosaku
Sekiguchi Takeshi
Marks & Clerk
Sumitomo Electric Industries Ltd.
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