Canon Kabushiki Kaisha

Tomohisa Ishigami

Makoto Aoki

Noritake Tsuboi

Hajime Shimura

Motoki Tagawa

Hiroto Kondo

Yuya Okada

Yutaka Ishinari

Yu Ogawa

Tomoyasu Soma

A wiring board includes a signal line, a shield member whose main surface extends along the signal line, and a branch line that is electrically connected to the shield member, that includes a leading end that is opened, and that extends in a direction parallel with the main surface of the shield member.

Wiring board, electronic module, and electronic apparatus

A printed circuit board includes a first chip component, a second chip component, and a printed wiring board. The first chip component and the second chip component each has a length L2 in the longitudinal direction. A relationship of 0.894≤L2/L1≤1.120 is satisfied, where L1 represents a length of the first opening in the longitudinal direction. A relationship of 0.894≤L2/L4≤1.120 is satisfied, where length L4 represents a length of the second opening in the longitudinal direction. A relationship of 0.183≤L/L≤0.309 is satisfied, where Lrepresents a length of the first land in the longitudinal direction, and Lrepresents a thickness of solder on an end surface of the first electrode. A relationship of 0.183≤L/L≤0.309 is satisfied, where Lrepresents a length of the second land in the longitudinal direction, and Lrepresents a thickness of solder on an end surface of the second electrode.

Printed circuit board and electronic device

A radiation detection apparatus includes a housing having an incident face and a side face, a reflective member accommodated within the housing, the reflective member having a reflective face which reflects radio waves, and an antenna element accommodated within the housing. The side face of the housing includes a conductor region and a transmissive region, the transmissive region having a higher radio wave transmittance than the conductor region. The reflective member is disposed in a position at which a first radio wave, which proceeds directly from the antenna element toward the transmissive region, and a second radio wave, which reaches the reflective face from the antenna element and is reflected toward the transmissive region by the reflective face, strengthen each other.

Radiation detection apparatus

A communication module includes a first wiring board including a plurality of first signal lines and a first ground line, and a second wiring board including a first layer and a second layer. The first layer includes a plurality of second signal lines. The second layer includes a shielding member. The communication module includes a plurality of first connection members via which the plurality of first signal lines are electrically connected to the plurality of second signal lines, and at least one conductive member provided between the first ground line and the shielding member. The at least one conductive member is provided so as to overlap with at least one second signal line among the plurality of second signal lines as viewed in a direction perpendicular to a main surface of the first wiring board.

Communication module and electronic device

A printed circuit board includes a first chip component, a second chip component, and a printed wiring board. The first chip component and the second chip component each has a length L2 in the longitudinal direction. A relationship of 0.894&#x2264;L2/L1&#x2264;1.120 is satisfied, where L1 represents a length of the first opening in the longitudinal direction. A relationship of 0.894&#x2264;L2/L4&#x2264;1.120 is satisfied, where length L4 represents a length of the second opening in the longitudinal direction. A relationship of 0.183&#x2264;L/L&#x2264;50.309 is satisfied, where Lrepresents a length of the first land in the longitudinal direction, and Lrepresents a thickness of solder on an end surface of the first electrode. A relationship of 0.183&#x2264;L/L&#x2264;0.309 is satisfied, where Lrepresents a length of the second land in the longitudinal direction, and Lrepresents a thickness of solder on an end surface of the second electrode.

A printed circuit board includes a first chip component, a second chip component, and a printed wiring board. The first chip component and the second chip component each has a length L2 in the longitudinal direction. A relationship of 0.894&#x2264;L2/L1&#x2264;1.120 is satisfied, where L1 represents a length of the first opening in the longitudinal direction. A relationship of 0.894&#x2264;L2/L4&#x2264;1.120 is satisfied, where length L4 represents a length of the second opening in the longitudinal direction. A relationship of 0.183&#x2264;L/L&#x2264;0.309 is satisfied, where Lrepresents a length of the first land in the longitudinal direction, and Lrepresents a thickness of solder on an end surface of the first electrode. A relationship of 0.183&#x2264;L/L&#x2264;0.309 is satisfied, where Lrepresents a length of the second land in the longitudinal direction, and Lrepresents a thickness of solder on an end surface of the second electrode.

Growing community of inventors

Kawasaki, Japan

Tomohisa Ishigami