Sony Corporation

Kengo Kotoo

Kaoru Koike

Hirotaka Yoshioka

Kenta Nojima

Kenta Ikeda

To improve the joining strength between semiconductor chips. In a semiconductor device, a first semiconductor chip includes a first joining surface including a first insulating layer, a plurality of first pads to which a first inner layer circuit insulated by the first insulating layer is electrically connected, and a linear first metal layer arranged on an outside of the plurality of first pads. A second semiconductor chip includes a second joining surface joined to the first joining surface, the second joining surface including a second insulating layer, a plurality of second pads that are arranged in positions facing the first pads and to which a second inner layer circuit insulated by the second insulating layer is electrically connected, and a linear second metal layer arranged in a position facing the first metal layer. A width of the first metal layer and the second metal layer is a width based on a joining strength between the first insulating layer and the second insulating layer and a joining strength between the first metal layer and the second metal layer in an area from an end portion of the first semiconductor chip to the first pad.

Semiconductor device and imaging device

There is provided a solid state image pickup apparatus including a first semiconductor substrate and a second semiconductor substrate which are bonded to each other, and a buried portion formed in a peripheral portion of the apparatus with a depth of a bonded surface of the first semiconductor substrate and the second semiconductor substrate in such a manner that the bonded surface of the first semiconductor substrate and the second semiconductor substrate is not exposed.

Image pickup apparatus, semiconductor device, and electronic device including a buried portion disposed adjacent to a bonding portion, and method for manufacturing the same

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Kumamoto, Japan

Kengo Kotoo