Patent ID: 8648951

Claim:
A semiconductor module comprising: a back-illuminated type MOS (metal-oxide semiconductor) solid state image sensor chip comprising a substrate having a back surface via which light is received; a wiring layer on a surface of the substrate opposite to the back surface; a first plurality of micro pads on the wiring layer; a signal processing chip adjacent to the wiring layer; and a second plurality of micro pads on the signal processing chip, wherein, the substrate includes at least one photo electric conversion element, each one of said first plurality of micro pads is electrically connected to a corresponding one of the second plurality of micro pads via one of a plurality of micro bumps, a third plurality of micro pads are on a region corresponding to a periphery of the image sensor chip and outside a region of the at least one photo electric conversion element, and the third plurality of micro pads are connected to some of the second plurality of micro pads on the signal processing chip through some of the plurality of micro bumps and are configured to receive signals for driving the at least one photo electric conversion element.