Solid-state image pickup apparatus and image pickup system

摘要

An apparatus according to the present invention in which a first substrate including a photoelectric conversion element and a gate electrode of a transistor, and a second substrate including a peripheral circuit portion are placed upon each other. The first substrate does not include a high-melting-metal compound layer, and the second substrate includes a high-melting-metal compound layer.

主权项

1. A solid-state image pickup apparatus in which a first semiconductor substrate comprising silicon and a second semiconductor substrate comprising silicon are placed upon each other, the first semiconductor substrate being where a photoelectric conversion element and a gate electrode of a transfer transistor for transferring an electric charge from the photoelectric conversion element are disposed, the second semiconductor substrate being where a peripheral circuit portion for reading out a signal based on the electric charge generated at the photoelectric conversion element is disposed,
wherein the second semiconductor substrate is provided with a layer of silicide, and wherein the first semiconductor substrate is not provided with a layer of silicide.