Shimadzu Corporation

Hispec Goushi Kaisha

Tohoku University

Link Research Corporation

Hideki Mutoh

Takeharu Etoh

Shigetoshi Sugawa

Kenji Takubo

Yasushi Kondo

Hideki Tominaga

Ryuta Hirose

A floating diffusion region is formed at an edge of a light-receiving surface of an embedded photodiode, with a transfer gate electrode located therebetween. A first region, with radially extending portions centered on the FD region, and a second region, located to the outside of the first region, are created in the substantially sector-shaped light-receiving surface. A dopant whose conductivity type is the same as the signal charges to be collected in the first region are introduced, whereby an electric field for moving the signal charges from the radially extending sections towards the center is created due to a three-dimensional field effect. As a result, the charge-transfer time is reduced. Additionally, since a circuit element in the subsequent stage can be placed adjacent to the floating diffusion region, the parasitic capacitance of the floating diffusion region can be reduced and a highly sensitive element can be obtained.

Solid-state image sensor

A fast imaging devicehas a charge signal converter, a charge signal accumulatorand a charge signal transporter. A charge signal accumulatoris provided to each charge signal converter. A charge signal accumulatorextends linearly while inclining with respect to a line Lconnecting charge signal converter. The other end of a charge signal accumulator, connected at one end thereof to a charge signal converterconstituting a corresponding column, merges to a charge signal transporter. This construction reduces noise and increases a frame rate.

Fast imaging device and fast photographing device

A high-speed image sensor has a plurality of signal converting means () for generating electric signals corresponding to an incident light intensity and a plurality of electric signal recording means () for recording electric signals output from corresponding signal converting means (). The electric signal recording means () is linearly shaped and has a read-out line () for each of longitudinal sections thereof. The read-out line () is used for directly reading out the electric signals out of a light receptive area.

High-speed imaging device

Growing community of inventors

Odawara, Japan

Hideki Mutoh