Seiko Instruments Inc

Other

Sumitaka Goto

Yutaka Hayashi

Kazutoshi Ishii

Yoshihide Kanakubo

Shoji Nakanishi

Yasuhiro Moya

Tatsuya Kitta

An image sensor has a semiconductor substrate of a first conductivity type having a photo-detecting surface and a semiconductor region of a second conductivity type disposed under the photo-detecting surface and forming a junction with the semiconductor substrate. A dielectric body is provided in the semiconductor substrate beneath the junction so that a width of the dielectric body in a direction parallel to the photo-detecting surface does not extend beyond a width of the semiconductor region in the direction parallel to the photo-detecting surface. The dielectric body is polarized due to charges forming a depletion region generated by the semiconductor substrate and the semiconductor region. A width of the dielectric body is approximately equal to a width of an inner surface of the depletion in the direction parallel to the photo-detecting surface of the semiconductor substrate.

Image sensor

A floating non-volatile memory has a substrate and source and drain regions disposed in a surface region of the substrate and spaced apart from each other with a channel forming semiconductor region disposed therebetween. A gate insulating film is disposed on the channel forming semiconductor region. A single crystal control region is disposed in the surface region of the substrate and is electrically separated from the channel forming semiconductor region. A control gate insulating film is disposed on the single crystal control region. A floating gate is disposed on the control gate insulating film and is capacitively coupled with the single crystal control region. A chemical-vapor-deposited shield insulating film is formed in a gas atmosphere charge-balanced on the floating gate. A shield conductive film is disposed on the chemical-vapor-deposited shield insulating film and capacitively coupled with the floating gate.

Floating gate non-volatile memory

A thermal head driving integrated circuit may be used to perform an &ldquo;n&rdquo; color or &ldquo;n&rdquo; gradation printing operation with a simplified circuit having a reduced size by employing a single delay element connected to a plurality of resistive heating elements. The integrated circuit has a plurality of drive units each for driving a respective one of the heating elements and each having a drive transistor for driving a respective heating element, one or more delay elements, the number of delay elements being less than &ldquo;n&rdquo;, for supplying delayed print data to the drive transistor, a print data storing unit for storing the print data of each of the &ldquo;n&rdquo; types, and a print data supplying unit for supplying print data stored in the print data storing unit to the &ldquo;n&rdquo; delay elements.

Thermal head driving integrated circuit

Growing community of inventors

Chiba, Japan

Sumitaka Goto