Hitachi, Ltd.

Hiroyuki Hayashi

Naomi Nomura

Seiji Inaba

Kazuhiro Oda

Tokinori Furuichi

Yuji Hirai

Gohshi Jin

Hideo Aoki

Yusuke Nonaka

Satoshi Sakai

Tomohiro Saito

Takayuki Oshima

Kazuhiko Ono

Tomoyasu Furukawa

Shinya Sugino

Tadashi Tanase

Shigehiko Takeshita

In a solid-state image sensor device, the efficiency of light collection to a light-receiving region of a photodiode PD through a microlens is enhanced by arranging a wiring line configuration. Each of the first metal layer and the second metal layer is arranged to have a ring-like portion formed along a profile of the light-receiving region of the photodiode PD in a fashion that an upper position over the photodiode PD is surrounded by the first and second metal layers and a third metal layer.

Solid-state image sensor device

An object of the present invention is to prevent formation of a badly situated via metal in a Damascene wiring portion in multiple layers having an air-gap structure. In the present invention, a via is completely separated from an air-gapby forming an interlayer insulating filmhaving the air-gapbetween adjacent Damascene wiring portions after forming a sacrifice film pillarfrom a selectively removable insulating film in a formation region of a connection hole. The present invention can provide multiple-layered buried wiring in which a high reliable via connection and a reduced parasitic capacitance due to the air-gap are achieved.

Process for producing semiconductor integrated circuit device

The present invention provides a single information recording and reproducing apparatus that is used to record data to multiple disks that are to be recorded on using different wavelengths. More specifically, the present invention provides an apparatus that accurately discriminates disk types while preventing disk damage and accidental recording of data during the disk type discrimination operation. The disk type is determined using the intensity of light reflected from the disk. Information is encoded using an encoder corresponding to the disk type. The resulting signal is used to drive a laser corresponding to the disk type, and information is recorded.

Information recording and reproducing apparatus and disk discrimination method thereof

In a CD-ROM disk reproducing device, for a data read instruction which specifies an address issued frequently from a host computer, irrespective of whether the device has a Lock Cache function, the time required from receipt of a data read instruction up to the actual data transfer is reduced. The data read instruction which specifies an address issued frequently from the host computer is discriminated by a microcomputer constituting a control section in the device and the read data from the address is locked in a storage section (buffer RAM) so as not to be erased. When a data read instruction specifying the same address is received afterward, data is read out directly from the storage section and transferred to the host computer.

Record medium reproducing device

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Ome, Japan

Hiroyuki Hayashi