Kabushiki Kaisha Topcon

Renesas Electronics Corporation

Kawasaki Steel Corporation

Shinji Kawashima

Fumio Ohtomo

Kaoru Kumagai

Kiichi Furuya

Toshimichi Ukena

Hisao Kobashi

Kazunori Doi

Kei Yuki

Katsuhito Kawamura

Shin Tamura

Fuyuhiko Ishikawa

Kazumitsu Sambonchiku

A semiconductor device includes a semiconductor substrate on which a temperature sensor is formed, a plurality of insulating films formed above the semiconductor substrate, a temperature measurement wiring pattern formed on a first insulating film which is one of the plurality of the insulating films, a detection electrode which is formed on the uppermost insulating film of the plurality of the insulating films to be arranged at a position corresponding to the first temperature measurement wiring pattern and is provided for contact a temperature measurement needle, and one or more via electrodes formed in one or more insulating film between the temperature measurement electrode and the detection electrode to couple between the temperature measurement electrode and the detection electrode.

Semiconductor device and trimming method of the same

A stabilized regulator circuit is provided A first Pch transistor (PTr) (P) whose source is connected to a power supply line and whose drain is connected to an output terminal that outputs a load current, a PTr (P) whose source and gate are respectively connected to the source and gate of the PTr (P), resistor elements connected in series between the output terminal and ground, a resistor element (R) connected between a drain of Pand ground, and an amplifier which controls Pand Pbased on a difference between potential of a connection point of the resistor elements and a reference. A comparator, with a differential amplifier input stage configured by an Nch transistor, compares potential difference between two ends of Rand potential difference between the connection point of the resistor elements and ground, and when the former is larger, controls Pso as to limit load current.

Regulator circuit having over-current protection

Improved recovery of tin from sludge formed during a halogen-type electrolytic tinplating of steel sheet comprises leaching the sludge with water at a pH of 7 or less, separating an iron-containing sludge remaining after the leaching, alkalifying the filtrate obtained in the first separation step to deposit tin-containing sludge, separating and recovering the tin-containing sludge deposited in the first alkalifying step, redissolving the tin-containing sludge in an alkaline solution, and electrolytic reduction of the alkaline solution. High purity metallic tin is recovered from sludge, at a high yield. Other materials are also recovered for reuse from the filtrate and precipitation, which are formed during the process, without pollution of the operational environment.

Method for recovering metallic tin from electroplating sludge

An electronic leveling apparatus and associated leveling staff are designed to form an image of scale patterns of the leveling staff on a photo-electric transducer by means of a telescopic optical system, convert the image into an electrical signal with the transducer and implement the Fourier transformation for the signal with a signal processor, thereby having functions of focusing control and abnormality detection. The leveling staff has an alignment of the first and second (and third) scale patterns aligned in order cyclically at a constant pitch along the length measuring direction, with the first and second patterns having their widths varied in different cyclic periods and the third pattern having a constant width.

Electronic leveling apparatus and leveling staff used with the same

An electronic leveling apparatus and associated leveling staff are capable of measuring the height difference of the positions automatically through the opto-electric conversion of the image of a pattern formed on the leveling staff. The apparatus has a turning drive means for turning it on a horizontal plane, a light emission means for emitting a light beam to the outside, a light reception means for receiving a reflected light of the emitted light beam, and a signal processor for controlling the turning drive means in response to the received signal so that the apparatus is oriented to the leveling staff automatically.

Electronic leveling apparatus having a leveling staff detection

An electronic leveling system, which is intended to enhance the efficiency of leveling work, is capable of sending various data generated on the part of the electronic level unit from it to the electronic leveling staff and sending various data generated on the part of the leveling staff from it to the leveling unit. The system includes a function of compensating automatically the tilt of the leveling unit and leveling staff.

Growing community of inventors

Tokyo, Japan

Shinji Kawashima