Abstract: A structure, apparatus and method for deterring the temperature of an active region in semiconductor, particularly a FET is provided. A pair FETs are arranged on a silicon island a prescribed distance from one another where the silicon island is surrounded by a thermal insulator. One FET is heated by a current driven therethrough. The other FET functions as a temperature sensor by having a change in an electrical characteristic versus temperature monitored. By arranging multiple pairs of FETs separated by different known distances, the temperature of the active region of one of the FETs may be determined during operation at various driving currents.

Abstract: A structure, apparatus and method for deterring the temperature of an active region in semiconductor, particularly a FET is provided. A pair FETs are arranged on a silicon island a prescribed distance from one another where the silicon island is surrounded by a thermal insulator. One FET is heated by a current driven therethrough. The other FET functions as a temperature sensor by having a change in an electrical characteristic versus temperature monitored. By arranging multiple pairs of FETs separated by different known distances, the temperature of the active region of one of the FETs may be determined during operation at various driving currents.

Abstract: A ladder-type gate structure for a silicon-on-insulator (SOI) four-terminal semiconductor device is disclosed. The structure includes a gate having a first and second portion, a body region, which is under the first portion of the gate, a body contact, which is adjacent to the second portion of the gate, and a plurality of body contacts connecting the body region to the body contact through a drain region. The gate structure provides an independently controlled body region and includes a substantially uniform voltage across the body region in the SOI semiconductor device.

Abstract: A personal multi-purpose navigational instrument which can be hand held and portable for transporting at long distances is disclosed. The navigational instrument can receive, process, display, store and interface data for navigational use, such as, bearing information, inclination and declination,temperature, barometric pressure, current and elapse times, or the like. The navigational instrument has an internal flux gate magnetometer, solid state temperature sensor, solid state barometric pressure sensor, infrared sensor, and real time clock. The navigational instrument has a foldable LCD display for outputting the desired navigational information and a keyboard for instructing or inputting information through an internal microprocessor. Numerous functions can be performed as desired by way of the operations performed by the user on the keyboard; i.e.