Abstract:
Crystal dislocations, in that portion of an epitaxial layer of semiconductive material over a buried pocket in a substrate in which a bipolar transistor''s emitter is located, are reduced by providing the buried pocket with a lower concentration of conductivity modifiers under the emitter.
Abstract:
A body of semiconductor material has an isolation region of Ptype conductivity which surrounds a plurality of zones of N-type conductivity. An insulating layer is disposed on the surface of the body. At least one of the N-type zones contains a region of P-type conductivity which is connected to a bonding pad on the surface of the insulating layer by means of an electrical lead. The electrical lead and the bonding pad are disposed on the insulating layer entirely within the area above the N-type zone containing the P-type region.
Abstract:
A semicondcutor device adapted for use as a temperature sensor, e.g., in a flowing fluid medium for sensing changes in the flow rate of the medium, includes a temperature sensitive resistor comprising a region of semiconductive material of uniform resistivity. Beam leads make electrical connection to the resistor and are adapted to provide rugged structural support for the device within the fluid medium.