Resources Contact Us Home
Inverted groove isolation technique for merging dielectrically isolated semiconductor devices

Image Number 2 for United States Patent #4982262.

An area saving dielectrically isolated semiconductor structure is disclosed which allows for the merger of a plurality of active devices, which share a common terminal, in a single dielectrically isolated (DI) island, or tub. In particular, an isolation groove is formed in the bottom of the DI tub and extends upwards toward the top surface of the semiconductor structure. The common diffusion region associated with the common terminal is located in the DI tub directly over the isolation groove. The isolation groove and common diffusion region thus separate the single DI tub into isolated sections, where a separate active device can be formed in each section. Isolation is achieved through the interaction of the groove with the common diffusion region to "pinch off" the conductive channel between devices in the DI tub. In a preferred embodiment, an inverted V-shaped isolation groove is utilized so as not to complicate the fabrication process. In order to merge a large plurality of devices in a single DI tub, a plurality of isolation grooves may be utilized to divide the single DI tub into a number of separate isolated sections.

  Recently Added Patents
Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria
Organic EL display device and method for manufacturing the same
Use of physical deformation during scanning of an object to generate views of the object
Method and assembly for determining the temperature of a test sensor
Associating objects in databases by rate-based tagging
Image forming apparatus
Avalanche photo diode and method of manufacturing the same
  Randomly Featured Patents
Using commercial share of wallet in private equity investments
Sulphur dioxide gas scrubbing process
Apparatus for refining molten metal
High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion
System for facilitating the handling of goods based on containers equipped with an RFID tag
Side door structure for vehicle
Electroluminescent device with silazane-containing luminescent zone
Systems and methods for providing unified multimedia communication services
Adjustable curtain rod
Shield case for electronic equipment