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
Manage a shared computing resource based on resource use reports
System, medium, and method compensating brightness of an image
System and method for internal networking, data optimization and dynamic frequency selection in a vehicular environment
Test head moving apparatus and electronic component testing apparatus
System and method for delivering content to a user of a telephony device
High-molecular weight conjugate of steroids
Methods for managing contract procurement
  Randomly Featured Patents
Method and apparatus for efficient sharing of communication system resources
Swimming goggles
Motorcycle foot peg
Method of removing plasma etch damage to pre-silicidized surfaces by wet silicon etch
Imaging channeled spectrograph
Indirect bandgap semiconductor optoelectronic device
Torque converter
Portable exercise apparatus
Methods, compositions and kits for promoting recovery from damage to the central nervous system
Golf cart