Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Systems and methods for excluding undesirable network transactions
Support for a portable electronic device
Press nut
Method and system for leveraging the power of one's social-network in an online marketplace
Method and apparatus for information exchange over a web based environment
Multi-wired antenna for mobile apparatus
System and method for enhancing buyer and seller interaction during a group-buying sale
  Randomly Featured Patents
Apparatus for the treatment and casting of metals and alloys in a closed space
Thiocarbamates
Dental articulator
Electromotive brake actuator
Battery pack with protection circuit
Pre-moistened towelette dispenser
Anode for a direct current arc furnace
Aqueous cerium-containing solution having an extended bath lifetime for removing mask material
Flush mounting for card shuffler
Cartridge type screwdriver