Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Electrostatic discharge protection device for digital circuits and for applications with input/output bipolar voltage much higher than the core circuit power supply










Image Number 5 for United States Patent #7285828.

An electrostatic discharge (ESD) device and method is provided. The ESD device can comprise a substrate doped to a first conductivity type, an epitaxial region doped to the second conductivity type, and a first well doped to the first conductivity type disposed in the substrate. The first well can comprise a first region doped to the first conductivity type, a second region doped to a second conductivity type, and a first isolation region disposed between the first region and the second region. The ESD device can also comprise a second well doped to a second conductivity type disposed in the substrate adjacent to the first well, where the second well can comprise a third region doped to the first conductivity type, a fourth region doped to the second conductivity type, and a second isolation region disposed between the third region and the fourth region. Still further, the ESD device can include a first trigger contact and second trigger contact comprising highly doped regions of either conductivity type, the first trigger contact disposed at a junction between the first well and the second well, and the second trigger contact disposed at either well.








 
 
  Recently Added Patents
Systems and methods for electronically initiating and executing securities lending transactions
Electrophoretic driving method and display device
Resin-diamagnetic material composite structure
Portable radiographic image capture device, image capture controller, and radiographic image capture system
Photovoltaic windable composite and solar protective device comprising such a composite
Lamp
DBR laser diode with symmetric aperiodically shifted grating phase
  Randomly Featured Patents
Bath with interchangeable fitting
Liquid-crystalline medium
Spraying nozzle arrangement
Disposable diaper with improved mechanical fastening system
Valve plate for a thermostatic valve
Information signal reproducing apparatus and method having improved search function utilizing alternative subdata detection and determination characteristics
Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during on hands-on and hands-free modes of operation
Method and apparatus for producing a premolded packaging
Decorative laminates having 3-dimensional effect
Photoimaged channel plate for a switch, and method for making a switch using same