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
Earphone
Solid state imaging device
Unit for supporting ceramic products
Battery module
Communications module apparatus, integrated circuit and method of communicating data
Automated method and system for making painted vehicle body panel skins and vehicle body panels, such as instrument panels, utilizing same
Cleaning device, image formation device, and image formation method
  Randomly Featured Patents
Irrigation control apparatus, system, and method
Method for operating a closed loop air/fuel ratio control system of an internal combustion engine
Insert for a collector profile of a condenser
Apparatus for dispensing fluids using a press-fit diptube
Navigation device and method for displaying navigation information in a visual perspective view
Rolling method using rolling guide
Back-end processes for substrates re-use
Tank top
Apparatus and method for removal of back-plated developer
Temperature control of exothermic reactions