Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Electrostatic discharge protection circuit triggered by capacitive-coupling










Image Number 6 for United States Patent #RE38222.

An electrostatic discharge (ESD) protection circuit connected to an integrated circuit pad for protecting an internal circuit from ESD damage. The ESD protection circuit includes an NMOS/PMOS transistor, a capacitor, and a load The NMOS/PMOS is configured with a drain connected to the IC pad and a source for connection to the circuit V.sub.SS /V.sub.DD. Agate of the NMOS/PMOS transistor is tied to the source. The capacitor is connected between the IC pad and the bulk of the NMOS/PMOS transistor The load, which is either another NMOS/PMOS transistor or a resistor, is to be connected between the V.sub.SS /V.sub.DD and the bulk of the NMOS/PMOS transistor. In accordance with the invention, the NMOS/PMOS transistor is fabricated in a P-well/N-well region of a semiconductor substrate. The capacitor includes an IC pad and a polysilicon layer therebelow, with an intervening dielectric layer.








 
 
  Recently Added Patents
Redundant parallel operation of motor vehicle electrical system generators
Photoelectric conversion device
Mobile computing terminal
Context-sensitive views
Image processing unit, image processing method and program
Electronic device with embedded antenna
RFID reader revocation checking using low power attached displays
  Randomly Featured Patents
Plant RNA transport and RNA-directed RNA polymerase proteins
Solar ultraviolet radiation measuring device and process
Apparatus and method for adding music content to visual content delivered via communication network
Lithium ion secondary battery
Venetian blind ladder drum and method of assembling venetian blind
Ski boots
Tapered bushing and hub assembly for sheaves, gears, sprockets, couplings and similar machine elements
Thermal printer and resistance data measuring device for thermal head of the same
Method and system for providing remote procedure calls in a multiprocessing system
Adaptor for charging small cells in large-cell charger