Surgx Corporation

Oryx Technology Corporation

Other

James B Intrater

Gerald R Behling

Kailash C Joshi

Karen P Shrier

William W Alston, Jr

Jimmie Doyle Felps

Mike Olla

Kailash Joshi

Disclosed is a variable voltage protection device for electronic devices which in one aspect comprises a thin layer of neat dielectric polymer or glass positioned between a ground plane and an electrical conductor for overvoltage protection, wherein the neat polymer or glass layer does not include the presence of conductive or semiconductive particles. Also disclosed is the combination of the neat dielectric polymer or glass thin layer positioned on a conventional variable voltage protection material comprising a binder containing conductive or semiconductive particles. A multi-layer variable voltage protection component is disclosed comprising three layers of overvoltage protection material wherein the outer two layers contain a lower percentage of conductive or semiconductive particles and wherein the inner layer contains a higher percentage of conductive or semiconductive particles. The multi-layer component can optionally be used in combination with the neat dielectric polymer or glass layer and can optionally have interposed metal layers. A method is disclosed for dispersing insulative particles and conductive or semiconductive particles in a binder using a volatile solvent for dispersement of the insulative particles and the conductive or semiconductive particles before mixing with the binder.

Single and multi layer variable voltage protection devices and method of making same

Over voltage protection is provided for electronic circuits by disposing one or more ground bars for diverting harmful currents away from the sensitive electronic circuit elements. The ground bars are each associated with a row of contact portions of the electronic circuit. Microgaps between each contact portion and the corresponding ground bar are designed to provide an electrical conduit from the contact portion to the ground bar when normal operating voltages are exceeded, thereby channeling excess current harmlessly to ground. Under normal operating conditions, however, the microgaps act as electrical barriers, insulating the contact portions from ground. The microgaps may be filled with any combination of air, vacuum, or known variable voltage material.

Over-voltage protection for electronic circuits

A protection device for integrated circuits which prevents inadvertent damage caused by over-voltage power surges. The protection device comprising an insulating carrier having a ground plane thereon and a plurality of conductive pads around a periphery thereof. The plurality of conductive pads are spaced from the ground plane with a precision gap therebetween. When the protection device is placed over the integrated circuit chip, the plurality of conductive pads are coupled to the bonding pads of the integrated circuit and at least one of the conductive pads is coupled to the ground plane.

Over-voltage protection device for integrated circuits

A mass-producible, cost-effective discrete electrical protection device utilizing a precision gap between two electrically conductive members attached to an electrically insulating substrate to provide over-voltage protection to an electrical device. In one aspect, the electrical protection device is a surface mountable device. In another aspect, the device has through-holes for accommodating leads on an electrical connector. Methods are provided also for making the electrical protection device.

Over-voltage protection device and method for making same

A protection system for integrated circuits which prevents inadvertent damage caused by over-voltage power surges by extending the passivation layer of an integrated circuit over the bonding pads and placing a ground plane over that passivation layer so as to create an over-voltage switching element out of that combination.

Growing community of inventors

Santa Clara, CA, United States of America

James B Intrater