06259937 is referenced by 684 patents and cites 26 patents.

An implantable substrate sensor has electronic circuitry and electrodes formed on opposite sides of a substrate. A protective coating covers the substrate, effectively hermetically sealing the electronic circuitry under the coating. Exposed areas of the electrodes are selectively left uncovered by the protective coating, thereby allowing such electrodes to be exposed to body tissue and fluids when the sensor is implanted in living tissue. The substrate on which the electronic circuitry and electrodes are formed is the same substrate or “chip” on which an integrated circuit (IC) is formed, which integrated circuit contains the desired electronic circuitry. Such approach eliminates the need for an hermetically sealed lid or cover to cover hybrid electronic circuitry, and allows the sensor to be made much thinner than would otherwise be possible. In one embodiment, two such substrate sensors may be placed back-to-back, with the electrodes facing outward. As required, capacitors that form part of the sensor's electronic circuits are formed on the substrate by placing metalization layers and a dielectric in vacant areas of the substrate surface.

Title
Implantable substrate sensor
Application Number
9/100310
Publication Number
6259937 (B1)
Application Date
June 19, 1998
Publication Date
July 10, 2001
Inventor
Lyle Dean Canfield
Lake Hughes
CA, US
Rajiv Shah
Rancho Palos Verdes
CA, US
John C Gord
Venice
CA, US
Charles L Byers
Canyon Country
CA, US
Joseph H Schulman
Santa Clarita
CA, US
Agent
Lee Jay Mandell
US
Assignee
Alfred E Mann Foundation
CA, US
IPC
A61N 1/05
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