Minnesota Mining and Manufacturing Company

Neil W Loeding

Dennis L Krueger

Nang T Tran

Claudia I Poser

Chester Piotrowski

David V Nins, Deceased

Raymond M Warner, Jr

William M Mularie

Steven A Bendson

David V Nins

The present invention provides a large area, high pixel density solid state radiation detector with a real-time and a non-destructive read-out. The solid state detector comprises a plurality of field effect transistors deposited onto a substrate to form an array. A planarization layer is deposited over the array of transistors. An energy sensitive layer is deposited onto the planarization layer. Means is provided for electrically connecting the energy sensitive layer with each transistor of the array. A top electrode layer is deposited onto the energy sensitive layer. The solid state detector also comprises circuitry means for providing electronic read-out from each FET of the array.

Method of making a solid state electromagnetic radiation detector

Solid state electromagnetic radiation detector with planarization layer

Solid state electromagnetic radiation detector FET array

A pyroelectric and isotropic piezoelectric polymeric film, the film being formed from a blend of polyvinylidene fluoride and at least one polymer miscible therewith, and prepared by forming the film, heating it to a temperature sufficient to render the film substantially amorphous, cooling at a rate and to a temperature sufficient to prevent crystallization, and polarizing the film to render same .beta.-crystalline and pyroelectric and isotropically piezoelectric.

Pyroelectric and isotropic piezoelectric polymer blends

A pyroelectric and isotropic piezoelectric polymeric film, the film being formed from a blend of polyvinylidene fluoride and at least one polymer miscible therewith at a temperature above the melting point of the polyvinylidene fluoride, and a process for preparing the film comprising forming the film, heating it to a temperature sufficient to render the film substantially amorphous, cooling at a rate and to a temperature sufficient to prevent crystallization, and polarizing the film to render same pyroelectric and isotropically piezoelectric.

Method of making a film from pyroelectric and isotropic piezoelectric

A thin-film magnetic recording playback head is disclosed wherein mechanically coupled films of a magnetostrictive material and of a piezoelectric material are deposited on a substrate together with a solid state amplifier which is coupled to the piezoelectric film. In operation, localized magnetic patterns on a recording medium induce stress in the magnetostrictive film, which in turn induces in the piezoelectric film a corresponding electrical polarization of non-equilibrium charge density, having a potential associated therewith which is applied to the solid state amplifier.

Integrated magnetostrictive-piezoelectric-metal oxide semiconductor

A thin film magnetic recording playback head is disclosed wherein mechanically coupled films of a magnetostrictive material and of a piezoresistive material are utilized with a solid state amplifier electrically coupled to sense resistance changes in the piezoresistive film. In operation, localized magnetic patterns on a recording medium induce strain in the magnetostrictive film, which in turn induces in the piezoresistive film corresponding changes in electrical resistance.

Growing community of inventors

Mounds View, MN, United States of America

Neil W Loeding