Texas Instruments Corporation

Walter Hans Paul Schroen

Osvaldo Jorge Lopez

Jonathan Almeria Noquil

Simon John Molloy

Thomas Eugene Grebs

A self-powered electronic system comprises a first chip of single-crystalline semiconductor embedded in a second chip of single-crystalline semiconductor shaped as a container bordered by ridges. The assembled chips are nested and form an electronic device assembled, in turn, in a slab of weakly p-doped low-grade silicon shaped as a container bordered by ridges. The flat side of the slab includes a heavily n-doped region forming a pn-junction with the p-type bulk. A metal-filled deep silicon via through the p-type ridge connects the n-region with the terminal on the ridge surface as cathode of the photovoltaic cell with the p-region as anode. The voltage across the pn-junction serves as power source of the device.

Photo-sensitive silicon package embedding self-powered electronic system

A self-powered electronic system comprises a first chip () of single-crystalline semiconductor embedded in a second chip () of single-crystalline semiconductor shaped as a container bordered by ridges. The assembled chips are nested and form an electronic device assembled, in turn, in a slab of weakly p-doped low-grade silicon shaped as a container () bordered by ridges (). The flat side () of the slab includes a heavily n-doped region () forming a pn-junction () with the p-type bulk. A metal-filled deep silicon via () through the p-type ridge () connects the n-region with the terminal () on the ridge surface as cathode of the photovoltaic cell with the p-region as anode. The voltage across the pn-junction serves as power source of the device.

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Dallas, TX, United States of America

Walter Hans Paul Schroen