Method and apparatus to increase radar range
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United States of America Patent
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Dec 27, 2022
Grant Date -
Jul 8, 2021
app pub date -
Mar 19, 2021
filing date -
Dec 22, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
An integrated radar circuit comprising: a first substrate, of a first semiconductor material, said first substrate comprising an integrated transmit and receive radar circuit; a second substrate, of a second semiconductor material, said second substrate comprising at least on through-substrate cavity having cavity walls; at least one discrete transistor chip, of a third semiconductor material, said at least one discrete transistor chip having chip walls and being held in said at least one through-substrate cavity by a metal filling extending from at least one cavity wall to at least one chip wall; a conductor on said second substrate, electrically connecting a portion of said integrated transmit and receive radar circuit to a discrete transistor on said at least one discrete transistor chip.
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