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US 4,143,348 AGranted
Air temperature sensor connection assembly
AssigneeThe Bendix Corporation
InventorRobert R. Hoge
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AssigneeThe Bendix Corporation
InventorRobert R. Hoge
Estimating the term…
A fast response fluid temperature sensor is disclosed which consists of a silicon temperature sensing semiconductor chip mounted on an extremely thin fin having a high surface area to mass ratio. The fin and chip combination are mounted in a frame assembly, with the thermal conductivity of the frame assembly being high and the specific heat being low for maximum heat transfer from the fluid being sensed to the silicon chip. The chip and fin assembly are illustrated as being open to the free flow of fluid around the assembly, no insulating material being provided between the fluid media being sensed and the fin and chip assembly, and a protective cage is formed around the fin and chip assembly. Suitable connection is made between one electrical terminal of the chip and the fin and between the other electrical terminal of the chip and the external circuitry, with various modified forms of such connections being illustrated.
A temperature sensor for sensing the temperature of a fluid comprising a base member having at least first and second support arms thereon, fin means formed of a thin disc having a high surface area to mass ratio fixingly mounted on said first and second support arms whereby said fluid to be sensed may flow over the top and bottom surface of said fin means, a semiconductor chip having the characteristic of changing resistance with changes in temperature mounted on said fin means, said semiconductor chip having a first and a second terminal on a single surface of said chip, one of said terminals being in electrical contact with said fin means, insulating means supported on said fin means between an edge of said fin means and said chip, conductive means mounted on said insulating means and within the confines thereof, the other of said terminals being in electrical contact with said conductive means, a first output conductor connected to said fin means, a second output conductor electrically insulated from said fin means and electrically connected to said conductive means.
Dependencies are inferred from the claim text.