Motorola Corporation

Garron K Morris

Debabrata Pal

Martin Rabindra Pais

Detlef W Schmidt

An improved cooling fan (,) fan for cooling an electronic component includes a rotor (,) rotatably mounted in a housing (,) and having a plurality of fan blades (,). The housing (,) includes a first end (,), a second end (,), and a passage (,) interconnecting the first end and the second end to define an air flow path (,) therebetween. An entry port (,) is defined by an upstream portion of the housing (,) generally adjacent the housing first end (,), with the entry port (,) having a cross-sectional area greater than a cross-sectional area of the passage (,). The entry port (,) and the passage (,) being separated by a transition zone (,), with the entry port (,) and the transition zone (,) cooperating to define an abrupt step (,). The abrupt step (,) is adapted to at least partially affect the flow of air flowing along the flow path (,), thereby reducing the ambient noise level of the fan.

Low-noise cooling fan for electronic components and method of making the same

A method and apparatus for monitoring and controlling temperatures at a semiconductor circuit (,) by an array (,) of thermoelectric cooler cells (,) which are disposed proximate the semiconductor circuit (,). At least one thermoelectric cooler (,) is located at the individual thermoelectric cooler cells (,) for removing and adding heat from cell areas associated with the thermoelectric coolers. A memory device (,) is associated with the cooler cells (,) and stores operational settings for the cooler cells. A controller (,) is coupled with the thermoelectric cooler cells (,) to individually control the operational settings for the cooler cells in the array (,).

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Niskayuna, NY, United States of America

Garron K Morris