Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – Bidirectional rectifier with control electrode
Reexamination Certificate
2007-01-24
2008-09-23
Menz, Douglas M (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Regenerative type switching device
Bidirectional rectifier with control electrode
C257S729000
Reexamination Certificate
active
07427786
ABSTRACT:
A diode device is disclosed, comprising a pair of electrodes separated by bellows. The corrugated walls of the bellows create a tortuous thermal pathway thereby reducing parasitic heat losses and increasing the device's efficiency. The bellows' also allow for a controlled environment to be sustained within the device. In a preferred embodiment the controlled environment is a vacuum. In one embodiment, a modified electrode for use in a diode device of the present invention is disclosed, in which indents are made on the surface of the electrode. In a further embodiment the bellows comprise shape memory alloys: previously deformed bellows are attached to the diode device and then grown to set the gap between the electrodes. In further embodiments the use of corrugation is applied to other parts of the diode device to elongate its thermal pathway and thereby increase its efficiency. For example, in one embodiment the outer rims of electrodes in a diode device are corrugated to increase the device's thermal pathway.
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Borealis Technical Limited
Menz Douglas M
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