Time-varying frequency powered heat source
First Claim
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1. An apparatus comprising:
- an article of manufacture, comprising an active heat source including;
a predefined substrate; and
two or more electrodes, formed at manufacture to be located directly or indirectly on the substrate, the electrodes configured to receive a non-zero frequency time-varying electrical energy that is coupled by the one or more electrodes to the substrate to generate a frequency-controlled heat source in the substrate, the heat source location selected along a length of the two or more electrodes by adjusting the frequency of the time-varying electrical energy; and
wherein the two or more electrodes include first and second electrodes separated from each other by different minimum spacing at different locations on at least one of the first and second electrodes so that adjusting the frequency of the time-varying electrical energy is capable of selectably adjusting at least one corresponding frequency-dependent current path between the first and second electrodes to provide the frequency-controlled heat at at least one desired location in the substrate.
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Abstract
A semiconductor or other substrate can include one or more electrodes, located directly or indirectly on the substrate, separated from each other and coupled to the substrate. At the two or more electrodes, non-zero frequency time-varying electrical energy can be received. The time-varying electrical energy can be coupled via the two or more electrodes to trigger a displacement current to activate free carriers confined within the semiconductor substrate to generate frequency-controlled heat in the semiconductor substrate.
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Citations
28 Claims
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1. An apparatus comprising:
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an article of manufacture, comprising an active heat source including; a predefined substrate; and two or more electrodes, formed at manufacture to be located directly or indirectly on the substrate, the electrodes configured to receive a non-zero frequency time-varying electrical energy that is coupled by the one or more electrodes to the substrate to generate a frequency-controlled heat source in the substrate, the heat source location selected along a length of the two or more electrodes by adjusting the frequency of the time-varying electrical energy; and wherein the two or more electrodes include first and second electrodes separated from each other by different minimum spacing at different locations on at least one of the first and second electrodes so that adjusting the frequency of the time-varying electrical energy is capable of selectably adjusting at least one corresponding frequency-dependent current path between the first and second electrodes to provide the frequency-controlled heat at at least one desired location in the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of establishing or adjusting a temperature of a heating element, the method comprising:
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obtaining or providing an article of manufacture comprising an active heat source including a predefined substrate and two or more electrodes, formed at manufacture to be located directly or indirectly on the substrate, wherein the two or more electrodes including first and second electrodes separated from each other by different minimum spacing at different locations on at least one of the first and second electrodes; receiving, at the two or more electrodes, non-zero frequency time-varying electrical energy that is coupled by the two or more electrodes to the substrate to generate a frequency-controlled heat source in the substrate; tuning a frequency of the time-varying electrical energy to generate frequency-controlled selection of location of heat in the substrate along a length of the two or more electrodes, the tuning including adjusting the frequency of the time-varying electrical energy for selectably adjusting at least one corresponding frequency-dependent current path between the first and second electrodes to provide the frequency-controlled heat at at least one desired location in the substrate; and establishing or adjusting a temperature of the substrate, including controlling the frequency of the electrical energy received at the two or more electrodes. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification