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US 12,746,349 B2Granted
Aerosol generating device comprising semiconductor heaters
AssigneeAltria Client Services LLC
InventorRui Nuno Batista
Life of this patent
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Abstract
An aerosol-generating device includes an electrical power supply, a cavity structure configured to receive an aerosol-generating article, and a plurality of semiconductor heaters within the cavity structure. Each of the plurality of semiconductor heaters includes a substrate layer and a heating layer on the substrate layer. The heating layer is a continuous layer. The aerosol-generating device includes a controller configured to control a supply of electrical power from the electrical power supply to each of the plurality of semiconductor heaters.
Claims18
An aerosol-generating device comprising:
- a housing;
- an electrical power supply in the housing;
- a plurality of semiconductor heaters in the housing, each of the plurality of semiconductor heater including,
- a substrate layer, and
- a heating layer on the substrate layer, the heating layer of at least one of the plurality of semiconductor heaters including a semiconductor gas sensor such that the heating layer is a combined heating and gas sensing layer;
- and
- a controller configured to control a supply of electrical power from the electrical power supply to each of the plurality of semiconductor heaters, the controller configured to determine an amount of at least one gas based on a measured electrical resistance of the combined heating and gas sensing layer, and
- wherein the controller is configured to simultaneously:
- control a supply of electrical power from the electrical power supply to the combined heating and gas sensing layer so as to heat the semiconductor gas sensor;
- and
- determine an amount of at least one gas based on a measured electrical resistance of the combined heating and gas sensing layer.
8 more elements
Dependencies are inferred from the claim text.