Heater apparatus
AssigneePragmatic Semiconductor Limited
InventorsAdam REARDEN, Brian COBB, Mohsen PADASH, Phillip ALLEN, Richard PRICE
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Abstract
Heater apparatus is disclosed. The heater apparatus includes a heating surface and heater devices arranged to provide heat for heating the heating surface. The heater devices include one or more heater field effect transistors (FETs), each having a gate, a source, and a drain. Each heater FET is arranged to generate heat for heating the heating surface when a control signal is applied to the gate of that heater FET, and a corresponding current flows between the drain and the source of that heater FET.
Claims20
Heater apparatus comprising:
- a heating surface;
- and
- a plurality of heater devices arranged to provide heat for heating the heating surface;
- wherein the plurality of heater devices comprises at least one heater field effect transistor (FET) having a gate, a source, and a drain;
- and
- wherein the at least one heater FET is arranged to generate heat for heating the heating surface when a control signal is applied to the gate of the at least one heater FET, and a corresponding current flows between the drain and the source of the at least one heater FET.
A method of manufacturing a heater apparatus, the heater apparatus comprising:
- a heating surface;
- and
- a plurality of heater devices arranged to provide heat for heating the heating surface;
- wherein the plurality of heater devices comprises at least one heater field effect transistor (FET) having a gate, a source, and a drain;
- and
- wherein the at least one heater FET is arranged to generate heat for heating the heating surface when a control signal is applied to the gate of the at least one heater FET, and a corresponding current flows between the drain and the source of the at least one heater FET,
- the method comprising:
- fabricating the plurality of heater devices in an arrangement configured to provide heat for heating the heating surface;
- wherein the plurality of heater devices comprises the at least one heater field effect transistor (FET) having the gate, the source, and the drain;
- and
- wherein the at least one heater FET is arranged to generate the heat for heating the heating surface when the control signal is applied to the gate of the at least one heater FET, and the corresponding current flows between the drain and the source of the at least one heater FET.
A method of providing heating to an object, the method comprising:
- providing a heater apparatus comprising:
- a heating surface;
- and
- a plurality of heater devices arranged to provide heat for heating the heating surface;
- wherein the plurality of heater devices comprises at least one heater field effect transistor (FET) having a gate, a source, and a drain;
- and
- wherein the at least one heater FET is arranged to generate heat for heating the heating surface when a control signal is applied to the gate of the at least one heater FET, and a corresponding current flows between the drain and the source of the at least one heater FET;
- and
- wherein the heating surface positioned to provide heat to the object;
- and
- applying a control signal to the gate of the at least one heater FET, to control the corresponding current flow between the drain and the source of the at least one heater FET, and so provide a heating effect.
Dependencies are inferred from the claim text.