SENSOR HAVING ORGANIC FIELD EFFECT TRANSISTORS
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Abstract
A force sensor based on an organic field effect transistor applied on a substrate is disclosed. In one embodiment, a mechanical force acting on the transistor causes a change in its source-drain voltage or its source-drain current which corresponds to said force and which can in each case be detected as measurement quantity for the acting force, a diaphragm-based pressure sensor that uses a force sensor of this type, a one- or two-dimensional position sensor that uses a multiplicity of force sensors of this type, and a fingerprint sensor that uses a multiplicity of such force sensors.
64 Citations
37 Claims
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1-16. -16. (canceled)
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17. A force sensor comprising:
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a substrate; and an organic field effect transistor applied on the substrate, in which a mechanical force acting on the transistor causes a change in its source-drain voltage or its source-drain current which corresponds to the force and is detected as measurement quantity for the acting force. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A pressure sensor comprising:
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at least one force sensor comprising a substrate, and an organic field effect transistor applied on the substrate, in which a mechanical force acting on the transistor causes a change in its source-drain voltage or its source-drain current which corresponds to the force and is detected as measurement quantity for the acting force; and where the substrate is configured as a deformable diaphragm and the measurement quantity corresponding to the bending state of the diaphragm.
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24. A One- or two-dimensional position sensor for measuring the position of a mechanical force action along a line or within an area using a multiplicity of force sensors comprising:
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one or more force sensors comprising a substrate, and an organic field effect transistor applied on the substrate, in which a mechanical force acting on the transistor causes a change in its source-drain voltage or its source-drain current which corresponds to the force and is detected as measurement quantity for the acting force; and a where the force sensors are arranged at regular distances from one another in a form of a one- or two-dimensional matrix on a common substrate. - View Dependent Claims (25, 26)
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34. A force sensor comprising:
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a substrate; and means for providing an organic field effect transistor applied on the substrate, in which a mechanical force acting on the transistor means causes a change in its source-drain voltage or its source-drain current which corresponds to the force and is detected as measurement quantity for the acting force. - View Dependent Claims (35, 36, 37)
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Specification