Hybrid high electron mobility transistor and active matrix structure
AssigneeInternational Business Machines Corporation
InventorsAli Afzali-Ardakani, Bahman Hekmatshoartabari, Devendra K. Sadana, Davood Shahrjerdi
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Abstract
Hybrid high electron mobility field-effect transistors including inorganic channels and organic gate barrier layers are used in some applications for forming high resolution active matrix displays. Arrays of such high electron mobility field-effect transistors are electrically connected to thin film switching transistors and provide high drive currents for passive devices such as organic light emitting diodes. The organic gate barrier layers are operative to suppress both electron and hole transport between the inorganic channel layer and the gate electrodes of the high electron mobility field-effect transistors.
Claims6
A structure comprising:
- an array of high electron mobility field-effect transistors, each of the high electron mobility field-effect transistors including:
- an inorganic semiconductor layer;
- a gate electrode;
- first and second ohmic contacts operatively associated with the inorganic semiconductor layer, and
- a gate barrier layer operatively associated with the gate electrode, the gate barrier layer being positioned between the gate electrode and the inorganic semiconductor layer and operative to suppress electron and hole transport between the inorganic semiconductor layer and the gate electrode, the gate barrier layer including a first organic semiconductor layer comprising a first material for blocking holes and a second organic semiconductor layer comprised of a second material for blocking electrons, the first material being different from the second material;
- an array of thin film switching transistors, each of the thin film switching transistors being electrically connected to one of the high electron mobility field-effect transistors, and
- an array of electronic devices, each of the electronic devices being electrically connected to one of the high electron mobility field-effect transistors.
Dependencies are inferred from the claim text.