Abstract:
The present disclosure provides a semiconductor device comprising a substrate, an undoped HfO2 layer formed over the substrate and a TiN layer formed on the HfO2 layer. Herein, the undoped HfO2 layer is at least partially ferroelectric. In illustrative methods for forming a semiconductor device, an undoped amorphous HfO2 layer is formed over a semiconductor substrate and a TiN layer is formed on the undoped amorphous HfO2 layer. A thermal annealing process is performed for at least partially inducing a ferroelectric phase in the undoped amorphous HfO2 layer.
Abstract:
An illustrative method disclosed herein includes providing a semiconductor structure. The semiconductor structure includes a first interlayer dielectric provided over a semiconductor substrate. A first electrode of a first capacitor is formed over the first interlayer dielectric. A layer of first dielectric material is deposited over the first electrode of the first capacitor and the first interlayer dielectric. A layer of electrically conductive material is deposited over the layer of first dielectric material. A second electrode of the first capacitor and a first electrode of the second capacitor are formed from the layer of electrically conductive material. After the formation of the second electrode of the first capacitor and the first electrode of the second capacitor, a layer of second dielectric material is deposited and a second electrode of the second capacitor is formed over the layer of second dielectric material.
Abstract:
The present disclosure provides a semiconductor device comprising a substrate, an undoped HfO2 layer formed over the substrate and a TiN layer formed on the HfO2 layer. Herein, the undoped HfO2 layer is at least partially ferroelectric. In illustrative methods for forming a semiconductor device, an undoped amorphous HfO2 layer is formed over a semiconductor substrate and a TiN layer is formed on the undoped amorphous HfO2 layer. A thermal annealing process is performed for at least partially inducing a ferroelectric phase in the undoped amorphous HfO2 layer.
Abstract:
The present disclosure provides integrated circuit elements and MIM/MIS capacitors having high capacitance and methods of forming according integrated circuit elements and integrated MIM/MIS capacitors and methods of controlling an integrated circuit element and an integrated MIM/MIS capacitor. In various aspects, a substrate is provided and a dielectric layer or insulating layer is formed over the substrate. Furthermore, an electrode layer is disposed over the dielectric layer or insulating layer. Herein, the dielectric layer or insulating layer is in an antiferroelectric phase. In various illustrative embodiments, the integrated circuit element may implement a MOSFET structure or a capacitor structure.
Abstract:
The present disclosure provides integrated circuit elements and MIM/MIS capacitors having high capacitance and methods of forming according integrated circuit elements and integrated MIM/MIS capacitors and methods of controlling an integrated circuit element and an integrated MIM/MIS capacitor. In various aspects, a substrate is provided and a dielectric layer or insulating layer is formed over the substrate. Furthermore, an electrode layer is disposed over the dielectric layer or insulating layer. Herein, the dielectric layer or insulating layer is in an antiferroelectric phase. In various illustrative embodiments, the integrated circuit element may implement a MOSFET structure or a capacitor structure.
Abstract:
An illustrative method disclosed herein includes providing a semiconductor structure. The semiconductor structure includes a first interlayer dielectric provided over a semiconductor substrate. A first electrode of a first capacitor is formed over the first interlayer dielectric. A layer of first dielectric material is deposited over the first electrode of the first capacitor and the first interlayer dielectric. A layer of electrically conductive material is deposited over the layer of first dielectric material. A second electrode of the first capacitor and a first electrode of the second capacitor are formed from the layer of electrically conductive material. After the formation of the second electrode of the first capacitor and the first electrode of the second capacitor, a layer of second dielectric material is deposited and a second electrode of the second capacitor is formed over the layer of second dielectric material.