Abstract:
A tunable capacitor may include a first terminal having a first semiconductor component with a first polarity. The tunable capacitor may also include a second terminal having a second semiconductor component with a second polarity. The second component may be adjacent to the first semiconductor component. The tunable capacitor may further include a first conductive material electrically coupled to a first depletion region at a first sidewall of the first semiconductor component.
Abstract:
An insulated gate turn-off (IGTO) device, formed as a die, has a layered structure including a p+ layer (e.g., a substrate), an n- epi layer, a p-well, vertical insulated gate electrodes formed in the p-well, and n+ regions between the gate electrodes, so that vertical npn and pnp transistors are formed. The device is formed of a matrix of cells. To turn the device on, a positive voltage is applied to the gate electrodes, referenced to the cathode. The cells further contain a vertical p-channel MOSFET, for shorting the base of the npn transistor to its emitter, to turn the npn transistor off when the p-channel MOSFET is turned on by a slight negative voltage applied to the gate. The p-channel MOSFET includes a Schottky source formed in the top surface of the npn transistor emitter.
Abstract:
Embodiments herein describe techniques for a semiconductor device comprising a channel having a first semiconductor material; a source contact coupled to the channel, comprising a first Heusler alloy; and a drain contact coupled to the channel, comprising a second Heusler alloy. The first Heusler alloy is lattice-matched to the first semiconductor material within a first predetermined threshold. A first Schottky barrier between the channel and the source contact, and a second Schottky barrier between the channel and the drain contact are negative, or smaller than another predetermined threshold. The source contact and the drain contact can be applied to a strained silicon transistor, an III-V transistor, a tunnel field-effect transistor, a dichalcogenide (MX2) transistor, and a junctionless nanowire transistor.
Abstract:
In described examples, a vertically oriented BARITT diode (108) is formed in an integrated circuit (100). The BARITT diode (108) has a source (126) proximate to a top surface of a substrate (102) of the integrated circuit (100), a drift region (128) immediately below the source (126) in semiconductor material of the substrate (102), and a collector (130) in the semiconductor material of the substrate (102) immediately below the drift region (128). A dielectric isolation structure (132) laterally surrounds the drift region (128), extending from the source (126) to the collector (130). The source (126) may optionally include a silicon germanium layer or may optionally include a Schottky barrier contact.
Abstract:
A semiconductor structure is formed with an active layer having an active device including a body region. The active device is formed by top side processing in and on a top side of a semiconductor on insulator wafer. A damaged region is formed within a portion of the body region by bottom side processing at a bottom side of the semiconductor on insulator wafer, the damaged region having a structure sufficient to prevent a kink effect and self-latching in operation of the active device.