摘要:
A power semiconductor device which includes gate liners extending along gate insulation liners and an insulation block spacing the two gate liners.
摘要:
Disclosed is a method for fabricating a shallow and narrow trench field-effect transistor (trench FET). The method includes forming a trench within a semiconductor substrate of a first conductivity type, the trench including sidewalls and a bottom portion. The method further includes forming a substantially uniform gate dielectric in the trench, and forming a gate electrode within said trench and over said gate dielectric. The method also includes doping the semiconductor substrate to form a channel region of a second conductivity type after forming the trench. In one embodiment, the doping step is performed after forming the gate dielectric and after forming the gate electrode. In another embodiment, the doping step is performed after forming the gate dielectric, but prior to forming the gate electrode. Structures formed by the invention's method are also disclosed.
摘要:
According to an exemplary embodiment, a trench field-effect transistor (trench FET) includes a trench formed in a semiconductor substrate, the trench including a gate dielectric disposed therein. A source region is disposed adjacent the trench. The trench FET also has a gate electrode including a lower portion disposed in the trench and a proud portion extending laterally over the source region. A silicide source contact can extend vertically along a sidewall of the source region. Also, a portion of the gate dielectric can extend laterally over the semiconductor substrate. The trench FET can further include a silicide gate contact formed over the proud portion of the gate electrode.
摘要:
According to an exemplary embodiment, a trench field-effect transistor (trench FET) includes a trench formed in a semiconductor substrate, the trench including a gate dielectric disposed therein. A source region is disposed adjacent the trench. The trench FET also has a gate electrode including a lower portion disposed in the trench and a proud portion extending laterally over the source region. A silicide source contact can extend vertically along a sidewall of the source region. Also, a portion of the gate dielectric can extend laterally over the semiconductor substrate. The trench FET can further include a silicide gate contact formed over the proud portion of the gate electrode.
摘要:
Disclosed is a method for fabricating a shallow and narrow trench field-effect transistor (trench FET). The method includes forming a trench within a semiconductor substrate of a first conductivity type, the trench including sidewalls and a bottom portion. The method further includes forming a substantially uniform gate dielectric in the trench, and forming a gate electrode within said trench and over said gate dielectric. The method also includes doping the semiconductor substrate to form a channel region of a second conductivity type after forming the trench. In one embodiment, the doping step is performed after forming the gate dielectric and after forming the gate electrode. In another embodiment, the doping step is performed after forming the gate dielectric, but prior to forming the gate electrode. Structures formed by the invention's method are also disclosed.
摘要:
A power semiconductor device which includes gate liners extending along gate insulation liners and an insulation block spacing the two gate liners.
摘要:
One exemplary disclosed embodiment comprises a semiconductor package including a vertical conduction control transistor and a vertical conduction sync transistor. The vertical conduction control transistor may include a control source, a control gate, and a control drain that are all accessible from a bottom surface, thereby enabling electrical and direct surface mounting to a support surface. The vertical conduction sync transistor may include a sync drain on a top surface, which may be connected to a conductive clip that is coupled to the support surface. The conductive clip may also be thermally coupled to the control transistor. Accordingly, all terminals of the transistors are readily accessible through the support surface, and a power circuit, such as a buck converter power phase, may be implemented through traces of the support surface. Optionally, a driver IC may be integrated into the package, and a heatsink may be attached to the conductive clip.
摘要:
Method and device for measurement compensation for inter-system reselection and handover in a dual-mode terminal are disclosed. The method comprises: a GSM physical layer reporting measured RSCP and Ec/No values of a 3G neighbor cell to a radio resource management layer with inter-layer primitives; the radio resource management layer receiving the inter-layer primitives carrying the RSCP and Ec/No values reported by the physical layer, and performing measurement compensation for the inter-layer primitives in the radio resource management layer. Since the measurement compensation is performed in the radio resource management layer of the terminal, the terminal preferably resides on 3G network when detecting the 3G network. It can be applied to measurement compensation for the inter-system reselection and handover when 2G and 3G mobile communication systems co-exist. The terminal is more easily retained on the network of one of the systems and allowed to make a priority selection of the networks.
摘要:
A power semiconductor device includes a plurality of trenches formed within a semiconductor body, each trench including one or more electrodes formed therein. In particular, according to embodiments of the invention, the plurality of trenches of a semiconductor device may include one or more gate electrodes, may include one or more gate electrodes or one or more source electrodes, or may include a combination of both gate and source electrodes formed therein. The trenches and electrodes may have varying depths within the semiconductor body.