摘要:
A surgical instrument (10) is provided that includes a handle (18) defining a longitudinal axis (20). The handle has an outer surface (22) including a plurality of longitudinal fins (24) that define a plurality of longitudinal grooves (26) therebetween. At least one of the longitudinal fins may project radially from the outer surface of the handle. A pair of the fins may project radially from the outer surface of the handle and are diametrically opposed. A pair of the fins may be opposed and disposed in a plane tangential to the outer surface of the handle. Two separate pairs of the fins can project radially from the outer surface of the handle and are diametrically disposed. The two separate pairs are offset 90° relative to the longitudinal axis. Two separate pairs of the fins can be opposed and disposed in alternate planes tangential to the outer surface of the handle.
摘要:
A CMOS circuit has all-around dielectrically insulated source-drain regions. Trenches are formed in the source-drain regions. The trenches are etched onto the mono-crystalline silicon and filled with undoped or very lightly doped silicon. The completely or nearly completely depleted silicon in the trenches represents a dielectrically insulating layer and insulates the source-drain regions towards the adjacent silicon substrate.
摘要:
The MOS transistor has field plates and a subarea of the gate formed from the same polysilicon layer. A gate oxide lying underneath them is produced at the beginning of the fabrication process and it therefore exhibits particularly high quality. The polysilicon in the active area is raised to the same level as the adjoining field oxide areas, resulting in a planar topology.
摘要:
The high density integrated semiconductor memory has an EPROM cell in the form of a pillar. The cell has a floating gate and a control gate. The EPROM cell is dimensioned so thin that it is fully depleted. The control gate of the preferred split gate flash EPROM cell or of the dual gate flash EPROM cell is composed of p.sup.+ -doped semiconductor material, so that the fully depleted cylinders exhibit superior lower threshold behavior.
摘要:
A CMOS semiconductor structure and a process for producing the structure permit particularly simple, self-aligned contact-hole etching. Magnetoresistors are fully encased by a nitride layer and a lateral covering, so that the magnetoresistors are protected even in the event of misaligned contact-hole etching. The magnetoresistors, which are formed from a polysilicon layer, are etched back laterally by isotropic etching and a dielectric layer is conformally deposited so that the etched-back magnetoresistor region is thereby filled. The dielectric layer is then removed again by isotropic etching outside the etched-back magnetoresistor regions.
摘要:
A method of manufacturing a semiconductor component, wherein capacitances occurring between contacts, interconnects or metallizations are reduced by filling cavities with air or gas is provided. The cavities are produced between the semiconductor material and a passivation layer in a region wherein the interconnects are surrounded by dielectric and are subsequently closed by a further passivation layer.
摘要:
The MOS transistor has field plates and a subarea of the gate formed from the same polysilicon layer. A gate oxide lying underneath them is produced at the beginning of the fabrication process and it therefore exhibits particularly high quality. The polysilicon in the active area is raised to the same level as the adjoining field oxide areas, resulting in a planar topology.
摘要:
A MOSFET is provided in the body silicon layer of an SOI substrate, for example as a mesa. A source region, a channel region, and a drain region are present. A gate electrode having a portion as a ridge on this channel region is also provided. For electrical connection of the channel region, a highly doped, preferably laterally arranged channel terminal region that is electrically conductively connected to the channel region and that has a contact applied thereon.