Abstract:
A system and method for providing a memory cell on a semiconductor is disclosed. In one aspect, the method and system include providing at least one gate stack on the semiconductor, depositing at least one spacer, and providing at least one source implant in the semiconductor. The at least one gate stack has an edge. A portion of the at least one spacer is disposed along the edge of the at least one gate stack. In another aspect, the method and system include providing at least one gate stack on the semiconductor, providing a first junction implant in the semiconductor, depositing at least one spacer, and providing a second junction implant in the semiconductor after the at least one spacer is deposited. The at least one gate stack has an edge. A portion of the at least one spacer is disposed at the edge of the at least one gate stack. In a third aspect, the method and system include providing at least one gate stack on the semiconductor, providing at least one source implant in the semiconductor, depositing at least one spacer after the at least one source implant is provided, and providing at least one drain implant in the semiconductor after the spacer is deposited. The at least one gate has an edge. A portion of the at least one spacer is disposed along the edge of the at least one gate.
Abstract:
A system and method for providing a memory cell on a semiconductor is disclosed. In one aspect, the method and system include providing at least one gate stack on the semiconductor, depositing at least one spacer, and providing at least one source implant in the semiconductor. The at least one gate stack has an edge. A portion of the at least one spacer is disposed along the edge of the at least one gate stack. In another aspect, the method and system include providing at least one gate stack on the semiconductor, providing a first junction implant in the semiconductor, depositing at least one spacer, and providing a second junction implant in the semiconductor after the at least one spacer is deposited. The at least one gate stack has an edge. A portion of the at least one spacer is disposed at the edge of the at least one gate stack. In a third aspect, the method and system include providing at least one gate stack on the semiconductor, providing at least one source implant in the semiconductor, depositing at least one spacer after the at least one source implant is provided, and providing at least one drain implant in the semiconductor after the spacer is deposited. The at least one gate has an edge. A portion of the at least one spacer is disposed along the edge of the at least one gate.
Abstract:
A method and system for providing a flash memory cell on a semiconductor is disclosed. In one aspect, the method and system include providing a plurality of gate stacks and providing a drain implant at an angle. The plurality of gate stacks define a plurality of drain areas and a plurality of source areas. The angle is measured from a direction perpendicular to the surface of the semiconductor. The angle allows the plurality of gate stacks to block the drain implant from reaching the plurality of source areas. In another aspect, the method and system include providing a plurality of gate stacks and providing a source implant at an angle. The plurality of gate stacks define a plurality of drain areas and a plurality of source areas. The angle is measured from a direction perpendicular to the surface of the semiconductor. The angle allows the plurality of gate stacks to block the source implant from reaching the plurality of drain areas.
Abstract:
A system and method for providing a flash memory cell on a semiconductor substrate are disclosed. The system and method include providing a side implant and providing an implant in at least one of a drain or a source of the flash memory cell.
Abstract:
A system and method for providing at least one memory cell on a semiconductor is disclosed. The method and system include providing a tunneling barrier on the semiconductor, providing at least one floating gate having a corner, and oxidizing the tunneling barrier, a portion of the semiconductor, and the at least one floating gate. A portion of the at least one floating gate including the corner is disposed above the tunneling barrier. The portion of the semiconductor oxidizes at a first rate and at least the corner of the at least one floating gate oxidizes at a second rate. The second rate is sufficiently higher than the first rate to provide a desired thickness of the tunneling barrier a distance from the corner of the at least one floating gate for a particular rounding of the corner of the at least one floating gate.
Abstract:
A semiconductor device is disclosed having a conductive gate structure overlying a semiconductor layer having a major surface. An isolation material is recessed within a trench region below the major surface of the semiconductor layer. An epitaxial layer is formed overlying a portion of the major surface and on an active region forming a sidewall of the trench.
Abstract:
A method for constraining lateral growth of gate caps formed during an epitaxial silicon growth process to achieve raised source/drain regions on poly silicon is presented. The method is appropriate for integration into a manufacturing process for integrated circuit semiconductor devices. The method utilizes selective etch processes, dependant upon the material comprising the protective layer (hard mask) over the gate and the material of the spacers, e.g., oxide mask/nitride spacers, or nitride mask/oxide spacers.
Abstract:
A method for constraining lateral growth of gate caps formed during an epitaxial silicon growth process to achieve raised source/drain regions on poly silicon is presented. The method is appropriate for integration into a manufacturing process for integrated circuit semiconductor devices. The method utilizes selective etch processes, dependant upon the material comprising the protective layer (hard mask) over the gate and the material of the spacers, e.g., oxide mask/nitride spacers, or nitride mask/oxide spacers.
Abstract:
A method is provided, the method including forming a gate dielectric above a surface of the substrate and forming a doped-poly gate structure above the gate dielectric, the doped-poly gate structure having an edge region. The method also includes forming a dopant-depleted-poly region in the cage region of the doped-poly gate structure adjacent the gate dielectric.
Abstract:
A static random access memory cell is provided formed in a silicon layer over a buried oxide layer on a substrate and including first and second inverters each having a pull-up and pull-down transistor configured to form a cell node. Each of the pull-down transistors of the first and second inverters are formed over first regions below the buried oxide layer with the first regions having a first doping level forming first backgates for the pull-down transistors. A pair of passgate transistors respectively couples to the cell nodes of the first and second inverters and each are formed over second regions below the buried oxide layer with the second regions having a second doping level forming second backgates for the passgate transistors. Active bias circuitry applies potentials to the first and second backgates during read, standby and write operations of the static random access memory cell.