Abstract:
A semiconductor chip (100) has an independently voltage controlled silicon region (110) that is a circuit element useful for controlling capacitor values of eDRAM trench capacitors (140) and threshold voltages of field effect transistors (130) overlying the independently voltage controlled silicon region (110). A bottom, or floor, of the independently voltage controlled silicon region (110) is a deep implant (105) of opposite doping to a doping of a substrate of the independently voltage controlled silicon region (110). A top, or ceiling, of the independently voltage controlled silicon region (110) is a buried oxide (103) implant in the substrate. Sides of the independently voltage controlled silicon region are deep trench isolation (106). Voltage of the independently voltage controlled silicon region (110) is applied through a contact structure (107) formed through the buried oxide (103).
Abstract:
A semiconductor chip has an independently voltage controlled silicon region that is a circuit element useful for controlling capacitor values of eDRAM trench capacitors and threshold voltages of field effect transistors overlying the independently voltage controlled silicon region. A bottom, or floor, of the independently voltage controlled silicon region is a deep implant of opposite doping to a doping of a substrate of the independently voltage controlled silicon region. A top, or ceiling, of the independently voltage controlled silicon region is a buried oxide implant in the substrate. Sides of the independently voltage controlled silicon region are deep trench isolation. Voltage of the independently voltage controlled silicon region is applied through a contact structure formed through the buried oxide.
Abstract:
Ein Halbleiterchip (100) weist eine unabhängig spannungsgesteuerte Siliciumzone (110) auf, welche ein Schaltungselement ist, das zum Steuern von Kondensatorwerten von eDRAM-Grabenkondensatoren (140) und Schwellenspannungen von Feldeffekttransistoren (130) geeignet ist, welche über der unabhängig spannungsgesteuerten Siliciumzone (110) liegen. Ein unterer Teil oder Boden der unabhängig spannungsgesteuerten Siliciumzone (110) ist eine tiefe Implantation (105) entgegengesetzter Dotierung, bezogen auf eine Dotierung eines Substrats der unabhängig spannungsgesteuerten Siliciumzone (110). Ein oberer Teil oder eine Decke der unabhängig spannungsgesteuerten Siliciumzone (110) ist eine Implantation eines vergrabenen Oxids (103) in dem Substrat. Seiten der unabhängig spannungsgesteuerten Siliciumzone sind eine Tiefgrabenisolierung (106). Die Spannung der unabhängig spannungsgesteuerten Siliciumzone (110) wird durch eine Kontaktstruktur (107) angelegt, die durch das vergrabene Oxid (103) hindurch ausgebildet ist.
Abstract:
A semiconductor chip (100) has an independently voltage controlled silicon region (110) that is a circuit element useful for controlling capacitor values of eDRAM trench capacitors (140) and threshold voltages of field effect transistors (130) overlying the independently voltage controlled silicon region (110). A bottom, or floor, of the independently voltage controlled silicon region (110) is a deep implant (105) of opposite doping to a doping of a substrate of the independently voltage controlled silicon region (110). A top, or ceiling, of the independently voltage controlled silicon region (110) is a buried oxide (103) implant in the substrate. Sides of the independently voltage controlled silicon region are deep trench isolation (106). Voltage of the independently voltage controlled silicon region (110) is applied through a contact structure (107) formed through the buried oxide (103).