摘要:
Memory devices include a plurality of elongate gate stacks extending in parallel on a substrate and at least one insulation region disposed in a trench between adjacent ones of the gate stacks. The at least one insulation region has linear first portions having a first width and widened second portions having a second width greater than the first width. A common source region is disposed in the substrate underlying the at least one insulation region. The devices further include respective conductive plugs passing through respective ones of the widened second portions of the at least one insulation region and electrically connected to the common source region and at least one strapping line disposed on the conductive plugs between the adjacent ones of the gate stacks and in direct contact with the conductive plugs.
摘要:
Memory devices include a plurality of elongate gate stacks extending in parallel on a substrate and at least one insulation region disposed in a trench between adjacent ones of the gate stacks. The at least one insulation region has linear first portions having a first width and widened second portions having a second width greater than the first width. A common source region is disposed in the substrate underlying the at least one insulation region. The devices further include respective conductive plugs passing through respective ones of the widened second portions of the at least one insulation region and electrically connected to the common source region and at least one strapping line disposed on the conductive plugs between the adjacent ones of the gate stacks and in direct contact with the conductive plugs.
摘要:
A method of adjusting a threshold voltage of a ground selection transistor in a nonvolatile memory device includes providing a first voltage to a gate of a first ground selection transistor in a read operation and providing a second voltage to a gate of a second ground selection transistor in the read operation. The nonvolatile memory device includes at least one string, the string having string selection transistors, memory cells and the first and second ground selection transistors connected in series and stacked on a substrate.
摘要:
A method of forming a semiconductor device includes forming a trench on a semiconductor substrate to define an active region, forming a radical oxide layer on a sidewall and a bottom surface of the trench, and forming a nitride layer on the radical oxide layer. The conduction band offset of the radical oxide layer is greater than the conduction band offset of a thermal oxide layer having the same thickness as the radical oxide layer.
摘要:
A method of forming a semiconductor device includes forming a trench on a semiconductor substrate to define an active region, forming a radical oxide layer on a sidewall and a bottom surface of the trench, and forming a nitride layer on the radical oxide layer. The conduction band offset of the radical oxide layer is greater than the conduction band offset of a thermal oxide layer having the same thickness as the radical oxide layer.