摘要:
A semiconductor memory device includes a substrate of a first impurity type, a first well region of a second impurity type in the substrate, the second impurity type being different from the first impurity type, a second well region of the first impurity type in the substrate, a patterned first dielectric layer on the substrate extending over the first and second well regions, a patterned first gate structure on the patterned first dielectric layer, a patterned second dielectric layer on the patterned first gate structure, and a patterned second gate structure on the patterned second dielectric layer. The patterned first gate structure may include a first section extending in a first direction and a second section extending in a second direction orthogonal to the first section, wherein the first section and the second section intersects each other in a cross pattern. The patterned second gate structure may include at least one of a first section extending in the first direction over the first section of the patterned first gate structure or a second section extending in the second direction over the second section of the patterned first gate structure.
摘要:
A lateral-double diffused MOS device is provided. The device includes: a first well having a first conductive type and a second well having a second conductive type disposed in a substrate and adjacent to each other; a drain and a source regions having the first conductive type disposed in the first and the second wells, respectively; a field oxide layer (FOX) disposed on the first well between the source and the drain regions; a gate conductive layer disposed over the second well between the source and the drain regions extending to the FOX; a gate dielectric layer between the substrate and the gate conductive layer; a doped region having the first conductive type in the first well below a portion of the gate conductive layer and the FOX connecting to the drain region. A channel region is defined in the second well between the doped region and the source region.
摘要:
A nonvolatile memory integrated circuit has a semiconductor substrate and a nonvolatile memory device on the semiconductor substrate. The device has a transistor and a capacitor on the semiconductor substrate, and a shared floating gate connecting the gate regions of the transistor and the capacitor. The transistor has at least a doping region defining the source and drain regions, as well as three other doping regions overlapping the source and drain regions. Also disclosed are a nonvolatile memory circuit with multiple such nonvolatile memory device, and methods for making the nonvolatile memory circuit with one or more such nonvolatile memory devices.
摘要:
A lateral-double diffused MOS device is provided. The device includes: a first well having a first conductive type and a second well having a second conductive type disposed in a substrate and adjacent to each other; a drain and a source regions having the first conductive type disposed in the first and the second wells, respectively; a field oxide layer (FOX) disposed on the first well between the source and the drain regions; a gate conductive layer disposed over the second well between the source and the drain regions extending to the FOX; a gate dielectric layer between the substrate and the gate conductive layer; a doped region having the first conductive type in the first well below a portion of the gate conductive layer and the FOX connecting to the drain region. A channel region is defined in the second well between the doped region and the source region.
摘要:
A nonvolatile memory integrated circuit has a semiconductor substrate and a nonvolatile memory device on the semiconductor substrate. The device has a transistor and a capacitor on the semiconductor substrate, and a shared floating gate connecting the gate regions of the transistor and the capacitor. The transistor has at least a doping region defining the source and drain regions, as well as three other doping regions overlapping the source and drain regions. Also disclosed are a nonvolatile memory circuit with multiple such nonvolatile memory device, and methods for making the nonvolatile memory circuit with one or more such nonvolatile memory devices.
摘要:
A nonvolatile memory integrated circuit has a semiconductor substrate and a nonvolatile memory device on the semiconductor substrate. The device has a transistor and a capacitor on the semiconductor substrate, and a shared floating gate connecting the gate regions of the transistor and the capacitor. The transistor has at least a doping region defining the source and drain regions, as well as three other doping regions overlapping the source and drain regions. Also disclosed are a nonvolatile memory circuit with multiple such nonvolatile memory device, and methods for making the nonvolatile memory circuit with one or more such nonvolatile memory devices.
摘要:
A lateral-double diffused MOS device is provided. The device includes: a first well having a first conductive type and a second well having a second conductive type disposed in a substrate and adjacent to each other; a drain and a source regions having the first conductive type disposed in the first and the second wells, respectively; a field oxide layer (FOX) disposed on the first well between the source and the drain regions; a gate conductive layer disposed over the second well between the source and the drain regions extending to the FOX; a gate dielectric layer between the substrate and the gate conductive layer; a doped region having the first conductive type in the first well below a portion of the gate conductive layer and the FOX connecting to the drain region. A channel region is defined in the second well between the doped region and the source region.
摘要:
A nonvolatile memory integrated circuit has a semiconductor substrate and a nonvolatile memory device on the semiconductor substrate. The device has a transistor and a capacitor on the semiconductor substrate, and a shared floating gate connecting the gate regions of the transistor and the capacitor. The transistor has at least a doping region defining the source and drain regions, as well as three other doping regions overlapping the source and drain regions. Also disclosed are a nonvolatile memory circuit with multiple such nonvolatile memory device, and methods for making the nonvolatile memory circuit with one or more such nonvolatile memory devices.