摘要:
A device for controlling the voltage across an NMOS pull-up transistor including a source node which may be exposed to a variable voltage. The device further includes a gate node which may be exposed to a variable voltage. A control portion regulates the voltage applied to the gate node, wherein a differential in voltage between the source node and the gate node is limited to a desired level.
摘要:
The present invention is directed to a one-transistor non-volatile DRAM cell (10, 40, 66, 79) having a two layer floating gate (14) to allow the contents of a storage capacitor (28) to be transferred to the floating gate (14) during power interruptions. The first layer (18) of the floating gate (14) is separated from a storage node (32) of the storage capacitor (28) by a tunnel oxide (92) to allow electron tunnelling between the floating gate (14) and the storage capacitor (32). In another embodiment of the present invention, a dual electron injector structure (44) is disposed between a one layer floating gate (42) and the storage node (32) to allow electrons to be injected between the floating gate (42) and the storage node (32). In another embodiment of the present invention, an erase gate (70) is implemented to remove the charge on the floating gate (14, 42). The erase gate (70) can be separated from the floating gate (14, 42) by a tunnel oxide (92) or a single electron injector structure (44) to allow electrons to travel from the floating gate (14, 42) to the erase gate (70).
摘要:
In a Field Effect Transistor (FET) the use of a high T c oxide superconductor material in the gate electrode (8) provides both control of parasitic resistance and capacitance and a proper work function when operated at a temperature below the T c . The 1-2-3 compound oxide superconductors with the general formula Y 1 Ba 2 Cu 3 O 7-y where y is approximately 0.1 have the ability in use in FET's to provide convenient work functions, low resistance and capacitance, and to withstand temperatures encountered in processing as the FET is being manufactured.
摘要:
In a Field Effect Transistor (FET) the use of a high T c oxide superconductor material in the gate electrode (8) provides both control of parasitic resistance and capacitance and a proper work function when operated at a temperature below the T c . The 1-2-3 compound oxide superconductors with the general formula Y 1 Ba 2 Cu 3 O 7-y where y is approximately 0.1 have the ability in use in FET's to provide convenient work functions, low resistance and capacitance, and to withstand temperatures encountered in processing as the FET is being manufactured.
摘要:
A device for controlling the voltage across an NMOS pull-up transistor including a source node which may be exposed to a variable voltage. The device further includes a gate node which may be exposed to a variable voltage. A control portion regulates the voltage applied to the gate node, wherein a differential in voltage between the source node and the gate node is limited to a desired level.
摘要:
The present invention is directed to a one-transistor non-volatile DRAM cell (10, 40, 66, 79) having a two layer floating gate (14) to allow the contents of a storage capacitor (28) to be transferred to the floating gate (14) during power interruptions. The first layer (18) of the floating gate (14) is separated from a storage node (32) of the storage capacitor (28) by a tunnel oxide (92) to allow electron tunnelling between the floating gate (14) and the storage capacitor (32). In another embodiment of the present invention, a dual electron injector structure (44) is disposed between a one layer floating gate (42) and the storage node (32) to allow electrons to be injected between the floating gate (42) and the storage node (32). In another embodiment of the present invention, an erase gate (70) is implemented to remove the charge on the floating gate (14, 42). The erase gate (70) can be separated from the floating gate (14, 42) by a tunnel oxide (92) or a single electron injector structure (44) to allow electrons to travel from the floating gate (14, 42) to the erase gate (70).
摘要:
A radiation tolerant semiconductor device has a buried grid (11) of enhanced concentration of an impurity type opposite to that of the semiconductor substrate. Such a device may be made by providing beneath the upper surface of a semiconductor substrate a continuous region (12, 13) of a first impurity type which is the same as that of the semiconductor substrate, the region having an array of regularly spaced via portions (13) at a depth beneath the surface greater than the depth of the remainder of the region (12), and providing at a depth substantially coincident with the via portions (13) a second impurity of conductivity type opposite to that of the first impurity at a dosage level lower than that of the first impurity to form the buried grid (11).