摘要:
In a transistor structure a buried gate positioned in the layer above a conduction channel and below a broad gate which overlaps the source and drain, when the voltages applied to the buried gate and the overlapping gate are varied independently, a potential well between two barriers can be established which permits conduction by the physical mechanism of resonant transmission. The potential well between two barriers required for the resonant transmission mechanism is achieved in one structure by a buried gate under an overlapping gate with both width and separation dimension control and in a second structure using split-buried gate under an overlapping gate that is embossed in the region of the split gate. With gate and separation dimensions of the order of 1000 .ANG. switching speeds of the order of 10.sup.-12 seconds are achieved.
摘要:
A process for defining small dimensions by forming a vertical step in an etchable material; edge depositing a masking material by angularly evaporating a metal; and etching away all of the first material not covered by the masking material; and device obtained by depositing source, drain, and gate defining material.
摘要:
A method for branch prediction, the method comprising, receiving a branch wrong guess instruction having a branch wrong guess instruction address and data including an opcode and a branch target address, determining whether the branch wrong guess instruction was predicted by a branch prediction mechanism, sending the branch wrong guess instruction to an execution unit responsive to determining that the branch wrong guess instruction was predicted by the branch prediction mechanism, and receiving and decoding instructions at the branch target address.
摘要:
A method for branch prediction, the method comprising, receiving a branch wrong guess instruction having a branch wrong guess instruction address and data including an opcode and a branch target address, determining whether the branch wrong guess instruction was predicted by a branch prediction mechanism, sending the branch wrong guess instruction to an execution unit responsive to determining that the branch wrong guess instruction was predicted by the branch prediction mechanism, and receiving and decoding instructions at the branch target address.
摘要:
A display device, addressing circuitry, and semiconductor control logic are all portions of an integrated structure formed by thin film technology on a single silicon wafer. The display comprises a thin film micromechanical electrostatic form of light reflective display formed by depositing thin films upon a silicon wafer and selectively etching to form metal-amorphous oxide micromechanical leaves deflected by applying potential thereto to provide electrostatic deflection. MOSFET devices are also formed upon the silicon wafer in juxtaposition with a plurality of micromechanical display elements. Addressing circuitry is connected to the MOSFET devices.
摘要:
Three-dimensional (3-D) processor devices are provided, which are constructed by connecting processors in a stacked configuration. For instance, a processor system includes a first processor chip comprising a first processor and a second processor chip comprising a second processor. The first and second processor chips are connected in a stacked configuration with the first and second processors connected through vertical connections between the first and second processor chips. The processor system further includes a mode control circuit to selectively operate the processor system in one of a plurality of operating modes. For example, in a one mode of operation, the first and second processors are configured to implement a run-ahead function, wherein the first processor operates a primary thread of execution and the second processor operates a run-ahead thread of execution.
摘要:
A method for branch prediction, the method comprising, receiving a load instruction including a first data location in a first memory area, retrieving data including a branch address and a target address from the first data location data location, and saving the data in a branch prediction memory.
摘要:
A two level branch history table (TLBHT) is substantially improved by providing a mechanism to prefetch entries from the very large second level branch history table (L2 BHT) into the active (very fast) first level branch history table (L1 BHT) before the processor uses them in the branch prediction process and at the same time prefetch cache misses into the instruction cache. The mechanism prefetches entries from the very large L2 BHT into the very fast L1 BHT before the processor uses them in the branch prediction process. A TLBHT is successful because it can prefetch branch entries into the L1 BHT sufficiently ahead of the time the entry is needed. This feature of the TLBHT is also used to prefetch instructions into the cache ahead of their use. In fact, the timeliness of the prefetches produced by the TLBHT can be used to remove most of the cycle time penalty incurred by cache misses.
摘要:
A three-dimensional (3-D) processor system includes a first processor chip and a second processor chip in a stacked configuration. The first processor chip includes a first processor having a first set of state registers. The second processor chip includes a second processor having a second set of state registers that corresponds to the first set of state registers. The first and second processors are connected through vertical connections between the first and second processor chips. A mode control circuit operates the processor system in one of a plurality of operating modes. In one mode of operation, the first processor is active and the second processor is inactive, and the first processor operates at a speed greater than a maximum safe speed of the first processor, and the first processor uses the second set of state registers of the second processor to checkpoint a state of the first processor.
摘要:
A three-dimensional (3-D) processor system includes a first processor chip and a second processor chip in a stacked configuration. The first processor chip includes a first processor having a first set of state registers. The second processor chip includes a second processor having a second set of state registers that corresponds to the first set of state registers. The first and second processors are connected through vertical connections between the first and second processor chips. A mode control circuit operates the processor system in one of a plurality of operating modes. In one mode of operation, the first processor is active and the second processor is inactive, and the first processor operates at a speed greater than a maximum safe speed of the first processor, and the first processor uses the second set of state registers of the second processor to checkpoint a state of the first processor.