摘要:
A computer system is disclosed that includes a memory, a memory defect map, and a shift encoder. The memory includes a plurality of bits and a plurality of input/output ports for accessing the plurality of bits. The memory defect map specifies positions of defective ones of the plurality of bits. The shift encoder encodes positions of defective ones of the plurality of bits in a shift encoding. The shift encoding includes a shift redundancy record representing positions of transitions between functional bits and defective bits in the memory, and a hints record representing numbers of bits in sets of consecutive defective bits in the memory.
摘要:
Various semiconductor chip devices with stacked chips are disclosed. In one aspect, a semiconductor chip device is provided. The semiconductor chip device includes a first semiconductor chip that has a floor plan with a high heat producing area and a low heat producing area. At least one second semiconductor chip is stacked on the low heat producing area. The semiconductor chip device also includes means for transferring heat from the high heat producing area.
摘要:
An error correction module is disclosed whereby two bit cells are used to store a bit of information in a redundant manner so that a redundant error correction module can correct a sporadic data error at one of the two bits.
摘要:
During read operations of a column of RAM cells, a bitline is electrically broken into two sections. This reduces the capacitance that needs to be discharged by the RAM cell itself. A buffer is used during the read operation to relay data from one part of the split bitline to the other. A weak pullup path is also provided to hold the non-driven end of the line in a stable condition. During non-read operations, the two sections of bitline are electrically connected.
摘要:
A method for recovering failed bit cells in an integrated circuit memory is disclosed. In one embodiment, the method includes stress testing an integrated circuit having a memory, wherein the memory includes a plurality of bit cells. The method further includes holding at least one internal node of the selected one of the plurality of bit cells at a first predetermined state for a period sufficient to cause a shift in a threshold voltage of a transistor in the selected one of the plurality of bit cells.
摘要:
An error correction module is disclosed whereby two bit cells are used to store a bit of information in a redundant manner so that a redundant error correction module can correct a sporadic data error at one of the two bits.
摘要:
A content addressable memory includes a first plurality of search lines, a second plurality of search lines, a first match line, and a storage location. Each search line of the first plurality of search lines receives a corresponding high voltage level or low voltage level during a match detect operation, and each search line of the second plurality of search lines to receive a corresponding high voltage level or low voltage level during the match detect operation. The storage location of the content addressable memory includes a plurality of CAM cells, each CAM cell a first thyristor and second thyristor.
摘要:
A method for reducing power in an SRAM is achieved by applying a first voltage to all bitlines of a section of the SRAM in standby operation and applying a second voltage to all the bitlines of a section of the SRAM in normal operation. The first voltage is not greater than the second voltage.
摘要:
A static random-access memory (SRAM) comprises multi-port storage cells with built-in column-interleave selection circuitry which allow a storage cell to be written to via a plurality of different write paths. Column selects are built into each storage cell by adding an additional isolating switch between the storage node of the storage cell and the bitline of a particular write path in order to prevent a cell write from affecting other storage cells connected to the same wordline in the same interleaved array. The write data bus corresponding to each write path for all interleaved cells are shared by all storage cells in a common interleave group, and each adjacent pair of storage cells in a common row share bitlines coupled to the common data bus, resulting in smaller number of required bitlines.
摘要:
Various semiconductor chip devices with stacked chips are disclosed. In one aspect, a semiconductor chip device is provided. The semiconductor chip device includes a first semiconductor chip that has a floor plan with a high heat producing area and a low heat producing area. At least one second semiconductor chip is stacked on the low heat producing area. The semiconductor chip device also includes means for transferring heat from the high heat producing area.