A layered semiconductor device capable of improving production yield and a method for producing the layered semiconductor device. The layered semiconductor device has, layered therein, a plurality of semiconductor chips, a reserve semiconductor chip which is used as a reserve for the semiconductor chips, and a control chip for controlling the operating states of the plurality of semiconductor chips and the operating state of the reserve semiconductor chip. The semiconductor chips and the reserve semiconductor chip include contactless communication units and operating switches, and are capable of contactlessly communicating with another of the semiconductor chips via the contactless communication units. The control chip controls the operating states of the semiconductor chips by switching the operating switches of the semiconductor chips, and controls the operating state of the reserve semiconductor chip by switching the operating switch of the reserve semiconductor chip.

A semiconductor device comprises an embedded flash memory with row redundancy. The embedded flash memory comprises a memory bank that includes multiple physical sectors, where each physical sector comprises a plurality of erase sectors. In the memory bank, multiple portions of an additional erase sector are respectively distributed among the multiple physical sectors. The multiple portions of the additional erase sector are configured as a row-redundancy sector for the memory bank.

A memory device includes a memory cell region that includes a normal cell array and a redundant cell array, a fuse unit that includes a plurality of fuse sets corresponding to the redundant cell array, for programming an address of a repair target memory cell of the normal cell array, and a deciding unit suitable for determining fuse sets that are used in a first operation mode, among the plurality of the fuse sets, according to a control signal.

A memory device is disclosed. The memory device includes a memory array. The memory array includes a main memory block and an extra memory block. The memory array includes a main bit line and an extra bit line. A ratio of a quantity of the extra memory block to a quantity of the main memory block is a block quantity ratio A. A ratio of a quantity of the extra bit line to a quantity of the main bit line is a bit line quantity ratio B. The block quantity ratio A is larger than the bit line quantity ratio B.

A memory device is disclosed. The memory device includes a memory array. The memory array includes a main memory block and an extra memory block. The memory array includes a main bit line and an extra bit line. A ratio of a quantity of the extra memory block to a quantity of the main memory block is a block quantity ratio A. A ratio of a quantity of the extra bit line to a quantity of the main bit line is a bit line quantity ratio B. The block quantity ratio A is larger than the bit line quantity ratio B.

An electrical fuse (E-fuse) circuit is disclosed, which relates to a technology for processing a failed part of the E-fuse circuit. The E-fuse circuit may be configured to detect failed data and or store a failed address.

A method for determining redundancy usage rate from a group of memory parameters and a memory yield of a System on a Chip (SoC), using the probabilistic redundancy usage rate and using that rate to calculate an optimal RSMA size. An SoC is then fabricated with the optimal RSMA size.

A memory device includes at least one memory bank comprising a set of redundant word lines, a set of normal word lines, and row hammer refresh logic. The RHR logic comprises a first input to receive a first signal indicative of whether a match was generated at a fuse of the memory device, a second input to receive a redundant row address corresponding to a first location of a memory array of the memory device, a third input to receive a word line address corresponding to a second location of the memory array of the memory device. The RHR logic also comprises an output to transmit at least one first memory address adjacent to the first location or at least one second memory address adjacent to the second location based on a value of the first signal.

A memory system may include a memory module comprising a plurality of memory chips mounted therein each memory chip comprising a plurality of banks, the memory chips being simultaneously accessible based on the same command and address; and a memory controller suitable for mapping the banks of the memory chips to each other while rearranging an order of the banks of each of the memory chips based on repair information of the memory chips.

Techniques are disclosed for achieving size reduction of embedded memory arrays through determining a spare-core layout. In an embodiment, input parameters comprising global process parameters are combined with design characteristics to compute yield values corresponding to potential redundancy configurations for a die. Resulting yields may be compared to determine which redundancy configuration is suitable to maintain a particular yield. A die configured with one or more spare cores (with no redundant memory therein) results in a yield which is equivalent to, or exceeds, the yield of a die with conventional memory redundancies. In some example cases, memory redundancy is eliminated from cores. Another embodiment provides a semiconductor structure having including an array of redundant cores, each including a composition of memory arrays and logic structures, wherein at least one of the memory arrays of each redundant core is implemented without at least one of row redundancy and column redundancy.