Abstract:
An area saving electrically-erasable-programmable read-only memory (EEPROM) array, having: a plurality of parallel bit lines, a plurality of parallel word lines, and a plurality of parallel common source lines. The bit lines are classified into a plurality of bit line groups, containing a first group bit lines and a second group bit lines; the word line includes a first word line; and the common source lines include a first common source line. In addition, a plurality of sub-memory arrays are provided. Each sub-memory array contains a first, second, third, and fourth memory cells. Wherein, the first and second memory cells are symmetrically arranged, and the third and fourth memory cells are symmetrically arranged; also, the first and second memory cells, and the third and fourth memory cells are symmetrically arranged with the first common source line as a symmetric axis.
Abstract:
Disclosed is a geographic location identify system with open-type identifier, and further a related method for generating the identifier. One object of the geographic location identify system is to depict information of a spot on a geographic space with open-type identifier that is user-customized with privileged-setting. The system preferably includes a data processing means for processing geographic data by a computer system, and a network connecting means for connecting to plural terminal computers. After a user inputs an open-type geographic location identifier, a means for encoding/decoding is to encode or decode the identifier. A database unit is further included to store the identifier data after encoding. A comparing means is used to compare the identifier data with the input identifier, and a visual presentation generating means is to generate an electronic map, and through the database unit providing the spot related information, based on the user's request.
Abstract:
A non-volatile memory with single floating gate and the method for operating the same are proposed. The non-volatile memory is formed by embedding a FET structure in a semiconductor substrate. The FET comprises a single floating gate, a dielectric, and two ion-doped regions in the semiconductor at two sides of the dielectric. The memory cell of the proposed nonvolatile memory with single floating gate can perform many times of operations such as write, erase and read by means of a reverse bias.
Abstract:
A single-gate non-volatile memory and an operation method thereof, wherein a transistor and a capacitor structure are embedded in a semiconductor substrate; the transistor comprises: a first electrically-conductive gate, a first dielectric layer, and multiple ion-doped regions; the capacitor structure comprises: a second electrically-conductive gate, a second dielectric layer, and a second on-doped region; the first electrically-conductive gate and the second electrically-conductive gate are interconnected to form a single floating gate of a memory cell; a reverse bias is used to implement the reading, writing, and erasing operations of the single-floating-gate memory cell; in the operation of a single-gate non-volatile memory with an isolation well, positive and negative voltages are applied to the drain, the gate, and the silicon substrate/the isolation well to create an inversion layer so that the absolute voltage, the area of the voltage booster circuit, and the current consumption can be reduced.
Abstract:
A non-volatile memory structure and a method for operating the same are proposed. The non-volatile memory structure makes use of a single floating gate structure and a capacitor structure including a pair of regions doped with different type impurities to increase the capacitance and shrink the area. When performing programming operations to this memory structure, a voltage is applied to the source or a back bias is applied to the substrate of the transistor to greatly reduce the current requirement of a single-gate EEPROM device. When performing erase operations, the drain voltage is raised, and a small voltage is added to the gate to increase the F-N tunneling current, thereby accomplishing the effect of fast erase.
Abstract:
A high storage capacity, wide data channel SRAM having a 64-bit wide data input/output channel, 4 Mbyte or 2 Mbyte of memory, and packaged as a 100-pin QFP or TQFP. The SRAM can be a substitute for a conventional 128 pin QFP or TQFP SRAM because all the functions including pipeline burst transmission are present. Moreover, the SRAM has a comparatively lower package testing and production cost.