Abstract:
A negative wordline DRAM array having n groups of m wordlines, in which one group is driven by a group decoder circuit (having a voltage swing between ground and a circuit high voltage (2 v)) and one driver circuit in each group is exposed to a boosted wordline high voltage (2.8 v) greater than the circuit high voltage, in which the wordline driver circuits have an output stage comprising a standard nfet in series with a high threshold voltage pfet, so that, during activation, the unselected driver circuits exposed to the boosted wordline high voltage have a very low leakage through the pfet, while the selected driver circuit has a high but tolerable leakage (2 &mgr;A) because Vqs on the nfet is nearly at the nfet threshold. The net active power from the entire array is less than that of a conventional configuration due to the reduced voltage swing, while the number of transistors exposed to high voltage stress is reduced from 9 to 1 and the number of buffer nfets required to reduce voltage drop across an active nfet is reduced from 8 to 1.
Abstract:
A method for generating a floating bitline test mode using digitally controllable bitline equalizers is provided. The method utilizes digitally controlled dummy timing cycles to detect a leaky bitline during the floating bitline test mode. A negative pulsed TEST signal is generated to cause the bitline equalizers to go low and cause the floating bitline state. The implementation of dummy timing cycles eliminates the need for additional external control of internal timings during a bitline test mode. Upon the termination of the dummy timing cycle, the normal read operation continues without interruption.
Abstract translation:提供一种使用数字可控位线均衡器产生浮动位线测试模式的方法。 该方法利用数字控制的虚拟定时周期来检测浮动位线测试模式期间的泄漏位线。 产生负脉冲+ E,ovs TEST + EE信号,使位线均衡器变为低电平,并导致浮置位线状态。 虚拟定时周期的实现消除了在位线测试模式期间对内部定时的额外外部控制的需要。 在虚拟定时周期结束时,正常读取操作继续而不中断。
Abstract:
A semiconductor structure to prevent gate wrap-around and corner parasitic leakage comprising a semiconductor substrate having a planar surface. A trench is located in the substrate, the trench having a sidewall. An intersection of the trench and the surface forms a corner. A dielectric lines the sidewall of the trench. And, a corner dielectric co-aligned with the corner extends a subminimum dimension distance over the substrate from the corner.
Abstract:
A latched row decoder for a Random Access Memory (RAM). The Decoder includes a set-reset latch that is set when addressed and remains set until reset by a PRE signal; address select logic; a reset device; and gated word line drives. The latch, when set, enables four word line drivers that are driven individually depending on two row address bits. During test, latched decoders may be selected sequentially and not reset, leaving drivers enabled until a test is complete. Thus some or all word lines may be driven simultaneously during test. A RAM including the latched decoder of the present invention has a normal random access mode and at least 4 test modes. The test modes are: Long t.sub.RAS word line disturb mode; toggled word line disturb mode; transfer gate stress mode; and a stress test mode.
Abstract:
The present invention is a bus arrangement for a wide I/O Random Access Memory (RAM). The bus arrangement includes a global address bus which drives row/column predecoders and redundancy comparators placed at each edge of the memory array. Two banks of sixteen data I/O (DQs), one bank for each half chip, are placed at either end of the chip providing up to a .times.32 I/O organization. The main Read/Write Data lines (RWD) are more densely populated near the chip edge than the chip center to provide .times.4 and .times.8 options, as well. A local address bus is in the open space between the RWDs to redrive the global address lines at their quarter points.
Abstract:
The present invention encompasses monoclonal and chimeric antibodies that bind to lipoteichoic acid of Gram positive bacteria. The antibodies also bind to whole bacteria and enhance phagocytosis and killing of the bacteria in vitro and enhance protection from lethal infection in vivo. The mouse monoclonal antibody has been humanized and the resulting chimeric antibody provides a previously unknown means to diagnose, prevent and/or treat infections caused by gram positive bacteria bearing lipoteichoic acid. This invention also encompasses a peptide mimic of the lipoteichoic acid epitope binding site defined by the monoclonal antibody. This epitope or epitope peptide mimic identifies other antibodies that may bind to the lipoteichoic acid epitope. Moreover, the epitope or epitope peptide mimic provides a valuable substrate for the generation of vaccines or other therapeutics.
Abstract:
The present invention describes the preparation and use of biologically and immunologically active humanized monoclonal antibodies to Shiga toxin, a toxin associated with HC and the potentially life-threatening sequela HUS transmitted by strains of pathogenic bacteria. The present invention describes how these humanized antibodies may be used in the treatment or prevention of Shiga toxin induced diseases. One aspect of the invention is the humanized monoclonal antibody which binds Shiga toxin where the constant regions are IgG1-kappa and the variable regions are murine in origin. Yet another aspect of the invention is expression vectors and host cells transformed with such vectors which express the humanized monoclonal antibodies of the present invention.
Abstract:
Disclosed are antibodies that provide superior anti-coagulant activity by binding native human TF with high affinity and specificity. Also disclosed are methods of using such antibodies to reduce cancer cell tissue factor activity and to detect cancer cells that express TF.
Abstract:
The invention discloses a low-power ternary CAM by utilizing four encoded comparand datalines, C0, C1, C2, and C3 in a twin ternary cell. The twin ternary cell is a composite of two ternary CAM bits. The two binary CAM bits are coded so that only one of four comparand datalines is toggled during a compare operation. The encoded data is stored and used for comparison. In one embodiment, the four possible states for the 2 bit comparands are coded as 0001, 0010, 0100, and 1000.
Abstract:
DRAM with column slices improves circuit redundancy. Slices have global column length, and memory is divided in groups with size of redundancy columns having slices. Failure detected among slices of corresponding storage is replaced by corresponding redundancy column slice, such that column redundancy division is in vertical column direction. Column includes global data line shared by column slices and multiple blocks. Redundant column is added to memory array, and redundant control circuits or comparator are proximate to data sense amplifiers. Defective column address are provided to controller through non-volatile memory, or laser-blown or electrically-programmable fuses. When column address is presented, incoming address is compared with stored address, such that select data is output on redundant data line when equal addresses (i.e., hit detect), or normal data is output when unequal addresses (i.e., "miss" detected).