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    • 61. 发明授权
    • Efficient dual port DRAM cell using SOI technology
    • 使用SOI技术的高效双端口DRAM单元
    • US06317358B1
    • 2001-11-13
    • US09632265
    • 2000-08-03
    • Brent Keeth
    • Brent Keeth
    • G11C1124
    • G11C8/16
    • A dual port memory cell having reduced architecture utilizing silicon on insulator is provided. Each storage capacitor has respective access transistors, for connecting the storage capacitor to two separate digit lines. One of the access transistors connects the capacitor to a first digit line which runs above the silicon on insulator layer while the second access transistor connects the capacitor to a second digit line which runs below the silicon on insulator structure.
    • 提供了一种使用绝缘体上硅的结构减小的双端口存储单元。 每个存储电容器具有各自的存取晶体管,用于将存储电容器连接到两个分开的数字线。 一个存取晶体管将电容器连接到在绝缘体上硅层上方延伸的第一数字线,而第二存取晶体管将电容器连接到位于绝缘体上硅结构之下的第二数字线。
    • 62. 发明授权
    • Semiconductor memory circuitry including die sites for 16M to 17M memory cells in an 8″ wafer
    • 半导体存储器电路包括用于8“晶圆中的16M至17M存储单元的裸片位置
    • US06288421B1
    • 2001-09-11
    • US08929585
    • 1997-09-15
    • Brent KeethPierre C. Fazan
    • Brent KeethPierre C. Fazan
    • H01L27108
    • H01L27/105H01L27/108H01L27/10811Y10T29/49121
    • Processes are disclosed which facilitate improved high density memory circuitry, most preferably dynamic random access memory (DRAM) circuitry. In accordance with aspects of the invention, considerably greater numbers of die sites per wafer are achieved for 6 inch, 8 inch and 12 inch wafers for 4 M, 16 M, 64 M and 256 M integration levels. Further, a semiconductor memory device includes, i) a plurality of functional and operably addressable memory cells arranged in multiple memory arrays formed on a semiconductor die; and ii) circuitry formed on the semiconductor die permitting data to be written to and read from one or more of the memory cells, at least one of the memory arrays containing at least 100 square microns of continuous die surface area having at least 170 of the functional and operably addressable memory cells.
    • 公开了促进改进的高密度存储器电路,最优选动态随机存取存储器(DRAM)电路的方法。 根据本发明的方面,对于6M,16M,64M和256M积分级别的6英寸,8英寸和12英寸晶片,实现了相当大数量的每个晶片的晶片位置。 此外,半导体存储器件包括:i)布置在形成在半导体管芯上的多个存储器阵列中的多个功能和可操作地寻址的存储单元; 以及ii)形成在所述半导体管芯上的电路,允许将数据写入到所述存储器单元中的一个或多个存储单元并从其读取,所述存储器阵列中的至少一个包含至少100平方微米的连续管芯表面区域,其具有至少170个 功能和可操作地寻址的存储单元。
    • 63. 发明授权
    • Semiconductor memory remapping
    • 半导体存储器重映射
    • US6163490A
    • 2000-12-19
    • US401554
    • 1999-09-22
    • James M. ShafferBrent KeethEugene H. CloudSalman Akram
    • James M. ShafferBrent KeethEugene H. CloudSalman Akram
    • G11C7/00
    • Defective memory is programmed to have a contiguous address space by dividing the logical address space of the memory into a plurality of address sections. The address section containing the address mapped to a defective memory location is identified. The physical memory locations originally mapped to the addresses in the identified address section are remapped to addresses in an address section at one end of the address space. The addresses in the end address section are disabled. Alternatively, spare memory is provided and the addresses in the end address section are remapped to physical locations in the spare memory. A similar remapping procedure is applied to repair defective data paths in a memory. The remapping procedure is applicable to memory devices or memory modules.
    • 通过将存储器的逻辑地址空间划分成多个地址部分,将有缺陷的存储器编程为具有连续的地址空间。 识别包含映射到有缺陷的存储器位置的地址的地址部分。 最初映射到所识别的地址部分中的地址的物理存储器位置被重新映射到地址空间一端的地址段中的地址。 结束地址部分中的地址被禁用。 或者,提供备用存储器,并将结束地址部分中的地址重新映射到备用存储器中的物理位置。 应用类似的重新映射程序来修复存储器中的有缺陷的数据路径。 重映射过程适用于存储器或存储器模块。
    • 65. 发明授权
    • Integrated circuit data latch driver circuit
    • 集成电路数据锁存驱动电路
    • US6111446A
    • 2000-08-29
    • US45609
    • 1998-03-20
    • Brent Keeth
    • Brent Keeth
    • G11C7/10H03K5/15H03K5/151H03K5/13
    • G11C7/106G11C7/1051G11C7/1069G11C7/1078H03K5/15066H03K5/1515
    • A synchronous memory device and system are described which communicates bi-directional data via a bus and data clock. To capture data from the bus, a memory device latch circuit is described which operates in response to internally generated clock signals. A pulse generator circuit is described which produces these internal clock signals, and insures accurate latching of data by minimizing signal skew between the internal clock signals to avoid wasting valuable timing. The pulse generator circuit has at least two propagation paths that are symmetrical and operate in response to clock signals which are 90 degrees out-of-phase. A second pulse generator circuit is described minimizes skew by having symmetrical clock paths and also corrects duty cycle error present on the data clock. This second circuit uses three clock signals which have relative phases of 0, 90 and 180 degrees.
    • 描述了经由总线和数据时钟传送双向数据的同步存储器件和系统。 为了从总线捕获数据,描述了响应于内部产生的时钟信号而工作的存储器件锁存电路。 描述了产生这些内部时钟信号的脉冲发生器电路,并且通过使内部时钟信号之间的信号偏移最小化来确保数据的精确锁存,以避免浪费有价值的定时。 脉冲发生器电路具有对称的至少两个传播路径,并响应于90度异相的时钟信号而工作。 描述了第二脉冲发生器电路通过具有对称时钟路径使偏移最小化,并且还校正存在于数据时钟上的占空比误差。 该第二电路使用三个时钟信号,其相位相位为0,90和180度。
    • 66. 发明授权
    • Low-skew differential signal converter
    • 低偏差差分信号转换器
    • US6069510A
    • 2000-05-30
    • US200250
    • 1998-11-25
    • Brent Keeth
    • Brent Keeth
    • H03K5/151H03K17/00
    • H03K5/151
    • A low-skew single-ended to differential signal converter includes a conventional single-ended to differential converter that drives a pair of output driver circuits. Each driver circuit is formed from a pair of transfer gates that receive a supply voltage or a reference voltage, respectively. The transfer gates transfer only a portion of the supply or reference voltage in response to the inverted signal from the conventional converter. The portion of the transferred voltage is insufficient to trigger output members in the output drivers and the output voltages from the drivers do not transition in response to the noninverted signal. The inverted signal causes the outputs of the transfer gates to transition fully, triggering the respective output inverters. Because the inverted signal causes transitions of both of the output signals, skew of the output signals is reduced relative to skew of the inverted and noninverted signals.
    • 低偏移单端到差分信号转换器包括驱动一对输出驱动器电路的常规单端到差分转换器。 每个驱动电路由分别接收电源电压或参考电压的一对传输门形成。 响应于来自常规转换器的反相信号,传输门仅传送电源或参考电压的一部分。 转移电压的部分不足以触发输出驱动器中的输出元件,并且来自驱动器的输出电压不响应于非反相信号而转变。 反相信号使传输门的输出完全转变,触发相应的输出反相器。 因为反相信号引起两个输出信号的转变,所以输出信号的偏斜相对于反相和非反相信号的偏斜减小。
    • 68. 发明授权
    • Low skew differential receiver with disable feature
    • 低偏差差分接收器具有禁用功能
    • US6026051A
    • 2000-02-15
    • US275690
    • 1999-03-24
    • Brent KeethRussel J. Baker
    • Brent KeethRussel J. Baker
    • G11C7/00G11C8/00H03K19/003H03K19/0185
    • H03K19/018528G11C7/1078G11C7/1084G11C7/1087G11C7/1093H03K19/00384
    • A differential clock receiver for a SynchLink-type Synchronous Dynamic Random Access Memory (SLDRAM) includes a differential amplifier with a novel method for biasing its NMOS and PMOS current sources. A differential clock received and amplified by the differential amplifier switches a set of multiplexers, which respond by outputting a differential output clock. The multiplexers can be "disabled" by an inactive enable signal so they output a constant "0" level for the differential output clock. This disabling feature of the differential clock recciver is particularly useful with the intermittent data clocks found in SLDRAMs. Also, the novel biasing method for the current sources of the differential amplifier gives the clock receiver very low skew.
    • 用于SynchLink型同步动态随机存取存储器(SLDRAM)的差分时钟接收器包括具有用于偏置其NMOS和PMOS电流源的新颖方法的差分放大器。 由差分放大器接收和放大的差分时钟切换一组多路复用器,其通过输出差分输出时钟来响应。 多路复用器可以通过无效使能信号“禁用”,因此它们为差分输出时钟输出一个恒定的“0”电平。 对于SLDRAM中发现的间歇性数据时钟,差分时钟接收器的禁用功能特别有用。 此外,差分放大器的电流源的新型偏置方法给时钟接收器非常低的偏移。
    • 69. 发明授权
    • Dynamic random-access memory having a hierarchical data path
    • 具有分层数据路径的动态随机存取存储器
    • US5999480A
    • 1999-12-07
    • US167259
    • 1998-10-06
    • Adrian OngPaul S. ZagarTroy ManningBrent KeethKen Waller
    • Adrian OngPaul S. ZagarTroy ManningBrent KeethKen Waller
    • G11C5/02G11C7/10G11C11/4096G11C29/00G11C29/36G11C8/00
    • G11C29/785G11C11/4096G11C29/80G11C29/88G11C5/025G11C7/10G11C29/36
    • A semiconductor dynamic random-access memory (DRAM) device embodying numerous features that collectively and/or individually prove beneficial and advantageous with regard to such considerations as density, power consumption, speed, and redundancyis disclosed. The device is a 64 Mbit DRAM comprising eight substantially identical 8 Mbit partial array blocks (PABs), each pair of PABs comprising a 16 Mbit quadrant of the device. Between the top two quadrants and between the bottom two quadrants are column blocks containing I/O read/write circuitry, column redundancy fuses, and column decode circuitry. Column select lines originate from the column blocks and extend right and left across the width of each quadrant. Each PAB comprises eight substantially identical 1Mbit sub-array blocks (SABs). Associated with each SAB are a plurality of local row decoder circuits functioning to receive partially decoded row addresses from a column predecoder circuit and generating local row addresses supplied to the SAB with which they are associated. A hierarchical data path is provided wherein a plurality of multiplexers are distributed throughout each SAB, these multiplexers functioning to selectively couple sense amplifier output signals to local data I/O lines associated with each SAB. In one embodiment, the data path multiplexers are physically disposed within gaps defined by adjacent ones of the local row address decoders distributed throughout each SAB.
    • 一种体现许多特征的半导体动态随机存取存储器(DRAM)装置,其集合和/或单独证明在所公开的诸如密度,功耗,速度和冗余度之类的考虑方面是有益和有利的。 该器件是包括八个基本上相同的8兆位部分阵列块(PAB)的64Mbit DRAM,每对PAB包括该器件的16Mb象限。 顶部两个象限之间和底部两个象限之间是包含I / O读/写电路,列冗余保险丝和列解码电路的列块。 列选择线来自列块,并在每个象限的宽度上左右延伸。 每个PAB包括八个基本相同的1M位子阵列块(SAB)。 与每个SAB相关联的是多个本地行解码器电路,用于从列预解码器电路接收部分解码的行地址,并产生提供给与它们相关联的SAB的本地行地址。 提供了分层数据路径,其中多个复用器分布在每个SAB中,这些多路复用器用于选择性地将感测放大器输出信号耦合到与每个SAB相关联的本地数据I / O线。 在一个实施例中,数据路径多路复用器物理地布置在分布在每个SAB中的相邻的本地行地址解码器限定的间隙内。