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    • 2. 发明公开
    • 반도체 기억 장치 및 워드 디코더 제어 방법
    • 半导体存储器件和控制字解码器的方法
    • KR1020090016381A
    • 2009-02-13
    • KR1020080063482
    • 2008-07-01
    • 후지쯔 세미컨덕터 가부시키가이샤
    • 하라고타
    • G11C11/4063G11C11/4074
    • G11C8/10G11C8/12G11C11/406G11C11/4085G11C11/4087G11C2211/4067G11C2211/4068G11C11/4076
    • A semiconductor memory device and a method for controlling a word decoder are provided to reduce power consumption and to maintain sufficiently a leakage current reduction effect in a memory block of an inactive state by removing an unnecessary operation for raising electric potential of a main word line in an accessing period of a memory block. A plurality of memory blocks(BLK0-BLK3) include main word lines and sub word lines. A plurality of main word decoders(10-0~10-3) set a non-selective main word line as one of a second electric potential or a third electric potential. A period signal generation circuit generates a period signal for indicating timing in a predetermined period. A block selection circuit selects a memory block as an access target. A plurality of sequential selection circuits(51-0~51-3) selects the memory blocks step by step. A plurality of word decoder control circuits(50-0~50-3) control the main word decoders.
    • 提供一种用于控制字解码器的半导体存储器件和方法,以通过去除用于提高主字线的电位的不必要的操作来降低功耗并充分保持在不活动状态的存储器块中的泄漏电流降低效果 内存块的访问周期。 多个存储块(BLK0-BLK3)包括主字线和子字线。 多个主字解码器(10-0〜10-3)将非选择性主字线设置为第二电位或第三电位之一。 周期信号发生电路产生用于指示预定时间段中的定时的周期信号。 块选择电路选择存储块作为存取目标。 多个顺序选择电路(51-0〜51-3)逐步选择存储器块。 多个字解码器控制电路(50-0〜50-3)控制主字解码器。
    • 5. 发明公开
    • 패리티 셀 어레이를 구비한 메모리 회로
    • 具有极性单元阵列的存储器电路
    • KR1020080077948A
    • 2008-08-26
    • KR1020080075614
    • 2008-08-01
    • 후지쯔 세미컨덕터 가부시키가이샤
    • 후지오카신야후지에다와이치로하라고타고가도루모리가츠히로
    • G11C11/406
    • G11C29/42G06F11/106G11C11/401G11C11/406G11C11/40603G11C11/40615G11C2211/4062
    • A memory circuit having a parity cell array is provided to reduce a semiconductor testing time by comparing real read data and parity read data with respective expectations at the same time. A memory circuit includes an address input buffer(10), a data input buffer(12), a command input buffer(14), and a timing generating circuit(16). The address input buffer inputs an address signal to plural address terminals. The data input buffer receives input data from plural I/O terminals. The command input buffer receives commands for plural command terminals. The timing generating circuit decodes an input command and generates a timing signal for controlling an inner circuit portion. A latch circuit(18) latches the address and data, which are inputted to the address input buffer and the data input buffer, respectively, in response to a latch control signal, which is generated in the timing generating circuit.
    • 提供具有奇偶校验单元阵列的存储器电路,以通过将实际读取数据和奇偶校验读取数据与相应期望同时进行比较来减少半导体测试时间。 存储电路包括地址输入缓冲器(10),数据输入缓冲器(12),命令输入缓冲器(14)和定时发生电路(16)。 地址输入缓冲器将地址信号输入到多个地址终端。 数据输入缓冲器从多个I / O端子接收输入数据。 命令输入缓冲器接收多个命令终端的命令。 定时发生电路解码输入命令并产生用于控制内部电路部分的定时信号。 锁存电路(18)响应于在定时发生电路中产生的锁存控制信号,分别将地址和数据锁存到地址输入缓冲器和数据输入缓冲器。
    • 6. 发明公开
    • 패리티 셀 어레이를 구비한 메모리 회로
    • 具有极性单元阵列的存储器电路
    • KR1020030043658A
    • 2003-06-02
    • KR1020020070670
    • 2002-11-14
    • 후지쯔 세미컨덕터 가부시키가이샤
    • 후지오카신야후지에다와이치로하라고타고가도루모리가츠히로
    • G11C11/406
    • G11C29/42G06F11/106G11C11/401G11C11/406G11C11/40603G11C11/40615G11C2211/4062
    • PURPOSE: A storage circuit with an odd-even check unit array is provided to test a real cell array and a parity cell array properly. CONSTITUTION: According to a memory circuit, a real cell array(RCA) stores data, and a parity or ECC generating circuit generates a parity bit or an ECC from data of the real cell array. A parity or ECC cell array stores the parity bit or ECC. A refresh control circuit generates an internal refresh request signal at a predetermined cycle and sequentially refreshes the real cell array in accordance with a refresh address, and, when an internal refresh request and a read request coincide, prioritizes a refresh operation for the real cell array(RCA). A data recovery section, in accordance with the parity bit or ECC read out from the parity or ECC cell array, recovers data read out from the real cell array(RCA) for which the refresh operation has been prioritized. An output circuit outputs data from the real cell array(RCA) via the data recovery section. And a test control circuit(38), in the first test mode, prohibits a refresh operation for the real cell array(RCA) to thereby output data read out from the real cell array(RCA), and, in the second test mode, controls the output circuit so as to output data read out from the parity or ECC cell array.
    • 目的:提供具有奇偶校验单元阵列的存储电路,以正确测试真实单元阵列和奇偶校验单元阵列。 构成:根据存储器电路,真实单元阵列(RCA)存储数据,并且奇偶校验或ECC生成电路从真实单元阵列的数据生成奇偶校验位或ECC。 奇偶校验位或ECC单元阵列存储奇偶校验位或ECC。 刷新控制电路以预定的周期生成内部刷新请求信号,并根据刷新地址顺序地刷新真实单元阵列,并且当内部刷新请求和读取请求一致时,优先考虑真实单元阵列的刷新操作 (RCA)。 根据从奇偶校验或ECC单元阵列读出的奇偶校验位或ECC的数据恢复部分恢复从刷新操作已被优先化的真实单元阵列(RCA)读出的数据。 输出电路通过数据恢复部分从真实单元阵列(RCA)输出数据。 而在第一测试模式下,测试控制电路(38)禁止对真实单元阵列(RCA)的刷新操作,从而输出从真实单元阵列(RCA)读出的数据,并且在第二测试模式中, 控制输出电路,以输出从奇偶校验或ECC单元阵列读出的数据。