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    • 115. 发明授权
    • Semiconductor device
    • 半导体器件
    • US06424590B1
    • 2002-07-23
    • US10023891
    • 2001-12-21
    • Binhaku TaruishiHiroki MiyashitaKen ShibataMasashi Horiguchi
    • Binhaku TaruishiHiroki MiyashitaKen ShibataMasashi Horiguchi
    • G11C800
    • G11C7/1084G11C7/1066G11C7/1078G11C7/1093G11C7/1096
    • In a semiconductor device having a data input buffer capable of inputting write data to each of memory units, the data input buffer is changed from an inactive state to an active state after the reception of instruction for a write operation effected on the memory unit. The data input buffer is a differential input buffer having interface specs based on SSTL, for example, which is brought to an active state by the turning on of a power switch to thereby cause a through current to flow and receives a signal therein while immediately following a small change in small-amplitude signal. Since the input buffer is brought to the active state only when the write operation's instructions for the memory unit is provided, the data input buffer is rendered active in advance before the instructions for the write operation is provided, whereby wastefully consumed power is reduced.
    • 在具有能够向每个存储单元输入写入数据的数据输入缓冲器的半导体器件中,在接收到对存储器单元进行的写入操作的指​​令之后,数据输入缓冲器从非活动状态改变为有效状态。 数据输入缓冲器是具有例如基于SSTL的接口规格的差分输入缓冲器,其通过接通电源开关而进入活动状态,从而使通过电流流过并在其中立即接收信号 小振幅信号的小变化。 由于输入缓冲器仅在提供存储单元的写入操作指令时才进入活动状态,所以在提供用于写入操作的指​​令之前,数据输入缓冲器被预先激活,从而减少浪费的功率。
    • 117. 发明授权
    • Semiconductor device
    • 半导体器件
    • US06339552B1
    • 2002-01-15
    • US09640762
    • 2000-08-18
    • Binhaku TaruishiHiroki MiyashitaKen ShibataMasashi Horiguchi
    • Binhaku TaruishiHiroki MiyashitaKen ShibataMasashi Horiguchi
    • G11C700
    • G11C7/1084G11C7/1066G11C7/1078G11C7/1093G11C7/1096
    • In a semiconductor device having a data input buffer capable of inputting write data to each of memory units, the data input buffer is changed from an inactive state to an active state after the reception of instruction for a write operation effected on the memory unit. The data input buffer is a differential input buffer having interface specs based on SSTL, for example, which is brought to an active state by the turning on of a power switch to thereby cause a through current to flow and receives a signal therein while immediately following a small change in small-amplitude signal. Since the input buffer is brought to the active state only when the write operation's instruction for the memory unit is provided, the data input buffer is rendered inactive in advance, before the instruction for the write operation is provided, whereby wasteful power consumption is reduced.
    • 在具有能够向每个存储单元输入写入数据的数据输入缓冲器的半导体器件中,在接收到对存储器单元进行的写入操作的指​​令之后,数据输入缓冲器从非活动状态改变为有效状态。 数据输入缓冲器是具有例如基于SSTL的接口规格的差分输入缓冲器,其通过接通电源开关而进入活动状态,从而使通过电流流过并在其中立即接收信号 小振幅信号的小变化。 由于只有在提供了写入操作对存储器单元的指令的情况下,输入缓冲器才进入活动状态,所以在提供写入操作的指​​令之前,预先使数据输入缓冲器无效,从而减少浪费的功耗。
    • 120. 发明授权
    • Semiconductor device having redundancy circuit
    • 具有冗余电路的半导体器件
    • US5966336A
    • 1999-10-12
    • US144258
    • 1998-08-31
    • Masashi HoriguchiJun EtohMasakazu AokiKiyoo Itoh
    • Masashi HoriguchiJun EtohMasakazu AokiKiyoo Itoh
    • G11C5/00G11C7/00G11C8/00G11C29/00
    • G11C29/80G11C29/785G11C29/808
    • A redundancy technique is introduced for a semiconductor memory and, more particularly, a redundancy technique for a memory, for example, a dynamic random access memory (DRAM) having a memory array which is divided into memory mats and a storage capacity of 16 mega bits or more. According to the present redundancy technique, for a semiconductor memory including a memory array which has a plurality of word lines, a plurality of bit lines arranged so that two-level crossings are formed between the word lines and the bit lines, memory cells disposed at desired ones of the two-level crossings, and spare bit lines, there is provided a redundancy circuit having a memory for storing therein a defective address existing in the memory array and comparing an address to be accessed with the stored defective address. Each of the address comparing circuits has stored therein the column address of a defective bit line and a part of the row address indicating the memory mat corresponding to the defective bit line.
    • 为半导体存储器引入冗余技术,更具体地说,涉及一种用于存储器的冗余技术,例如具有存储器阵列的动态随机存取存储器(DRAM),该存储器阵列被分成存储器阵列,存储容量为16兆比特 或者更多。 根据本技术的冗余技术,对于包含具有多个字线的存储器阵列的半导体存储器,配置成在字线和位线之间形成2级交叉的多位位线,位于 提供了两级交叉中的期望的和备用位线,提供了一种冗余电路,其具有用于在其中存储存在于存储器阵列中的缺陷地址并将要访问的地址与存储的缺陷地址进行比较的存储器。 每个地址比较电路在其中存储有缺陷位线的列地址和指示与有缺陷位线对应的存储器堆的行地址的一部分。