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    • 1. 发明申请
    • Method and System for Testing an Integrated Circuit
    • 集成电路测试方法和系统
    • US20080205173A1
    • 2008-08-28
    • US12022422
    • 2008-01-30
    • Joerg KliewerKlaus NierleMartin Versen
    • Joerg KliewerKlaus NierleMartin Versen
    • G01R31/02G01R31/3187G11C29/00
    • G01R31/3004
    • An integrated circuit comprising: a) at least one integrated voltage generator for generating a low voltage for an associated integrated load; b) an integrated voltage generator test logic connected to the voltage generator which in a test operating mode which is the operating state of that integrated voltage generator between an active operating state and a standby operating state depending on an external control signal; c) an internal load switch for switching said generated load voltage to that integrated load said internal load switch being controllable by means of an internal control signal; d) wherein said voltage generator test logic in said test operating mode switches the operating state of said integrated voltage generator independently of the associated internal control switching signal for setting a temporal voltage profile of said load voltage applied to that load.
    • 一种集成电路,包括:a)至少一个集成电压发生器,用于为相关联的集成负载产生低电压; b)连接到所述电压发生器的集成电压发生器测试逻辑,所述电压发生器在作为所述集成电压发生器的操作状态的测试操作模式中,所述电压发生器测试逻辑根据外部控制信号而在有效工作状态和待机操作状态 c)用于将所述产生的负载电压切换到所述集成负载的内部负载开关,所述内部负载开关可通过内部控制信号来控制; d)其中所述测试操作模式中的所述电压发生器测试逻辑独立于相关联的内部控制切换信号切换所述集成电压发生器的操作状态,以设置施加到该负载的所述负载电压的时间电压分布。
    • 2. 发明授权
    • Method and system for testing an integrated circuit
    • 用于测试集成电路的方法和系统
    • US07729186B2
    • 2010-06-01
    • US12022422
    • 2008-01-30
    • Joerg KliewerKlaus NierleMartin Versen
    • Joerg KliewerKlaus NierleMartin Versen
    • G11C7/00
    • G01R31/3004
    • An integrated circuit comprising: a) at least one integrated voltage generator for generating a low voltage for an associated integrated load; b) an integrated voltage generator test logic connected to the voltage generator which in a test operating mode which is the operating state of that integrated voltage generator between an active operating state and a standby operating state depending on an external control signal; c) an internal load switch for switching said generated load voltage to that integrated load said internal load switch being controllable by means of an internal control signal; d) wherein said voltage generator test logic in said test operating mode switches the operating state of said integrated voltage generator independently of the associated internal control switching signal for setting a temporal voltage profile of said load voltage applied to that load.
    • 一种集成电路,包括:a)至少一个集成电压发生器,用于为相关联的集成负载产生低电压; b)连接到所述电压发生器的集成电压发生器测试逻辑,所述电压发生器在作为所述集成电压发生器的操作状态的测试操作模式中,所述电压发生器测试逻辑根据外部控制信号而在有效工作状态和待机操作状态 c)用于将所述产生的负载电压切换到所述集成负载的内部负载开关,所述内部负载开关可通过内部控制信号来控制; d)其中所述测试操作模式中的所述电压发生器测试逻辑独立于相关联的内部控制切换信号切换所述集成电压发生器的操作状态,以设置施加到该负载的所述负载电压的时间电压分布。
    • 3. 发明授权
    • Test mode method and apparatus for internal memory timing signals
    • 用于内部存储器定时信号的测试模式方法和装置
    • US07339841B2
    • 2008-03-04
    • US11227099
    • 2005-09-16
    • Martin VersenKlaus NierleOliver KiehlErnst Stahl
    • Martin VersenKlaus NierleOliver KiehlErnst Stahl
    • G11C7/00
    • G11C29/50G11C29/12015G11C29/14G11C29/50012
    • A method of testing internal signals of a memory for timing marginalities which may result in unstable operation includes: delaying internal address signals of the memory by an amount great enough so that data cannot be validly written to and read from memory locations which are accessed by address signals having timing marginalities which are delayed but small enough so that data can be validly written to and read from memory locations which are accessed by address signals not having such timing marginalities which are delayed. Data is then written to and read from memory locations which are accessed by delayed address signals, and a determination is made as to whether the data read from any memory location does not correspond with the data written to such memory location.
    • 测试存储器的内部信号的方法,其可能导致不稳定的操作的定时边界,包括:将存储器的内部地址信号延迟足够大的量,使得数据不能被有效地写入到存储器位置并从其被地址访问的存储器位置读取 具有延迟但足够小的定时边缘的信号,使得数据可以被有效地写入到存储单元中并从存储位置读取,地址信号不具有被延迟的这种定时边缘。 然后将数据写入到由延迟的地址信号访问的存储器位置并从其读取,并且确定从任何存储器位置读取的数据是否与写入该存储器位置的数据不对应。
    • 4. 发明申请
    • Test mode method and apparatus for internal memory timing signals
    • 用于内部存储器定时信号的测试模式方法和装置
    • US20070064505A1
    • 2007-03-22
    • US11227099
    • 2005-09-16
    • Martin VersenKlaus NierleOliver KiehlErnst Stahl
    • Martin VersenKlaus NierleOliver KiehlErnst Stahl
    • G11C7/00
    • G11C29/50G11C29/12015G11C29/14G11C29/50012
    • A method of testing internal signals of a memory for timing marginalities which may result in unstable operation includes: delaying internal address signals of the memory by an amount great enough so that data cannot be validly written to and read from memory locations which are accessed by address signals having timing marginalities which are delayed but small enough so that data can be validly written to and read from memory locations which are accessed by address signals not having such timing marginalities which are delayed. Data is then written to and read from memory locations which are accessed by delayed address signals, and a determination is made as to whether the data read from any memory location does not correspond with the data written to such memory location.
    • 测试存储器的内部信号的方法,其可能导致不稳定的操作的定时边界,包括:将存储器的内部地址信号延迟足够大的量,使得数据不能被有效地写入到存储器位置并从其被地址访问的存储器位置读取 具有延迟但足够小的定时边缘的信号,使得数据可以被有效地写入到存储单元中并从存储位置读取,地址信号不具有被延迟的这种定时边缘。 然后将数据写入到由延迟的地址信号访问的存储器位置并从其读取,并且确定从任何存储器位置读取的数据是否与写入该存储器位置的数据不对应。
    • 9. 发明授权
    • Method for testing the serviceability of bit lines in a DRAM memory device
    • 用于测试DRAM存储器件中位线的可用性的方法
    • US07120070B2
    • 2006-10-10
    • US10930132
    • 2004-08-31
    • Martin VersenKlaus Nierle
    • Martin VersenKlaus Nierle
    • G11C7/00
    • G11C29/026G11C11/401G11C29/02G11C29/025
    • DRAM memory device (1) comprising at least one array of memory cells (2, 3, 4, 5), each memory cell (12) being connected to a bit line (BL) and a word line (WL), each of said bit lines (BL) being connected to a sense amplifier and a pre-charge circuit (15); a controllable active-current generator (7, 8, 9, 10) for providing power to the sense amplifiers and pre-charge circuits (15) for a time interval that is limited by a time at which a command for a read or write access is applied to the DRAM memory device (1) and an assigned switching time; a controllable standby-current generator (6) for providing power to the sense amplifiers and pre-charge circuits (15) after the switching time; a control circuit (11) for receiving external data, address and control signals (C, A, D) and for controlling the active-current generator (7, 8, 9, 10) and the standby-current generator (6); wherein the control circuit (11) is adapted to control the time for switching the respective power generator (6, 7, 8, 9, 10) to the sense amplifiers and to the pre-charge circuits (15) subject to an external test mode signal for reducing the overall testing time in a test of the serviceability of the bit lines (BL), sense amplifiers and pre-charge circuits (15).
    • DRAM存储器件(1)包括至少一个存储器单元阵列(2,3,4,5),每个存储器单元(12)连接到位线(BL)和字线(WL),每个所述存储器单元 位线(BL)连接到读出放大器和预充电电路(15); 一个可控有功电流发生器(7,8,9,10),用于在读或写访问命令的时间限制的时间间隔内向读出放大器和预充电电路(15)提供功率 被施加到DRAM存储器件(1)和分配的切换时间; 用于在切换时间之后向读出放大器和预充电电路(15)提供电力的可控待机电流发生器(6); 用于接收外部数据,地址和控制信号(C,A,D)并用于控制有功电流发生器(7,8,9,10)和待机电流发生器(6)的控制电路(11)。 其中所述控制电路(11)适于控制用于将各个发电机(6,7,8,9,10)切换到所述读出放大器和经受外部测试模式的所述预充电电路(15)的时间 用于在测试位线(BL),读出放大器和预充电电路(15)的可用性的测试中减少总体测试时间的信号。