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    • 1. 发明授权
    • Tester of semiconductor memory device and test method thereof
    • 半导体存储器件测试仪及其测试方法
    • US06625766B1
    • 2003-09-23
    • US09512158
    • 2000-02-24
    • Se-Jang OhKi-Sang Kang
    • Se-Jang OhKi-Sang Kang
    • G11C2900
    • G11C29/20G11C2029/0405
    • A test method of a tester of a semiconductor memory device which includes recording a test pattern into the semiconductor memory device, reading the recorded test pattern to compare with a expected pattern, detecting information on a defect of the semiconductor memory device with a result of the comparison and interpreting the information on the defect of the semiconductor memory device, the method comprising the steps of: setting up minimum and maximum values relevant to a desired capacity of the semiconductor memory device to be tested; counting up from the preset minimum to the preset maximum values; generating a carry signal by comparing the preset maximum value with the counted value when the counted value gets to the preset maximum value; and resetting a value to be counted if the carry signal is generated, to thereby generate addresses of the semiconductor memory device, and a tester of the semiconductor memory device comprising: minimum and maximum address registering means for saving minimum and maximum address values relevant to a desired capacity of the semiconductor memory device to be tested; address counting means for increasingly counting from the minimum value to generate addresses; and carry signal generating means for generating carry signals, if the addresses output from the address counting means and a signal output from the maximum address registering means are the same, to thereby reset the address counting means, so that a user of the tester does not have to make a new test program, providing convenience in performing a test and improving reliability in results of the test.
    • 一种半导体存储器件的测试器的测试方法,包括将测试图案记录到半导体存储器件中,读取记录的测试图案以与预期图案进行比较,检测关于半导体存储器件的缺陷的信息,结果是 比较和解释关于半导体存储器件的缺陷的信息,该方法包括以下步骤:设置与要测试的半导体存储器件的期望容量相关的最小值和最大值; 从预设最小值到预设最大值; 当计数值达到预设最大值时,通过将预设最大值与计数值进行比较来产生进位信号; 并且如果产生进位信号,则重置要计数的值,从而生成半导体存储器件的地址,以及半导体存储器件的测试器,包括:最小和最大地址寄存装置,用于保存与a相关的最小和最大地址值 要测试的半导体存储器件的期望容量; 地址计数装置,用于从最小值逐渐计数以产生地址; 以及用于产生进位信号的进位信号产生装置,如果从地址计数装置输出的地址和从最大地址登记装置输出的信号相同,从而复位地址计数装置,使得测试仪的用户不 必须制定一个新的测试程序,提供方便的测试和提高测试结果的可靠性。
    • 2. 发明授权
    • Semiconductor device testing system
    • 半导体器件测试系统
    • US06507801B1
    • 2003-01-14
    • US09697026
    • 2000-10-25
    • Se-Jang OhKi-Sang KangJeong-Ho Bang
    • Se-Jang OhKi-Sang KangJeong-Ho Bang
    • G06F300
    • G01R31/31707G01R31/3183G01R31/318371
    • The present invention relates to a semiconductor device testing system having an advanced testing capability for performing tests on a semiconductor device. A system frame includes both normal and high-speed testing formatters, and a test head is arranged in electrical communication with the system frame. Normal PIN drivers are included to operate the testing system at a first frequency to transmit the signals required to perform tests at a normal speed. High-speed PIN drivers are also included to operate the testing system at a second frequency, higher than the first frequency, to transmit the signals required to perform tests at a higher speed. In this manner, the testing system of this invention is able-to achieve superior testing performance while reducing the overall system production cost.
    • 本发明涉及具有用于对半导体器件进行测试的先进测试能力的半导体器件测试系统。 系统框架包括正常和高速测试格式化程序,测试头与系统框架电气通信。 包括正常PIN驱动程序,以第一频率操作测试系统,以正常速度传输执行测试所需的信号。 还包括高速PIN驱动程序,以高于第一个频率的第二个频率操作测试系统,以更高速度传输执行测试所需的信号。 以这种方式,本发明的测试系统能够在降低整个系统生产成本的同时实现优异的测试性能。
    • 7. 发明申请
    • Memory testing apparatus and method
    • 记忆体检测装置及方法
    • US20050043912A1
    • 2005-02-24
    • US10851151
    • 2004-05-24
    • Ki-Sang KangTsutomu AkiyamaJe-Young Park
    • Ki-Sang KangTsutomu AkiyamaJe-Young Park
    • G01R31/3183G01R31/28G11C29/00G11C29/56H01L21/66G06F19/00
    • G11C29/56004G11C29/56G11C2029/1208
    • Provided are a memory device testing apparatus and method of operating such an apparatus that can reduce the time required to test a memory device such as a DRAM. The memory testing apparatus includes a pattern generator, a test head, an address pointer, a selector, a failure memory, a failure bit counter and a controller for coordinating the operation of the various elements. Depending on the signals received from the controller, the pattern generator will generate background pattern(s) or test patterns and address information that are, in turn, output to the memory device under test and the selector. During funtional testing of the memory device, failure data is accumulated in a failure memory and subsequently output to a failure bit counter using address information from the address pointer while the background or test pattern is being written to the memory device.
    • 提供了一种操作这样的装置的存储器件测试装置和方法,其可以减少测试诸如DRAM的存储器件所需的时间。 存储器测试装置包括模式发生器,测试头,地址指针,选择器,故障存储器,故障位计数器和用于协调各种元件的操作的控制器。 根据从控制器接收到的信号,模式发生器将产生背景模式或测试模式和地址信息,这些模式和地址信息又被输出到被测存储器件和选择器。 在对存储器件进行功能测试期间,故障数据被累积在故障存储器中,并且随后当将背景或测试模式写入存储器件时,使用来自地址指针的地址信息将其输出到故障位计数器。
    • 8. 发明授权
    • Methods and systems for testing integrated circuit memory devices by overlappiing test result loading and test result analysis
    • 通过覆盖测试结果加载和测试结果分析来测试集成电路存储器件的方法和系统
    • US06288955B1
    • 2001-09-11
    • US09415523
    • 1999-10-08
    • Kazuhiro ShibanoKi-Sang Kang
    • Kazuhiro ShibanoKi-Sang Kang
    • G11C700
    • G01R31/31935G01R31/31908
    • Integrated circuit memory devices are tested by loading into a first defect interpretation memory, results of a preceding comparison test between test pattern data that is input into a memory device and resultant data that is output from the memory device. Automatic switching then takes place to a second defect interpretation memory. The results of a succeeding comparison test are loaded therein, while simultaneously analyzing results from the preceding comparison test in the first defect interpretation memory. Then, automatic switching back to the first defect interpretation memory takes place, and results of a next succeeding comparison test are loaded therein while simultaneously analyzing the results from the succeeding comparison test in the second defect interpretation memory. Automatic switching and automatic switching back are repeatedly performed, to thereby simultaneously test a memory device and analyze memory test results.
    • 集成电路存储器件通过加载到第一缺陷解释存储器中进行测试,其中输入到存储器件的测试图案数据与从存储器件输出的结果数据之间的先前的比较测试结果。 然后自动切换到第二个缺陷解释存储器。 在其中加载后续比较测试的结果,同时分析来自第一缺陷解释存储器中的先前比较测试的结果。 然后,自动切换回第一缺陷解释存储器,并且在其中加载下一个后续比较测试的结果,同时分析来自第二缺陷解释存储器中的后续比较测试的结果。 重复执行自动切换和自动切换,从而同时测试存储器件并分析存储器测试结果。
    • 10. 发明授权
    • Memory testing apparatus and method
    • 记忆体检测装置及方法
    • US07103493B2
    • 2006-09-05
    • US10851151
    • 2004-05-24
    • Ki-Sang KangTsutomu AkiyamaJe-Young Park
    • Ki-Sang KangTsutomu AkiyamaJe-Young Park
    • G01R31/00
    • G11C29/56004G11C29/56G11C2029/1208
    • Provided are a memory device testing apparatus and method of operating such an apparatus that can reduce the time required to test a memory device such as a DRAM. The memory testing apparatus includes a pattern generator, a test head, an address pointer, a selector, a failure memory, a failure bit counter and a controller for coordinating the operation of the various elements. Depending on the signals received from the controller, the pattern generator will generate background pattern(s) or test patterns and address information that are, in turn, output to the memory device under test and the selector. During functional testing of the memory device, failure data is accumulated in a failure memory and subsequently output to a failure bit counter using address information from the address pointer while the background or test pattern is being written to the memory device.
    • 提供了一种操作这样的装置的存储器件测试装置和方法,其可以减少测试诸如DRAM的存储器件所需的时间。 存储器测试装置包括模式发生器,测试头,地址指针,选择器,故障存储器,故障位计数器和用于协调各种元件的操作的控制器。 根据从控制器接收到的信号,模式发生器将产生背景模式或测试模式和地址信息,这些模式和地址信息又被输出到被测存储器件和选择器。 在存储器件的功能测试期间,故障数据被累积在故障存储器中,随后当将背景或测试模式写入存储器件时,使用来自地址指针的地址信息将其输出到故障位计数器。