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    • 7. 发明授权
    • Semiconductor device downsizing its built-in driver
    • 半导体器件缩小其内置驱动器
    • US06756803B2
    • 2004-06-29
    • US10330072
    • 2002-12-30
    • Manabu MiuraMakoto HatakenakaTakekazu Yamashita
    • Manabu MiuraMakoto HatakenakaTakekazu Yamashita
    • G01R3102
    • G01R31/2884H01L2224/05554H01L2224/48091H01L2224/48137H01L2224/49175H01L2924/3011H01L2924/00014H01L2924/00
    • A semiconductor device includes a first pad, a second pad, a first buffer and a second buffer. The first pad is connected to another semiconductor device in a multi-chip package, and the second pad makes a probing connection in a wafer test. The first buffer drives the another semiconductor device connected to the first pad. The second buffer, being driven by the first buffer, drives a load capacitance of a tester connected to the second pad with the driving power greater than the driving power of the first buffer, and has its active/inactive state controlled by a control signal. The semiconductor device can provide the driving power necessary for the wafer test, and drive the another semiconductor device with preventing generation of drive noise and suppressing current consumption in the normal operation of the multi-chip package.
    • 半导体器件包括第一焊盘,第二焊盘,第一缓冲器和第二缓冲器。 第一焊盘以多芯片封装连接到另一半导体器件,并且第二焊盘在晶片测试中进行探测连接。 第一缓冲器驱动连接到第一焊盘的另一个半导体器件。 由第一缓冲器驱动的第二缓冲器以大于第一缓冲器的驱动功率的驱动功率驱动连接到第二焊盘的测试仪的负载电容,并且由控制信号控制其主动/不活动状态。 半导体器件可以提供晶片测试所需的驱动功率,并驱动另一半导体器件,防止产生驱动噪声并抑制多芯片封装的正常工作中的电流消耗。
    • 9. 发明授权
    • Synchronized clock generating apparatus
    • 同步时钟发生装置
    • US5491438A
    • 1996-02-13
    • US289837
    • 1994-08-12
    • Yukio MiyazakiTakenori OkitakaMakoto HatakenakaJunji Mano
    • Yukio MiyazakiTakenori OkitakaMakoto HatakenakaJunji Mano
    • G06F1/10H03K5/00H03K5/13H04L7/033H03L7/00
    • H04L7/0338G06F1/10H03K5/133H03K2005/00234
    • A synchronized clock generating apparatus includes a delayed clock generating circuit including a plurality of serially connected delaying elements for generating delayed clock signals delayed successively relative to an incoming basic clock signal. Storage means includes a plurality of storage elements storing therein a predetermined level in response to transitions occurring in associated ones of said basic and delayed clock signals after a trigger signal which is asynchronous with the basic clock signal is applied thereto. A clock selection logic circuit is controlled by the output signal of the storage means for detecting the clock signal transition occurring closest in time to the application of the asynchronous trigger signal, and for selecting a desired one of said clock signals, based on the result of the detection, as a synchronized clock signal output.
    • 同步时钟发生装置包括延迟时钟产生电路,其包括多个串行连接的延迟元件,用于产生相对于输入的基本时钟信号连续延迟的延迟时钟信号。 存储装置包括多个存储元件,其中,在施加与基本时钟信号异步的触发信号之后,响应于在相关联的所述基本和延迟的时钟信号中发生的转换,存储其中的预定电平。 时钟选择逻辑电路由存储装置的输出信号控制,用于检测在施加异步触发信号时在时间上最近发生的时钟信号转换,并且基于所述时钟信号的结果来选择期望的一个时钟信号 检测,作为同步时钟信号输出。