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    • 2. 发明授权
    • Semiconductor device having an internal voltage generating circuit
    • 具有内部电压产生电路的半导体器件
    • US06297624B1
    • 2001-10-02
    • US09258159
    • 1999-02-26
    • Katsuyoshi MitsuiKiyohiro FurutaniTakashi Kono
    • Katsuyoshi MitsuiKiyohiro FurutaniTakashi Kono
    • G05F316
    • G05F1/465
    • An internal power supply circuit produces an internal power supply voltage from an external power supply voltage. A voltage level control circuit controls a voltage level and a temperature characteristic of the internal power supply voltage generated by the internal power supply circuit. The internal power supply circuit produces the internal power supply voltage having a negative or zero temperature characteristic in a low temperature region and a positive temperature characteristic in a high temperature region. The voltage level control circuit includes a structure optimizing a capacitance value of a sense power supply line stabilizing capacitance for driving a sense amplifier circuit, a level converting circuit determining the lowest operable region of the external power supply voltage of the internal power supply circuit, or a structure forcedly operating the internal voltage down converter upon power-on. The internal power supply voltage at a desired level is stably produced with a small occupied area and a low current consumption.
    • 内部电源电路从外部电源电压产生内部电源电压。 电压电平控制电路控制由内部电源电路产生的内部电源电压的电压电平和温度特性。 内部电源电路在低温区域产生具有负温度或零温度特性的内部电源电压,在高温区域产生正温度特性。 电压电平控制电路包括优化用于驱动读出放大器电路的感测电源线稳定电容的电容值的结构,确定内部电源电路的外部电源电压的最低可操作区域的电平转换电路,或 一个在上电时强制运行内部降压转换器的结构。 以小的占用面积和低的电流消耗稳定地产生期望的内部电源电压。
    • 5. 发明授权
    • Test circuit for a semiconductor memory device and method for burn-in
test
    • 一种用于半导体存储器件的测试电路和用于老化测试的方法
    • US6055199A
    • 2000-04-25
    • US176880
    • 1998-10-21
    • Kei HamadeKiyohiro FurutaniTakashi KonoMikio Asakura
    • Kei HamadeKiyohiro FurutaniTakashi KonoMikio Asakura
    • G11C29/50G11C7/00
    • G11C29/50G11C11/401
    • A circuit for supplying a stress to memory cells of a semiconductor memory device having the plurality of the memory cells respectively connected to a word line and a bit line comprises a circuit for generating precharge voltage for bit line, a bit line precharging and equalizing circuit which is connected between said circuit for generating precharge voltage for bit line and said memory cells, a pad connected to the bit line precharging and equalizing circuit for applying a desirable voltage to said memory cells through the corresponding bit lines, and a circuit connected to the circuit for generating precharge voltage for bit line for generating a signal for stopping the operation of said circuit for generating precharge voltage for bit line, whereby cell checker patterns can easily be realized in order to screen out possible failures not only in gate oxide films but also in capacitor dielectrics, storage node junctions or the like by applying an arbitrary stress voltage from the outside of the device.
    • 用于向具有分别连接到字线和位线的多个存储单元的半导体存储器件的存储单元提供应力的电路包括用于产生位线的预充电电压的电路,位线预充电和均衡电路, 连接在所述用于产生位线的预充电电压的电路和所述存储单元之间,连接到位线预充电和均衡电路的焊盘,用于通过相应的位线向所述存储器单元施加期望的电压,以及连接到电路的电路 用于产生用于产生用于产生用于产生用于产生位线的预充电电压的所述电路的操作的信号的位线的预充电电压,从而可以容易地实现电池检查器图案,以便不仅在栅极氧化膜中屏蔽可能的故障, 电容器电介质,存储节点结等,从外部施加任意的应力电压 设备侧。