Integrated circuit structure including three-dimensional memory array
    10.
    发明授权
    Integrated circuit structure including three-dimensional memory array 有权
    集成电路结构包括三维存储阵列

    公开(公告)号:US06385074B1

    公开(公告)日:2002-05-07

    申请号:US09748816

    申请日:2000-12-22

    IPC分类号: G11C1700

    摘要: An integrated circuit device includes a three-dimensional memory array and array terminal circuitry for providing to selected memory cells of the array a write voltage different from a read voltage. Neither voltage is necessarily equal to a VDD power supply voltage supplied to the integrated circuit. The write voltage, particularly if greater than VDD, may be generated by an on-chip voltage generator, such as a charge pump, which may require an undesirably large amount of die area, particularly relative to a higher bit density three-dimensional memory array formed entirely in layers above a semiconductor substrate. In several preferred embodiments, the area directly beneath a memory array is advantageously utilized to layout at least some of the write voltage generator, thus locating the generator near the selected memory cells during a write operation.

    摘要翻译: 集成电路器件包括三维存储器阵列和阵列端子电路,用于向阵列的选定存储单元提供不同于读取电压的写入电压。 两个电压都不一定等于提供给集成电路的VDD电源电压。 特别是如果大于VDD的写入电压可以由片上电压发生器(例如电荷泵)产生,其可能需要不期望的大量管芯面积,特别是相对于较高位密度的三维存储器阵列 完全以半导体衬底上的层形成。 在几个优选实施例中,存储器阵列正下方的区域有利地用于布置写入电压发生器中的至少一些,从而在写入操作期间将发生器定位在选定的存储器单元附近。