Method of manufacturing a nonvolatile memory including a memory cell
having a MISFET
    88.
    发明授权
    Method of manufacturing a nonvolatile memory including a memory cell having a MISFET 失效
    包括具有MISFET的存储单元的非易失性存储器的制造方法

    公开(公告)号:US5445987A

    公开(公告)日:1995-08-29

    申请号:US98779

    申请日:1993-07-29

    摘要: A plurality of memory cells have their sources and drains formed integrally with n.sup.+ -buried layers acting as first data lines in a semiconductor substrate. The n.sup.+ -buried layers are connected with second data lines through transfer MISFETs. These transfer MISFETs have their gates made of the same layer of polycrystalline silicon as that of the floating gates of memory cells and are shunted at each predetermined number of bits by Al lines having a lower resistance than that of the polycrystalline silicon. The aforementioned memory cells are made by a method comprising the steps of: forming over a semiconductor substrate sequentially the first gate insulating film, a first conductor layer for the floating gate electrode, an insulating film having at least its uppermost layer of a silicon nitride film for the second gate insulating film, and a damage preventing film of a silicon oxide film; patterning the silicon oxide film, the insulating film and the first conductor layer in a stripe shape; and forming, by ion implantation, an n.sup.+ -buried layer extending in a first direction by using the stripe-patterned silicon oxide film as a mask. As a result, the second gate insulating film can be prevented from having its quality degraded by the damage of the ion implantation.

    摘要翻译: 多个存储单元的源极和漏极与在半导体衬底中用作第一数据线的n +层作为一体形成。 n +掩埋层通过传输MISFET与第二数据线连接。 这些转移MISFET具有与存储单元的浮动栅极相同的多晶硅层制成的栅极,并且通过具有比多晶硅的电阻低的Al线以每个预定数量的位分流。 上述存储单元通过以下方法制造:包括以下步骤:依次形成半导体衬底上的第一栅绝缘膜,用于浮置栅电极的第一导体层,至少具有氮化硅膜的最上层的绝缘膜 用于第二栅极绝缘膜,以及氧化硅膜的防损伤膜; 将氧化硅膜,绝缘膜和第一导体层图案化为条状; 以及通过使用条状图案化的氧化硅膜作为掩模,通过离子注入形成沿第一方向延伸的n +掩埋层。 结果,可以防止第二栅极绝缘膜由于离子注入的损坏而劣化其质量。

    Semiconductor integrated circuit device and process for manufacturing
the same
    89.
    发明授权
    Semiconductor integrated circuit device and process for manufacturing the same 失效
    半导体集成电路器件及其制造方法

    公开(公告)号:US5270944A

    公开(公告)日:1993-12-14

    申请号:US929511

    申请日:1992-08-14

    摘要: A method of fabrication comprising forming a semiconductor integrated circuit device LSI which has a microcomputer CPU furnished with an EPROM, determining a program for controlling the microcomputer CPU and to be set in the EPROM (performing an initial evaluation) while information is being written into and erased from the EPROM built in the semiconductor integrated circuit device LSI, and thereafter forming a semiconductor integrated circuit device LSI in which the EPROM of the first-mentioned semiconductor integrated circuit device LSI is replaced with a mask ROM. In replacing the EPROM with the mask ROM, peripheral circuits required for both the EPROM and the mask ROM have their circuit arrangements held basically the same, and specific peripheral circuits for use in only the EPROM have their circuit regions left as they are as logically inactive regions.

    摘要翻译: 一种制造方法,包括形成半导体集成电路器件LSI,其具有配备有EPROM的微型计算机CPU,确定用于控制微机CPU的程序并将其设置在EPROM中(执行初始评估),同时正在写入信息;以及 从内置于半导体集成电路器件LSI中的EPROM擦除,然后形成半导体集成电路器件LSI,其中首先提到的半导体集成电路器件LSI的EPROM被掩模ROM替代。 在使用掩模ROM替换EPROM时,EPROM和掩模ROM所需的外围电路的电路布置基本相同,仅在EPROM中使用的特定外围电路的电路区域保持不变,因为它们在逻辑上不起作用 地区。

    Automatic document feeder and image forming apparatus
    90.
    发明授权
    Automatic document feeder and image forming apparatus 有权
    自动进纸器和成像设备

    公开(公告)号:US09493319B2

    公开(公告)日:2016-11-15

    申请号:US14255015

    申请日:2014-04-17

    IPC分类号: G03G15/00 B65H5/26 B65H7/20

    摘要: An automatic document feeder includes a sheet feeding tray on which a document is stacked; a slit glass on which the document is scanned while moving; a discharge path in which the document is conveyed after the document is scanned; a document discharge unit to which the document is discharged through the discharge path; and a stamp device that makes a mark on a scanned surface of the document being in the discharge path. The stamp device includes a printing unit that faces the scanned surface of the document. The printing unit is movable between a first position at which the printing unit faces the document being in the discharge path and a second position at which the printing unit is retracted from the discharge path.

    摘要翻译: 自动送纸器包括一个纸张馈送托盘,文档被堆叠在其上; 移动时扫描文件的狭缝玻璃; 在文件被扫描之后文档被传送的排放路径; 原稿排出单元,通过排出路径将文件排出到该文件排出单元; 以及在文档的扫描表面上形成标记的印模装置处于排出路径。 邮票装置包括面向文件扫描表面的打印单元。 打印单元可以在打印单元面对在排出路径中的文档的第一位置和打印单元从排出路径缩回的第二位置之间移动。