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    • 1. 发明申请
    • METHOD OF MANUFACTURING NOR FLASH MEMORY
    • 制造或闪存存储器的方法
    • US20100227460A1
    • 2010-09-09
    • US12399377
    • 2009-03-06
    • Yider WuYung-Chung LeeYi-Hsiu Chen
    • Yider WuYung-Chung LeeYi-Hsiu Chen
    • H01L21/4763
    • H01L27/11521H01L21/76224
    • In a method of manufacturing a NOR flash memory, when the memory device dimensions are further reduced, the forming of spacers at two lateral sides of the gate structures is omitted, and a space between two gate structures can be directly filled up with a dielectric spacer or a shallow trench isolation (STI) layer. Therefore, it is possible to avoid the problem of increased difficulty in manufacturing memory device caused by forming spacers in an extremely small space between the gate structures. The method also enables omission of the self-alignment step needed to form the salicide layer. Therefore, the difficulty in self-alignment due to the extremely small space between the gate structures can also be avoided.
    • 在制造NOR闪速存储器的方法中,当存储器件尺寸进一步减小时,省略在栅极结构的两个侧面处形成间隔物,并且两个栅极结构之间的间隔可以直接用介电间隔件 或浅沟槽隔离(STI)层。 因此,可以避免在栅极结构之间的极小空间中形成间隔物而造成存储器件制造难度增大的问题。 该方法还能够省略形成硅化物层所需的自对准步骤。 因此,也可以避免由于栅极结构之间的极小空间而导致的自对准难度。
    • 8. 发明申请
    • FLASH MEMORY
    • 闪存
    • US20090086548A1
    • 2009-04-02
    • US11866018
    • 2007-10-02
    • Yider WuYung-Chung Lee
    • Yider WuYung-Chung Lee
    • G11C11/34
    • G11C16/0475
    • A flash memory applied in NAND and/or NOR flash memory has a silicon-oxide-nitride-oxide-silicon cell structure, uses channel-hot-electron injection as a write mechanism thereof to have a localized trapping characteristic, and uses hot-hole injection as an erase mechanism thereof. The flash memory uses an oxide-nitride-oxide structure to replace a floating gate, and thereby solves the problem of an entire leakage caused by a local leakage of the floating gate. The flash memory may be miniaturized without the problem of data mutual interference, and may be easily integrated into the CMOS process to largely reduce the manufacturing cost thereof. Meanwhile, the flash memory also enables faster program time and erase time.
    • 应用于NAND和/或NOR闪速存储器的闪速存储器具有氧化硅 - 氮化物 - 氧化物 - 硅电池结构,其通道 - 热电子注入作为其写入机制具有局部捕获特性,并且使用热孔 注射作为其擦除机制。 闪速存储器使用氧化物 - 氮化物 - 氧化物结构来代替浮动栅极,从而解决了浮栅的局部泄漏引起的整个泄漏的问题。 闪存可以小型化而没有数据相互干扰的问题,并且可以容易地集成到CMOS工艺中以大大降低其制造成本。 同时,闪存还可以实现更快的编程时间和擦除时间。
    • 9. 发明申请
    • METHOD OF MANUFACTURING FLASH MEMORY DEVICE
    • 制造闪存存储器件的方法
    • US20100227447A1
    • 2010-09-09
    • US12399124
    • 2009-03-06
    • Hung-Wei ChenYider Wu
    • Hung-Wei ChenYider Wu
    • H01L21/8234
    • H01L27/11519H01L29/40114
    • A flash memory device manufacturing process includes the steps of providing a semiconductor substrate; forming two gate structures on the substrate; performing an ion implantation process to form two first source regions in the substrate at two lateral outer sides of the two gate structures; performing a further ion implantation process to form a first drain region in the substrate between the two gate structures; performing a pocket implantation process between the gate structures to form two doped regions in the substrate at two opposite sides of the first drain region; forming two facing L-shaped spacer walls between the two gate structures above the first drain region; performing an ion implantation process to form a second drain region beneath the first drain region, both of which having a steep junction profile compared to the first source regions; and forming a barrier plug above the first drain region.
    • 闪存器件制造方法包括以下步骤:提供半导体衬底; 在基板上形成两个栅极结构; 执行离子注入工艺以在两个栅极结构的两个侧向外侧处在衬底中形成两个第一源极区域; 执行另外的离子注入工艺以在所述两个栅极结构之间的所述衬底中形成第一漏极区; 在所述栅极结构之间执行凹穴注入工艺,以在所述衬底中在所述第一漏极区的两个相对侧形成两个掺杂区域; 在所述第一漏极区域之上的所述两个栅极结构之间形成两个面对的L形间隔壁; 执行离子注入工艺以在所述第一漏极区域下方形成第二漏极区域,所述第二漏极区域与所述第一源极区域相比具有陡峭的接合轮廓; 以及在所述第一漏极区域上方形成阻挡塞。
    • 10. 发明申请
    • METHOD FOR MANUFACTURING NONVOLATILE SEMICONDUCTOR MEMORY DEVICE STRUCTURE
    • 制造非易失性半导体存储器件结构的方法
    • US20100197108A1
    • 2010-08-05
    • US12761460
    • 2010-04-16
    • Yider Wu
    • Yider Wu
    • H01L21/28H01L21/762
    • H01L29/78H01L27/115H01L27/11521H01L27/11524
    • A non-volatile semiconductor manufacturing method comprises the steps of making element isolation/insulation films that partitions element-forming regions in a semiconductor substrate; stacking a floating gate on the semiconductor substrate via a first gate insulating film; stacking a second gate insulating film formed on the floating gate, and stacking a control gate formed on the floating gate via the second gate insulating film, and self-aligning source and drain diffusion area with the control gate. In the process of stacking a floating gate by partially etching a field oxide film in a select gate area, followed by floating gate formed in a element-forming region and select gate region, and followed by a chemical mechanical polish(CMP) process, both floating gate and select gate is hereby formed simultaneously. Thereby, when memory cells are miniaturized, the invention allows the process to be simple and reduce the defect density.
    • 非易失性半导体制造方法包括以下步骤:制造在半导体衬底中分隔元件形成区域的元件隔离/绝缘膜; 通过第一栅极绝缘膜在半导体衬底上堆叠浮置栅极; 堆叠形成在浮置栅极上的第二栅极绝缘膜,并且通过第二栅极绝缘膜堆叠形成在浮置栅极上的控制栅极以及与控制栅极的自对准源极和漏极扩散区域。 在通过在选择栅极区域中局部蚀刻场氧化物膜的同时堆叠浮栅的过程中,随后是形成在元件形成区域中的浮栅并选择栅极区域,然后进行化学机械抛光(CMP)工艺, 浮动门和选择门同时形成。 因此,当存储单元小型化时,本发明允许该过程简单并减少缺陷密度。