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    • 3. 发明申请
    • SEMICONDUCTOR PROCESS
    • 半导体工艺
    • US20150348789A1
    • 2015-12-03
    • US14288399
    • 2014-05-28
    • UNITED MICROELECTRONICS CORP.
    • Duan Quan LiaoWei ChengYikun ChenCHING HWA TEYXiao Zhong Zhu
    • H01L21/28
    • H01L21/28273H01L27/11521H01L27/11534
    • A semiconductor process includes the following steps. A first gate is formed on a substrate, wherein the first gate includes a stacked gate on the substrate and a cap on the stacked gate. A spacer material is formed to conformally cover the first gate and the substrate. The spacer material is etched to form a spacer on a side of the first gate and a block on the other side of the first gate corresponding to the side. A material covers the substrate, the block, the first gate and the spacer, wherein the top surface of the material is a flat surface. The block, the spacer and the material are pulled down with the same pulling selectivity so that an assisting gate is formed from the block and a selective gate is formed from the spacer.
    • 半导体工艺包括以下步骤。 第一栅极形成在衬底上,其中第一栅极包括衬底上的堆叠栅极和堆叠栅极上的帽。 形成间隔物材料以保形地覆盖第一栅极和衬底。 蚀刻间隔材料以在第一栅极的一侧上形成间隔物,并且在第一栅极的另一侧上对应于侧面的块。 材料覆盖基板,块,第一栅极和间隔件,其中材料的顶表面是平坦的表面。 块,间隔物和材料以相同的拉拔选择性被拉下,使得从块形成辅助栅极,并且由间隔物形成选择栅极。
    • 8. 发明授权
    • Semiconductor process
    • 半导体工艺
    • US09401280B2
    • 2016-07-26
    • US14288399
    • 2014-05-28
    • UNITED MICROELECTRONICS CORP.
    • Duan Quan LiaoWei ChengYikun ChenChing Hwa TeyXiao Zhong Zhu
    • H01L21/28H01L27/115
    • H01L21/28273H01L27/11521H01L27/11534
    • A semiconductor process includes the following steps. A first gate is formed on a substrate, wherein the first gate includes a stacked gate on the substrate and a cap on the stacked gate. A spacer material is formed to conformally cover the first gate and the substrate. The spacer material is etched to form a spacer on a side of the first gate and a block on the other side of the first gate corresponding to the side. A material covers the substrate, the block, the first gate and the spacer, wherein the top surface of the material is a flat surface. The block, the spacer and the material are pulled down with the same pulling selectivity so that an assisting gate is formed from the block and a selective gate is formed from the spacer.
    • 半导体工艺包括以下步骤。 第一栅极形成在衬底上,其中第一栅极包括衬底上的堆叠栅极和堆叠栅极上的帽。 形成间隔物材料以保形地覆盖第一栅极和衬底。 蚀刻间隔材料以在第一栅极的一侧上形成间隔物,并且在第一栅极的另一侧上对应于侧面的块。 材料覆盖基板,块,第一栅极和间隔件,其中材料的顶表面是平坦的表面。 块,间隔物和材料以相同的拉拔选择性被拉下,使得从块形成辅助栅极,并且由间隔物形成选择栅极。