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    • 4. 发明授权
    • Methods of manufacturing charge trap-type non-volatile memory devices
    • 制造电荷陷阱型非易失性存储器件的方法
    • US08178408B2
    • 2012-05-15
    • US12651781
    • 2010-01-04
    • Hak-Sun LeeKyoung-Sub ShinJeong-Dong Choe
    • Hak-Sun LeeKyoung-Sub ShinJeong-Dong Choe
    • H01L21/336H01L21/3205
    • H01L27/11568
    • Some methods are directed to manufacturing charge trap-type non-volatile memory devices. An isolation layer pattern can be formed that extends in a first direction in a substrate. A recess unit is formed in the substrate by recessing an exposed surface of the substrate adjacent to the isolation layer pattern. A tunnel insulating layer and a charge trap layer are sequentially formed on the substrate. The tunnel insulating layer and the charge trap layer are patterned to form an isolated island-shaped tunnel insulating layer pattern and an isolated island-shaped charge trap layer pattern by etching defined regions of the substrate, the isolation layer pattern, the tunnel insulating layer, and the charge trap layer until a top surface of the charge trap layer that is disposed on a bottom surface of the recess unit is aligned with a top surface of the isolation layer pattern. A blocking insulating layer is formed that covers the charge trap layer pattern, the isolation layer pattern, and a defined region of the substrate interposed between the charge trap patterns. A gate electrode pattern is formed on the blocking insulating layer to face the charge trap layer pattern. This manufacturing process may reduce charge spreading between unit memory cells and/or may prevent/avoid reduction in the breakdown voltage of the blocking insulating layer.
    • 一些方法涉及制造电荷陷阱型非易失性存储器件。 可以形成在衬底中沿第一方向延伸的隔离层图案。 通过使邻近隔离层图案的基板的暴露表面凹陷而在基板中形成凹部单元。 隧道绝缘层和电荷陷阱层依次形成在基板上。 图案化隧道绝缘层和电荷陷阱层,通过蚀刻衬底的限定区域,隔离层图案,隧道绝缘层,隔离层状图案,隔离层状图案,隧道绝缘层, 并且电荷陷阱层直到设置在凹陷单元的底表面上的电荷陷阱层的顶表面与隔离层图案的顶表面对准。 形成了覆盖电荷陷阱层图案,隔离层图案和插入在电荷阱图案之间的基板的限定区域的阻挡绝缘层。 在阻挡绝缘层上形成面对电荷陷阱层图案的栅电极图案。 该制造过程可以减小单元存储单元之间的电荷扩展和/或可以防止/避免阻塞绝缘层的击穿电压的降低。
    • 5. 发明授权
    • Method of manufacturing non-volatile semiconductor devices
    • 制造非易失性半导体器件的方法
    • US08003469B2
    • 2011-08-23
    • US12611362
    • 2009-11-03
    • Hak-Sun LeeKyoung-Sub Shin
    • Hak-Sun LeeKyoung-Sub Shin
    • H01L21/336
    • H01L27/11573
    • A non-volatile semiconductor device includes a memory cell in a first area of a substrate, a low voltage transistor in a second area of the substrate, and a high voltage transistor in a third area of the substrate. The memory cell includes a tunnel insulation layer formed on the substrate, a charge trapping layer pattern formed on the tunnel insulation layer in the first area of the substrate, a blocking layer pattern formed on the charge trapping layer pattern and a control gate formed on the blocking layer pattern. The control gate has a width substantially smaller than a width of the blocking layer pattern and the width of the control gate is substantially smaller than a width of the charge trapping layer pattern. In addition, an offset is formed between the control gate and the blocking layer pattern such that a spacer is not formed on a sidewall of the control gate.
    • 非易失性半导体器件包括在衬底的第一区域中的存储单元,在衬底的第二区域中的低电压晶体管,以及在衬底的第三区域中的高压晶体管。 存储单元包括形成在基板上的隧道绝缘层,形成在基板的第一区域中的隧道绝缘层上的电荷俘获层图案,形成在电荷俘获层图案上的阻挡层图案和形成在基板上的控制栅极 阻挡层图案。 控制栅极的宽度显着小于阻挡层图案的宽度,并且控制栅极的宽度基本上小于电荷俘获层图案的宽度。 此外,在控制栅极和阻挡层图案之间形成偏移,使得在控制栅极的侧壁上未形成间隔物。
    • 8. 发明申请
    • METHOD OF MANUFACTURING NON-VOLATILE SEMICONDUCTOR DEVICES
    • 制造非易失性半导体器件的方法
    • US20100112768A1
    • 2010-05-06
    • US12611362
    • 2009-11-03
    • Hak-Sun LEEKyoung-Sub Shin
    • Hak-Sun LEEKyoung-Sub Shin
    • H01L21/336
    • H01L27/11573
    • A non-volatile semiconductor device includes a memory cell in a first area of a substrate, a low voltage transistor in a second area of the substrate, and a high voltage transistor in a third area of the substrate. The memory cell includes a tunnel insulation layer formed on the substrate, a charge trapping layer pattern formed on the tunnel insulation layer in the first area of the substrate, a blocking layer pattern formed on the charge trapping layer pattern and a control gate formed on the blocking layer pattern. The control gate has a width substantially smaller than a width of the blocking layer pattern and the width of the control gate is substantially smaller than a width of the charge trapping layer pattern. In addition, an offset is formed between the control gate and the blocking layer pattern such that a spacer is not formed on a sidewall of the control gate.
    • 非易失性半导体器件包括在衬底的第一区域中的存储单元,在衬底的第二区域中的低电压晶体管,以及在衬底的第三区域中的高压晶体管。 存储单元包括形成在基板上的隧道绝缘层,形成在基板的第一区域中的隧道绝缘层上的电荷俘获层图案,形成在电荷俘获层图案上的阻挡层图案和形成在基板上的控制栅极 阻挡层图案。 控制栅极的宽度显着小于阻挡层图案的宽度,并且控制栅极的宽度基本上小于电荷俘获层图案的宽度。 此外,在控制栅极和阻挡层图案之间形成偏移,使得在控制栅极的侧壁上未形成间隔物。
    • 9. 发明授权
    • Method for forming fine patterns of a semiconductor device using double patterning
    • 使用双重图案形成半导体器件的精细图案的方法
    • US07550391B2
    • 2009-06-23
    • US11730292
    • 2007-03-30
    • Kyung-yub JeonMyeong-cheol KimHak-sun LeeJe-woo Han
    • Kyung-yub JeonMyeong-cheol KimHak-sun LeeJe-woo Han
    • H01L21/302H01L21/461
    • H01L21/0338H01L21/0337H01L21/3086H01L21/3088H01L21/32139Y10S438/947
    • A method for forming fine patterns of a semiconductor device is disclosed. The method includes forming an etch film on a substrate, forming a protection film on the etch film, forming a hard mask layer on the protection film, and forming a plurality of first mask patterns characterized by a first pitch on the hard mask layer. The method further comprises forming a plurality of second mask patterns, forming hard mask patterns exposing portions of the protection film by etching the hard mask layer using the first and second mask patterns as an etch mask, and removing the first and second mask patterns. The method still further comprises exposing portions of the etch film and forming a plurality of fine patterns characterized by a second pitch equal to half of the first pitch by etching the etch film using at least the hard mask patterns as an etch mask.
    • 公开了一种用于形成半导体器件的精细图案的方法。 该方法包括在衬底上形成蚀刻膜,在蚀刻膜上形成保护膜,在保护膜上形成硬掩模层,以及在硬掩模层上形成以第一间距为特征的多个第一掩模图案。 该方法还包括形成多个第二掩模图案,通过使用第一和第二掩模图案作为蚀刻掩模蚀刻硬掩模层,形成暴露部分保护膜的硬掩模图案,以及去除第一和第二掩模图案。 该方法还包括暴露部分蚀刻膜并且通过使用至少硬掩模图案作为蚀刻掩模蚀刻蚀刻膜来形成多个精细图案,其特征在于具有等于第一间距的一半的第二间距。
    • 10. 发明申请
    • Method of forming fine patterns of semiconductor device using double patterning
    • 使用双重图案形成半导体器件精细图案的方法
    • US20080188083A1
    • 2008-08-07
    • US11810200
    • 2007-06-05
    • Kyung-yub JeonMyeong-cheol KimHak-sun Lee
    • Kyung-yub JeonMyeong-cheol KimHak-sun Lee
    • H01L21/311
    • H01L21/32139H01L21/0337H01L21/0338H01L21/31116H01L21/32137
    • A method of forming fine patterns of a semiconductor device includes double etching by changing a quantity of producing polymer by-products to etch a film with different thicknesses in regions having different pattern densities. In a first etching, reactive ion etching (RIE) is performed upon a buffer layer and a hardmask layer both in a low-density pattern region and a high-density pattern region under a first etching ambient until an etch film is exposed in the low-density pattern region using mask patterns as an etch mask. In second etching for forming the hardmask patterns, using the mask patterns as an etch mask, the hardmask layer is etched until the etch film is exposed in the high-density pattern region while accumulating polymer by-products on the etch film in the low-density pattern region under a second etching ambient having polymer by-products produced greater than in the first etching ambient.
    • 形成半导体器件的精细图案的方法包括通过改变产生聚合物副产物的量来双重蚀刻,以在具有不同图案密度的区域中蚀刻具有不同厚度的膜。 在第一蚀刻中,在第一蚀刻环境下,在低密度图案区域和高密度图案区域中的缓冲层和硬掩模层上执行反应离子蚀刻(RIE),直到蚀刻膜暴露于低 使用掩模图案作为蚀刻掩模的密度图案区域。 在用于形成硬掩模图案的第二蚀刻中,使用掩模图案作为蚀刻掩模,硬掩模层被蚀刻直到蚀刻膜在高密度图案区域中暴露,同时在低密度图案区域中的聚合物副产物上积累在蚀刻膜上, 在第二蚀刻环境下具有比在第一蚀刻环境中产生的聚合物副产物大的密度图案区域。