METHOD OF PATTERNING METAL ALLOY MATERIAL LAYER HAVING HAFNIUM AND MOLYBDENUM
    1.
    发明申请
    METHOD OF PATTERNING METAL ALLOY MATERIAL LAYER HAVING HAFNIUM AND MOLYBDENUM 有权
    具有铪和钼的金属合金材料层的方法

    公开(公告)号:US20110226736A1

    公开(公告)日:2011-09-22

    申请号:US13118604

    申请日:2011-05-31

    IPC分类号: C23F1/02 C23F1/26

    CPC分类号: C23F1/26 H01L21/32134

    摘要: A method of patterning a metal alloy material layer having hafnium and molybdenum. The method includes forming a patterned mask layer on a metal alloy material layer having hafnium and molybdenum on a substrate. The patterned mask layer is used as a mask and an etching process is performed using an etchant on the metal alloy material layer having hafnium and molybdenum so as to form a metal alloy layer having hafnium and molybdenum. The etchant includes at least nitric acid, hydrofluoric acid and sulfuric acid. The patterned mask layer is removed.

    摘要翻译: 图案化具有铪和钼的金属合金材料层的方法。 该方法包括在基板上的具有铪和钼的金属合金材料层上形成图案化掩模层。 图案化掩模层用作掩模,并且使用具有铪和钼的金属合金材料层上的蚀刻剂进行蚀刻处理,以形成具有铪和钼的金属合金层。 蚀刻剂至少包括硝酸,氢氟酸和硫酸。 去除图案化的掩模层。

    Method of patterning metal alloy material layer having hafnium and molybdenum
    2.
    发明授权
    Method of patterning metal alloy material layer having hafnium and molybdenum 有权
    具有铪和钼的金属合金材料层的图形化方法

    公开(公告)号:US08691705B2

    公开(公告)日:2014-04-08

    申请号:US13118604

    申请日:2011-05-31

    IPC分类号: H01L21/302 H01L21/461

    CPC分类号: C23F1/26 H01L21/32134

    摘要: A method of patterning a metal alloy material layer having hafnium and molybdenum. The method includes forming a patterned mask layer on a metal alloy material layer having hafnium and molybdenum on a substrate. The patterned mask layer is used as a mask and an etching process is performed using an etchant on the metal alloy material layer having hafnium and molybdenum so as to form a metal alloy layer having hafnium and molybdenum. The etchant includes at least nitric acid, hydrofluoric acid and sulfuric acid. The patterned mask layer is removed.

    摘要翻译: 图案化具有铪和钼的金属合金材料层的方法。 该方法包括在基板上的具有铪和钼的金属合金材料层上形成图案化掩模层。 图案化掩模层用作掩模,并且使用具有铪和钼的金属合金材料层上的蚀刻剂进行蚀刻处理,以形成具有铪和钼的金属合金层。 蚀刻剂至少包括硝酸,氢氟酸和硫酸。 去除图案化的掩模层。

    Method for forming a bottle-shaped trench
    7.
    发明授权
    Method for forming a bottle-shaped trench 有权
    形成瓶状沟槽的方法

    公开(公告)号:US06696344B1

    公开(公告)日:2004-02-24

    申请号:US10384947

    申请日:2003-03-10

    IPC分类号: H01L218242

    CPC分类号: H01L27/1087

    摘要: A method for forming a bottle-shaped trench. A semiconductor substrate having a pad stack layer thereon and a trench in a predetermined position is provided. A first dielectric layer is then formed on the lower sidewalls of the trench. Next, a second dielectric layer is formed to cover the upper sidewalls of the trench and the pad stack layer. Then, a protection layer is formed on the sidewalls portions of the second dielectric layer. The first dielectric layer is then removed to expose the lower portion of trench. Wet stripping is then carried out to increase the radius of the lower portion of the trench thereby forming a bottle-shaped trench.

    摘要翻译: 一种用于形成瓶形沟槽的方法。 提供其上具有衬垫叠层的半导体衬底和处于预定位置的沟槽。 然后在沟槽的下侧壁上形成第一电介质层。 接下来,形成第二电介质层以覆盖沟槽和衬垫叠层层的上侧壁。 然后,在第二电介质层的侧壁部分上形成保护层。 然后去除第一电介质层以暴露沟槽的下部。 然后进行湿剥离以增加沟槽下部的半径,从而形成瓶形沟槽。

    Method for forming bottle trenches
    8.
    发明授权
    Method for forming bottle trenches 有权
    瓶沟形成方法

    公开(公告)号:US06716757B2

    公开(公告)日:2004-04-06

    申请号:US10430874

    申请日:2003-05-07

    IPC分类号: H01L21762

    CPC分类号: H01L29/66181 H01L21/3065

    摘要: A method for forming bottle trenches. The method comprises providing a substrate formed with a pad stack layer on the top, and a deep trench with protective layer on the upper portions of sidewalls thereof, implanting ions into the lower portions of sidewalls and bottom of the trench not covered by the protective layer to amorphize the atomic structure of the sidewalls and bottom, oxidizing the amorphous sidewalls and bottom of the trench to form a bottle-shaped oxide layer thereon, and removing the bottle-shaped oxide layer.

    摘要翻译: 一种形成瓶沟的方法。 该方法包括在顶部提供形成有衬垫叠层的衬底和在其侧壁的上部上具有保护层的深沟槽,将离子注入未被保护层覆盖的沟槽的侧壁和底部的下部 使侧壁和底部的原子结构非晶化,氧化无定形侧壁和沟槽底部以在其上形成瓶状氧化物层,并且去除瓶状氧化物层。

    RECESSED CHANNEL DEVICE AND METHOD THEREOF
    10.
    发明申请
    RECESSED CHANNEL DEVICE AND METHOD THEREOF 审中-公开
    记忆通道装置及其方法

    公开(公告)号:US20090134442A1

    公开(公告)日:2009-05-28

    申请号:US12103590

    申请日:2008-04-15

    IPC分类号: H01L27/108 H01L21/8242

    摘要: A method for forming a recessed channel device includes providing a substrate with a plurality of trench capacitors formed therein, each of the trench capacitors including a plug protruding above the substrate; forming a spacer on each of the plugs; forming a plurality of trench isolations along a first direction in the substrate adjacent to the trench capacitors so as to define an active area exposing the substrate; removing a portion of the substrate by using the spacers and the trench isolations as a mask to form a recessed channel; and trimming the recessed channel so that a surface profile of the recessed channel presents a three-dimensional shape. A recessed channel device with a rounded channel profile is also provided.

    摘要翻译: 用于形成凹陷通道器件的方法包括:提供其上形成有多个沟槽电容器的衬底,每个沟槽电容器包括突出在衬底上方的插头; 在每个插头上形成间隔件; 在与所述沟槽电容器相邻的所述衬底中沿着第一方向形成多个沟槽隔离,以限定暴露所述衬底的有源区; 通过使用间隔物和沟槽隔离物作为掩模去除衬底的一部分以形成凹陷沟道; 并且修整凹陷通道,使得凹陷通道的表面轮廓呈现三维形状。 还提供了具有圆形通道轮廓的凹槽通道装置。