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    • 3. 发明授权
    • Phase changeable structure and method of forming the same
    • 相变结构及其形成方法
    • US07569430B2
    • 2009-08-04
    • US11674580
    • 2007-02-13
    • Jun-Soo BaeHideki HoriiJi-Hye YiYoung-Soo Lim
    • Jun-Soo BaeHideki HoriiJi-Hye YiYoung-Soo Lim
    • H01L21/82
    • H01L45/1675H01L45/06H01L45/1233H01L45/144
    • The present invention relates to a phase changeable structure having decreased amounts of defects and a method of forming the phase changeable structure. A stacked composite is first formed by (i) forming a phase changeable layer including a chalcogenide is formed on a lower electrode, (ii) forming an etch stop layer having a first etch rate with respect to a first etching material including chlorine on the phase changeable layer, and (iii) forming a conductive layer having a second etch rate with respect to the first etching material on the etch stop layer. The conductive layer of the stacked composite is then etched using the first etching material to form an upper electrode. The etch stop layer and the phase changeable layer are then etched using a second etching material that is substantially flee of chlorine to form an etch stop pattern and a phase changeable pattern, respectively.
    • 本发明涉及具有减少的缺陷量的相变结构和形成相变结构的方法。 首先通过(i)在下电极上形成包括硫族化物的相变层来形成堆叠复合体,(ii)形成相对于在相上包括氯的第一蚀刻材料具有第一蚀刻速率的蚀刻停止层 可变层,和(iii)形成相对于蚀刻停止层上的第一蚀刻材料具有第二蚀刻速率的导电层。 然后使用第一蚀刻材料蚀刻层叠复合体的导电层以形成上电极。 然后使用基本上不含氯的第二蚀刻材料来蚀刻蚀刻停止层和相变层,以分别形成蚀刻停止图案和相变图案。
    • 4. 发明申请
    • Method of Manufacturing a Semiconductor Device
    • 制造半导体器件的方法
    • US20090170254A1
    • 2009-07-02
    • US12343134
    • 2008-12-23
    • Hwa-Sung RheeHo LeeMyung-Sun KimJi-Hye Yi
    • Hwa-Sung RheeHo LeeMyung-Sun KimJi-Hye Yi
    • H01L21/8238
    • H01L21/823807H01L21/26506H01L21/823814H01L29/165H01L29/665H01L29/66628H01L29/66636H01L29/7848
    • In a method of manufacturing a semiconductor device, a first gate electrode and a second gate electrode are formed in a first area and a second area of a substrate. Non-crystalline regions are formed in the first area of the substrate adjacent the first gate electrode. A layer having a first stress is formed on the substrate and the first and the second gate electrodes. A mask is formed on a first portion of the layer in the first area of the substrate to expose a second portion of the layer in the second area. The second portion is etched to form a sacrificial spacer on a sidewall of the second gate electrode. The second area of the substrate is partially etched using the mask, the second gate electrode and the sacrificial spacer, to form recesses in the second area of the substrate adjacent the second gate electrode. Patterns having a second stress are formed in the recesses.
    • 在制造半导体器件的方法中,第一栅电极和第二栅电极形成在衬底的第一区域和第二区域中。 在与第一栅电极相邻的衬底的第一区域中形成非结晶区域。 在基板和第一和第二栅电极上形成具有第一应力的层。 掩模在衬底的第一区域中的该层的第一部分上形成以暴露第二区域中该层的第二部分。 蚀刻第二部分以在第二栅电极的侧壁上形成牺牲间隔物。 使用掩模,第二栅电极和牺牲隔离物部分蚀刻衬底的第二区域,以在与第二栅电极相邻的衬底的第二区域中形成凹陷。 在凹部中形成具有第二应力的图案。