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1. 发明授权

US07256429B2 Memory cell with buffered-layer 有权
标题翻译：带缓冲层的存储单元
公开(公告)号：US07256429B2
公开(公告)日：2007-08-14
申请号：US11314222
申请日：2005-12-21
申请人： Sheng Teng Hsu , Tingkai Li , Fengyan Zhang , Wei Pan , Wei-Wei Zhuang , David R. Evans , Masayuki Tajiri
发明人： Sheng Teng Hsu , Tingkai Li , Fengyan Zhang , Wei Pan , Wei-Wei Zhuang , David R. Evans , Masayuki Tajiri
IPC分类号： H01L21/00
CPC分类号： H01L27/101 , G11C13/0007 , G11C13/0069 , G11C2013/0073 , G11C2213/31 , G11C2213/51 , G11C2213/56 , G11C2213/79 , H01L27/2436 , H01L45/04 , H01L45/12 , H01L45/1233 , H01L45/147
摘要： A method is provided for forming a buffered-layer memory cell. The method comprises: forming a bottom electrode; forming a colossal magnetoresistance (CMR) memory film overlying the bottom electrode; forming a memory-stable semiconductor buffer layer, typically a metal oxide, overlying the memory film; and, forming a top electrode overlying the semiconductor buffer layer. In some aspects of the method the semiconductor buffer layer is formed from YBa2Cu3O7−X (YBCO), indium oxide (In2O3), or ruthenium oxide (RuO2), having a thickness in the range of 10 to 200 nanometers (nm). The top and bottom electrodes may be TiN/Ti, Pt/TiN/Ti, In/TiN/Ti, PtRhOx compounds, or PtIrOx compounds. The CMR memory film may be a Pr1−XCaXMnO3 (PCMO) memory film, where x is in the region between 0.1 and 0.6, with a thickness in the range of 10 to 200 nm.
摘要翻译：提供了一种用于形成缓冲层存储单元的方法。该方法包括：形成底部电极; 形成覆盖底部电极的巨大磁阻（CMR）记忆膜; 形成存储器稳定的半导体缓冲层，通常为覆盖存储膜的金属氧化物; 并且形成覆盖半导体缓冲层的顶部电极。在该方法的一些方面，半导体缓冲层由YBa 2 N 3 O 7-X（YBCO），氧化铟（In 2或2 O 3）或氧化钌（RuO 2 N 2），其厚度在10-200纳米（nm）的范围内。顶部和底部电极可以是TiN / Ti，Pt / TiN / Ti，In / TiN / Ti，PtRhOx化合物或PtIrOx化合物。 CMR存储器膜可以是Pr 1-X C x MnO 3（PCMO）存储膜，其中x在0.1之间的区域和0.6，厚度在10至200nm的范围内。

2. 发明授权

US07141481B2 Method of fabricating nano-scale resistance cross-point memory array 有权
标题翻译：制造纳米级电阻交叉点存储阵列的方法
公开(公告)号：US07141481B2
公开(公告)日：2006-11-28
申请号：US10909218
申请日：2004-07-29
申请人： Sheng Teng Hsu , Wei-Wei Zhuang , Wei Pan , Fengyan Zhang
发明人： Sheng Teng Hsu , Wei-Wei Zhuang , Wei Pan , Fengyan Zhang
IPC分类号： H01L21/20
CPC分类号： G11C13/0007 , G11C2213/31 , G11C2213/77 , H01L27/2409 , H01L27/2463 , H01L45/04 , H01L45/1233 , H01L45/147 , H01L45/1683
摘要： A method of fabricating a nano-scale resistance cross-point memory array includes preparing a silicon substrate; depositing silicon oxide on the substrate to a predetermined thickness; forming a nano-scale trench in the silicon oxide; depositing a first connection line in the trench; depositing a memory resistor layer in the trench on the first connection line; depositing a second connection line in the trench on the memory resistor layer; and completing the memory array. A cross-point memory array includes a silicon substrate; a first connection line formed on the substrate; a colossal magnetoresistive layer formed on the first connection line; a silicon nitride layer formed on a portion of the colossal magnetoresistive layer; and a second connection line formed adjacent the silicon nitride layer and on the colossal magnetoresistive layer.
摘要翻译：制造纳米尺度电阻交叉点存储器阵列的方法包括制备硅衬底; 在衬底上沉积氧化硅至预定厚度; 在氧化硅中形成纳米尺度的沟槽; 在沟槽中沉积第一连接线; 在第一连接线上的沟槽中沉积记忆电阻层; 在所述存储器电阻层的沟槽中沉积第二连接线; 并完成内存阵列。交叉点存储器阵列包括硅衬底; 形成在所述基板上的第一连接线; 形成在第一连接线上的巨大的磁阻层; 形成在巨磁阻层的一部分上的氮化硅层; 以及与氮化硅层和巨磁阻层相邻形成的第二连接线。

3. 发明授权

US06911361B2 Low temperature processing of PCMO thin film on Ir substrate for RRAM application 有权
标题翻译：用于RRAM应用的Ir衬底上的PCMO薄膜的低温处理
公开(公告)号：US06911361B2
公开(公告)日：2005-06-28
申请号：US10384846
申请日：2003-03-10
申请人： Fengyan Zhang , Wei-Wei Zhuang , Wei Pan , Sheng Teng Hsu
发明人： Fengyan Zhang , Wei-Wei Zhuang , Wei Pan , Sheng Teng Hsu
IPC分类号： H01L27/108 , G11C13/00 , H01L45/00 , H01L21/8242 , H01L21/31 , H01L21/469
CPC分类号： G11C13/0007 , G11C2213/31 , H01L45/04 , H01L45/1233 , H01L45/1253 , H01L45/147 , H01L45/1608
摘要： A method of applying a PCMO thin film on an iridium substrate for use in a RRAM device, includes preparing a substrate; depositing a barrier layer on the substrate; depositing a layer of iridium on the barrier layer; spin coating a layer of PCMO on the iridium; baking the PCMO and substrate in a three-step baking process; post-bake annealing the substrate and the PCMO in a RTP chamber; repeating said spin coating, baking and annealing steps until the PCMO has a desired thickness; annealing the substrate and PCMO; depositing a top electrode; and completing the RRAM device.
摘要翻译：在用于RRAM器件的铱衬底上施加PCMO薄膜的方法包括制备衬底; 在衬底上沉积阻挡层; 在阻挡层上沉积一层铱; 在铱上旋涂一层PCMO; 在三步烘烤过程中烘烤PCMO和基材; 在RTP室中对基板和PCMO进行后烘烤退火; 重复所述旋涂，烘烤和退火步骤直到PCMO具有所需的厚度; 退火基板和PCMO; 沉积顶部电极; 并完成RRAM设备。

4. 发明授权

US06774004B1 Nano-scale resistance cross-point memory array 有权
标题翻译：纳米级电阻交叉点存储阵列
公开(公告)号：US06774004B1
公开(公告)日：2004-08-10
申请号：US10391357
申请日：2003-03-17
申请人： Sheng Teng Hsu , Wei-Wei Zhuang , Wei Pan , Fengyan Zhang
发明人： Sheng Teng Hsu , Wei-Wei Zhuang , Wei Pan , Fengyan Zhang
IPC分类号： H01L2120
CPC分类号： G11C13/0007 , G11C2213/31 , G11C2213/77 , H01L27/2409 , H01L27/2463 , H01L45/04 , H01L45/1233 , H01L45/147 , H01L45/1683
摘要： A method of fabricating a nano-scale resistance cross-point memory array includes preparing a silicon substrate; depositing silicon oxide on the substrate to a predetermined thickness; forming a nano-scale trench in the silicon oxide; depositing a first connection line in the trench; depositing a memory resistor layer in the trench on the first connection line; depositing a second connection line in the trench on the memory resistor layer; and completing the memory array. A cross-point memory array includes a silicon substrate; a first connection line formed on the substrate; a colossal magnetoresistive layer formed on the first connection line; a silicon nitride layer formed on a portion of the colossal magnetoresistive layer; and a second connection line formed adjacent the silicon nitride layer and on the colossal magnetoresistive layer.
摘要翻译：制造纳米尺度电阻交叉点存储器阵列的方法包括制备硅衬底; 在衬底上沉积氧化硅至预定厚度; 在氧化硅中形成纳米尺度的沟槽; 在沟槽中沉积第一连接线; 在第一连接线上的沟槽中沉积记忆电阻层; 在所述存储器电阻层的沟槽中沉积第二连接线; 并完成内存阵列。交叉点存储器阵列包括硅衬底; 形成在所述基板上的第一连接线; 形成在第一连接线上的巨大的磁阻层; 形成在巨磁阻层的一部分上的氮化硅层; 以及与氮化硅层和巨磁阻层相邻形成的第二连接线。

5. 发明授权

US06849891B1 RRAM memory cell electrodes 有权
标题翻译： RRAM存储单元电极
公开(公告)号：US06849891B1
公开(公告)日：2005-02-01
申请号：US10730584
申请日：2003-12-08
申请人： Sheng Teng Hsu , Wei Pan , Fengyan Zhang , Wei-Wei Zhuang , Tingkai Li
发明人： Sheng Teng Hsu , Wei Pan , Fengyan Zhang , Wei-Wei Zhuang , Tingkai Li
IPC分类号： H01L21/28 , G11C13/00 , G11C16/02 , H01L21/8246 , H01L27/105 , H01L27/108 , H01L27/115 , H01L27/22 , H01L29/68 , H01L39/00 , H01L43/08 , H01L45/00 , H01L29/94
CPC分类号： G11C13/0007 , G11C2213/31 , G11C2213/77 , H01L45/04 , H01L45/1233 , H01L45/1253 , H01L45/147 , H01L45/1675
摘要： A RRAM memory cell is formed on a silicon substrate having a operative junction therein and a metal plug formed thereon, includes a first oxidation resistive layer; a first refractory metal layer; a CMR layer; a second refractory metal layer; and a second oxidation resistive layer. A method of fabricating a multi-layer electrode RRAM memory cell includes preparing a silicon substrate; forming a junction in the substrate taken from the group of junctions consisting of N+ junctions and P+ junctions; depositing a metal plug on the junction; depositing a first oxidation resistant layer on the metal plug; depositing a first refractory metal layer on the first oxidation resistant layer; depositing a CMR layer on the first refractory metal layer; depositing a second refractory metal layer on the CMR layer; depositing a second oxidation resistant layer on the second refractory metal layer; and completing the RRAM memory cell.
摘要翻译：在其上具有工作结的硅衬底上形成有一个RRAM存储单元和形成在其上的金属插塞，包括第一氧化电阻层; 第一难熔金属层; 一个CMR层; 第二难熔金属层; 和第二氧化电阻层。制造多层电极RRAM存储单元的方法包括制备硅衬底; 从由N +结和P +结组成的接头组中形成在衬底中的结; 在接头上沉积金属塞; 在金属插塞上沉积第一抗氧化层; 在第一耐氧化层上沉积第一难熔金属层; 在第一难熔金属层上沉积CMR层; 在CMR层上沉积第二难熔金属层; 在所述第二难熔金属层上沉积第二抗氧化层; 并完成RRAM存储单元。

6. 发明授权

US07029924B2 Buffered-layer memory cell 失效
标题翻译：缓冲层存储单元
公开(公告)号：US07029924B2
公开(公告)日：2006-04-18
申请号：US10755654
申请日：2004-01-12
申请人： Sheng Teng Hsu , Tingkai Li , Fengyan Zhang , Wei Pan , Wei-Wei Zhuang , David R. Evans , Masayuki Tajiri
发明人： Sheng Teng Hsu , Tingkai Li , Fengyan Zhang , Wei Pan , Wei-Wei Zhuang , David R. Evans , Masayuki Tajiri
IPC分类号： H01L21/00
CPC分类号： H01L27/101 , G11C13/0007 , G11C13/0069 , G11C2013/0073 , G11C2213/31 , G11C2213/51 , G11C2213/56 , G11C2213/79 , H01L27/2436 , H01L45/04 , H01L45/12 , H01L45/1233 , H01L45/147
摘要： A method is provided for forming a buffered-layer memory cell. The method comprises: forming a bottom electrode; forming a colossal magnetoresistance (CMR) memory film overlying the bottom electrode; forming a memory-stable semiconductor buffer layer, typically a metal oxide, overlying the memory film; and, forming a top electrode overlying the semiconductor buffer layer. In some aspects of the method the semiconductor buffer layer is formed from YBa2Cu3O7-X (YBCO), indium oxide (In2O3), or ruthenium oxide (RuO2), having a thickness in the range of 10 to 200 nanometers (nm). The top and bottom electrodes may be TiN/Ti, Pt/TiN/Ti, In/TiN/Ti, PtRhOx compounds, or PtIrOx compounds. The CMR memory film may be a Pr1-XCaXMnO3 (PCMO) memory film, where x is in the region between 0.1 and 0.6, with a thickness in the range of 10 to 200 nm.
摘要翻译：提供了一种用于形成缓冲层存储单元的方法。该方法包括：形成底部电极; 形成覆盖底部电极的巨大磁阻（CMR）记忆膜; 形成存储器稳定的半导体缓冲层，通常为覆盖存储膜的金属氧化物; 并且形成覆盖半导体缓冲层的顶部电极。在该方法的一些方面，半导体缓冲层由YBa 2 N 3 O 7-X（YBCO），氧化铟（In 2或2 O 3）或氧化钌（RuO 2 N 2），其厚度在10-200纳米（nm）的范围内。顶部和底部电极可以是TiN / Ti，Pt / TiN / Ti，In / TiN / Ti，PtRhOx化合物或PtIrOx化合物。 CMR存储器膜可以是Pr 1-X C x MnO 3（PCMO）存储膜，其中x在0.1之间的区域和0.6，厚度在10至200nm的范围内。

7. 发明授权

US06849564B2 1R1D R-RAM array with floating p-well 有权
标题翻译： 1R1D具有浮动p-well的R-RAM阵列
公开(公告)号：US06849564B2
公开(公告)日：2005-02-01
申请号：US10376796
申请日：2003-02-27
申请人： Sheng Teng Hsu , Wei Pan , Wei-Wei Zhuang , Fengyan Zhang
发明人： Sheng Teng Hsu , Wei Pan , Wei-Wei Zhuang , Fengyan Zhang
IPC分类号： G11C13/00 , H01L27/10 , H01L27/24 , H01L21/00
CPC分类号： H01L27/24 , G11C13/0007 , G11C2213/31 , G11C2213/72 , H01L27/10
摘要： A low-capacitance one-resistor/one-diode (1R1D) R-RAM array with a floating p-well is provided. The fabrication method comprises: forming an integrated circuit (IC) substrate; forming an n-doped buried layer (buried n layer) of silicon overlying the substrate; forming n-doped silicon sidewalls overlying the buried n layer; forming a p-doped well of silicon (p-well) overlying the buried n layer; and, forming a 1R1D R-RAM array overlying the p-well. Typically, the combination of the buried n layer and the n-doped sidewalls form an n-doped well (n-well) of silicon. Then, the p-well is formed inside the n-well. In other aspects, the p-well has sidewalls, and the method further comprises: forming an oxide insulator overlying the p-well sidewalls, between the n-well and the R-RAM array.
摘要翻译：提供具有浮动p-well的低电容单电阻/单二极管（1R1D）R-RAM阵列。该制造方法包括：形成集成电路（IC）衬底; 形成覆盖在衬底上的硅的n掺杂掩埋层（n层）; 形成覆盖掩埋n层的n掺杂硅侧壁; 形成覆盖在掩埋n层上的硅（p阱）的p掺杂阱; 并且形成覆盖p阱的1R1D R-RAM阵列。通常，掩埋n层和n掺杂侧壁的组合形成硅的n掺杂阱（n阱）。然后，p阱形成在n阱内。在其他方面，p阱具有侧壁，并且该方法还包括：在n阱和R-RAM阵列之间形成覆盖p阱侧壁的氧化物绝缘体。

8. 发明授权

US06887523B2 Method for metal oxide thin film deposition via MOCVD 有权
标题翻译：通过MOCVD沉积金属氧化物薄膜的方法
公开(公告)号：US06887523B2
公开(公告)日：2005-05-03
申请号：US10326347
申请日：2002-12-20
申请人： Wei-Wei Zhuang , Sheng Teng Hsu , Wei Pan
发明人： Wei-Wei Zhuang , Sheng Teng Hsu , Wei Pan
IPC分类号： H01L21/205 , C23C16/40 , H01L21/316 , H01L27/10 , H01L45/00
CPC分类号： G11C13/0007 , C23C16/40 , G11C2213/31 , H01L45/04 , H01L45/1233 , H01L45/147 , H01L45/1616
摘要： An MOCVD process is provided for forming metal-containing films having the general formula M′xM″(1−x)MyOz, wherein M′ is a metal selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Y, Sc, Yb, Lu, and Gd; M″ is a metal selected from the group consisting of Mg, Ca, Sr, Ba, Pb, Zn, and Cd; M is a metal selected from the group consisting of Mn, Ce, V, Fe, Co, Nb, Ta, Cr, Mo, W, Zr, Hf and Ni; x has a value from 0 to 1; y has a value of 0, 1 or 2; and z has an integer value of 1 through 7. The MOCVD process uses precursors selected from alkoxide precursors, β-diketonate precursors, and metal carbonyl precursors in combination to produce metal-containing films, including resistive memory materials.
摘要翻译：提供了一种用于形成具有通式M 1，X 2，M 1，M 2，M 1，M 2，其中M'是选自La，Ce，Pr，Nd，Pm，Sm，Y，Sc，Yb，Lu和Gd中的金属; M“是选自Mg，Ca，Sr，Ba，Pb，Zn和Cd的金属; M是选自Mn，Ce，V，Fe，Co，Nb，Ta，Cr，Mo，W，Zr，Hf和Ni中的金属; x的值为0到1; y的值为0,1或2; 并且z具有1至7的整数值.MOCVD方法组合使用选自醇盐前体，β-二酮前体和金属羰基前体的前体，以产生包含电阻记忆材料的含金属膜。

9. 发明授权

US07157287B2 Method of substrate surface treatment for RRAM thin film deposition 有权
标题翻译： RRAM薄膜沉积的基板表面处理方法
公开(公告)号：US07157287B2
公开(公告)日：2007-01-02
申请号：US10855088
申请日：2004-05-27
申请人： Wei-Wei Zhuang , Tingkai Li , Wei Pan , David R. Evans , Sheng Teng Hsu
发明人： Wei-Wei Zhuang , Tingkai Li , Wei Pan , David R. Evans , Sheng Teng Hsu
IPC分类号： H01L21/20
CPC分类号： C23C18/1216 , C23C18/1225 , C23C18/1241 , C23C18/1283 , C30B23/02 , C30B29/24 , H01L45/04 , H01L45/1233 , H01L45/1253 , H01L45/147 , H01L45/1608
摘要： A method of fabricating a CMR thin film for use in a semiconductor device includes preparing a CMR precursor in the form of a metal acetate based acetic acid solution; preparing a wafer; placing a wafer in a spin-coating chamber; spin-coating and heating the wafer according to the following: injecting the CMR precursor into a spin-coating chamber and onto the surface of the wafer in the spin-coating chamber; accelerating the wafer to a spin speed of between about 1500 RPM to 3000 RPM for about 30 seconds; baking the wafer at a temperature of about 180° C. for about one minute; ramping the temperature to about 230° C.; baking the wafer for about one minute at the ramped temperature; annealing the wafer at about 500° C. for about five minutes; repeating said spin-coating and heating steps at least three times; post-annealing the wafer at between about 500° C. to 600° C. for between about one to six hours in dry, clean air; and completing the semiconductor device.
摘要翻译：制造用于半导体器件的CMR薄膜的方法包括制备基于金属乙酸酯的乙酸溶液形式的CMR前体; 准备晶圆; 将晶片放置在旋涂室中; 根据以下步骤旋涂和加热晶片：将CMR前体注入旋涂室并在旋涂室中的晶片表面上; 将晶片加速至约1500RPM至3000RPM之间的旋转速度约30秒; 在约180℃的温度下烘烤晶片约1分钟; 将温度升高至约230℃; 在升温下烘烤晶片约1分钟; 在约500℃退火晶片约5分钟; 重复所述旋涂和加热步骤至少三次; 在约500℃至600℃之间将晶片退火约1至6小时，在干燥，干净的空气中进行退火; 并完成半导体器件。

10. 发明授权

US07042066B2 Dual-trench isolated crosspoint memory array 有权
标题翻译：双沟隔离交叉点存储器阵列
公开(公告)号：US07042066B2
公开(公告)日：2006-05-09
申请号：US11039536
申请日：2005-01-19
申请人： Sheng Teng Hsu , Wei Pan , Wei-Wei Zhuang
发明人： Sheng Teng Hsu , Wei Pan , Wei-Wei Zhuang
IPC分类号： H01L29/00
CPC分类号： G11C13/0007 , G11C2213/31 , G11C2213/77 , H01L27/101 , H01L27/24
摘要： A memory array dual-trench isolation structure and a method for forming the same have been provided. The method comprises: forming a p-doped silicon (p-Si) substrate; forming an n-doped (n+) Si layer overlying the p-Si substrate; prior to forming the n+ Si bit lines, forming a p+ Si layer overlying the n+ Si layer; forming a layer of silicon nitride overlying the p+ layer; forming a top oxide layer overlying the silicon nitride layer; performing a first selective etch of the top oxide layer, the silicon nitride layer, the p+ Si layer, and a portion of the n+ Si layer, to form n+ Si bit lines and bit line trenches between the bit lines; forming an array of metal bottom electrodes overlying a plurality of n-doped silicon (n+ Si) bit lines, with intervening p-doped (p+) Si areas; forming a plurality of word line oxide isolation structures orthogonal to and overlying the n+ Si bit lines, adjacent to the bottom electrodes, and separating the p+ Si areas; forming a plurality of top electrode word lines, orthogonal to the n+ Si bit lines, with an interposing memory resistor material overlying the bottom electrodes; and, forming oxide-filled word line trenches adjacent the word lines.
摘要翻译：已经提供了存储器阵列双沟槽隔离结构及其形成方法。该方法包括：形成p掺杂硅（p-Si）衬底; 形成覆盖p-Si衬底的n掺杂（n +）Si层; 在形成n + Si位线之前，形成覆盖n + Si层的p + Si层; 形成覆盖p +层的氮化硅层; 形成覆盖所述氮化硅层的顶部氧化物层; 执行顶部氧化物层，氮化硅层，p + Si层和n + Si层的一部分的第一选择性蚀刻，以在位线之间形成n + Si位线和位线沟槽; 形成覆盖多个n掺杂硅（n + Si）位线的金属底部电极阵列，具有中间p掺杂（p +）Si区域; 形成与所述n + Si位线正交并覆盖与所述底部电极相邻并分离所述p + Si区域的多个字线氧化物隔离结构; 形成与n + Si位线正交的多个顶部电极字线，覆盖在底部电极上的插入式存储电阻材料; 并且在字线附近形成氧化物填充的字线沟槽。

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