-
公开(公告)号：US06594172B2
公开(公告)日：2003-07-15
申请号：US09988960
申请日：2001-11-19
申请人： Todd Abbott , Jigish D. Trivedi , Mike Violette , Chuck Dennison
发明人： Todd Abbott , Jigish D. Trivedi , Mike Violette , Chuck Dennison
IPC分类号： H01L2900
CPC分类号： H01L21/76897 , H01L21/76889 , H01L21/76895 , H01L27/105 , H01L27/1052 , H01L27/10894 , H01L27/11 , H01L27/1104 , H01L27/1116
摘要： The invention includes a method of fabricating a circuit in a manner to place certain structures within a predefined distance of one another. Electrical connections are formed between certain structures of silicon, by annealing a conductive material to cause silicon out-diffusing to form local interconnects. The silicon out-diffusion can be facilitated without a masking step thereby simplifying as well as speeding up the fabrication process. The invention also includes a local interconnect thus formed.
-
公开(公告)号：US06535413B1
公开(公告)日：2003-03-18
申请号：US09652070
申请日：2000-08-31
申请人： Todd Abbott , Jigish D. Trivedi , Mike Violette , Chuck Dennison
发明人： Todd Abbott , Jigish D. Trivedi , Mike Violette , Chuck Dennison
IPC分类号： H01L2334
CPC分类号： H01L21/76897 , H01L21/76889 , H01L21/76895 , H01L27/105 , H01L27/1052 , H01L27/10894 , H01L27/11 , H01L27/1104 , H01L27/1116
摘要： The invention includes a method of fabricating a circuit in a manner to place certain structures within a predefined distance of one another. Electrical connections are formed between certain structures of silicon, by annealing a conductive material to cause silicon out-diffusing to form local interconnects. The silicon out-diffusion can be facilitated without a masking step thereby simplifying as well as speeding up the fabrication process. The invention also includes a local interconnect thus formed.
-
公开(公告)号：US08035160B2
公开(公告)日：2011-10-11
申请号：US12627869
申请日：2009-11-30
IPC分类号： H01L29/66
CPC分类号： H01L29/66621 , H01L27/10876
摘要： Semiconductor memory devices having recessed access devices are disclosed. In some embodiments, a method of forming the recessed access device includes forming a device recess in a substrate material that extends to a first depth in the substrate that includes a gate oxide layer in the recess. The device recess may be extended to a second depth that is greater that the first depth to form an extended portion of the device recess. A field oxide layer may be provided within an interior of the device recess that extends inwardly into the interior of the device recess and into the substrate. Active regions may be formed in the substrate that abut the field oxide layer, and a gate material may be deposited into the device recess.
摘要翻译： 公开了具有凹入式存取装置的半导体存储器件。 在一些实施例中，形成凹陷进入装置的方法包括在衬底材料中形成器件凹部，该衬底材料延伸到衬底中的第一深度，该第一深度包括凹陷中的栅极氧化物层。 装置凹部可以延伸到大于第一深度的第二深度，以形成装置凹部的延伸部分。 场氧化物层可以设置在器件凹部的内部，其内部延伸到器件凹部的内部并进入衬底。 活性区域可以形成在衬底中，其邻接场氧化物层，并且栅极材料可以沉积到器件凹部中。
-
公开(公告)号：US20100072532A1
公开(公告)日：2010-03-25
申请号：US12627869
申请日：2009-11-30
IPC分类号： H01L27/108 , H01L27/105
CPC分类号： H01L29/66621 , H01L27/10876
摘要： Semiconductor memory devices having recessed access devices are disclosed. In some embodiments, a method of forming the recessed access device includes forming a device recess in a substrate material that extends to a first depth in the substrate that includes a gate oxide layer in the recess. The device recess may be extended to a second depth that is greater that the first depth to form an extended portion of the device recess. A field oxide layer may be provided within an interior of the device recess that extends inwardly into the interior of the device recess and into the substrate. Active regions may be formed in the substrate that abut the field oxide layer, and a gate material may be deposited into the device recess.
摘要翻译： 公开了具有凹入式存取装置的半导体存储器件。 在一些实施例中，形成凹陷进入装置的方法包括在衬底材料中形成器件凹部，该衬底材料延伸到衬底中的第一深度，该第一深度包括凹陷中的栅极氧化物层。 装置凹部可以延伸到大于第一深度的第二深度，以形成装置凹部的延伸部分。 场氧化物层可以设置在器件凹部的内部，其内部延伸到器件凹部的内部并进入衬底。 活性区域可以形成在衬底中，其邻接场氧化物层，并且栅极材料可以沉积到器件凹部中。
-
公开(公告)号：US07645671B2
公开(公告)日：2010-01-12
申请号：US11598449
申请日：2006-11-13
IPC分类号： H01L21/336
CPC分类号： H01L29/66621 , H01L27/10876
摘要： Semiconductor memory devices having recessed access devices are disclosed. In some embodiments, a method of forming the recessed access device includes forming a device recess in a substrate material that extends to a first depth in the substrate that includes a gate oxide layer in the recess. The device recess may be extended to a second depth that is greater that the first depth to form an extended portion of the device recess. A field oxide layer may be provided within an interior of the device recess that extends inwardly into the interior of the device recess and into the substrate. Active regions may be formed in the substrate that abut the field oxide layer, and a gate material may be deposited into the device recess.
摘要翻译： 公开了具有凹入式存取装置的半导体存储器件。 在一些实施例中，形成凹陷进入装置的方法包括在衬底材料中形成器件凹部，该衬底材料延伸到衬底中的第一深度，该第一深度包括凹陷中的栅极氧化物层。 装置凹部可以延伸到大于第一深度的第二深度，以形成装置凹部的延伸部分。 场氧化物层可以设置在器件凹部的内部，其内部延伸到器件凹部的内部并进入衬底。 活性区域可以形成在衬底中，其邻接场氧化物层，并且栅极材料可以沉积到器件凹部中。
-
公开(公告)号：US07622769B2
公开(公告)日：2009-11-24
申请号：US11497665
申请日：2006-08-01
IPC分类号： H01L29/76 , H01L29/94 , H01L31/062 , H01L31/113 , H01L31/119
CPC分类号： H01L21/76224
摘要： A method of depositing dielectric material into sub-micron spaces and resultant structures is provided. After a trench is etched in the surface of a wafer, an oxygen barrier is deposited into the trench. An expandable, oxidizable liner, preferably amorphous silicon, is then deposited. The trench is then filled with a spin-on dielectric (SOD) material. A densification process is then applied, whereby the SOD material contracts and the oxidizable liner expands. Preferably, the temperature is ramped up while oxidizing during at least part of the densification process. The resulting trench has a negligible vertical wet etch rate gradient and a negligible recess at the top of the trench.
摘要翻译： 提供了将电介质材料沉积到亚微米空间和结构中的方法。 在晶片的表面中蚀刻沟槽之后，将氧势垒沉积到沟槽中。 然后沉积可膨胀的可氧化衬垫，优选非晶硅。 然后用旋涂电介质（SOD）材料填充沟槽。 然后施加致密化过程，由此SOD材料收缩并且可氧化衬里膨胀。 优选地，在致密化过程的至少部分期间，温度升高而氧化。 所形成的沟槽具有可忽略的垂直湿蚀刻速率梯度和在沟槽顶部的可忽略的凹陷。
-
公开(公告)号：US20090190394A1
公开(公告)日：2009-07-30
申请号：US12421950
申请日：2009-04-10
申请人： Suraj Mathew , Jigish D. Trivedi
发明人： Suraj Mathew , Jigish D. Trivedi
IPC分类号： G11C11/24 , H01L21/8242
CPC分类号： G11C7/00 , H01L21/84 , H01L27/108 , H01L27/10802 , H01L27/10882 , H01L27/1203 , H01L29/7841
摘要： A method of forming capacitorless DRAM over localized silicon-on-insulator comprises the following steps: A silicon substrate is provided, and an array of silicon studs is defined within the silicon substrate. An insulator layer is defined atop at least a portion of the silicon substrate, and between the silicon studs. A silicon-over-insulator layer is defined surrounding the silicon studs atop the insulator layer, and a capacitorless DRAM is formed within and above the silicon-over-insulator layer.
摘要翻译： 在局部绝缘体上形成无电容器DRAM的方法包括以下步骤：提供硅衬底，并且硅衬底阵列限定在硅衬底内。 绝缘体层限定在硅衬底的至少一部分之上，并且在硅柱之间。 围绕绝缘体层上方的硅柱的绝缘体层被限定，并且在绝缘体上硅层内部和上方形成无电容的DRAM。
-
8.发明授权Methods of forming recessed access devices associated with semiconductor constructions 有权形成与半导体结构相关联的凹陷接入设备的方法公开(公告)号：US07384849B2
公开(公告)日：2008-06-10
申请号：US11090529
申请日：2005-03-25
IPC分类号： H01L21/336
CPC分类号： H01L27/10876 , H01L27/10823
摘要： The invention includes methods of forming recessed access devices. A substrate is provided to have recessed access device trenches therein. A pair of the recessed access device trenches are adjacent one another. Electrically conductive material is formed within the recessed access device trenches, and source/drain regions are formed proximate the electrically conductive material. The electrically conductive material and source/drain regions together are incorporated into a pair of adjacent recessed access devices. After the recessed access device trenches are formed within the substrate, an isolation region trench is formed between the adjacent recessed access devices and filled with electrically insulative material to form a trenched isolation region.
摘要翻译： 本发明包括形成凹入进入装置的方法。 提供基板以在其中具有凹入的接入装置沟槽。 一对凹进的接入设备沟槽彼此相邻。 导电材料形成在凹进的存取装置沟槽内，源极/漏极区域靠近导电材料形成。 导电材料和源极/漏极区域一起被并入一对相邻的凹进入器件中。 在凹陷的访问设备沟槽形成在衬底内之后，在相邻的凹进的访问设备之间形成隔离区沟槽，并且填充有电绝缘材料以形成沟槽隔离区域。
-
公开(公告)号：US20080113478A1
公开(公告)日：2008-05-15
申请号：US11598449
申请日：2006-11-13
IPC分类号： H01L21/8242
CPC分类号： H01L29/66621 , H01L27/10876
摘要： Semiconductor memory devices having recessed access devices are disclosed. In some embodiments, a method of forming the recessed access device includes forming a device recess in a substrate material that extends to a first depth in the substrate that includes a gate oxide layer in the recess. The device recess may be extended to a second depth that is greater that the first depth to form an extended portion of the device recess. A field oxide layer may be provided within an interior of the device recess that extends inwardly into the interior of the device recess and into the substrate. Active regions may be formed in the substrate that abut the field oxide layer, and a gate material may be deposited into the device recess.
摘要翻译： 公开了具有凹入式存取装置的半导体存储器件。 在一些实施例中，形成凹陷进入装置的方法包括在衬底材料中形成器件凹部，该衬底材料延伸到衬底中的第一深度，该第一深度包括凹陷中的栅极氧化物层。 装置凹部可以延伸到大于第一深度的第二深度，以形成装置凹部的延伸部分。 场氧化物层可以设置在器件凹部的内部，其内部延伸到器件凹部的内部并进入衬底。 活性区域可以形成在衬底中，其邻接场氧化物层，并且栅极材料可以沉积到器件凹部中。
-
公开(公告)号：US07176096B1
公开(公告)日：2007-02-13
申请号：US10631921
申请日：2003-07-31
申请人： Jigish D. Trivedi
发明人： Jigish D. Trivedi
IPC分类号： H01L21/336 , H01L21/3205 , H01L21/44
CPC分类号： H01L23/485 , H01L21/76895 , H01L21/823475 , H01L2924/0002 , H01L2924/00
摘要： A method of forming a local interconnect for a semiconductor integrated circuit, the local interconnect comprising a refractory silicide contact having a substantially small sheet resistance formed at an exhumed surface of a gate stack, wherein the local interconnect electrically couples a gate electrode of the gate stack with an active region of the semiconductor substrate. The method of forming the local interconnect comprises depositing a gate oxide layer over the substrate, a first polysilicon layer over the gate oxide layer, a laterally conducting layer over the polysilicon layer, a second polysilicon layer over the laterally conducting layer, and an insulating layer over the second polysilicon layer. The intermediate structure is then etched so as to form a plurality of gate stacks. A surface of the second polysilicon layer of a gate stack is exhumed so as to allow subsequent formation of the refractory silicide contact at the exhumed surface. A plurality of spacers are formed along the vertical surfaces of the gate stacks and the substrate is selectively doped so as to form active regions within the substrate. A layer of titanium is deposited over the substrate and a silicon source and/or hardmask material layer is deposited over the titanium layer so as to extend between the gate electrode and the active region of the silicon. The mask layer is then patterned in an etching process so that the mask layer defines the extent of the local interconnect structure. The intermediate structure is then exposed to a high temperature N2/NH3 ambient which induces the formation of refractory silicide contacts at the exhumed surface of the polysilicon layer of the gate stack and at the active region of the substrate as well as the formation of refractory nitride (TiN) at the exposed portions of the titanium layer. A selective wet etch follows which removes the exposed unreacted titanium and exposed titanium nitride and leaves behind the local interconnect.
-
-
-
-
-
-
-
-
-
搜索结果
100 条记录 (耗时 0.039 秒)
