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    • 6. 发明授权
    • Method of forming a semiconductor isolation trench
    • 形成半导体隔离沟槽的方法
    • US07687370B2
    • 2010-03-30
    • US11342102
    • 2006-01-27
    • Toni D. Van GompelJohn J. HackenbergRode R. MoraSuresh Venkatesan
    • Toni D. Van GompelJohn J. HackenbergRode R. MoraSuresh Venkatesan
    • H01L21/76H01L21/311H01L21/302
    • H01L21/76224Y10S438/911
    • A method for forming a semiconductor isolation trench includes forming a pad oxide layer over a substrate and forming a barrier layer over the substrate. A masking layer is formed over the barrier layer and is patterned to form at least one opening in the masking layer. At least a part of the barrier layer and at least a part of the pad oxide layer are etched through the at least one opening resulting in a trench pad oxide layer. Etching of the trench pad oxide layer stops substantially at a top surface of the substrate within the isolation trench. An oxide layer is grown by diffusion on at least the top surface of the substrate corresponding to the at least one isolation trench. The method further includes etching the oxide layer and at least a portion of the substrate to form at least one isolation trench opening.
    • 用于形成半导体隔离沟槽的方法包括在衬底上形成衬垫氧化物层,并在衬底上形成阻挡层。 掩模层形成在阻挡层之上,并被图案化以在掩模层中形成至少一个开口。 阻挡层的至少一部分和衬垫氧化物层的至少一部分被蚀刻穿过至少一个开口,导致沟槽衬垫氧化物层。 沟槽衬垫氧化物层的蚀刻基本上在隔离沟槽内的衬底顶表面上停止。 氧化物层通过扩散至少对应于至少一个隔离沟槽的衬底的顶表面生长。 所述方法还包括蚀刻所述氧化物层和所述衬底的至少一部分以形成至少一个隔离沟槽开口。
    • 7. 发明授权
    • Semiconductor structure pattern formation
    • 半导体结构图形形成
    • US07829447B2
    • 2010-11-09
    • US11419304
    • 2006-05-19
    • Leo MathewRode R. MoraTab A. StephensTien Ying Luo
    • Leo MathewRode R. MoraTab A. StephensTien Ying Luo
    • H01L21/22H01L21/38
    • H01L29/785H01L29/66795Y10S438/942
    • Forming structures such as fins in a semiconductor layer according to a pattern formed by oxidizing a sidewall of a layer of oxidizable material. In one embodiment, source/drain pattern structures and a fin pattern structures are patterned in the oxidizable layer. The fin pattern structure is then masked from an oxidation process that grows oxide on the sidewalls of the channel pattern structure and the top surface of the source/drain pattern structures. The remaining oxidizable material of the channel pattern structure is subsequently removed leaving a hole between two portions of the oxide layer. These two portions are used in one embodiment as a mask for patterning the semiconductor layer to form two fins. This patterning also leaves the source/drain structures connected to the fins.
    • 根据通过氧化可氧化材料层的侧壁形成的图案在半导体层中形成诸如翅片的结构。 在一个实施例中,在可氧化层中图案化源极/漏极图案结构和鳍状图案结构。 然后从在沟道图案结构的侧壁和源极/漏极图案结构的顶表面上生长氧化物的氧化过程掩蔽鳍状图案结构。 随后去除沟道图案结构的剩余可氧化材料,留下氧化物层的两个部分之间的孔。 这两个部分在一个实施例中用作用于图案化半导体层以形成两个散热片的掩模。 该图案化还使得源极/漏极结构连接到鳍片。
    • 9. 发明授权
    • Semiconductor fabrication process including silicide stringer removal processing
    • 半导体制造工艺包括硅化物棱镜去除处理
    • US07998822B2
    • 2011-08-16
    • US12244413
    • 2008-10-02
    • Dharmesh JawaraniJohn R. AlvisMichael G. HarrisonLeo MathewJohn E. MooreRode R. Mora
    • Dharmesh JawaraniJohn R. AlvisMichael G. HarrisonLeo MathewJohn E. MooreRode R. Mora
    • H01L21/336
    • H01L21/28518H01L21/2855
    • A semiconductor fabrication process includes forming a gate electrode (112) overlying a gate dielectric (114) overlying a semiconductor substrate (104) of a wafer (101) and a liner dielectric layer (116) including vertical portions (118) adjacent sidewalls of the gate electrode and horizontal portions (117) overlying an upper surface of the semiconductor substrate (104). A spacer (108) is formed adjacent a vertical portion (118) and overlying a horizontal portion (117) of the liner dielectric layer (116). After forming the spacer (108), exposed portions of the liner dielectric layer (116) are removed to form a liner dielectric structure (126) covered by the extension spacer (108). The extension spacer (108) is then etched back to expose or uncover extremities of the liner dielectric structure (126). Prior to etching back the spacer (108), a metal (130) may be sputtered deposited over the wafer (101) preparatory to forming a silicide (134). After the etch back the wafer (101) may be dipped in piranha solution and cleaned with an RF sputter (140) of argon.
    • 半导体制造工艺包括形成覆盖在晶片(101)的半导体衬底(104)上的栅极电介质(114)上的栅电极(112)和包括垂直部分(118)的衬垫电介质层(116) 栅电极和覆盖在半导体衬底(104)的上表面上的水平部分(117)。 邻近垂直部分(118)并且覆盖衬里介电层(116)的水平部分(117)形成间隔物(108)。 在形成间隔物(108)之后,去除衬里电介质层(116)的暴露部分以形成被延伸间隔物(108)覆盖的衬里电介质结构(126)。 然后将延伸垫片(108)回蚀刻以露出或揭开衬垫介质结构(126)的四肢。 在蚀刻回间隔物(108)之前,金属(130)可以溅射沉积在晶片(101)上,准备形成硅化物(134)。 在蚀刻之后,晶片(101)可以浸入食人鱼溶液中并用氩气的RF溅射(140)清洁。
    • 10. 发明授权
    • Split gate memory cell method
    • 分闸存储单元法
    • US07579243B2
    • 2009-08-25
    • US11535345
    • 2006-09-26
    • Sung-Taeg KangRode R. MoraRobert F. Steimle
    • Sung-Taeg KangRode R. MoraRobert F. Steimle
    • H01L21/336H01L21/3205
    • H01L21/28132B82Y10/00H01L21/28273H01L21/823425H01L21/823468H01L29/66484H01L29/665H01L29/66825H01L29/7831H01L29/7833H01L29/7881
    • Split gate memory cell formation includes forming a sacrificial layer over a substrate. The sacrificial layer is patterned to form a sacrificial structure with a first sidewall and a second sidewall. A layer of nanocrystals is formed over the substrate. A first layer of polysilicon is deposited over the substrate. An anisotropic etch on the first polysilicon layer forms a first polysilicon sidewall spacer adjacent the first sidewall and a second polysilicon sidewall spacer adjacent the second sidewall. Removal of the sacrificial structure leaves the first sidewall spacer and the second sidewall spacer. A second layer of polysilicon is deposited over the first and second sidewall spacers and the substrate. An anisotropic etch on the second layer of polysilicon forms a third sidewall spacer adjacent to a first side of the first sidewall spacer and a fourth sidewall spacer adjacent to a first side of the second sidewall spacer.
    • 分离栅极存储单元形成包括在衬底上形成牺牲层。 牺牲层被图案化以形成具有第一侧壁和第二侧壁的牺牲结构。 在衬底上形成一层纳米晶体。 在衬底上沉积第一层多晶硅。 在第一多晶硅层上的各向异性蚀刻形成邻近第一侧壁的第一多晶硅侧壁间隔物和邻近第二侧壁的第二多晶硅侧壁间隔物。 去除牺牲结构离开第一侧壁间隔物和第二侧壁间隔物。 第二层多晶硅沉积在第一和第二侧壁间隔物和基底上。 在第二多晶硅层上的各向异性蚀刻形成与第一侧壁间隔物的第一侧相邻的第三侧壁间隔物和邻近第二侧壁间隔物的第一侧的第四侧壁间隔物。