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    • 5. 发明授权
    • Process for making BiCMOS device having an SOI substrate
    • 制造具有SOI衬底的BiCMOS器件的工艺
    • US5279978A
    • 1994-01-18
    • US993282
    • 1992-12-18
    • Yee-Chaung SeeThomas C. MeleJohn R. Alvis
    • Yee-Chaung SeeThomas C. MeleJohn R. Alvis
    • H01L27/06H01L27/12H01L21/265
    • H01L27/1203H01L27/0623Y10S148/009
    • A BiCMOS device and process are disclosed wherein the transistors components are fabricated on an SOI substrate. A SIMOX process is used to form a buried oxide layer in a single crystal silicon substrate followed by an epitaxial deposition to form a silicon body of varying thickness overlying the buried oxide layer. MOS transistors are then formed in a thin portion of the epitaxial layer and a vertical bipolar transistor is formed in the thick portion of the epitaxial layer.In accordance with one embodiment of the invention, a single crystal semiconductor substrate is provided having a principal surface and a buried oxide layer underlying the first surface. A lightly doped epitaxial layer of a first conductivity type having a thin MOS region and a thick bipolar region overlies the principal surface. A first and second isolation regions extending from the first surface to the buried oxide layer separate and electrically insulate the bipolar region from the MOS region. An NMOS and a PMOS transistor are formed in the thin MOS region and are separated by a third isolation region extending from the first surface to the buried oxide layer. A vertical bipolar is formed in the electrically insulated bipolar region of the epitaxial layer.
    • 公开了一种BiCMOS器件和工艺,其中晶体管元件制造在SOI衬底上。 使用SIMOX工艺在单晶硅衬底中形成掩埋氧化层,接着进行外延沉积,以形成覆盖掩埋氧化物层的不同厚度的硅体。 然后在外延层的薄部分中形成MOS晶体管,并且在外延层的厚部分中形成垂直双极晶体管。 根据本发明的一个实施例,提供单晶半导体衬底,其具有在第一表面下面的主表面和掩埋氧化物层。 具有薄MOS区和厚双极区的第一导电类型的轻掺杂外延层覆盖在主表面上。 从第一表面延伸到掩埋氧化物层的第一和第二隔离区域将双极区域与MOS区域分离并电绝缘。 NMOS和PMOS晶体管形成在薄MOS区中,并由从第一表面延伸到掩埋氧化物层的第三隔离区隔开。 在外延层的电绝缘双极区域中形成垂直双极。
    • 6. 发明授权
    • BiCMOS device having an SOI substrate and process for making the same
    • 具有SOI衬底的BiCMOS器件及其制造方法
    • US5212397A
    • 1993-05-18
    • US566901
    • 1990-08-13
    • Yee-Chaung SeeThomas C. MeleJohn R. Alvis
    • Yee-Chaung SeeThomas C. MeleJohn R. Alvis
    • H01L27/06H01L27/12
    • H01L27/1203H01L27/0623Y10S148/009
    • A BiCMOS device and process are disclosed wherein the transistors components are fabricated on an SOI substrate. A SIMOX process is used to form a buried oxide layer in a single crystal silicon substrate followed by an epitaxial deposition to form a silicon body of varying thickness overlying the buried oxide layer. MOS transistors are then formed in a thin portion of the epitaxial layer and a vertical bipolar transistor is formed in the thick portion of the epitaxial layer. In accordance with one embodiment of the invention, a single crystal semiconductor substrate is provided having a principal surface and a buried oxide layer underlying the first surface. A lightly doped epitaxial layer of a first conductivity type having a thin MOS region and a thick bipolar region overlies the principal surface. A first and second isolation regions extending from the first surface to the buried oxide layer separate and electrically insulate the bipolar region from the MOS region. An NMOS and a PMOS transistor are formed in the thin MOS region and are separated by a third isolation region extending from the first surface to the buried oxide layer. A vertical bipolar is formed in the electrically insulated bipolar region of the epitaxial layer.
    • 公开了一种BiCMOS器件和工艺,其中晶体管元件制造在SOI衬底上。 使用SIMOX工艺在单晶硅衬底中形成掩埋氧化层,接着进行外延沉积,以形成覆盖掩埋氧化物层的不同厚度的硅体。 然后在外延层的薄部分中形成MOS晶体管,并且在外延层的厚部分中形成垂直双极晶体管。 根据本发明的一个实施例,提供单晶半导体衬底,其具有在第一表面下面的主表面和掩埋氧化物层。 具有薄MOS区和厚双极区的第一导电类型的轻掺杂外延层覆盖在主表面上。 从第一表面延伸到掩埋氧化物层的第一和第二隔离区域将双极区域与MOS区域分离并电绝缘。 NMOS和PMOS晶体管形成在薄MOS区中,并由从第一表面延伸到掩埋氧化物层的第三隔离区隔开。 在外延层的电绝缘双极区域中形成垂直双极。
    • 7. 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。
    • 9. 发明授权
    • Trench formation process
    • 沟槽形成过程
    • US4693781A
    • 1987-09-15
    • US878769
    • 1986-06-26
    • Howard K. H. LeungBich-Yen NguyenJohn R. AlvisJohn Schmiesing
    • Howard K. H. LeungBich-Yen NguyenJohn R. AlvisJohn Schmiesing
    • H01L21/265H01L21/3065H01L21/308H01L21/316H01L21/334H01L21/762
    • H01L29/66181H01L21/02238H01L21/26506H01L21/3065H01L21/308H01L21/31662H01L21/76232Y10S438/924Y10S438/978Y10S438/981
    • A process is disclosed for fabricating a semiconductor device which includes a trench formed at the surface of the device substrate. The surface of the device substrate is oxidized and the oxide is patterned to form an opening which exposes a portion of the underlying surface. Ions are implanted through the opening and into the surface to form a damaged surface region which is coincident with the opening and extends under the edge of the oxide. A trench is etched by reactive ion etching using the opening in the oxide as an etch mask. The substrate, including the walls of the trench and the ion implant damaged surface portion under the edge of the oxide, is thermally oxidized. The oxidation rate is enhanced by the damage and causes a thicker oxide to grow in the damaged region which forms a collar around the intersection of the trench with the surface. Upon removing the oxide, the intersection of the trench with the surface is characterized by a rounded corner caused by the enhanced oxidation in that location during the oxidation.
    • 公开了一种用于制造半导体器件的方法,该半导体器件包括在器件衬底的表面处形成的沟槽。 器件衬底的表面被氧化并且氧化物被图案化以形成露出一部分下面的表面的开口。 离子通过开口植入到表面中以形成损伤的表面区域,其与开口重合并在氧化物的边缘下方延伸。 使用氧化物中的开口作为蚀刻掩模,通过反应离子蚀刻蚀刻沟槽。 包括沟槽的壁和在氧化物边缘下方的离子注入损坏的表面部分的衬底被热氧化。 氧化速率由于损伤而增强,并且在受损区域中产生较厚的氧化物,该区域形成围绕沟槽与表面的交点的环状体。 在去除氧化物时,沟槽与表面的交点的特征在于由氧化期间在该位置增强的氧化引起的圆角。
    • 10. 发明申请
    • SEMICONDUCTOR FABRICATION PROCESS INCLUDING SILICIDE STRINGER REMOVAL PROCESSING
    • 半导体制造工艺,包括硅酮切除加工
    • US20090093108A1
    • 2009-04-09
    • 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
    • H01L21/28
    • 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。