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公开(公告)号:US20080145955A1
公开(公告)日:2008-06-19
申请号:US12012901
申请日:2008-02-06
申请人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
发明人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
IPC分类号: H01L21/02
CPC分类号: H01L29/93 , H01L27/0808
摘要: In an embodiment of the present invention is provided a method of manufacturing a varactor, comprising providing a substrate; positioning a bottom electrode on a surface of the substrate; placing a tunable dielectric material adjacent to and extending over the bottom electrode forming a step and in contact with a top electrode; placing an interconnect layer in contact with the bottom electrode, the tunable dielectric and the top electrode.
摘要翻译: 在本发明的一个实施例中,提供一种制造变容二极管的方法,包括提供衬底; 将底部电极定位在所述基板的表面上; 将可调电介质材料放置在底电极附近并延伸到底电极上,形成台阶并与顶电极接触; 将互连层放置成与底部电极,可调电介质和顶部电极接触。
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公开(公告)号:US07807477B2
公开(公告)日:2010-10-05
申请号:US12012901
申请日:2008-02-06
申请人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
发明人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
IPC分类号: H01L21/00
CPC分类号: H01L29/93 , H01L27/0808
摘要: In an embodiment of the present invention is provided a method of manufacturing a varactor, comprising providing a substrate; positioning a bottom electrode on a surface of the substrate; placing a tunable dielectric material adjacent to and extending over the bottom electrode forming a step and in contact with a top electrode; placing an interconnect layer in contact with the bottom electrode, the tunable dielectric and the top electrode.
摘要翻译: 在本发明的一个实施例中,提供一种制造变容二极管的方法,包括提供衬底; 将底部电极定位在所述基板的表面上; 将可调电介质材料放置在底电极附近并延伸到底电极上,形成台阶并与顶电极接触; 将互连层放置成与底部电极,可调电介质和顶部电极接触。
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公开(公告)号:US20080297973A1
公开(公告)日:2008-12-04
申请号:US12217239
申请日:2008-07-02
申请人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
发明人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
IPC分类号: H01G7/00
CPC分类号: H01L29/93 , H01L27/0808
摘要: In an embodiment of the present invention is provided a varactor comprising a substrate, a bottom electrode positioned on a surface of the substrate, a tunable dielectric material positioned adjacent to and extending over the bottom electrode forming a step and in contact with a top electrode, and an interconnect layer in contact with the bottom electrode, the tunable dielectric and the top electrode.
摘要翻译: 在本发明的一个实施例中提供了一种变容二极管,其包括基底,位于基底表面的底部电极,位于邻近并延伸到底部电极上并在其上延伸的可调电介质材料,形成台阶并与顶部电极接触, 以及与底部电极,可调谐电介质和顶部电极接触的互连层。
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公开(公告)号:US07808765B2
公开(公告)日:2010-10-05
申请号:US12217239
申请日:2008-07-02
申请人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
发明人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolaas DuToit
IPC分类号: H01G5/00
CPC分类号: H01L29/93 , H01L27/0808
摘要: In an embodiment of the present invention is provided a varactor comprising a substrate, a bottom electrode positioned on a surface of the substrate, a tunable dielectric material positioned adjacent to and extending over the bottom electrode forming a step and in contact with a top electrode, and an interconnect layer in contact with the bottom electrode, the tunable dielectric and the top electrode.
摘要翻译: 在本发明的一个实施例中提供了一种变容二极管,其包括基底,位于基底表面的底部电极,位于邻近并延伸到底部电极上并在其上延伸的可调电介质材料,形成台阶并与顶部电极接触, 以及与底部电极,可调谐电介质和顶部电极接触的互连层。
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公开(公告)号:US08530948B2
公开(公告)日:2013-09-10
申请号:US12313491
申请日:2008-11-20
申请人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolass DuToit
发明人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolass DuToit
IPC分类号: H01L29/93
CPC分类号: H01L29/93 , H01L27/0808
摘要: In an embodiment of the present invention is provided a varactor comprising a substrate, a plurality of bottom electrodes positioned on a surface of the substrate separated to form a gap therein, a tunable dielectric material positioned on the surface of the substrate and within the gap, the tunable dielectric at least partially overlaying the plurality of electrodes, and a top electrode in contact with the tunable dielectric.
摘要翻译: 在本发明的一个实施例中,提供了一种变容二极管,包括衬底,多个底部电极,位于衬底的表面上,以分离以形成间隙;可调电介质材料,位于衬底的表面上且在间隙内, 所述可调谐电介质至少部分地覆盖所述多个电极,以及与所述可调谐电介质接触的顶部电极。
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公开(公告)号:US20090091000A1
公开(公告)日:2009-04-09
申请号:US12313491
申请日:2008-11-20
申请人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolass DuToit
发明人: Xubai Zhang , Louise C. Sengupta , Jason Sun , Nicolass DuToit
IPC分类号: H01L29/93
CPC分类号: H01L29/93 , H01L27/0808
摘要: In an embodiment of the present invention is provided a varactor comprising a substrate, a plurality of bottom electrodes positioned on a surface of the substrate separated to form a gap therein, a tunable dielectric material positioned on the surface of the substrate and within the gap, the tunable dielectric at least partially overlaying the plurality of electrodes, and a top electrode in contact with the tunable dielectric.
摘要翻译: 在本发明的一个实施例中,提供了一种变容二极管,包括衬底,多个底部电极,位于衬底的表面上,以分离以形成间隙;可调电介质材料,位于衬底的表面上且在间隙内, 所述可调谐电介质至少部分地覆盖所述多个电极,以及与所述可调谐电介质接触的顶部电极。
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公开(公告)号:US06377217B1
公开(公告)日:2002-04-23
申请号:US09660719
申请日:2000-09-13
申请人: Yongfei Zhu , Louise C. Sengupta , Andrey Kozyrev , Xubai Zhang
发明人: Yongfei Zhu , Louise C. Sengupta , Andrey Kozyrev , Xubai Zhang
IPC分类号: H01Q138
CPC分类号: H01Q3/36 , H01P1/181 , H01Q21/0075 , H01Q21/065
摘要: A phased array antenna includes a plurality of radiating elements, a feed line assembly, a ground plane positioned between the plurality of radiating elements and the feed line assembly, with the ground plane having a plurality of openings positioned between the plurality of radiating elements and the feed line assembly, and a plurality of voltage tunable dielectric phase shifters coupled to the feed line assembly.
摘要翻译: 相控阵天线包括多个辐射元件,馈线组件,位于多个辐射元件和馈线组件之间的接地平面,其中接地平面具有位于多个辐射元件之间的多个开口和 馈电线组件以及耦合到馈电线组件的多个电压可调电介质移相器。
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8.
公开(公告)号:US07056468B2
公开(公告)日:2006-06-06
申请号:US10301981
申请日:2002-11-22
申请人: Luna H. Chiu , Xubai Zhang , Louise C. Sengupta
发明人: Luna H. Chiu , Xubai Zhang , Louise C. Sengupta
IPC分类号: C04B33/32
CPC分类号: H01G4/1227 , B32B2311/04 , C04B35/04 , C04B35/053 , C04B35/16 , C04B35/20 , C04B35/22 , C04B35/443 , C04B35/462 , C04B35/465 , C04B35/468 , C04B35/47 , C04B35/495 , C04B35/6261 , C04B35/62625 , C04B35/63 , C04B35/632 , C04B35/634 , C04B41/5041 , C04B41/87 , C04B2235/3201 , C04B2235/3205 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3236 , C04B2235/3251 , C04B2235/3256 , C04B2235/3418 , C04B2235/3445 , C04B2235/3454 , C04B2235/6025 , C04B2235/786 , C04B2235/80 , C04B2237/34 , C04B2237/343 , C04B2237/346 , C04B2237/348 , C04B2237/408 , H01G4/1209 , H01G7/06 , H01P1/181 , H01Q3/44 , Y10T428/264 , Y10T428/265 , Y10T428/2973
摘要: The production of low-loss, tunable composite ceramic materials with improved breakdown strengths is disclosed. The composite materials comprise ferroelectric perovskites such as barium strontium titanate or other ferroelectric perovskites combined with other phases such as low-loss silicate materials and/or other low-loss oxides. The composite materials are produced in sheet or tape form by methods such as tape casting. The composite tapes exhibit favorable tunability, low loss and tailorable dielectric properties, and can be used in various microwave devices.
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公开(公告)号:US06864840B2
公开(公告)日:2005-03-08
申请号:US10060560
申请日:2002-01-30
申请人: Yongfei Zhu , Louise C. Sengupta , Andrey Kozyrev , Xubai Zhang
发明人: Yongfei Zhu , Louise C. Sengupta , Andrey Kozyrev , Xubai Zhang
CPC分类号: H01Q3/36 , H01P1/181 , H01Q21/0075 , H01Q21/065
摘要: A phased array antenna includes a plurality of radiating elements, a feed line assembly, a ground plane positioned between the plurality of radiating elements and the feed line assembly, with the ground plane having a plurality of openings positioned between the plurality of radiating elements and the feed line assembly, and a plurality of voltage tunable dielectric phase shifters coupled to the feed line assembly.
摘要翻译: 相控阵天线包括多个辐射元件,馈线组件,位于多个辐射元件和馈线组件之间的接地平面,其中接地平面具有位于多个辐射元件之间的多个开口和 馈电线组件以及耦合到馈电线组件的多个电压可调电介质移相器。
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公开(公告)号:US06774077B2
公开(公告)日:2004-08-10
申请号:US09768690
申请日:2001-01-24
申请人: Louise C. Sengupta , Xubai Zhang , Luna H. Chiu
发明人: Louise C. Sengupta , Xubai Zhang , Luna H. Chiu
IPC分类号: C04B35468
CPC分类号: C04B35/495 , C04B35/462
摘要: Electronically tunable dielectric materials having favorable properties are disclosed. The electronically tunable materials include an electronically tunable dielectric phase such as barium strontium titanate in combination with at least two additional metal oxide phases. The additional metal oxide phases may include, for example, oxides of Mg, Si, Ca, Zr, Ti and Al. The electronically tunable materials may be provided in bulk, thin film and thick film forms for use in devices such as phased array antennas, tunable filters and the like. The materials are useful in many applications, including the area of radio frequency engineering and design.
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