公开(公告)号：US20050026453A1

公开(公告)日：2005-02-03

申请号：US10630969

申请日：2003-07-31

申请人： David O'Meara ,  Cory Wajda ,  Anthony Dip ,  Michael Toeller ,  Toshihara Furukawa ,  Kristen Scheer ,  Alessandro Callegari ,  Fred Buehrer ,  Sufi Zafar ,  Evgeni Gousev ,  Anthony Chou ,  Paul Higgins

发明人： David O'Meara ,  Cory Wajda ,  Anthony Dip ,  Michael Toeller ,  Toshihara Furukawa ,  Kristen Scheer ,  Alessandro Callegari ,  Fred Buehrer ,  Sufi Zafar ,  Evgeni Gousev ,  Anthony Chou ,  Paul Higgins

IPC分类号： H01L21/28 ,  H01L21/314 ,  H01L21/316 ,  H01L29/51 ,  H01L21/31

CPC分类号： H01L21/28194 ,  H01L21/02238 ,  H01L21/02255 ,  H01L21/28167 ,  H01L21/28202 ,  H01L21/28211 ,  H01L21/3144 ,  H01L21/31604 ,  H01L21/31616 ,  H01L21/31637 ,  H01L21/31641 ,  H01L21/31645 ,  H01L21/31662 ,  H01L29/513 ,  H01L29/517 ,  H01L29/518

摘要： Ultra-thin oxide layers are formed utilizing low pressure processing to achieve self-limiting oxidation of substrates and provide ultra-thin oxide. The substrates to be processed can contain an initial dielectric layer such as an oxide layer, an oxynitride layer, a nitride layer, a high-k layer, or alternatively can lack an initial dielectric layer. The processing can be carried out using a batch type process chamber or, alternatively, using a single-wafer process chamber. One embodiment of the invention provides self-limiting oxidation of Si-substrates that results in SiO2 layers with a thickness of about 15 A, where the thickness of the SiO2 layers varies less than about 1 A over the substrates.

摘要翻译： 使用低压处理形成超薄氧化层，以实现衬底的自限制氧化并提供超薄氧化物。 待处理的基板可以包含初始介电层，例如氧化物层，氧氮化物层，氮化物层，高k层，或者可以缺少初始介电层。 处理可以使用间歇式处理室进行，或者使用单晶圆处理室进行。 本发明的一个实施例提供Si衬底的自限制氧化，其导致厚度为约15A的SiO 2层，其中SiO 2层的厚度在衬底上变化小于约1A。

公开(公告)号：US09417208B2

公开(公告)日：2016-08-16

申请号：US13571389

申请日：2012-08-10

申请人： Donald Dorman ,  Tak Ning ,  Sufi Zafar

发明人： Donald Dorman ,  Tak Ning ,  Sufi Zafar

IPC分类号： G01N27/414 ,  G01N27/333 ,  G01N27/327

CPC分类号： G01N27/4145 ,  G01N27/3271 ,  G01N27/3335 ,  G01N27/414

摘要： A method for operating a sensor for biomolecules or charged ions, the sensor comprising a first field effect transistor (FET) and a second FET, wherein the first FET and the second FET comprise a shared node includes placing an electrolyte containing the biomolecules or charged ions on a sensing surface of the sensor, the electrolyte comprising a gate of the second FET; applying an inversion voltage to a gate of the first FET; making a first electrical connection to an unshared node of the first FET; making a second electrical connection to unshared node of the second FET; determining a change in a drain current flowing between the unshared node of the first FET and the unshared node of the second FET; and determining an amount of biomolecules or charged ions contained in the electrolyte based on the determined change in the drain current.

摘要翻译： 一种用于操作用于生物分子或带电离子的传感器的方法，所述传感器包括第一场效应晶体管（FET）和第二FET，其中所述第一FET和所述第二FET包括共享节点，包括放置含有所述生物分子或带电离子的电解质 在所述传感器的感测表面上，所述电解质包括所述第二FET的栅极; 对第一FET的栅极施加反转电压; 与第一FET的非共享节点进行第一电连接; 与第二FET的非共享节点进行第二电连接; 确定在所述第一FET的非共享节点和所述第二FET的非共享节点之间流动的漏极电流的变化; 以及基于确定的漏极电流的变化来确定电解质中包含的生物分子或带电离子的量。

公开(公告)号：US09040929B2

公开(公告)日：2015-05-26

申请号：US13561671

申请日：2012-07-30

申请人： Jin Cai ,  Tak H. Ning ,  Jeng-Bang Yau ,  Sufi Zafar

发明人： Jin Cai ,  Tak H. Ning ,  Jeng-Bang Yau ,  Sufi Zafar

IPC分类号： G01T1/24 ,  H01L31/115 ,  H01L27/146

CPC分类号： G01T1/247 ,  G01N27/403 ,  G01T3/08 ,  H01L27/14 ,  H01L27/14681 ,  H01L31/022408 ,  H01L31/035272 ,  H01L31/1105 ,  H01L31/115 ,  H01L31/118

摘要： A sensor includes a collector, an emitter and a base-region barrier formed as an inverted bipolar junction transistor having a base substrate forming a base electrode to activate the inverted bipolar junction transistor. A level surface is formed by the collector, the emitter and the base-region barrier opposite the base substrate such that when the level surface is exposed to charge, the charge is measured during operation of the bipolar junction transistor.

摘要翻译： 传感器包括集电极，发射极和形成为反相双极结型晶体管的基极区势垒，其具有形成基极的基极以激活反相双极结型晶体管。 由集电极，发射极和基极区域与基底基板相对的方式形成电平表面，使得当电平表面暴露于电荷时，在双极结晶体管的操作期间测量电荷。

公开(公告)号：US08980667B2

公开(公告)日：2015-03-17

申请号：US13566324

申请日：2012-08-03

申请人： Jin Cai ,  Tak H. Ning ,  Jeng-Bang Yau ,  Sufi Zafar

发明人： Jin Cai ,  Tak H. Ning ,  Jeng-Bang Yau ,  Sufi Zafar

IPC分类号： H01L31/101 ,  H01L31/11 ,  H01L27/14

CPC分类号： G01T1/247 ,  G01N27/403 ,  G01T3/08 ,  H01L27/14 ,  H01L27/14681 ,  H01L31/022408 ,  H01L31/035272 ,  H01L31/1105 ,  H01L31/115 ,  H01L31/118

摘要： A method for forming a sensor includes forming a base-region barrier in contact with a base substrate. The base-region barrier includes a monocrystalline semiconductor having a same dopant conductivity as the base substrate. An emitter and a collector are formed in contact with and on opposite sides of the base-region barrier to form a bipolar junction transistor. The collector, the emitter and the base-region barrier are planarized to form a level surface opposite the base substrate such that when the level surface is exposed to charge, the charge is measured during operation of the bipolar junction transistor.

摘要翻译： 形成传感器的方法包括形成与基底基板接触的基底区域屏障。 基区域屏障包括具有与基底衬底相同的掺杂剂导电性的单晶半导体。 发射极和集电极形成为与基极区势垒接触并在相对侧上形成双极结型晶体管。 集电极，发射极和基极区势垒被平坦化以形成与基底衬底相对的电平表面，使得当电平表面暴露于电荷时，在双极结型晶体管的操作期间测量电荷。

公开(公告)号：US20140030838A1

公开(公告)日：2014-01-30

申请号：US13566324

申请日：2012-08-03

申请人： Jin Cai ,  Tak H Ning ,  Jeng-Bang Yau ,  Sufi Zafar

发明人： Jin Cai ,  Tak H Ning ,  Jeng-Bang Yau ,  Sufi Zafar

IPC分类号： H01L21/02

CPC分类号： G01T1/247 ,  G01N27/403 ,  G01T3/08 ,  H01L27/14 ,  H01L27/14681 ,  H01L31/022408 ,  H01L31/035272 ,  H01L31/1105 ,  H01L31/115 ,  H01L31/118

摘要： A method for forming a sensor includes forming a base-region barrier in contact with a base substrate. The base-region barrier includes a monocrystalline semiconductor having a same dopant conductivity as the base substrate. An emitter and a collector are formed in contact with and on opposite sides of the base-region barrier to form a bipolar junction transistor. The collector, the emitter and the base-region barrier are planarized to form a level surface opposite the base substrate such that when the level surface is exposed to charge, the charge is measured during operation of the bipolar junction transistor.

摘要翻译： 形成传感器的方法包括形成与基底基板接触的基底区域屏障。 基区域屏障包括具有与基底衬底相同的掺杂剂导电性的单晶半导体。 发射极和集电极形成为与基极区势垒接触并在相对侧上形成双极结型晶体管。 集电极，发射极和基极区势垒被平坦化以形成与基底衬底相对的电平表面，使得当电平表面暴露于电荷时，在双极结型晶体管的操作期间测量电荷。

公开(公告)号：US07611979B2

公开(公告)日：2009-11-03

申请号：US11673901

申请日：2007-02-12

申请人： Alessandro C. Callegari ,  Michael P. Chudzik ,  Barry P. Linder ,  Renee T. Mo ,  Vijay Narayanan ,  Dae-Gyu Park ,  Vamsi K. Paruchuri ,  Sufi Zafar

发明人： Alessandro C. Callegari ,  Michael P. Chudzik ,  Barry P. Linder ,  Renee T. Mo ,  Vijay Narayanan ,  Dae-Gyu Park ,  Vamsi K. Paruchuri ,  Sufi Zafar

IPC分类号： H01L21/3205 ,  H01L21/28

CPC分类号： H01L21/28088 ,  H01L21/28518 ,  H01L29/4966 ,  H01L29/513 ,  H01L29/517 ,  H01L29/665

摘要： A multilayered gate stack having improved reliability (i.e., low charge trapping and gate leakage degradation) is provided. The inventive multilayered gate stack includes, from bottom to top, a metal nitrogen-containing layer located on a surface of a high-k gate dielectric and Si-containing conductor located directly on a surface of the metal nitrogen-containing layer. The improved reliability is achieved by utilizing a metal nitrogen-containing layer having a compositional ratio of metal to nitrogen of less than 1.1. The inventive gate stack can be useful as an element of a complementary metal oxide semiconductor (CMOS). The present invention also provides a method of fabricating such a gate stack in which the process conditions of a sputtering process are varied to control the ratio of metal and nitrogen within the sputter deposited layer.

摘要翻译： 提供了具有改进的可靠性（即，低电荷捕获和栅极泄漏劣化）的多层栅极堆叠。 本发明的多层栅极堆叠包括位于位于金属含氮层的表面上的高k栅极电介质和含Si导体的表面上的含金属层的底部至顶部。 通过利用具有小于1.1的金属与氮的组成比的金属含氮层来实现提高的可靠性。 本发明的栅叠层可用作互补金属氧化物半导体（CMOS）的元件。 本发明还提供一种制造这种栅叠层的方法，其中改变溅射工艺的工艺条件以控制溅射沉积层内的金属和氮的比例。

公开(公告)号：US07566938B2

公开(公告)日：2009-07-28

申请号：US11281032

申请日：2005-11-17

申请人： Cyril Cabral, Jr. ,  Alessandro C. Callegari ,  Michael A. Gribelyuk ,  Paul C. Jamison ,  Dianne L. Lacey ,  Fenton R. McFeely ,  Vijay Narayanan ,  Deborah A. Neumayer ,  Pushkar Ranade ,  Sufi Zafar

发明人： Cyril Cabral, Jr. ,  Alessandro C. Callegari ,  Michael A. Gribelyuk ,  Paul C. Jamison ,  Dianne L. Lacey ,  Fenton R. McFeely ,  Vijay Narayanan ,  Deborah A. Neumayer ,  Pushkar Ranade ,  Sufi Zafar

IPC分类号： H01L29/76

CPC分类号： H01L21/02181 ,  C23C16/405 ,  C23C16/56 ,  H01L21/02189 ,  H01L21/02205 ,  H01L21/02271 ,  H01L21/28185 ,  H01L21/28194 ,  H01L21/28202 ,  H01L21/31604 ,  H01L21/823857 ,  H01L27/0805 ,  H01L29/495 ,  H01L29/4966 ,  H01L29/513 ,  H01L29/517 ,  H01L29/518 ,  H01L29/66545 ,  H01L2924/0002 ,  H01L2924/00

摘要： A method of fabricating hafnium oxide and/or zirconium oxide films is provided. The methods include providing a mixture of Hf and/or Zr alkoxide dissolved, emulsified or suspended in a liquid; vaporizing at least the alkoxide and depositing the vaporized component at a temperature of greater than 400° C. The resultant film is dense, microcrystalline and is capable of self-passivation when treated in a hydrogen plasma or forming gas anneal.

摘要翻译： 提供了一种制造氧化铪和/或氧化锆膜的方法。 所述方法包括提供溶解，乳化或悬浮在液体中的Hf和/或Zr醇盐的混合物; 至少蒸发醇盐并在大于400℃的温度下沉积蒸发的组分。所​​得膜是致密的，微晶的，并且当在氢等离子体中处理或形成气体退火时能够自钝化。

公开(公告)号：US20080245658A1

公开(公告)日：2008-10-09

申请号：US12141476

申请日：2008-06-18

申请人： Alessandro C. Callegari ,  Martin M. Frank ,  Rajarao Jammy ,  Dianne L. Lacey ,  Fenton R. McFeely ,  Sufi Zafar

发明人： Alessandro C. Callegari ,  Martin M. Frank ,  Rajarao Jammy ,  Dianne L. Lacey ,  Fenton R. McFeely ,  Sufi Zafar

IPC分类号： C23C14/00

CPC分类号： H01L29/4966 ,  H01L21/28088 ,  H01L29/513 ,  H01L29/517 ,  H01L29/665 ,  H01L29/6659

摘要： A compound metal comprising HfSiN which is a n-type metal having a workfunction of about 4.0 to about 4.5, preferably about 4.3, eV which is thermally stable on a gate stack comprising a high k dielectric and an interfacial layer. Furthermore, after annealing the stack of HfSiN/high k dielectric/ interfacial layer at a high temperature (on the order of about 1000° C.), there is a reduction of the interfacial layer, thus the gate stack produces a very small equivalent oxide thickness (12 Å classical), which cannot be achieved using TaSiN.

摘要翻译： 包含HfSiN的复合金属，其是具有约4.0至约4.5，优选约4.3的功函数的n型金属，其在包含高k电介质和界面层的栅极堆叠上是热稳定的。 此外，在高温（约1000℃）左右的HfSiN /高k电介质/界面层的堆叠退火之后，界面层的减少，因此栅叠层产生非常小的等效氧化物 厚度（经典），不能用TaSiN实现。

公开(公告)号：US20080038905A1

公开(公告)日：2008-02-14

申请号：US11875524

申请日：2007-10-19

申请人： Alessandro Callegari ,  Martin Frank ,  Rajarao Jammy ,  Dianne Lacey ,  Fenton McFeely ,  Sufi Zafar

发明人： Alessandro Callegari ,  Martin Frank ,  Rajarao Jammy ,  Dianne Lacey ,  Fenton McFeely ,  Sufi Zafar

IPC分类号： H01L21/20 ,  C22C16/00

CPC分类号： H01L29/4966 ,  H01L21/28088 ,  H01L29/513 ,  H01L29/517 ,  H01L29/665 ,  H01L29/6659

摘要： A compound metal comprising HfSiN which is a n-type metal having a workfunction of about 4.0 to about 4.5, preferably about 4.3, eV which is thermally stable on a gate stack comprising a high k dielectric and an interfacial layer. Furthermore, after annealing the stack of HfSiN/high k dielectric/interfacial layer at a high temperature (on the order of about 1000° C.), there is a reduction of the interfacial layer, thus the gate stack produces a very small equivalent oxide thickness (12 Å classical), which cannot be achieved using TaSiN.

摘要翻译： 包含HfSiN的复合金属，其是具有约4.0至约4.5，优选约4.3的功函数的n型金属，其在包含高k电介质和界面层的栅极堆叠上是热稳定的。 此外，在高温（约1000℃）左右的HfSiN /高k电介质/界面层的堆叠退火之后，界面层的减少，因此栅叠层产生非常小的等效氧化物 厚度（经典），不能用TaSiN实现。

公开(公告)号：US20050250318A1

公开(公告)日：2005-11-10

申请号：US11180384

申请日：2005-07-13

申请人： Vijay Narayanan ,  Fenton McFeely ,  Keith Milkove ,  John Yurkas ,  Matthew Copel ,  Paul Jamison ,  Roy Carruthers ,  Cyril Cabral ,  Edmund Sikorskii ,  Elizabeth Duch ,  Alessandro Callegari ,  Sufi Zafar ,  Kazuhito Nakamura

发明人： Vijay Narayanan ,  Fenton McFeely ,  Keith Milkove ,  John Yurkas ,  Matthew Copel ,  Paul Jamison ,  Roy Carruthers ,  Cyril Cabral ,  Edmund Sikorskii ,  Elizabeth Duch ,  Alessandro Callegari ,  Sufi Zafar ,  Kazuhito Nakamura

IPC分类号： C23C16/34 ,  H01L21/28 ,  H01L21/336 ,  H01L21/8234 ,  H01L21/8238 ,  H01L29/10 ,  H01L29/49 ,  H01L29/772 ,  H01L29/78 ,  H01L21/3205 ,  H01L21/31 ,  H01L21/44 ,  H01L21/469 ,  H01L21/4763

CPC分类号： C23C16/34 ,  H01L21/28088 ,  H01L21/823828 ,  H01L29/4966 ,  H01L29/78

摘要： Compounds of Ta and N, potentially including further elements, and with a resistivity below about 20 mΩcm and with the elemental ratio of N to Ta greater than about 0.9 are disclosed for use as gate materials in field effect devices. A representative embodiment of such compounds, TaSiN, is stable at typical CMOS processing temperatures on SiO2 containing dielectric layers and high-k dielectric layers, with a workfunction close to that of n-type Si. Metallic Ta—N compounds are deposited by a chemical vapor deposition method using an alkylimidotris(dialkylamido)Ta species, such as tertiaryamylimidotris(dimethylamido)Ta (TAIMATA), as Ta precursor. The deposition is conformal allowing for flexible introduction of the Ta—N metallic compounds into a CMOS processing flow. Devices processed with TaN or TaSiN show near ideal characteristics.

摘要翻译： 公开了Ta和N的化合物，潜在地包括其它元素，并且电阻率低于约20mOmegacm，并且N与Ta的元素比大于约0.9，用作场效应器件中的栅极材料。 这种化合物的典型实施方案TaSiN在典型的CMOS处理温度下在含有介电层和高k电介质层的SiO 2 2上是稳定的，功函数接近n型Si的功函数。 金属Ta-N化合物通过化学气相沉积方法使用烷基亚氨基三（二烷基酰氨基）Ta种，例如叔戊酰亚胺基三（二甲基酰氨基）Ta（TAIMATA））作为Ta前体沉积。 沉积是共形的，允许将Ta-N金属化合物柔性引入CMOS加工流程。 用TaN或TaSiN处理的器件显示出接近理想的特性。