公开(公告)号：US20140291726A1

公开(公告)日：2014-10-02

申请号：US14302350

申请日：2014-06-11

Applicant: Ravi Pillarisetty ,  Seung Hoon SUNG ,  Niti GOEL ,  Jack T. KAVALIEROS ,  Sansaptak DASGUPTA ,  Van H. LE ,  Willy RACHMADY ,  Marko RADOSAVLJEVIC ,  Gilbert DEWEY ,  Han Wui THEN ,  Niloy MUKHERJEE ,  Matthew V. METZ ,  Robert S. Chau

Inventor： Ravi Pillarisetty ,  Seung Hoon SUNG ,  Niti GOEL ,  Jack T. KAVALIEROS ,  Sansaptak DASGUPTA ,  Van H. LE ,  Willy RACHMADY ,  Marko RADOSAVLJEVIC ,  Gilbert DEWEY ,  Han Wui THEN ,  Niloy MUKHERJEE ,  Matthew V. METZ ,  Robert S. Chau

IPC: H01L27/092 ,  H01L29/78

CPC classification number: H01L21/845 ,  B82Y10/00 ,  B82Y40/00 ,  H01L21/02639 ,  H01L21/823807 ,  H01L21/8258 ,  H01L27/092 ,  H01L27/1211 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/6653 ,  H01L29/66795 ,  H01L29/6681 ,  H01L29/775 ,  H01L29/78 ,  H01L29/785 ,  H01L29/7853 ,  H01L29/78696

Abstract: Trench-confined selective epitaxial growth process in which epitaxial growth of a semiconductor device layer proceeds within the confines of a trench. In embodiments, a trench is fabricated to include a pristine, planar semiconductor seeding surface disposed at the bottom of the trench. Semiconductor regions around the seeding surface may be recessed relative to the seeding surface with Isolation dielectric disposed there on to surround the semiconductor seeding layer and form the trench. In embodiments to form the trench, a sacrificial hardmask fin may be covered in dielectric which is then planarized to expose the hardmask fin, which is then removed to expose the seeding surface. A semiconductor device layer is formed from the seeding surface through selective heteroepitaxy. In embodiments, non-planar devices are formed from the semiconductor device layer by recessing a top surface of the isolation dielectric. In embodiments, non-planar devices CMOS devices having high carrier mobility may be made from the semiconductor device layer.

公开(公告)号：US08802517B2

公开(公告)日：2014-08-12

申请号：US13962890

申请日：2013-08-08

Applicant: Suman Datta ,  Mantu K. Hudait ,  Mark L. Doczy ,  Jack T. Kavalieros ,  Majumdar Amian ,  Justin K. Brask ,  Been-Yih Jin ,  Matthew V. Metz ,  Robert S. Chau

Inventor： Suman Datta ,  Mantu K. Hudait ,  Mark L. Doczy ,  Jack T. Kavalieros ,  Majumdar Amian ,  Justin K. Brask ,  Been-Yih Jin ,  Matthew V. Metz ,  Robert S. Chau

IPC: H01L21/338

CPC classification number: H01L29/7784 ,  H01L21/02178 ,  H01L21/02381 ,  H01L21/02546 ,  H01L21/823807 ,  H01L21/823885 ,  H01L21/8252 ,  H01L27/0605 ,  H01L27/092 ,  H01L29/1054 ,  H01L29/122 ,  H01L29/15 ,  H01L29/157 ,  H01L29/205 ,  H01L29/41783 ,  H01L29/42364 ,  H01L29/42376 ,  H01L29/517 ,  H01L29/66462 ,  H01L29/66522 ,  H01L29/7783

Abstract: A CMOS device includes a PMOS transistor with a first quantum well structure and an NMOS device with a second quantum well structure. The PMOS and NMOS transistors are formed on a substrate.

Abstract translation: CMOS器件包括具有第一量子阱结构的PMOS晶体管和具有第二量子阱结构的NMOS器件。 PMOS和NMOS晶体管形成在衬底上。

公开(公告)号：US08741733B2

公开(公告)日：2014-06-03

申请号：US13750393

申请日：2013-01-25

Applicant: Titash Rakshit ,  Martin Giles ,  Ravi Pillarisetty ,  Jack T. Kavalieros

Inventor： Titash Rakshit ,  Martin Giles ,  Ravi Pillarisetty ,  Jack T. Kavalieros

IPC: H01L21/76

CPC classification number: H01L29/7845 ,  H01L21/8234 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/823828 ,  H01L21/823842 ,  H01L21/823878 ,  H01L21/845 ,  H01L27/0924 ,  H01L27/1211 ,  H01L29/0653 ,  H01L29/495 ,  H01L29/66795 ,  H01L29/7831 ,  H01L29/785

Abstract: Embodiments relate to an improved tri-gate device having gate metal fills, providing compressive or tensile stress upon at least a portion of the tri-gate transistor, thereby increasing the carrier mobility and operating frequency. Embodiments also contemplate method for use of the improved tri-gate device.

Abstract translation: 实施例涉及具有栅极金属填充物的改进的三栅极器件，在三栅极晶体管的至少一部分上提供压缩或拉伸应力，由此增加载流子迁移率和工作频率。 实施例还考虑了使用改进的三栅极器件的方法。

公开(公告)号：US20130344668A1

公开(公告)日：2013-12-26

申请号：US13971716

申请日：2013-08-20

Applicant: Suman Datta ,  Jack T. Kavalieros ,  Been-Yih Jin

Inventor： Suman Datta ,  Jack T. Kavalieros ,  Been-Yih Jin

IPC: H01L29/66

CPC classification number: H01L29/1033 ,  H01L29/0673 ,  H01L29/201 ,  H01L29/205 ,  H01L29/41725 ,  H01L29/66431 ,  H01L29/66545 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/66787 ,  H01L29/775 ,  H01L29/78 ,  H01L29/785

Abstract: A method to form a strain-inducing semiconductor region is described. In one embodiment, formation of a strain-inducing semiconductor region laterally adjacent to a crystalline substrate results in a uniaxial strain imparted to the crystalline substrate, providing a strained crystalline substrate. In another embodiment, a semiconductor region with a crystalline lattice of one or more species of charge-neutral lattice-forming atoms imparts a strain to a crystalline substrate, wherein the lattice constant of the semiconductor region is different from that of the crystalline substrate, and wherein all species of charge-neutral lattice-forming atoms of the semiconductor region are contained in the crystalline substrate.

Abstract translation: 描述形成应变诱导半导体区域的方法。 在一个实施方案中，形成横向邻近晶体衬底的应变诱导半导体区域导致赋予晶体衬底的单轴应变，从而提供应变的晶体衬底。 在另一个实施方案中，具有一种或多种电荷 - 中性晶格形成原子的晶格的半导体区域向晶体衬底赋予应变，其中半导体区域的晶格常数与晶体衬底的晶格常数不同，以及 其中所述半导体区域的电荷 - 中性晶格形成原子的所有种类都包含在所述晶体衬底中。

公开(公告)号：US20130341704A1

公开(公告)日：2013-12-26

申请号：US13997162

申请日：2011-12-30

Applicant: Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Seung Hoon Sung

Inventor： Willy Rachmady ,  Van H. Le ,  Ravi Pillarisetty ,  Jack T. Kavalieros ,  Robert S. Chau ,  Seung Hoon Sung

IPC: H01L29/78 ,  H01L29/66

CPC classification number: H01L29/0676 ,  B82Y10/00 ,  B82Y40/00 ,  H01L21/02603 ,  H01L21/30604 ,  H01L29/0673 ,  H01L29/1033 ,  H01L29/41791 ,  H01L29/4232 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/66613 ,  H01L29/66795 ,  H01L29/775 ,  H01L29/78 ,  H01L29/785 ,  H01L29/78696 ,  H01L2029/7858 ,  Y10S977/762 ,  Y10S977/89 ,  Y10S977/938

Abstract: Nanowire-based gate all-around transistor devices having one or more active nanowires and one or more inactive nanowires are described herein. Methods to fabricate such devices are also described. One or more embodiments of the present invention are directed at approaches for varying the gate width of a transistor structure comprising a nanowire stack having a distinct number of nanowires. The approaches include rendering a certain number of nanowires inactive (i.e. so that current does not flow through the nanowire), by severing the channel region, burying the source and drain regions, or both. Overall, the gate width of nanowire-based structures having a plurality of nanowires may be varied by rendering a certain number of nanowires inactive, while maintaining other nanowires as active.

Abstract translation: 本文描述了具有一个或多个活性纳米线和一个或多个非活性纳米线的基于纳米线的栅极全周极晶体管器件。 还描述了制造这种装置的方法。 本发明的一个或多个实施例涉及用于改变包括具有不同数量的纳米线的纳米线堆叠的晶体管结构的栅极宽度的方法。 这些方法包括使一定数量的纳米线无效（即使得电流不流过纳米线），通过切断沟道区，掩埋源区和漏区，或两者。 总之，具有多个纳米线的纳米线基结构的栅极宽度可以通过使一定数量的纳米线无效而保持其它纳米线作为活性而变化。

公开(公告)号：US20130328015A1

公开(公告)日：2013-12-12

申请号：US13962890

申请日：2013-08-08

Applicant: Suman Datta ,  Mantu K. Hudait ,  Mark L. Doczy ,  Jack T. Kavalieros ,  Majumdar Amian ,  Justin K. Brask ,  Been-Yih Jin ,  Matthew V. Metz ,  Robert S. Chau

Inventor： Suman Datta ,  Mantu K. Hudait ,  Mark L. Doczy ,  Jack T. Kavalieros ,  Majumdar Amian ,  Justin K. Brask ,  Been-Yih Jin ,  Matthew V. Metz ,  Robert S. Chau

IPC: H01L27/092 ,  H01L21/8238

CPC classification number: H01L29/7784 ,  H01L21/02178 ,  H01L21/02381 ,  H01L21/02546 ,  H01L21/823807 ,  H01L21/823885 ,  H01L21/8252 ,  H01L27/0605 ,  H01L27/092 ,  H01L29/1054 ,  H01L29/122 ,  H01L29/15 ,  H01L29/157 ,  H01L29/205 ,  H01L29/41783 ,  H01L29/42364 ,  H01L29/42376 ,  H01L29/517 ,  H01L29/66462 ,  H01L29/66522 ,  H01L29/7783

Abstract: A CMOS device includes a PMOS transistor with a first quantum well structure and an NMOS device with a second quantum well structure. The PMOS and NMOS transistors are formed on a substrate.

Abstract translation: CMOS器件包括具有第一量子阱结构的PMOS晶体管和具有第二量子阱结构的NMOS器件。 PMOS和NMOS晶体管形成在衬底上。

公开(公告)号：US20120305990A1

公开(公告)日：2012-12-06

申请号：US13588416

申请日：2012-08-17

Applicant: Stephen M Cea ,  Martin D. Giles ,  Kelin Kuhn ,  Jack T. Kavalieros ,  Markus Kuhn

Inventor： Stephen M Cea ,  Martin D. Giles ,  Kelin Kuhn ,  Jack T. Kavalieros ,  Markus Kuhn

IPC: H01L29/78 ,  H01L21/265

CPC classification number: H01L29/785 ,  H01L21/76224 ,  H01L29/66795 ,  H01L29/7842

Abstract: The present disclosure relates to the field of fabricating microelectronic devices. In at least one embodiment, the present disclosure relates to forming isolation structures in strained semiconductor bodies of non-planar transistors while maintaining strain in the semiconductor bodies.

Abstract translation: 本公开涉及制造微电子器件的领域。 在至少一个实施例中，本公开涉及在保持半导体本体中的应变的同时在非平面晶体管的应变半导体本体中形成隔离结构。

公开(公告)号：US08283653B2

公开(公告)日：2012-10-09

申请号：US12646477

申请日：2009-12-23

Applicant: Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been Y. Jin ,  Robert S. Chau

Inventor： Ravi Pillarisetty ,  Jack T. Kavalieros ,  Willy Rachmady ,  Uday Shah ,  Benjamin Chu-Kung ,  Marko Radosavljevic ,  Niloy Mukherjee ,  Gilbert Dewey ,  Been Y. Jin ,  Robert S. Chau

IPC: H01L29/06

CPC classification number: H01L29/775 ,  B82Y10/00 ,  H01L21/76 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66439 ,  H01L29/66477 ,  H01L29/66795 ,  H01L29/66977 ,  H01L29/7782 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for forming a non-planar germanium quantum well structure. In particular, the quantum well structure can be implemented with group IV or III-V semiconductor materials and includes a germanium fin structure. In one example case, a non-planar quantum well device is provided, which includes a quantum well structure having a substrate (e.g. SiGe or GaAs buffer on silicon), a IV or III-V material barrier layer (e.g., SiGe or GaAs or AlGaAs), a doping layer (e.g., delta/modulation doped), and an undoped germanium quantum well layer. An undoped germanium fin structure is formed in the quantum well structure, and a top barrier layer deposited over the fin structure. A gate metal can be deposited across the fin structure. Drain/source regions can be formed at respective ends of the fin structure.

Abstract translation: 公开了用于形成非平面锗量子阱结构的技术。 特别地，量子阱结构可以用IV或III-V族半导体材料实现，并且包括锗鳍结构。 在一个示例性情况下，提供了非平面量子阱器件，其包括具有衬底（例如硅上的SiGe或GaAs缓冲器），IV或III-V材料阻挡层（例如，SiGe或GaAs或 AlGaAs），掺杂层（例如，掺杂Δ/调制）和未掺杂的锗量子阱层。 在量子阱结构中形成未掺杂的锗鳍结构，以及沉积在鳍结构上的顶部势垒层。 栅极金属可以跨鳍片结构沉积。 排水/源极区域可以形成在翅片结构的相应端部处。

公开(公告)号：US08264048B2

公开(公告)日：2012-09-11

申请号：US12032603

申请日：2008-02-15

Applicant: Willy Rachmady ,  Uday Shah ,  Jack T. Kavalieros

Inventor： Willy Rachmady ,  Uday Shah ,  Jack T. Kavalieros

IPC: H01L29/78 ,  H01L21/336

CPC classification number: H01L29/42376 ,  H01L21/28114 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/785

Abstract: A multi-gate device having a T-shaped gate structure is generally described. In one example, an apparatus includes a semiconductor substrate, at least one multi-gate fin coupled with the semiconductor substrate, the multi-gate fin having a gate region, a source region, and a drain region, the gate region being positioned between the source and drain regions, a gate dielectric coupled to the gate region of the multi-gate fin, a gate electrode coupled to the gate dielectric, the gate electrode having a first thickness and a second thickness, the second thickness being greater than the first thickness, a first spacer dielectric coupled to a portion of the gate electrode having the first thickness, and a second spacer dielectric coupled to the first spacer dielectric and coupled to the gate electrode where the second spacer dielectric is coupled to a portion of the gate electrode having the second thickness.

Abstract translation: 通常描述具有T形栅极结构的多栅极器件。 在一个示例中，设备包括半导体衬底，与半导体衬底耦合的至少一个多栅极鳍，多栅极鳍具有栅极区，源极区和漏极区，栅极区位于 源极和漏极区域，耦合到多栅极鳍的栅极区域的栅极电介质，耦合到栅极电介质的栅电极，栅电极具有第一厚度和第二厚度，第二厚度大于第一厚度 耦合到具有第一厚度的栅电极的一部分的第一间隔电介质和耦合到第一间隔电介质并耦合到栅电极的第二间隔电介质，其中第二间隔电介质耦合到栅电极的一部分， 第二厚度。

公开(公告)号：US08217383B2

公开(公告)日：2012-07-10

申请号：US12876922

申请日：2010-09-07

Applicant: Mantu K. Hudait ,  Suman Datta ,  Jack T. Kavalieros ,  Peter G. Tolchinsky

Inventor： Mantu K. Hudait ,  Suman Datta ,  Jack T. Kavalieros ,  Peter G. Tolchinsky

IPC: H01L29/775 ,  H01L29/20

CPC classification number: H01L29/7782 ,  H01L21/02381 ,  H01L21/02433 ,  H01L21/02463 ,  H01L21/02505 ,  H01L21/02546 ,  H01L21/02573 ,  H01L21/0262 ,  H01L29/267 ,  H01L29/66431

Abstract: The present disclosure provides an apparatus and method for implementing a high hole mobility p-channel Germanium (“Ge”) transistor structure on a Silicon (“Si”) substrate. One exemplary apparatus may include a buffer layer including a GaAs nucleation layer, a first GaAs buffer layer, and a second GaAs buffer layer. The exemplary apparatus may further include a bottom barrier on the second GaAs buffer layer and having a band gap greater than 1.1 eV, a Ge active channel layer on the bottom barrier and having a valence band offset relative to the bottom barrier that is greater than 0.3 eV, and an AlAs top barrier on the Ge active channel layer wherein the AlAs top barrier has a band gap greater than 1.1 eV. Of course, many alternatives, variations and modifications are possible without departing from this embodiment.

Abstract translation: 本公开提供了一种在硅（“Si”）衬底上实现高空穴迁移率p沟道锗（“Ge”）晶体管结构的装置和方法。 一个示例性装置可以包括包括GaAs成核层，第一GaAs缓冲层和第二GaAs缓冲层的缓冲层。 该示例性装置还可以包括第二GaAs缓冲层上的底部阻挡层，并具有大于1.1eV的带隙，底部势垒上的Ge活性通道层，并且相对于底部势垒的价带偏移大于0.3 eV和Ge活性通道层上的AlAs顶部势垒，其中AlAs顶部势垒具有大于1.1eV的带隙。 当然，在不脱离本实施例的情况下，可以进行许多替代，变化和修改。