公开(公告)号：US20160181085A1

公开(公告)日：2016-06-23

申请号：US14908112

申请日：2013-09-27

Applicant: INTEL CORPORATION

Inventor： Sansaptak DASGUPTA ,  Han Wui THEN ,  Seung Hoon SUNG ,  Sanaz K. GARDNER ,  Marko RADOSAVLJEVIC ,  Benjamin CHU-KUNG ,  Robert S. CHAU

IPC: H01L21/02 ,  H01L29/20 ,  H01L29/205 ,  H01L29/778

CPC classification number: H01L21/0243 ,  H01L21/02381 ,  H01L21/02433 ,  H01L21/02458 ,  H01L21/02488 ,  H01L21/02505 ,  H01L21/0254 ,  H01L21/02639 ,  H01L21/02647 ,  H01L21/8258 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/7787

Abstract: An insulating layer is conformally deposited on a plurality of mesa structures in a trench on a substrate. The insulating layer fills a space outside the mesa structures. A nucleation layer is deposited on the mesa structures. A III-V material layer is deposited on the nucleation layer. The III-V material layer is laterally grown over the insulating layer.

Abstract translation: 绝缘层被共形沉积在衬底上的沟槽中的多个台面结构上。 绝缘层填充台面结构外部的空间。 成核层沉积在台面结构上。 III-V材料层沉积在成核层上。 在绝缘层上横向生长III-V材料层。

公开(公告)号：US20190189770A1

公开(公告)日：2019-06-20

申请号：US16284980

申请日：2019-02-25

Applicant: Intel Corporation

Inventor： Willy RACHMADY ,  Matthew V. METZ ,  Van H. LE ,  Jack T. KAVALIEROS ,  Sanaz K. GARDNER

IPC: H01L29/66 ,  H01L29/786 ,  H01L29/78 ,  H01L29/06 ,  H01L29/775 ,  H01L29/423 ,  B82Y10/00 ,  H01L27/092 ,  H01L29/16 ,  H01L29/08

CPC classification number: H01L29/6681 ,  B82Y10/00 ,  H01L21/0243 ,  H01L21/02532 ,  H01L21/02546 ,  H01L21/02603 ,  H01L21/30612 ,  H01L27/0924 ,  H01L29/0673 ,  H01L29/068 ,  H01L29/0847 ,  H01L29/16 ,  H01L29/20 ,  H01L29/267 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/6653 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/775 ,  H01L29/7853 ,  H01L29/78696

Abstract: An apparatus including a three-dimensional semiconductor body including a channel region and junction regions disposed on opposite sides of the channel region, the three-dimensional semiconductor body including a plurality of nanowires including a germanium material disposed in respective planes separated in the junction regions by a second material, wherein a lattice constant of the second material is similar to a lattice constant of the germanium material; and a gate stack disposed on the channel region, the gate stack including a gate electrode disposed on a gate dielectric. A method of including forming a plurality of nanowires in separate planes on a substrate, each of the plurality of nanowires including a germanium material and separated from an adjacent nanowire by a sacrificial material; disposing a gate stack on the plurality of nanowires in a designated channel region, the gate stack including a dielectric material and a gate electrode.

公开(公告)号：US20190172938A1

公开(公告)日：2019-06-06

申请号：US16258422

申请日：2019-01-25

Applicant: Intel Corporation

Inventor： Sansaptak DASGUPTA ,  Han Wui THEN ,  Sanaz K. GARDNER ,  Marko RADOSAVLJEVIC ,  Seung Hoon SUNG ,  Benjamin CHU-KUNG ,  Robert S. CHAU

IPC: H01L29/778 ,  H01L21/02 ,  H01L29/66

Abstract: III-N semiconductor heterostructures on III-N epitaxial islands laterally overgrown from a mesa of a silicon substrate. An IC may include a III-N semiconductor device disposed on the III-N epitaxial island overhanging the silicon mesa and may further include a silicon-based MOSFET monolithically integrated with the III-N device. Lateral epitaxial overgrowth from silicon mesas may provide III-N semiconductor regions of good crystal quality upon which transistors or other active semiconductor devices may be fabricated. Overhanging surfaces of III-N islands may provide multiple device layers on surfaces of differing polarity. Spacing between separate III-N islands may provide mechanical compliance to an IC including III-N semiconductor devices. Undercut of the silicon mesa may be utilized for transfer of III-N epitaxial islands to alternative substrates.

公开(公告)号：US20180219087A1

公开(公告)日：2018-08-02

申请号：US15505911

申请日：2014-09-25

Applicant: Intel Corporation

Inventor： Sansaptak DASGUPTA ,  Han Wui THEN ,  Sanaz K. GARDNER ,  Marko RADOSAVLJEVIC ,  Seung Hoon SUNG ,  Benjamin CHU-KUNG ,  Robert S. CHAU

IPC: H01L29/778 ,  H01L21/02 ,  H01L29/66

CPC classification number: H01L29/7786 ,  H01L21/02381 ,  H01L21/0243 ,  H01L21/02433 ,  H01L21/0254 ,  H01L21/02639 ,  H01L21/0265 ,  H01L29/0657 ,  H01L29/41725 ,  H01L29/66462

Abstract: III-N semiconductor heterostructures on III-N epitaxial islands laterally overgrown from a mesa of a silicon substrate. An IC may include a III-N semiconductor device disposed on the III-N epitaxial island overhanging the silicon mesa and may further include a silicon-based MOSFET monolithically integrated with the III-N device. Lateral epitaxial overgrowth from silicon mesas may provide III-N semiconductor regions of good crystal quality upon which transistors or other active semiconductor devices may be fabricated. Overhanging surfaces of III-N islands may provide multiple device layers on surfaces of differing polarity. Spacing between separate III-N islands may provide mechanical compliance to an IC including III-N semiconductor devices. Undercut of the silicon mesa may be utilized for transfer of III-N epitaxial islands to alternative substrates.

公开(公告)号：US20170256408A1

公开(公告)日：2017-09-07

申请号：US15604550

申请日：2017-05-24

Applicant: Intel Corporation

Inventor： Niloy MUKHERJEE ,  Niti GOEL ,  Sanaz K. GARDNER ,  Pragyansri PATHI ,  Matthew V. METZ ,  Sansaptak DASGUPTA ,  Seung Hoon SUNG ,  James M. POWERS ,  Gilbert DEWEY ,  Benjamin CHU-KUNG ,  Jack T. KAVALIEROS ,  Robert S. CHAU

IPC: G06Q30/02

CPC classification number: H01L21/02694 ,  H01L21/02381 ,  H01L21/02516 ,  H01L21/02532 ,  H01L21/02538 ,  H01L21/02609 ,  H01L21/02636 ,  H01L21/02639 ,  H01L21/76224 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823878 ,  H01L21/8258 ,  H01L27/0924 ,  H01L29/045 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/165 ,  H01L29/267 ,  H01L29/7848

Abstract: Trenches (and processes for forming the trenches) are provided that reduce or prevent crystaline defects in selective epitaxial growth of type III-V or Germanium (Ge) material (e.g., a “buffer” material) from a top surface of a substrate material. The defects may result from collision of selective epitaxial sidewall growth with oxide trench sidewalls. Such trenches include (1) a trench having sloped sidewalls at an angle of between 40 degrees and 70 degrees (e.g., such as 55 degrees) with respect to a substrate surface; and/or (2) a combined trench having an upper trench over and surrounding the opening of a lower trench (e.g., the lower trench may have the sloped sidewalls, short vertical walls, or tall vertical walls). These trenches reduce or prevent defects in the epitaxial sidewall growth where the growth touches or grows against vertical sidewalls of a trench it is grown in.

公开(公告)号：US20160181099A1

公开(公告)日：2016-06-23

申请号：US14908987

申请日：2013-09-04

Applicant: INTEL CORPORATION

Inventor： Niloy MUKHERJEE ,  Niti GOEL ,  Sanaz K. GARDNER ,  Pragyansri PATHI ,  Matthew V. METZ ,  Sansaptak DASGUPTA ,  Seung Hoon SUNG ,  James M. POWERS ,  Gilbert DEWEY ,  Benjamin CHU-KUNG ,  Jack T. KAVALIEROS ,  Robert S. CHAU

IPC: H01L21/02 ,  H01L27/092 ,  H01L29/08 ,  H01L29/78 ,  H01L29/165 ,  H01L29/04 ,  H01L29/06 ,  H01L21/8238 ,  H01L29/267

CPC classification number: H01L21/02694 ,  H01L21/02381 ,  H01L21/02516 ,  H01L21/02532 ,  H01L21/02538 ,  H01L21/02609 ,  H01L21/02636 ,  H01L21/02639 ,  H01L21/76224 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823878 ,  H01L21/8258 ,  H01L27/0924 ,  H01L29/045 ,  H01L29/0653 ,  H01L29/0847 ,  H01L29/165 ,  H01L29/267 ,  H01L29/7848

Abstract: Trenches (and processes for forming the trenches) are provided that reduce or prevent crystaline defects in selective epitaxial growth of type III-V or Germanium (Ge) material (e.g., a “buffer” material) from a top surface of a substrate material. The defects may result from collision of selective epitaxial sidewall growth with oxide trench sidewalls. Such trenches include (I) a trench having sloped sidewalls at an angle of between 40 degrees and 70 degrees (e.g., such as 55 degrees) with respect to a substrate surface; and/or (2) a combined trench having an upper trench over and surrounding the opening of a lower trench (e.g., the lower trench may have the sloped sidewalls, short vertical walls, or tall vertical walls). These trenches reduce or prevent defects in the epitaxial sidewall growth where the growth touches or grows against vertical sidewalls of a trench it is grown in.

Abstract translation: 提供沟槽（以及用于形成沟槽的工艺），其从衬底材料的顶表面减少或防止III-V族或锗（Ge）材料（例如，“缓冲材料”）的选择性外延生长中的晶体缺陷。 缺陷可能由选择性外延侧壁生长与氧化物沟槽侧壁的碰撞引起。 这种沟槽包括（I）相对于衬底表面以40度至70度（例如55度）之间的角度具有倾斜侧壁的沟槽; 和/或（2）具有在下沟槽的开口上方并且围绕下沟槽（例如，下沟槽可以具有倾斜侧壁，短垂直壁或高垂直壁）的上沟槽的组合沟槽。 这些沟槽减少或防止外延侧壁生长中的缺陷，其中生长与其生长的沟槽的垂直侧壁接触或生长。

公开(公告)号：US20190172941A1

公开(公告)日：2019-06-06

申请号：US16304620

申请日：2016-07-02

Applicant: INTEL CORPORATION

Inventor： Willy RACHMADY ,  Sanaz K. GARDNER ,  Chandra S. MOHAPATRA ,  Matthew V. METZ ,  Gilbert DEWEY ,  Sean T. MA ,  Jack T. KAVALIEROS ,  Anand S. MURTHY ,  Tahir GHANI

IPC: H01L29/78 ,  H01L29/417 ,  H01L29/66 ,  H01L29/06 ,  H01L29/775

Abstract: Embodiments are generally directed to a semiconductor device with released source and drain. An embodiment of a method includes etching a buffer layer of a semiconductor device to form a gate trench under a gate channel portion of a channel layer of the device; filling the gate trench with an oxide material to form an oxide isolation layer; etching one or more source/drain contact trenches in an interlayer dielectric (ILD) layer for source and drain regions of the device; etching the oxide isolation layer within the one or more source/drain contact trenches to form one or more cavities under a source/drain channel in the source and drain regions, wherein the etching of each contact trench is to expose all sides of the source/drain channel; and depositing contact metal in the one or more contact trenches, including depositing the contact metal in the cavities under the source/drain channel.

公开(公告)号：US20180331191A1

公开(公告)日：2018-11-15

申请号：US15777140

申请日：2015-12-23

Applicant: Intel Corporation

Inventor： Han Wui THEN ,  Sansaptak DASGUPTA ,  Marko RADOSAVLJEVIC ,  Sanaz K. GARDNER ,  Seung Hoon SUNG

IPC: H01L29/40 ,  H01L29/78 ,  H01L29/20 ,  H01L29/66 ,  H01L21/765

CPC classification number: H01L29/404 ,  H01L21/765 ,  H01L29/2003 ,  H01L29/66462 ,  H01L29/66522 ,  H01L29/7786 ,  H01L29/78

Abstract: Embodiments of the invention include a high voltage transistor with one or more field plates and methods of forming such transistors. According to an embodiment, the transistor may include a source region, a drain region, and a gate electrode formed over a channel region formed between the source region and drain region. Embodiments of the invention may also include a first interlayer dielectric (ILD) formed over the channel region and a second ILD formed over the first ILD. According to an embodiment, a first field plate may be formed in the second ILD. In an embodiment the first field plate is not formed as a single bulk conductive feature with the gate electrode. In some embodiments, the first field plate may be electrically coupled to the gate electrode by one or more vias. In alternative embodiments, the first field plate may be electrically isolated from the gate electrode.

公开(公告)号：US20180158933A1

公开(公告)日：2018-06-07

申请号：US15576468

申请日：2015-06-27

Applicant: Intel Corporation

Inventor： Van H. LE ,  Gilbert DEWEY ,  Benjamin CHU-KUNG ,  Ashish AGRAWAL ,  Matthew V. METZ ,  Willy RACHMADY ,  Marc C. FRENCH ,  Jack T. KAVALIEROS ,  Rafael RIOS ,  Seiyon KIM ,  Seung Hoon SUNG ,  Sanaz K. GARDNER ,  James M. POWERS ,  Sherry R. TAFT

IPC: H01L29/66 ,  H01L29/786

CPC classification number: H01L29/66977 ,  H01L29/1054 ,  H01L29/66742 ,  H01L29/66795 ,  H01L29/78 ,  H01L29/785 ,  H01L29/78609 ,  H01L29/78684 ,  H01L29/78696

Abstract: A method including forming a non-planar conducting channel of a device between junction regions on a substrate, the substrate including a blocking material beneath the channel, the blocking material including a property to inhibit carrier leakage; and forming a gate stack on the channel, the gate stack including a dielectric material and a gate electrode. A method including forming a buffer material on a semiconductor substrate, the buffer material including a semiconductor material including a different lattice structure than the substrate; forming a blocking material on the buffer material, the blocking material including a property to inhibit carrier leakage; and forming a transistor device on the substrate. An apparatus including a non-planar multi-gate device on a substrate including a transistor device including a channel disposed on a substrate including a blocking material beneath the channel, the blocking material including a property to inhibit carrier leakage.

公开(公告)号：US20180138289A1

公开(公告)日：2018-05-17

申请号：US15576666

申请日：2015-06-27

Applicant: Intel Corporation

Inventor： Willy RACHMADY ,  Matthew V. METZ ,  Van H. LE ,  Jack T. KAVALIEROS ,  Sanaz K. GARDNER

IPC: H01L29/66 ,  H01L29/78 ,  H01L29/06 ,  H01L29/08 ,  H01L29/267 ,  H01L27/092

CPC classification number: H01L29/6681 ,  H01L21/0243 ,  H01L21/02532 ,  H01L21/02546 ,  H01L21/02603 ,  H01L21/30612 ,  H01L27/0924 ,  H01L29/0673 ,  H01L29/068 ,  H01L29/0847 ,  H01L29/16 ,  H01L29/20 ,  H01L29/267 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/6653 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/775 ,  H01L29/7853

Abstract: An apparatus including a three-dimensional semiconductor body including a channel region and junction regions disposed on opposite sides of the channel region, the three-dimensional semiconductor body including a plurality of nanowires including a germanium material disposed in respective planes separated in the junction regions by a second material, wherein a lattice constant of the second material is similar to a lattice constant of the germanium material; and a gate stack disposed on the channel region, the gate stack including a gate electrode disposed on a gate dielectric. A method of including forming a plurality of nanowires in separate planes on a substrate, each of the plurality of nanowires including a germanium material and separated from an adjacent nanowire by a sacrificial material; disposing a gate stack on the plurality of nanowires in a designated channel region, the gate stack including a dielectric material and a gate electrode.