公开(公告)号：US20160190322A1

公开(公告)日：2016-06-30

申请号：US14584639

申请日：2014-12-29

Applicant: STMICROELECTRONICS, INC. ,  INTERNATIONAL BUSINESS MACHINES CORPORATION ,  GLOBALFOUNDRIES, Inc.

Inventor： Qing LIU ,  Ruilong XIE ,  Xiuyu CAI ,  Chun-chen YEH

IPC: H01L29/78 ,  H01L29/66 ,  H01L21/8234 ,  H01L29/45 ,  H01L21/02 ,  H01L29/417 ,  H01L29/08

CPC classification number: H01L29/7851 ,  H01L21/02181 ,  H01L21/28518 ,  H01L21/76897 ,  H01L21/823425 ,  H01L21/823431 ,  H01L21/823437 ,  H01L29/0847 ,  H01L29/41783 ,  H01L29/41791 ,  H01L29/45 ,  H01L29/665 ,  H01L29/66545 ,  H01L29/6656 ,  H01L29/66795

Abstract: A large area electrical contact for use in integrated circuits features a non-planar, sloped bottom profile. The sloped bottom profile provides a larger electrical contact area, thus reducing the contact resistance, while maintaining a small contact footprint. The sloped bottom profile can be formed by recessing an underlying layer, wherein the bottom profile can be crafted to have a V-shape, U-shape, crescent shape, or other profile shape that includes at least a substantially sloped portion in the vertical direction. In one embodiment, the underlying layer is an epitaxial fin of a FinFET. A method of fabricating the low-resistance electrical contact employs a thin etch stop liner for use as a hard mask. The etch stop liner, e.g., HfO2, prevents erosion of an adjacent gate structure during the formation of the contact.

Abstract translation: 用于集成电路的大面积电接触具有非平面，倾斜的底部轮廓。 倾斜的底部轮廓提供更大的电接触面积，从而降低接触电阻，同时保持小的接触足迹。 倾斜的底部轮廓可以通过凹陷下面的层来形成，其中底部轮廓可以被制造成具有V形，U形，月牙形或其它轮廓形状，其在竖直方向上至少包括基本上倾斜的部分 。 在一个实施例中，下层是FinFET的外延翅片。 制造低电阻电接触的方法采用用作硬掩模的薄蚀刻停止衬垫。 蚀刻停止衬垫，例如HfO 2，防止在形成接触期间相邻栅极结构的侵蚀。

公开(公告)号：US20160190303A1

公开(公告)日：2016-06-30

申请号：US14588116

申请日：2014-12-31

Applicant: STMICROELECTRONICS, INC. ,  INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Qing LIU ,  Hong HE ,  Bruce DORIS

IPC: H01L29/78 ,  H01L29/08 ,  H01L27/12 ,  H01L21/762 ,  H01L21/02 ,  H01L21/225 ,  H01L29/06 ,  H01L29/165

CPC classification number: H01L21/76283 ,  H01L21/02164 ,  H01L21/0217 ,  H01L21/02532 ,  H01L21/2254 ,  H01L21/76224 ,  H01L21/823431 ,  H01L27/0886 ,  H01L27/1211 ,  H01L29/0649 ,  H01L29/0847 ,  H01L29/1054 ,  H01L29/165 ,  H01L29/66795 ,  H01L29/7848 ,  H01L29/785 ,  H01L2029/7858

Abstract: A method of making a structurally stable SiGe-on-insulator FinFET employs a silicon nitride liner to prevent de-stabilizing oxidation at the base of a SiGe fin. The silicon nitride liner blocks access of oxygen to the lower corners of the fin to facilitate fabrication of a high-concentration SiGe fin. The silicon nitride liner is effective as an oxide barrier even if its thickness is less than about 5 nm. Use of the SiN liner provides structural stability for fins that have higher germanium content, in the range of 25-55% germanium concentration.

Abstract translation: 制造结构稳定的绝缘体上的FinFET的方法使用氮化硅衬垫来防止在SiGe鳍的基底处的去稳定化氧化。 氮化硅衬垫阻止氧气进入翅片的下角，以便制造高浓度SiGe翅片。 氮化硅衬垫即使其厚度小于约5nm也是有效的。 使用SiN衬垫为具有较高锗含量，在25-55％锗浓度范围内的翅片提供结构稳定性。

公开(公告)号：US20160181390A1

公开(公告)日：2016-06-23

申请号：US14581857

申请日：2014-12-23

Applicant: STMICROELECTRONICS, INC. ,  GLOBALFOUNDRIES INC. ,  INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Qing LIU ,  Xiuyu CAI ,  Chun-chen YEH ,  Ruilong XIE

IPC: H01L29/49 ,  H01L29/66 ,  H01L29/45 ,  H01L29/417 ,  H01L29/51 ,  H01L21/311 ,  H01L29/78 ,  H01L29/40

CPC classification number: H01L29/45 ,  H01L21/76816 ,  H01L23/481 ,  H01L23/485 ,  H01L23/5226 ,  H01L23/53238 ,  H01L23/53257 ,  H01L23/53266 ,  H01L23/535 ,  H01L23/5386 ,  H01L29/401 ,  H01L29/517 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/7851

Abstract: The present disclosure is directed to a device and method for reducing the resistance of the middle of the line in a transistor. The transistor has electrical contacts formed above, and electrically connected to, the gate, drain and source. The electrical contact connected to the gate includes a tungsten contact member deposited over the gate, and a copper contact deposited over the tungsten contact member. The electrical contacts connected to the drain and source include tungsten portions deposited over the drain and source regions, and copper contacts deposited over the tungsten portions.

Abstract translation: 本公开涉及一种用于降低晶体管中线的电阻的装置和方法。 晶体管具有形成在栅极，漏极和源极上方并电连接的电触点。 连接到栅极的电触点包括沉积在栅极上的钨接触构件和沉积在钨接触构件上的铜触点。 连接到漏极和源极的电触头包括沉积在漏极和源极区域上的钨部分，以及沉积在钨部分上的铜触点。

公开(公告)号：US20160035843A1

公开(公告)日：2016-02-04

申请号：US14782190

申请日：2013-04-03

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERIGES ALTERNATIVES ,  STMICROELECTRONICS INC

Inventor： Maud VINET ,  Laurent GRENOUILLET ,  Qing LIU

IPC: H01L29/417 ,  H01L21/311 ,  H01L29/06 ,  H01L21/32 ,  H01L21/84 ,  H01L29/66

CPC classification number: H01L29/41783 ,  H01L21/31133 ,  H01L21/32 ,  H01L21/823814 ,  H01L21/823864 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/0653 ,  H01L29/6656

Abstract: A method for manufacturing a microelectronic device with transistors of different types having raised source and drain regions and different overlap regions.

Abstract translation: 一种用于制造具有不同类型的具有升高的源极和漏极区域以及不同重叠区域的晶体管的微电子器件的方法。

公开(公告)号：US20150357439A1

公开(公告)日：2015-12-10

申请号：US14295618

申请日：2014-06-04

Applicant: STMICROELECTRONICS, INC. ,  GLOBALFOUNDRIES INC. ,  INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Qing LIU ,  Ruilong XIE ,  Xiuyu CAI ,  Chun-chen YEH

IPC: H01L29/66 ,  H01L29/06 ,  H01L21/762 ,  H01L29/78

CPC classification number: H01L29/66795 ,  H01L21/76224 ,  H01L21/823431 ,  H01L29/0649 ,  H01L29/6681 ,  H01L29/785

Abstract: A method for making a semiconductor device may include forming, above a substrate, a plurality of laterally spaced-apart semiconductor fins, and forming regions of a first dielectric material between the laterally spaced-apart semiconductor fins. The method may further include selectively removing at least one intermediate semiconductor fin from among the plurality of semiconductor fins to define at least one trench between corresponding regions of the first dielectric material, and forming a region of a second dielectric material different than the first dielectric in the at least one trench to provide at least one isolation pillar between adjacent semiconductor fins.

Abstract translation: 制造半导体器件的方法可以包括在衬底之上形成多个横向间隔开的半导体鳍片，以及在横向间隔开的半导体鳍片之间形成第一电介质材料的区域。 该方法还可以包括：从多个半导体鳍片中选择性地移除至少一个中间半导体鳍片，以限定第一介电材料的相应区域之间的至少一个沟槽，以及形成与第一电介质不同的第二电介质材料的区域 所述至少一个沟槽用于在相邻的半导体鳍片之间提供至少一个隔离柱。

公开(公告)号：US20150357243A1

公开(公告)日：2015-12-10

申请号：US14296818

申请日：2014-06-05

Applicant: STMICROELECTRONICS. INC. ,  GLOBALFOUNDRIES Inc. ,  INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Qing LIU ,  Xiuyu CAl ,  Ruilong XIE ,  Chun-chen YEH

IPC: H01L21/8238 ,  H01L27/12 ,  H01L29/08 ,  H01L27/092

CPC classification number: H01L21/823807 ,  H01L21/76895 ,  H01L21/823814 ,  H01L21/823871 ,  H01L21/823878 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/0847 ,  H01L29/7842 ,  H01L29/7848 ,  H01L29/786 ,  H01L29/78684

Abstract: A method for making a semiconductor device is provided. Raised source and drain regions are formed with a tensile strain-inducing material, after thermal treatment to form source drain extension regions, to thereby preserve the strain-inducing material in desired substitutional states.

Abstract translation: 提供一种制造半导体器件的方法。 在热处理之后，用拉伸应变诱导材料形成凸起的源极和漏极区域以形成源极漏极延伸区域，从而将应变诱导材料保持在期望的替代状态。

公开(公告)号：US20150115370A1

公开(公告)日：2015-04-30

申请号：US14068340

申请日：2013-10-31

Applicant: GLOBALFOUNDRIES Inc. ,  STMicroelectronics, Inc.

Inventor： Qing LIU ,  Ruilong Xie ,  Hyun-Jin Cho

IPC: H01L27/088 ,  H01L29/161 ,  H01L29/06 ,  H01L21/8234

CPC classification number: H01L27/0886 ,  H01L21/823431 ,  H01L29/0649 ,  H01L29/161 ,  H01L29/66795 ,  H01L29/785

Abstract: A method for making a semiconductor device may include forming a first semiconductor layer on a substrate comprising a first semiconductor material, forming a second semiconductor layer on the first semiconductor layer comprising a second semiconductor material, and forming mask regions on the second semiconductor layer and etching through the first and second semiconductor layers to define a plurality of spaced apart pillars on the substrate. The method may further include forming an oxide layer laterally surrounding the pillars and mask regions, and removing the mask regions and forming inner spacers on laterally adjacent corresponding oxide layer portions atop each pillar. The method may additionally include etching through the second semiconductor layer between respective inner spacers to define a pair of semiconductor fins of the second semiconductor material from each pillar, and removing the inner spacers and forming an oxide beneath each semiconductor fin.

Abstract translation: 制造半导体器件的方法可以包括在包括第一半导体材料的衬底上形成第一半导体层，在包括第二半导体材料的第一半导体层上形成第二半导体层，以及在第二半导体层上形成掩模区域和蚀刻 通过第一和第二半导体层在衬底上限定多个间隔开的柱。 该方法可以进一步包括在横向围绕柱和掩模区域形成氧化物层，以及去除掩模区域并在横向相邻的每个柱顶上相应的氧化物层部分上形成内部间隔物。 该方法还可以包括通过相应的内部间隔物之间​​的第二半导体层进行蚀刻，以从每个支柱形成第二半导体材料的一对半导体鳍片，以及去除内部间隔物并在每个半导体鳍片之下形成氧化物。