Patent application number | Description | Published |
20130207166 | Methods and Apparatus for Doped SiGe Source/Drain Stressor Deposition - A semiconductor device system, structure and method of manufacture of a source/drain with SiGe stressor material to address effects due to dopant out-diffusion are disclosed. In an embodiment, a semiconductor substrate is provided with a gate structure, and recesses for source and drain are formed on opposing sides of the gate structure. Doped stressors are embedded into the recessed source and drain regions, and a plurality of layers of undoped stressor, lightly doped stressor, highly doped stressor, and a cap layer are formed in an in-situ epitaxial process. In another embodiment the doped stressor material is boron doped epitaxial SiGe. In an alternative embodiment an additional layer of undoped stressor material is formed. | 08-15-2013 |
20130328127 | SiGe SRAM BUTTED CONTACT RESISTANCE IMPROVEMENT - The present disclosure relates to a device and method for fabricating a semiconductor memory device arrangement comprising a butted a contact arrangement configured to couple two transistors, wherein an active area of a first transistor is coupled to an active gate of a second transistor. The active gate of the second transistor is formed from a gate material which comprises a dummy gate of the first transistor, and is configured to straddle a boundary between the active area of the first transistor and an isolation layer formed about the first transistor. The butted a contact arrangement results in a decreased contact resistance for the butted contact as compared to previous methods. | 12-12-2013 |
20140054716 | SRAM Cells with Dummy Insertions - A device includes a first pull-up transistor, a second pull-up transistor, and a dummy gate electrode between the first and the second pull-up transistors. The first and the second pull-up transistors are included in a first Static Random Access Memory (SRAM) cell. | 02-27-2014 |
20140117512 | SURFACE PROFILE FOR SEMICONDUCTOR REGION - One or more techniques or systems for controlling a profile of a surface of a semiconductor region are provided herein. In some embodiments, an etching to deposition (E/D) ratio is set to be less than one to form the region within the semiconductor. For example, when the E/D ratio is less than one, an etching rate is less than a deposition rate of the E/D ratio, thus ‘growing’ the region. In some embodiments, the E/D ratio is subsequently set to be greater than one. For example, when the E/D ratio is greater than one, the etching rate is greater than the deposition rate of the E/D ratio, thus ‘etching’ the region. In this manner, a smooth surface profile is provided for the region, at least because setting the E/D ratio to be greater than one enables etch back of at least a portion of the grown region. | 05-01-2014 |
20140175556 | SEMICONDUCTOR DEVICE HAVING V-SHAPED REGION - Among other things, a semiconductor device or transistor and a method for forming the semiconductor device are provided for herein. The semiconductor device comprises one or more v-shaped recesses in which stressed monocrystalline semiconductor material, such as silicon germanium, is grown, to form at least one of a source or a drain of the semiconductor device. The one or more v-shaped recesses are etched into a substrate in-situ. The semiconductor device comprises at least one of a source or a drain having a height-to-length ratio exceeding at least 1.6 when poly spacing between a first part of the semiconductor device (e.g., first transistor) and a second part of the semiconductor device (e.g., second transistor) is less than about 60 nm. | 06-26-2014 |
20140264440 | V-SHAPED SIGE RECESS VOLUME TRIM FOR IMPROVED DEVICE PERFORMANCE AND LAYOUT DEPENDENCE - Some embodiments of the present disclosure relates to a method and a device to achieve a strained channel. A volume of a source or drain recess is controlled by a performing an etch of a substrate to produce a recess. An anisotropic etch stop layer is then formed by doping a bottom surface of the recess with a boron-containing dopant, which distorts the crystalline structure of the bottom surface. An anisotropic etch of the recess is then performed. The anisotropic etch stop layer resists anisotropic etching such that the recess comprises a substantially flat bottom surface after the anisotropic etch. The source or drain recess is then filled with a stress-inducing material to produce a strained channel. | 09-18-2014 |
20140295630 | SiGe SRAM BUTTED CONTACT RESISTANCE IMPROVEMENT - The present disclosure relates to a method for fabricating a butted a contact arrangement configured to couple two transistors, wherein an active region of a first transistor is coupled to a gate of a second transistor. The gate of the second transistor is formed from a gate material which comprises a dummy gate of the first transistor, and is configured to straddle a boundary between the active region of the first transistor and an isolation layer formed about the first transistor. The butted a contact arrangement results in a decreased contact resistance for the butted contact as compared to previous methods. | 10-02-2014 |
20150137182 | SEMICONDUCTOR DEVICE HAVING V-SHAPED REGION - Among other things, a semiconductor device or transistor and a method for forming the semiconductor device are provided for herein. The semiconductor device comprises one or more v-shaped recesses in which stressed monocrystalline semiconductor material, such as silicon germanium, is grown, to form at least one of a source or a drain of the semiconductor device. The one or more v-shaped recesses are etched into a substrate in-situ. The semiconductor device comprises at least one of a source or a drain having a height-to-length ratio exceeding at least 1.6 when poly spacing between a first part of the semiconductor device (e.g., first transistor) and a second part of the semiconductor device (e.g., second transistor) is less than about 60 nm. | 05-21-2015 |