Patents by Inventor Ta-Wei Wang
Ta-Wei Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090109799Abstract: A method for displaying a calendar for browsing digital images is disclosed. The method includes generating data for each of a plurality of digital image files captured by the camera module, wherein the data are stored in an image file list. A selected calendar month of the calendar is read and a date of a day in the calendar month is read. The read date listed in the image file list in the calendar is highlighted. The highlighted calendar of the calendar month is displayed. A related system is also provided.Type: ApplicationFiled: September 9, 2008Publication date: April 30, 2009Applicant: CHI MEI COMMUNICATION SYSTEMS, INC.Inventor: Ta-Wei Wang
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Publication number: 20090090935Abstract: A semiconductor device includes a gate, which comprises a gate electrode and a gate dielectric underlying the gate electrode, a spacer formed on a sidewall of the gate electrode and the gate dielectric, a buffer layer having a first portion underlying the gate dielectric and the spacer and a second portion adjacent the spacer wherein the top surface of the second portion of the buffer layer is recessed below the top surface of the first portion of the buffer layer, and a source/drain region substantially aligned with the spacer. The buffer layer preferably has a greater lattice constant than an underlying semiconductor substrate. The semiconductor device may further include a semiconductor-capping layer between the buffer layer and the gate dielectric, wherein the semiconductor-capping layer has a smaller lattice constant then the buffer layer.Type: ApplicationFiled: December 9, 2008Publication date: April 9, 2009Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chih-Hao Wang, Shang-Chih Chen, Ching-Wei Tsai, Ta-Wei Wang, Pang-Yen Tsai
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Patent number: 7465972Abstract: A semiconductor device includes a gate, which comprises a gate electrode and a gate dielectric underlying the gate electrode, a spacer formed on a sidewall of the gate electrode and the gate dielectric, a buffer layer having a first portion underlying the gate dielectric and the spacer and a second portion adjacent the spacer wherein the top surface of the second portion of the buffer layer is recessed below the top surface of the first portion of the buffer layer, and a source/drain region substantially aligned with the spacer. The buffer layer preferably has a greater lattice constant than an underlying semiconductor substrate. The semiconductor device may further include a semiconductor-capping layer between the buffer layer and the gate dielectric, wherein the semiconductor-capping layer has a smaller lattice constant then the buffer layer.Type: GrantFiled: April 27, 2005Date of Patent: December 16, 2008Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Hao Wang, Shang-Chih Chen, Ching-Wei Tsai, Ta-Wei Wang, Pang-Yen Tsai
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Publication number: 20080305590Abstract: An integrated circuit having high performance CMOS devices with good short channel effects may be made by forming a gate structure over a substrate; forming pocket implant regions and source/drain extensions in the substrate; forming spacers along sides of the gate structure; and thermal annealing the substrate when forming the spacers, the thermal annealing performed at an ultra-low temperature. An integrated circuit having high performance CMOS devices with low parasitic junction capacitance may be made by forming a gate structure over a substrate; forming pocket implant regions and source/drain extensions in the substrate; forming spacers along sides of the gate structure; performing a low dosage source/drain implant; and performing a high dosage source/drain implant.Type: ApplicationFiled: August 14, 2008Publication date: December 11, 2008Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chih-Hao Wang, Ta-Wei Wang, Chenming Hu
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Publication number: 20080087892Abstract: A MOS transistor having a highly stressed channel region and a method for forming the same are provided. The method includes forming a first semiconductor plate over a semiconductor substrate, forming a second semiconductor plate on the first semiconductor plate wherein the first semiconductor plate has a substantially greater lattice constant than the second semiconductor plate, and forming a gate stack over the first and the second semiconductor plates. The first and the second semiconductor plates include extensions extending substantially beyond side edges of the gate stack. The method further includes forming a silicon-containing layer on the semiconductor substrate, preferably spaced apart from the first and the second semiconductor plates, forming a spacer, a LDD region and a source/drain region, and forming a silicide region and a contact etch stop layer. A high stress is developed in the channel region. Current crowding effects are reduced due to the raised silicide region.Type: ApplicationFiled: December 5, 2007Publication date: April 17, 2008Inventors: Chih-Hao Wang, Ching-Wei Tsai, Ta-Wei Wang
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Publication number: 20080054301Abstract: A strained channel transistor can be provided by combining a stressor positioned in the channel region with stressors positioned on opposite sides of the channel region. This produces increased strain in the channel region, resulting in correspondingly enhanced transistor performance.Type: ApplicationFiled: August 29, 2006Publication date: March 6, 2008Inventors: Chih-Hao Wang, Ching-Wei Tsai, Ta-Wei Wang
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Patent number: 7323392Abstract: A MOS transistor having a highly stressed channel region and a method for forming the same are provided. The method includes forming a first semiconductor plate over a semiconductor substrate, forming a second semiconductor plate on the first semiconductor plate wherein the first semiconductor plate has a substantially greater lattice constant than the second semiconductor plate, and forming a gate stack over the first and the second semiconductor plates. The first and the second semiconductor plates include extensions extending substantially beyond side edges of the gate stack. The method further includes forming a silicon-containing layer on the semiconductor substrate, preferably spaced apart from the first and the second semiconductor plates, forming a spacer, a LDD region and a source/drain region, and forming a silicide region and a contact etch stop layer. A high stress is developed in the channel region. Current crowding effects are reduced due to the raised silicide region.Type: GrantFiled: March 28, 2006Date of Patent: January 29, 2008Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Hao Wang, Ching-Wei Tsai, Ta-Wei Wang
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Patent number: 7320921Abstract: A method of making an integrated circuit chip is provided, which combines a smart grading implant with a diffusion retarding implant, e.g., to improve short channel effect controllability and improve dopant grading in the source/drain regions. Using a smart grading implant, a relatively low-energy high-dose implant is performed before a relatively low-energy high-dose implant. Hence, a relatively high-energy low-dose implant of ions is performed into a source/drain region of a substrate. A diffusion retarding implant is performed into the source/drain region of the substrate. Then after performing the high-energy low-dose implant and the diffusion retarding implant (together, overlapping, or separately), a relatively low-energy high-dose implant of ions is performed into the source/drain region of the substrate.Type: GrantFiled: March 22, 2005Date of Patent: January 22, 2008Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Hao Wang, Ta-Wei Wang
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Publication number: 20070231999Abstract: A MOS transistor having a highly stressed channel region and a method for forming the same are provided. The method includes forming a first semiconductor plate over a semiconductor substrate, forming a second semiconductor plate on the first semiconductor plate wherein the first semiconductor plate has a substantially greater lattice constant than the second semiconductor plate, and forming a gate stack over the first and the second semiconductor plates. The first and the second semiconductor plates include extensions extending substantially beyond side edges of the gate stack. The method further includes forming a silicon-containing layer on the semiconductor substrate, preferably spaced apart from the first and the second semiconductor plates, forming a spacer, a LDD region and a source/drain region, and forming a silicide region and a contact etch stop layer. A high stress is developed in the channel region. Current crowding effects are reduced due to the raised silicide region.Type: ApplicationFiled: March 28, 2006Publication date: October 4, 2007Inventors: Chih-Hao Wang, Ching-Wei Tsai, Ta-Wei Wang
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Patent number: 7268362Abstract: A preferred embodiment of the invention comprises a semiconductor device having stress in the source/drain channel. The device comprises a substrate having a lattice constant greater than or equal to silicon and a first layer on the substrate, wherein the first layer has a lattice constant greater than the substrate. Alternative embodiments include a second layer formed on the first layer. The second layer has a lattice constant less than the first layer. Preferably, the second layer underlies a gate electrode and at least a portion of a sidewall spacer. Still other embodiments include a recess for inducing stress in the source/drain channel.Type: GrantFiled: February 25, 2005Date of Patent: September 11, 2007Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Hao Wang, Ta-Wei Wang
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Patent number: 7253481Abstract: A semiconductor device suffering fewer current crowding effects and a method of forming the same are provided. The semiconductor device includes a substrate, a gate over the substrate, a gate spacer along an edge of the gate and overlying a portion of the substrate, a diffusion region in the substrate wherein the diffusion region comprises a first portion and a second portion between the first portion and the gate spacer. The first portion of the diffusion region has a recessed top surface. The semiconductor device further includes a silicide layer on the diffusion region, and a cap layer over at least the silicide layer. The cap layer provides a strain to the channel region of the semiconductor device.Type: GrantFiled: July 14, 2005Date of Patent: August 7, 2007Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Hao Wang, Ta-Wei Wang, Ching-Wei Tsai
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Publication number: 20070173022Abstract: MOSFET transistors having localized stressors for improving carrier mobility are provided. Embodiments of the invention comprise a gate electrode formed over a substrate, a carrier channel region in the substrate under the gate electrode, and source/drain regions on either side of the carrier channel region. The source/drain regions include an embedded stressor having a lattice constant different from the substrate. In a preferred embodiment, the substrate is silicon and the embedded stressor is SiGe. Implanting a portion of the source/drain regions with Ge forms the embedded stressor. Implanting carbon into the source/drain regions and annealing the substrate after implanting the carbon suppresses dislocation formation, thereby improving device performance.Type: ApplicationFiled: February 24, 2006Publication date: July 26, 2007Inventors: Chih-Hao Wang, Shih-Hsieng Huang, Ta-Wei Wang
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Publication number: 20070034906Abstract: A MOS device having reduced recesses under a gate spacer and a method for forming the same are provided. The MOS device includes a gate structure overlying the substrate, a sidewall spacer on a sidewall of the gate structure, a recessed region having a recess depth of substantially less than about 30 ? underlying the sidewall spacer, and a silicon alloy region having at least a portion in the substrate and adjacent the recessed region. The silicon alloy region has a thickness of substantially greater than about 30 nm. A shallow recess region is achieved by protecting the substrate when a hard mask on the gate structure is removed. The MOS device is preferably a pMOS device.Type: ApplicationFiled: December 27, 2005Publication date: February 15, 2007Inventors: Chih-Hao Wang, Ta-Wei Wang
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Publication number: 20070013010Abstract: A semiconductor device suffering fewer current crowding effects and a method of forming the same are provided. The semiconductor device includes a substrate, a gate over the substrate, a gate spacer along an edge of the gate and overlying a portion of the substrate, a diffusion region in the substrate wherein the diffusion region comprises a first portion and a second portion between the first portion and the gate spacer. The first portion of the diffusion region has a recessed top surface. The semiconductor device further includes a silicide layer on the diffusion region, and a cap layer over at least the silicide layer. The cap layer provides a strain to the channel region of the semiconductor device.Type: ApplicationFiled: July 14, 2005Publication date: January 18, 2007Inventors: Chih-Hao Wang, Ta-Wei Wang, Ching-Wei Tsai
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Publication number: 20060216900Abstract: A method of making an integrated circuit chip is provided, which combines a smart grading implant with a diffusion retarding implant, e.g., to improve short channel effect controllability and improve dopant grading in the source/drain regions. Using a smart grading implant, a relatively low-energy high-dose implant is performed before a relatively low-energy high-dose implant. Hence, a relatively high-energy low-dose implant of ions is performed into a source/drain region of a substrate. A diffusion retarding implant is performed into the source/drain region of the substrate. Then after performing the high-energy low-dose implant and the diffusion retarding implant (together, overlapping, or separately), a relatively low-energy high-dose implant of ions is performed into the source/drain region of the substrate.Type: ApplicationFiled: March 22, 2005Publication date: September 28, 2006Inventors: Chih-Hao Wang, Ta-Wei Wang
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Publication number: 20060194387Abstract: A preferred embodiment of the invention comprises a semiconductor device having stress in the source/drain channel. The device comprises a substrate having a lattice constant greater than or equal to silicon and a first layer on the substrate, wherein the first layer has a lattice constant greater than the substrate. Alternative embodiments include a second layer formed on the first layer. The second layer has a lattice constant less than the first layer. Preferably, the second layer underlies a gate electrode and at least a portion of a sidewall spacer. Still other embodiments include a recess for inducing stress in the source/drain channel.Type: ApplicationFiled: February 25, 2005Publication date: August 31, 2006Inventors: Chih-Hao Wang, Ta-Wei Wang
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Publication number: 20060163672Abstract: A semiconductor device includes a gate, which comprises a gate electrode and a gate dielectric underlying the gate electrode, a spacer formed on a sidewall of the gate electrode and the gate dielectric, a buffer layer having a first portion underlying the gate dielectric and the spacer and a second portion adjacent the spacer wherein the top surface of the second portion of the buffer layer is recessed below the top surface of the first portion of the buffer layer, and a source/drain region substantially aligned with the spacer. The buffer layer preferably has a greater lattice constant than an underlying semiconductor substrate. The semiconductor device may further include a semiconductor-capping layer between the buffer layer and the gate dielectric, wherein the semiconductor-capping layer has a smaller lattice constant then the buffer layer.Type: ApplicationFiled: April 27, 2005Publication date: July 27, 2006Inventors: Chih-Hao Wang, Shang-Chih Chen, Ching-Wei Tsai, Ta-Wei Wang, Pang-Yen Tsai
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Publication number: 20060131672Abstract: A MOSFET having a nitrided gate dielectric and its manufacture are disclosed. The method comprises providing a substrate and depositing a non-high-k dielectric material on the substrate. The non-high-k dielectric comprises two layers. The first layer adjacent the substrate is essentially nitrogen-free, and the second layer includes between about 1015 atoms/cm3 to about 1022 atoms/cm3 nitrogen. The MOSFET further includes a high-k dielectric material on the nitrided, non-high-k dielectric. The high-k dielectric preferably includes HfSiON, ZrSiON, or nitrided Al2O3. Embodiments further include asymmetric manufacturing techniques wherein core and peripheral integrated circuit areas are separately optimized.Type: ApplicationFiled: April 27, 2005Publication date: June 22, 2006Inventors: Chih-Hao Wang, Ta-Wei Wang, Shang-Chih Chen, Ching-Wei Tsai
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Publication number: 20060113591Abstract: An integrated circuit having high performance CMOS devices with good short channel effects may be made by forming a gate structure over a substrate; forming pocket implant regions and source/drain extensions in the substrate; forming spacers along sides of the gate structure; and thermal annealing the substrate when forming the spacers, the thermal annealing performed at an ultra-low temperature. An integrated circuit having high performance CMOS devices with low parasitic junction capacitance may be made by forming a gate structure over a substrate; forming pocket implant regions and source/drain extensions in the substrate; forming spacers along sides of the gate structure; performing a low dosage source/drain implant; and performing a high dosage source/drain implant.Type: ApplicationFiled: November 30, 2004Publication date: June 1, 2006Inventors: Chih-Hao Wan, Ta-Wei Wang, Chenming Hu
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Publication number: 20050150671Abstract: A turbine motor for a pneumatic tool, comprising a casing, a rotor and an axis. Compressed air enters the casing through an inlet and is directed towards blades of the rotor in a radial direction, so that torque is exerted on the axis. The blades of the rotors are to a large part hit by compressed air, each for an extended time, so that high effectivity and good efficiency result, allowing for operation at high speed and under high load.Type: ApplicationFiled: April 21, 2004Publication date: July 14, 2005Inventors: Chii-Ron Kuo, Jia-Ruey Wu, Chia-Yang Chang, Ta-Wei Wang, Jung-Huang Liao