Patents Assigned to Taiwan Semiconductor Manufacturing Company, Ltd.
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Patent number: 7561462Abstract: An architecture, circuit and method for providing a high speed operation DRAM memory with reduced cell disturb. A DRAM global bit line select circuit couples a pair of local bit lines and the associated sense amplifier to the global bit lines using a circuit optimized for high speed operation. The select circuit and method also reduces or eliminates the bit line disturb effect of the prior art. The circuit and architecture of the DRAM incorporating the select circuit is particularly useful for embedding DRAM memory with other logic in an integrated circuit. For a read operation the select circuit discharges the appropriate global bit line directly to ground thus speeding the read cycles. For a write operation, a dedicated control line is used to couple write data to from the global bit lines to the selected local bit lines. Methods for operating the DRAM and the select circuits are disclosed.Type: GrantFiled: May 29, 2007Date of Patent: July 14, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Kuoyuan (Peter) Hsu
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Patent number: 7560785Abstract: A semiconductor device having multiple fin heights is provided. Multiple fin heights are provided by using multiple masks to recess a dielectric layer within a trench formed in a substrate. In another embodiment, an implant mold or e-beam lithography are utilized to form a pattern of trenches in a photoresist material. Subsequent etching steps form corresponding trenches in the underlying substrate. In yet another embodiment, multiple masking layers are used to etch trenches of different heights separately. A dielectric region may be formed along the bottom of the trenches to isolate the fins by performing an ion implant and a subsequent anneal.Type: GrantFiled: April 27, 2007Date of Patent: July 14, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chen-Hua Yu, Chen-Nan Yeh, Yu-Rung Hsu
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Publication number: 20090174003Abstract: A method for manufacturing a dual work function semiconductor device is disclosed. In one aspect, the method relates to providing a substrate with a first and a second region. A gate dielectric is formed overlying the first and the second region. A metal gate layer is formed overlying the gate dielectric on the first and the second region. The metal gate layer has a first (as-deposited) work function that can be modified upon inducing strain thereon. The method further relates to selecting a first strain which induces a first pre-determined work function shift (?WF1) in the first (as-deposited) work function of the metal gate layer on the first region and selectively forming a first strained conductive layer overlying the metal gate layer on the first region, the first strained conductive layer exerting the selected first strain on the metal gate layer.Type: ApplicationFiled: November 12, 2008Publication date: July 9, 2009Applicants: Interuniversitair Microelektronica Centrum vzw (IMEC), Taiwan Semiconductor Manufacturing Company, Ltd. (TSMC)Inventors: Shou-Zen Chang, Thomas Y. Hoffman, Geoffrey Pourtois, Hong Yu Yu
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Patent number: 7557665Abstract: A temperature-dependent oscillator includes a first current source, wherein a first current provided by the first current source has a positive temperature coefficient, a second current source serially connected to the first current source, wherein a second current provided by the second current source has a negative temperature coefficient, and a capacitor serially connected to the first current source and parallel connected to the second current source.Type: GrantFiled: March 13, 2007Date of Patent: July 7, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shine Chung, Jonathan Hung
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Patent number: 7557402Abstract: An embedded flash cell structure comprising a structure, a first floating gate having an exposed side wall over the structure, a second floating gate having an exposed side wall over the structure and spaced apart from the first floating gate, a first pair of spacers over the respective first floating gate and the second floating gate, a second pair of spacers at least over the respective exposed side walls of the first and second floating gates, a source area in the structure between the second pair of spacers, a plug over the source implant, and first and second control gates outboard of the first pair of spacers and exposing outboard portions of the structure and respective drain areas in the exposed outboard portions of the structure is provided. A method of forming the embedded flash cell structure is also provided.Type: GrantFiled: November 15, 2006Date of Patent: July 7, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Der-Shin Shyu, Hung-Cheng Sung, Chen-Ming Huang
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Patent number: 7557642Abstract: A system and a method is disclosed for allowing bandgap circuitry to function on a low supply voltage integrated circuit, and for using the reference voltage (Vbg) generated by the bandgap circuitry to enable a reference voltage to control system voltage. An illustrative embodiment comprises a charge pump to raise a supply voltage to a system voltage, and an open loop controller, which provides a first signal to activate the charge pump, enabling a bandgap circuit, which outputs a bandgap voltage reference. Further, the system comprises a closed loop controller, which regulates the system voltage by comparing the system voltage to the bandgap reference voltage. Upon the system voltage falling below a target voltage, the closed loop controller provides a second signal to activate the charge pump. Additionally the system comprises a switch controller, which selects the closed loop controller upon sensing the bandgap circuit is active.Type: GrantFiled: August 27, 2007Date of Patent: July 7, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuoyuan (Peter) Hsu, Maofeng Len
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Patent number: 7557449Abstract: An integrated circuit includes a metallization layer, a first metal line in the metallization layer, and a first via electrically connected to the first metal line. The first via has a first via width and a first pitch from a nearest via on a neighboring metal line, wherein the first pitch is a minimum pitch of all vias on the metallization layer. The integrated circuit further includes a second metal line in the metallization layer, and a second via electrically connected to the second metal line. The second via has a second pitch greater than about 1.1 times the first pitch. The second via has a second via width greater than the first via width but no more than about 1.4 times the first via width.Type: GrantFiled: September 7, 2006Date of Patent: July 7, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Chung-Shi Liu
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Patent number: 7557399Abstract: A metal-insulator-metal (MIM) capacitor is provided. The bottom electrode of the MIM capacitor is electrically connected to a connection node. The connection node may be, for example, a contact formed in an interlayer dielectric, a polysilicon connection node, a doped polysilicon or silicon region, or the like. A contact provides an electrical connection between the connection node and components formed above the connection node. A second contact provides an electrical connection to the top electrode.Type: GrantFiled: February 8, 2007Date of Patent: July 7, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Kuo-Chi Tu, Wai-Yi Lien
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Patent number: 7554110Abstract: A semiconductor structure includes a semiconductor substrate having a first lattice constant; a gate dielectric on the semiconductor substrate; a gate electrode on the semiconductor substrate; and a stressor having at least a portion in the semiconductor substrate and adjacent the gate electrode. The stressor has a tilted sidewall on a side adjacent the gate electrode. The stressor includes a first stressor layer having a second lattice constant substantially different from the first lattice constant; and a second stressor layer on the first stressor layer, wherein the second stressor has a third lattice constant substantially different from the first and the second lattice constants.Type: GrantFiled: April 3, 2007Date of Patent: June 30, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ming-Hua Yu, Mong-Song Liang, Tze-Liang Lee, Jr-Hung Li
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Patent number: 7553736Abstract: A method for increasing capacitances of capacitors and the resulting integrated structure are provided. The method includes providing a substrate, forming a low-k dielectric layer over the substrate wherein the low-k dielectric layer includes a capacitor region and a non-capacitor region, forming a capacitor in the capacitor region, forming a masking layer which masks the non-capacitor region while leaving the capacitor region exposed, performing a local treatment to increase a k value of the low-k dielectric layer in the capacitor region, and removing the masking layer.Type: GrantFiled: July 13, 2006Date of Patent: June 30, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsien-Wei Chen, Hao-Yi Tsai, Hsueh-Chung Chen
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Publication number: 20090160061Abstract: The present disclosure provide an integrated circuit. The integrated circuit includes a through-silicon-via (TSV) trench configured in a semiconductor substrate; a conductive pad formed on the semiconductor substrate, the conductive pad being adjacent the TSV trench; a silicon nitride layer disposed over the conductive pad and in the TSV trench; a titanium layer disposed on the silicon nitride layer; a titanium nitride layer disposed on the titanium layer; and a copper layer disposed on the titanium nitride layer.Type: ApplicationFiled: September 8, 2008Publication date: June 25, 2009Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Kuo-Ching Hsu, Chen-Shien Chen, Boe Su, Hon-Lin Huang
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Publication number: 20090155965Abstract: Provided is a method that includes forming a first semiconductor layer on a semiconductor substrate, growing a second semiconductor layer on the first semiconductor layer, forming composite shapes on the first semiconductor layer, each composite shape comprising of an overlying oxide-resistant shape and an underlying second semiconductor shape, with portions of the first semiconductor layer exposed between the composite shapes, forming spacers on sides of the composite shapes, forming buried silicon oxide regions in exposed top portions of the first semiconductor layer, and in portions of the first semiconductor layer located underlying second semiconductor shapes, selectively removing the oxide-resistant shapes and spacers resulting in the second semiconductor shapes, and forming a semiconductor device in a second semiconductor shape wherein a first portion of the semiconductor device overlays the first semiconductor layer and wherein second portions of the semiconductor device overlays a buried silicon oxidType: ApplicationFiled: February 24, 2009Publication date: June 18, 2009Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Horng-Huei Tseng, Jhy-Chyum Guo, Chenming Hu, Da-Chi Lin
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Publication number: 20090152545Abstract: A method of measuring dimensional characteristics includes providing a substrate and forming a reflective layer over the substrate. A dielectric layer is then formed over the reflective layer. The dielectric layer includes a grating pattern and a resistivity test line inset in a transparent region. Radiation is then directed onto the dielectric layer so that some of the radiation is transmitted through the transparent region to the reflective layer. A radiation pattern is then detected from the radiation reflected and scattered by the metal grating pattern. The radiation pattern is analyzed to determine a first dimensional information. Then the resistance of the resistivity test line is measured, and that resistance is analyzed to determine a second dimensional information. The first and second dimensional informations are then compared.Type: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Ching-Chung Su, Yi-Wei Chiu, Tzu-Chan Weng, Yih Song Chiu, Pin Chia Su, Chih-Cherng Jeng, Kuo-Hsiu Wei
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Publication number: 20090146325Abstract: An apparatus and manufacturing method thereof, wherein an integrated circuit is located in a first region of a substrate having first and second opposing major surfaces, and wherein an alignment mark is located in a second region of the substrate and extends through the substrate between the first and second surfaces. The alignment mark may protrude from the first and/or second surfaces, and/or may comprise a plurality of substantially similar alignment marks. The second region may interpose the first region and a perimeter of the substrate. The second region may comprise a scribe region.Type: ApplicationFiled: December 6, 2007Publication date: June 11, 2009Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Jen-Cheng Liu, Dun-Nian Yaung, Shou-Gwo Wuu
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Patent number: 7545006Abstract: A semiconductor device includes a semiconductor substrate, a gate stack overlying the semiconductor substrate, a spacer on a sidewall of the gate stack, a lightly doped source/drain (LDD) region adjacent the gate stack, a deep source/drain region adjoining the LDD region, and a graded silicide region on the deep source/drain region and the LDD region. The graded silicide region includes a first portion having a first thickness and a second portion adjoining the first portion and having a second thickness substantially less than the first thickness. The second portion is closer to a channel region than the first portion.Type: GrantFiled: August 1, 2006Date of Patent: June 9, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hung-Ming Chen, Chien-Chao Huang, Fu-Liang Yang
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Patent number: 7544561Abstract: A semiconductor structure includes a PMOS device and an NMOS device. The PMOS device includes a first gate dielectric on a semiconductor substrate, a first gate electrode on the first gate dielectric, and a first gate spacer along sidewalls of the first gate electrode and the first gate dielectric. The NMOS device includes a second gate dielectric on the semiconductor substrate, a second gate electrode on the second gate dielectric, a nitrided polysilicon re-oxidation layer having a vertical portion and a horizontal portion wherein the vertical portion is on sidewalls of the second gate electrode and the second gate dielectric and wherein the horizontal portion is on the semiconductor substrate, and a second gate spacer on sidewalls of the second gate electrode and the second gate dielectric, wherein the second gate spacer is on the horizontal portion of the nitrided polysilicon re-oxidation layer.Type: GrantFiled: November 6, 2006Date of Patent: June 9, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wenli Lin, Da-Yuan Lee, Chi-Chun Chen, Shih-Chang Chen
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Patent number: 7544606Abstract: A method of forming a metal feature in a low-k dielectric layer is provided. The method includes forming an opening in a low-k dielectric layer, forming a metal layer having a substantially planar surface over the low-k dielectric layer using spin-on method, and stress free polishing the metal layer. Preferably, the metal layer comprises copper or copper alloys. The metal layer preferably includes a first sub layer having a substantially non-planar surface and a second sub layer having a substantially planar surface on the first sub layer.Type: GrantFiled: June 1, 2005Date of Patent: June 9, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Jean Wang, Chia-Ming Yang, Henry Lo, Joshua Tseng
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Patent number: 7544982Abstract: An image sensor device is provided. A substrate has a photosensor region formed therein and/or thereon. An interconnection structure is formed over the substrate, and includes metal lines formed in inter-metal dielectric (IMD) layers. At least one IMD-level micro-lens is/are formed in at least one of the IMD layers over the photosensor region. Preferably, barrier layers are located between the IMD layers. Preferably, each of the barrier layers at each level has a net thickness limited to 100 angstroms or less at locations over the photosensor region, except at locations where the IMD-level micro-lenses are located. The IMD-level micro-lenses and the etch stop layers preferably have a refractive index greater than that of the IMD layers. A cap layer is preferably formed on the metal lines, especially when the metal lines include copper. An upper-level micro-lens may be located on a level that is above the interconnection structure.Type: GrantFiled: October 3, 2006Date of Patent: June 9, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chung-Yi Yu, Chia-Shiung Tsai, Shih-Chi Fu
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Patent number: 7545022Abstract: A semiconductor device includes a first capacitor comprising a plurality of first unit capacitors interconnected to each other, each having a first unit capacitance; and a second capacitor comprising a plurality of second unit capacitors interconnected to each other, each having a second unit capacitance, wherein the first unit capacitors and the second unit capacitors have equal numbers of unit capacitors. The first unit capacitors and the second unit capacitors are arranged in an array with rows and columns and placed in an alternating pattern in each row and each column. The first and the second unit capacitors each have a total number greater than two.Type: GrantFiled: November 1, 2006Date of Patent: June 9, 2009Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chia-Yi Chen, Chung-Long Chang, Chih-Ping Chao
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Publication number: 20090142903Abstract: The present disclosure provides a bonding apparatus. The bonding apparatus includes a cleaning module designed for cleaning chips; and a chip-to-wafer bonding chamber configured to receive the chips from the cleaning module and designed for bonding the chips to a wafer.Type: ApplicationFiled: March 24, 2008Publication date: June 4, 2009Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chen-Hua Yu, Jui-Pin Hung, Weng-Jin Wu, Jean Wang, Wen-Chih Chiou