Patents by Inventor Chang-Chi Huang
Chang-Chi Huang 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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Patent number: 8461649Abstract: An opening structure is disclosed. The opening structure includes: a semiconductor substrate; at least one dielectric layer disposed on the semiconductor substrate, wherein the dielectric layer has a plurality of openings exposing the semiconductor substrate, and each of the openings has a sidewall; a dielectric thin film covering at least a portion of the sidewall of each of the openings; an etch stop layer disposed between the semiconductor substrate and the dielectric layer and extending partially into the openings to isolate the dielectric thin film from the semiconductor substrate; and a metal layer filled in the openings.Type: GrantFiled: September 16, 2011Date of Patent: June 11, 2013Assignee: United Microelectronics Corp.Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Feng-Yi Chang, Pei-Yu Chou, Jiunn-Hsiung Liao, Chih-Wen Feng, Ying-Chih Lin
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Patent number: 8164141Abstract: An opening structure includes a semiconductor substrate, at least one dielectric layer disposed on the semiconductor substrate, wherein the dielectric layer has a plurality of openings exposing the semiconductor substrate, and each of the openings has a sidewall, a dielectric thin film covering at least a portion of the sidewall of each of the openings, and a metal layer filled in the openings.Type: GrantFiled: September 17, 2010Date of Patent: April 24, 2012Assignee: United Microelectronics Corp.Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Feng-Yi Chang, Pei-Yu Chou, Jiunn-Hsiung Liao, Chih-Wen Feng, Ying-Chih Lin
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Publication number: 20120001338Abstract: An opening structure is disclosed. The opening structure includes: a semiconductor substrate; at least one dielectric layer disposed on the semiconductor substrate, wherein the dielectric layer has a plurality of openings exposing the semiconductor substrate, and each of the openings has a sidewall; a dielectric thin film covering at least a portion of the sidewall of each of the openings; an etch stop layer disposed between the semiconductor substrate and the dielectric layer and extending partially into the openings to isolate the dielectric thin film from the semiconductor substrate; and a metal layer filled in the openings.Type: ApplicationFiled: September 16, 2011Publication date: January 5, 2012Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Feng-Yi Chang, Pei-Yu Chou, Jiunn-Hsiung Liao, Chih-Wen Feng, Ying-Chih Lin
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Publication number: 20110006437Abstract: An opening structure includes a semiconductor substrate, at least one dielectric layer disposed on the semiconductor substrate, wherein the dielectric layer has a plurality of openings exposing the semiconductor substrate, and each of the openings has a sidewall, a dielectric thin film covering at least a portion of the sidewall of each of the openings, and a metal layer filled in the openings.Type: ApplicationFiled: September 17, 2010Publication date: January 13, 2011Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Feng-Yi Chang, Pei-Yu Chou, Jiunn-Hsiung Liao, Chih-Wen Feng, Ying-Chih Lin
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Patent number: 7825034Abstract: A substrate having an etch stop layer and at least a dielectric layer disposed from bottom to top is provided. The dielectric layer is then patterned to form a plurality of openings exposing the etch stop layer. A dielectric thin film is subsequently formed to cover the dielectric layer, the sidewalls of the openings, and the etch stop layer. The dielectric thin film disposed on the dielectric layer and the etch stop layer is then removed.Type: GrantFiled: October 6, 2005Date of Patent: November 2, 2010Assignee: United Microelectronics Corp.Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen
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Patent number: 7759742Abstract: A metal oxide semiconductor (MOS) transistor is disclosed. The MOS transistor includes: a semiconductor substrate; a gate disposed on the semiconductor substrate, wherein the gate comprises two sidewalls; a spacer formed on the sidewalls of the gate; a source/drain region disposed in the semiconductor substrate; a silicide layer disposed on top of the gate and the surface of the source/drain region; and a retarded interface layer disposed in the junction between the silicide layer and the gate and source/drain region.Type: GrantFiled: March 26, 2007Date of Patent: July 20, 2010Assignee: United Microelectronics Corp.Inventors: Ming-Tsung Chen, Chang-Chi Huang, Po-Chao Tsao
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Patent number: 7595234Abstract: A method for forming a metal oxide semiconductor (MOS) transistor is provided. First, a gate structure is formed over a substrate. Then, offset spacers are formed on respective sidewalls of the gate structure. A first ion implantation process is performed to form a lightly doped drain (LDD) in the substrate beside the gate structure. Other spacers are formed on respective sidewalls of the offset spacers. Thereafter, a second ion implantation process is performed to form source/drain region in the substrate beside the spacers. Then, a metal silicide layer is formed on the surface of the source and the drain. An oxide layer is formed on the surface of the metal silicide layer. The spacers are removed and an etching stop layer is formed on the substrate. With the oxide layer over the metal silicide layer, the solvent for removing the spacers is prevented from damaging the metal silicide layer.Type: GrantFiled: September 15, 2006Date of Patent: September 29, 2009Assignee: United Microelectronics Corp.Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Yi-Yiing Chiang, Yu-Lan Chang, Chung-Ju Lee, Chih-Ning Wu, Kuan-Yang Liao
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Patent number: 7572722Abstract: A semiconductor device having nickel silicide and a method for fabricating nickel silicide. A semiconductor substrate having a plurality of doped regions is provided. Subsequently, a nickel layer is formed on the semiconductor substrate, and a first rapid thermal process (RTP) is performed to react the nickel layer with the doped regions disposed there under. Thereafter, the unreacted nickel layer is removed, and a second rapid thermal process is performed to form a semiconductor device having nickel silicide. The second rapid thermal process is a spike anneal process whose process temperature is between 400 and 600° C.Type: GrantFiled: March 13, 2007Date of Patent: August 11, 2009Assignee: United Microelectronics Corp.Inventors: Yi-Wei Chen, Chao-Ching Hsieh, Yi-Yiing Chiang, Tzung-Yu Hung, Yu-Lan Chang, Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen
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Patent number: 7385294Abstract: A semiconductor device having nickel silicide and a method for fabricating nickel silicide. A semiconductor substrate having a plurality of doped regions is provided. Subsequently, a nickel layer is formed on the semiconductor substrate, and a first rapid thermal process (RTP) is performed to react the nickel layer with the doped regions disposed thereunder. Thereafter, the unreacted nickel layer is removed, and a second rapid thermal process is performed to form a semiconductor device having nickel silicide. The second rapid thermal process is a spike anneal process whose process temperature is between 400 and 600° C.Type: GrantFiled: September 8, 2005Date of Patent: June 10, 2008Assignee: United Microelectronics Corp.Inventors: Yi-Wei Chen, Chao-Ching Hsieh, Yi-Yiing Chiang, Tzung-Yu Hung, Yu-Lan Chang, Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen
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Patent number: 7384853Abstract: A method of performing salicide processes on a MOS transistor, wherein the MOS transistor comprises a gate structure and a source/drain region, the method comprising: performing a selective growth process to form a silicon layer on the top of the gate and the source/drain region; performing an ion implantation process to form a retarded interface layer between the silicon layer and the gate and source/drain region; forming a metal layer on the silicon layer; and reacting the metal layer with the silicon layer for forming a silicide layer.Type: GrantFiled: August 25, 2005Date of Patent: June 10, 2008Assignee: United Microelectronics Corp.Inventors: Ming-Tsung Chen, Chang-Chi Huang, Po-Chao Tsao
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Publication number: 20070181955Abstract: A metal oxide semiconductor (MOS) transistor is disclosed. The MOS transistor includes: a semiconductor substrate; a gate disposed on the semiconductor substrate, wherein the gate comprises two sidewalls; a spacer formed on the sidewalls of the gate; a source/drain region disposed in the semiconductor substrate; a silicide layer disposed on top of the gate and the surface of the source/drain region; and a retarded interface layer disposed in the junction between the silicide layer and the gate and source/drain region.Type: ApplicationFiled: March 26, 2007Publication date: August 9, 2007Inventors: Ming-Tsung Chen, Chang-Chi Huang, Po-Chao Tsao
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Publication number: 20070167009Abstract: A semiconductor device having nickel suicide and a method for fabricating nickel silicide. A semiconductor substrate having a plurality of doped regions is provided. Subsequently, a nickel layer is formed on the semiconductor substrate, and a first rapid thermal process (RTP) is performed to react the nickel layer with the doped regions disposed there under. Thereafter, the unreacted nickel layer is removed, and a second rapid thermal process is performed to form a semiconductor device having nickel silicide. The second rapid thermal process is a spike anneal process whose process temperature is between 400 and 600° C.Type: ApplicationFiled: March 13, 2007Publication date: July 19, 2007Inventors: Yi-Wei Chen, Chao-Ching Hsieh, Yi-Yiing Chiang, Tzung-Yu Hung, Yu-Lan Chang, Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen
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Publication number: 20070166936Abstract: A salicide process is described, wherein a substrate with an NMOS transistor and a PMOS transistor thereon is provided. A mask layer is formed over the substrate covering the PMOS transistor but exposing the NMOS transistor, and then a pre-amorphization implantation (PAI) step is conducted to the substrate using the mask layer as a mask. After the mask layer is removed, a salicide layer is formed on the NMOS transistor and the PMOS transistor.Type: ApplicationFiled: January 19, 2006Publication date: July 19, 2007Inventors: Po-Chao Tsao, Yi-Yiing Chiang, Chang-Chi Huang, Hsin-Hui Hsu, Ming-Tsung Chen, Chien-Ting Lin
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Patent number: 7214988Abstract: A method for forming a metal oxide semiconductor (MOS) transistor is provided. First, a gate structure is formed over a substrate. Then, offset spacers are formed on respective sidewalls of the gate structure. A first ion implantation process is performed to form a lightly doped drain (LDD) in the substrate beside the gate structure. Other spacers are formed on respective sidewalls of the offset spacers. Thereafter, a second ion implantation process is performed to form source/drain region in the substrate beside the spacers. Then, a metal silicide layer is formed on the surface of the source and the drain. An oxide layer is formed on the surface of the metal silicide layer. The spacers are removed and an etching stop layer is formed on the substrate. With the oxide layer over the metal silicide layer, the solvent for removing the spacers is prevented from damaging the metal silicide layer.Type: GrantFiled: September 20, 2005Date of Patent: May 8, 2007Assignee: United Microelectronics Corp.Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Yi-Yiing Chiang, Yu-Lan Chang, Chung-Ju Lee, Chih-Ning Wu, Kuan-Yang Liao
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Publication number: 20070082489Abstract: A substrate having an etch stop layer and at least a dielectric layer disposed from bottom to top is provided. The dielectric layer is then patterned to form a plurality of openings exposing the etch stop layer. A dielectric thin film is subsequently formed to cover the dielectric layer, the sidewalls of the openings, and the etch stop layer. The dielectric thin film disposed on the dielectric layer and the etch stop layer is then removed.Type: ApplicationFiled: October 6, 2005Publication date: April 12, 2007Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen
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Publication number: 20070063290Abstract: A method for forming a metal oxide semiconductor (MOS) transistor is provided. First, a gate structure is formed over a substrate. Then, offset spacers are formed on respective sidewalls of the gate structure. A first ion implantation process is performed to form a lightly doped drain (LDD) in the substrate beside the gate structure. Other spacers are formed on respective sidewalls of the offset spacers. Thereafter, a second ion implantation process is performed to form source/drain region in the substrate beside the spacers. Then, a metal silicide layer is formed on the surface of the source and the drain. An oxide layer is formed on the surface of the metal silicide layer. The spacers are removed and an etching stop layer is formed on the substrate. With the oxide layer over the metal silicide layer, the solvent for removing the spacers is prevented from damaging the metal silicide layer.Type: ApplicationFiled: September 20, 2005Publication date: March 22, 2007Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Yi-Yiing Chiang, Yu-Lan Chang, Chung-Ju Lee, Chih-Ning Wu, Kuan-Yang Liao
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Publication number: 20070066041Abstract: A method for forming a metal oxide semiconductor (MOS) transistor is provided. First, a gate structure is formed over a substrate. Then, offset spacers are formed on respective sidewalls of the gate structure. A first ion implantation process is performed to form a lightly doped drain (LDD) in the substrate beside the gate structure. Other spacers are formed on respective sidewalls of the offset spacers. Thereafter, a second ion implantation process is performed to form source/drain region in the substrate beside the spacers. Then, a metal silicide layer is formed on the surface of the source and the drain. An oxide layer is formed on the surface of the metal silicide layer. The spacers are removed and an etching stop layer is formed on the substrate. With the oxide layer over the metal silicide layer, the solvent for removing the spacers is prevented from damaging the metal silicide layer.Type: ApplicationFiled: September 15, 2006Publication date: March 22, 2007Applicant: UNITED MICROELECTRONICS CORP.Inventors: Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen, Yi-Yiing Chiang, Yu-Lan Chang, Chung-Ju Lee, Chih-Ning Wu, Kuan-Yang Liao
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Publication number: 20070054481Abstract: A semiconductor device having nickel suicide and a method for fabricating nickel silicide. A semiconductor substrate having a plurality of doped regions is provided. Subsequently, a nickel layer is formed on the semiconductor substrate, and a first rapid thermal process (RTP) is performed to react the nickel layer with the doped regions disposed thereunder. Thereafter, the unreacted nickel layer is removed, and a second rapid thermal process is performed to form a semiconductor device having nickel silicide. The second rapid thermal process is a spike anneal process whose process temperature is between 400 and 600° C.Type: ApplicationFiled: September 8, 2005Publication date: March 8, 2007Inventors: Yi-Wei Chen, Chao-Ching Hsieh, Yi-Yiing Chiang, Tzung-Yu Hung, Yu-Lan Chang, Po-Chao Tsao, Chang-Chi Huang, Ming-Tsung Chen
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Publication number: 20070049014Abstract: A method of performing salicide processes on a MOS transistor, wherein the MOS transistor comprises a gate structure and a source/drain region, the method comprising: performing a selective growth process to form a silicon layer on the top of the gate and the source/drain region; performing an ion implantation process to form a retarded interface layer between the silicon layer and the gate and source/drain region; forming a metal layer on the silicon layer; and reacting the metal layer with the silicon layer for forming a silicide layer.Type: ApplicationFiled: August 25, 2005Publication date: March 1, 2007Inventors: Ming-Tsung Chen, Chang-Chi Huang, Po-Chao Tsao
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Patent number: 6635537Abstract: A method of fabricating a gate oxide layer. A mask layer isformed on a substrate. The mask layer and the substrate are patterned to form a trench in the substrate. A portion of the mask layer is removed to expose the substrate at a top edge corner portion of the trench. An insulation layer is formed to fill the trench and covering the exposed substrate and the remaining mask layer. The insulation layer over the remaining mask layer is removed to expose the mask layer. The remaining mask layer is removed to expose the substrate. The exposed substrate is implanted with ions to reduce the oxidation rate. As a result, the substrate at the top edge corner portion of the trench covered with the insulation layer has an oxidation rate higher than the exposed substrate. The insulation layer over the surface level of the substrate is then removed to expose the substrate at the top edge corner portion of the trench.Type: GrantFiled: April 6, 2001Date of Patent: October 21, 2003Assignee: United Microelectronics Corp.Inventors: Tong-Hsin Lee, Shih-Chien Hsu, Chang-Chi Huang, Cheng-Tung Huang, Sheng-Hao Lin