Patents by Inventor Yiying Zhang
Yiying Zhang 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: 20120309151Abstract: Method of fabricating a semiconductor device includes forming a gate having a first material on a substrate and forming a layer of a second material overlaying the gate. Sidewall spacers are formed on opposite sides of the gate. The substrate is dry etched using the layer of second material and the sidewall spacers as a mask forming a recess in the substrate between two adjacent gates. A liner oxide layer is formed on inner walls of the recess. The liner oxide layer is removed by isotropic wet etching. Orientation selective wet etching is performed on the recess to shape the inner wall of the recess so as to cause the inner wall of the recess to be sigma-shaped. By removing the substrate portions having lattice defects due to dry etching through oxidation and wet etching, defect-free epitaxial growth performance is realized.Type: ApplicationFiled: November 9, 2011Publication date: December 6, 2012Applicant: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING) CORPORATIONInventors: Yiying Zhang, Qiyang He
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Publication number: 20120309152Abstract: A method of fabricating semiconductor device includes forming a plurality of gates on a substrate, forming a top layer on a top surface of each gate, forming sidewall spacers on opposite sides of each gate, and forming sacrificial spacers on the sidewall spacers. The method further includes performing a dry etching process on the substrate using the top layer and the sacrificial spacers as a mask to form a recess of a first width in the substrate between two adjacent gates, performing an isotropic wet etching process on the recess to expand the first width to a second width, and performing an orientation selective wet etching process on the recess to shape the rectangular-shaped recess into a ?-shaped recess.Type: ApplicationFiled: November 9, 2011Publication date: December 6, 2012Applicant: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING) CORPORATIONInventors: Qiyang He, Yiying Zhang
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Publication number: 20120286335Abstract: A semiconductor device and a manufacturing method thereof are disclosed. The method comprises: providing a substrate with a first dielectric layer and a gate, wherein the gate is embedded in the first dielectric layer and an upper portion of the gate is an exposed first metal; and covering only the exposed first metal with a conductive material that is harder to be oxidized than the first metal by a selective deposition. An advantage of the present invention is that the metal of the upper surface of the gate is prevented from being oxidized by covering the metal gate with the conductive material that is relatively harder to be oxidized, thereby facilitating the formation of an effective electrical connection to the gate.Type: ApplicationFiled: September 22, 2011Publication date: November 15, 2012Inventors: YIYING ZHANG, Qiyang He
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Publication number: 20120276727Abstract: This disclosure relates to a method of forming a gate pattern and a semiconductor device. The gate pattern comprises a plurality of parallel gate bars, and each gate bar is broken up by gaps. The method comprises: making an etching characteristic of a gate material layer at least at positions where the gaps are to be formed different from that at remaining positions; forming a plurality of parallel openings in a second resist layer; performing a first etching process on the gate material layer with the second resist layer as a mask, wherein portions of the gate material layer at least at the positions where the gaps are to be formed are selectively left; and performing a second etching process on the gate material layer so as to selectively remove the portions. This method can more accurately control the shape and size of the gate pattern.Type: ApplicationFiled: September 23, 2011Publication date: November 1, 2012Applicant: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATIONInventors: YIYING ZHANG, QIYANG HE
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Publication number: 20120235243Abstract: This disclosure is directed to a method of forming a gate pattern and a semiconductor device. The method comprises: providing a plurality of stacked structures which are parallel to each other and extend continuously in a first direction, and which are composed of a gate material bar and an etching barrier bar thereon; leaving second resist regions between gaps to be formed adjacent to each other across gate bars by a second photolithography process; selectively removing the etching barrier bars by a second etching process; forming a third resist layer having a plurality of openings parallel to each other and extending continuously in a second direction substantially perpendicular to the first direction by a third photolithography process; and forming the gate pattern by a third etching process. The method is capable of having a larger photolithography process window and better controlling the shape and size of a gate pattern.Type: ApplicationFiled: September 22, 2011Publication date: September 20, 2012Applicant: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATIONInventors: QIYANG HE, YIYING ZHANG
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Publication number: 20120226936Abstract: A duplicate-aware disk array (DADA) leaves duplicated content on the disk array largely unmodified, instead of removing duplicated content, and then uses these duplicates to improve system performance, reliability, and availability of the disk array. Several implementations disclosed herein are directed to the selection of one duplicate from among a plurality of duplicates to act as the proxy for the other duplicates found in the disk array. Certain implementations disclosed herein are directed to scrubbing latent sector errors (LSEs) on duplicate-aware disk arrays. Other implementations are directed to disk reconstruction/recovery on duplicate-aware disk arrays. Yet other implementations are directed to load balancing on duplicate-aware disk arrays.Type: ApplicationFiled: March 4, 2011Publication date: September 6, 2012Applicant: Microsoft CorporationInventors: Vijayan Prabhakaran, Yiying Zhang
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Publication number: 20120171854Abstract: A method for forming a metal gate includes providing a substrate, subsequently forming a dummy gate on the substrate, forming spacers on sidewalls of the dummy gate, forming a stop layer on the substrate, the dummy gate and spacers of the dummy gate, and forming a sacrificial dielectric layer on the dummy gate and the stop layer. The method further includes removing a part of the sacrificial dielectric layer and the stop layer until the dummy gate is exposed and, removing a residual sacrificial dielectric layer, depositing an interlayer dielectric layer on the dummy gate and the stop layer, polishing the interlayer dielectric layer until the dummy gate is exposed, removing the dummy gate to form a trench, and forming a metal gate in the trench. The interlayer dielectric layer is flat and substantially flush with the dummy gate, so that no recesses are formed thereon.Type: ApplicationFiled: August 4, 2011Publication date: July 5, 2012Applicant: Semiconductor Manufacturing International (Shanghai) CorporationInventors: QIYANG HE, Yiying Zhang
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Patent number: 8173793Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to nucleic acids encoding materials identified herein as modulators of weight. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone. The present invention further provides nucleic acid molecules for use as molecular probes, or as primers for polymerase chain reaction (PCR) amplification, i.e., synthetic or natural oligonucleotides.Type: GrantFiled: May 6, 2009Date of Patent: May 8, 2012Assignee: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca, Margherita Maffei, Jeffrey L. Halaas, Ketan Gajiwala, Stephen K. Burley
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Publication number: 20110218332Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question function as a hormone.Type: ApplicationFiled: May 6, 2009Publication date: September 8, 2011Inventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca, Margherita Maffei, Jeffrey L. Halaas, Ketan Gajiwala, Stephen K. Burley
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Patent number: 7994301Abstract: Modulators of weight, including, for example, two isoforms of murine and human ob polypeptides, are provided, as well as diagnostic and therapeutic uses and methods comprising such. Also provided are nucleotide sequences, degenerate variations thereof, and proteins expressed by such.Type: GrantFiled: April 21, 2009Date of Patent: August 9, 2011Assignee: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Publication number: 20090318677Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone.Type: ApplicationFiled: April 21, 2009Publication date: December 24, 2009Inventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Patent number: 7521258Abstract: Modulators of weight, including, for example, two isoforms of murine and human ob polypeptides, are provided, as well as diagnostic and therapeutic uses and methods comprising such. Also provided are nucleotide sequences, degenerate variations thereof, and proteins expressed by such. Such materials are useful, for example, as molecular probes, as primers for polymerase chain reaction (PCR) amplification, as well as for the generation of antibodies. Also provided are vectors comprising such nucleotide sequences, including bacterial, insect, and mammalian expression vectors, which nucleotide sequences are operatively associated with an expression control sequence. Cells transformed or transfected with such vectors, and the use of such in the preparation of disclosed modulators, are also provided.Type: GrantFiled: February 17, 2004Date of Patent: April 21, 2009Assignee: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Patent number: 6821945Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of body weight, and to diagnostic and therapeutic uses of such modulators. In its broadest aspect, the present invention relates to nucleotide sequences corresponding to the murine and human OB gene, and two isoforms thereof, and proteins expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight and that have been postulated to play a critical role in the regulation of body weight and adiposity. The present invention further provides nucleic acid molecules for use as molecular probes or as primers for polymerase chain reaction (PCR) amplification. In further aspects, the present invention provides cloning vectors and mammalian expression vectors comprising the nucleic acid molecules of the invention.Type: GrantFiled: October 10, 2000Date of Patent: November 23, 2004Assignee: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Publication number: 20040214214Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone.Type: ApplicationFiled: February 17, 2004Publication date: October 28, 2004Inventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Publication number: 20040213763Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone.Type: ApplicationFiled: December 8, 2003Publication date: October 28, 2004Inventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca, Margherita Maffei, Jeffrey L. Halaas, Ketan Gajiwala, Stephen K. Burley
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Patent number: 6734160Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone.Type: GrantFiled: May 21, 1999Date of Patent: May 11, 2004Assignee: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Patent number: 6703493Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone.Type: GrantFiled: December 3, 1998Date of Patent: March 9, 2004Assignee: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Publication number: 20030040039Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone.Type: ApplicationFiled: May 21, 1999Publication date: February 27, 2003Inventors: JEFFREY M. FRIEDMAN, YIYING ZHANG, RICARDO PROENCA
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Patent number: 6471956Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and of the diagnostic and therapeutic uses to such modulators. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone. The present invention further provides nucleic acid molecules for use as molecular probes, or as primers for polymerase chain reaction (PCR) amplification, i.e.Type: GrantFiled: June 7, 1995Date of Patent: October 29, 2002Assignee: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Yiying Zhang, Ricardo Proenca
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Publication number: 20020107211Abstract: The present invention relates generally to the control of body weight of animals including mammals and humans, and more particularly to materials identified herein as modulators of weight, and to the diagnostic and therapeutic uses to which such modulators may be put. In its broadest aspect, the present invention relates to the elucidation and discovery of nucleotide sequences, and proteins putatively expressed by such nucleotides or degenerate variations thereof, that demonstrate the ability to participate in the control of mammalian body weight. The nucleotide sequences in object represent the genes corresponding to the murine and human ob gene, that have been postulated to play a critical role in the regulation of body weight and adiposity. Preliminary data, presented herein, suggests that the polypeptide product of the gene in question functions as a hormone.Type: ApplicationFiled: December 13, 2000Publication date: August 8, 2002Applicant: The Rockefeller UniversityInventors: Jeffrey M. Friedman, Jeffrey L. Halaas, Ketan Gajiwala, Stephen K. Burley, Yiying Zhang, Ricardo Proenca, Margherita Maffei