Patents by Inventor Qin Lin
Qin Lin 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: 9640396Abstract: Novel double- and triple-patterning methods are provided. The methods involve applying a shrinkable composition to a patterned template structure (e.g., a structure having lines) and heating the composition. The shrinkable composition is selected to possess properties that will cause it to shrink during heating, thus forming a conformal layer over the patterned template structure. The layer is then etched to leave behind pre-spacer structures, which comprise the features from the pattern with remnants of the shrinkable composition adjacent the feature sidewalls. The features are removed, leaving behind a doubled pattern. In an alternative embodiment, an extra etch step can be carried out prior to formation of the features on the template structure, thus allowing the pattern to be tripled rather than doubled.Type: GrantFiled: January 5, 2010Date of Patent: May 2, 2017Assignee: Brewer Science Inc.Inventors: Qin Lin, Rama Puligadda, James Claypool, Douglas J. Guerrero, Brian Smith
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Publication number: 20160066856Abstract: Provided is a method for compensating for tissue motion during magnetic resonance (MR) imaging, and an apparatus for use thereof. The method includes acquiring a plurality of short-time MR scan images; selecting a reference scan image from the acquired plurality of short-time MR scan images; defining a set of transformation images based on the acquired plurality of short-time MR scan images other than the selected reference scan image; registering the reference scan image and the defined set of transformation images; calculating an average of aligned, registered images of the defined set of transformation images; and generating a motion-corrected image based on the calculated average.Type: ApplicationFiled: June 6, 2014Publication date: March 10, 2016Inventors: Jerome Zhengrong LIANG, Qin LIN
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Patent number: 9102129Abstract: The invention described herein is directed towards spin-on carbon materials comprising polyamic acid compositions and a crosslinker in a solvent system. The materials are useful in trilayer photolithography processes. Films made with the inventive compositions are not soluble in solvents commonly used in lithographic materials, such as, but not limited to PGME, PGMEA, and cyclohexanone. However, the films can be dissolved in developers commonly used in photolithography. In one embodiment, the films can be heated at high temperatures to improve the thermal stability for high temperature processing. Regardless of the embodiment, the material can be applied to a flat/planar or patterned surface. Advantageously, the material exhibits a wiggling resistance during pattern transfer to silicon substrate using fluorocarbon etch.Type: GrantFiled: August 15, 2014Date of Patent: August 11, 2015Assignee: Brewer Science Inc.Inventors: Vandana Krishnamurthy, Daniel M. Sullivan, Yubao Wang, Qin Lin, Sean Simmons
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Patent number: 9097574Abstract: A method for calibrating large fixed electronic scale is provided. The method applies an auxiliary verification device to calibrate the large fixed electronic scale without using a weight and includes following steps of: loading and unloading every supporting point on the scale table board of the scale by at least one self-locating loading and unloading mechanism; measuring and displaying a load that each loading and unloading mechanisms applies to the scale table board by at least one high accuracy load gauge; controlling a size of the load that each loading and unloading mechanisms applies to the scale table board by a constant load control device; and comparing a precise load displayed by the high accuracy load gauge with a gauge weighing display value of the scale to obtain a calibration error of the scale. The present method greatly improves working efficiency and safety and reduces costs.Type: GrantFiled: May 30, 2011Date of Patent: August 4, 2015Assignee: FUJIAN METROLOGY INSTITUTEInventors: Jinhui Yao, Qin Lin, Jianhui Lin, Hui Chi
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Patent number: 8932691Abstract: Disclosed is a multilayer structure useful for preparing highly abrasion-resistant protective liners, including tubular articles such as multilayer tubes or pipes.Type: GrantFiled: March 6, 2012Date of Patent: January 13, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Benjamin Andrew Smillie, Sassan Hojabr, John D. Vansant, Qin Lin
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Publication number: 20140356593Abstract: The invention described herein is directed towards spin-on carbon materials comprising polyamic acid compositions and a crosslinker in a solvent system. The materials are useful in trilayer photolithography processes. Films made with the inventive compositions are not soluble in solvents commonly used in lithographic materials, such as, but not limited to PGME, PGMEA, and cyclohexanone. However, the films can be dissolved in developers commonly used in photolithography. In one embodiment, the films can be heated at high temperatures to improve the thermal stability for high temperature processing. Regardless of the embodiment, the material can be applied to a flat/planar or patterned surface. Advantageously, the material exhibits a wiggling resistance during pattern transfer to silicon substrate using fluorocarbon etch.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Inventors: Vandana Krishnamurthy, Daniel M. Sullivan, Yubao Wang, Qin Lin, Sean Simmons
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Patent number: 8895230Abstract: The invention described herein is directed towards spin-on carbon materials comprising polyamic acid compositions and a crosslinker in a solvent system. The materials are useful in trilayer photolithography processes. Films made with the inventive compositions are not soluble in solvents commonly used in lithographic materials, such as, but not limited to PGME, PGMEA, and cyclohexanone. However, the films can be dissolved in developers commonly used in photolithography. In one embodiment, the films can be heated at high temperatures to improve the thermal stability for high temperature processing. Regardless of the embodiment, the material can be applied to a flat/planar or patterned surface. Advantageously, the material exhibits a wiggling resistance during pattern transfer to silicon substrate using fluorocarbon etch.Type: GrantFiled: October 10, 2012Date of Patent: November 25, 2014Assignee: Brewer Science Inc.Inventors: Vandana Krishnamurthy, Daniel M. Sullivan, Yubao Wang, Qin Lin, Sean Simmons
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Patent number: 8836082Abstract: A novel reversal lithography process without etch back is described. The reversal material comprises nanoparticles that are selectively deposited into the gaps between features without overcoating the tops of the features. As a result, a patterned imaging layer can be removed using solvent, blanket exposure followed by developer washing, or dry etching directly, without an etch-back process, and the original bright field lithography pattern can be reversed into dark field features, and transferred into subsequent layers using the nanoparticle reversal material as an etch mask.Type: GrantFiled: January 31, 2011Date of Patent: September 16, 2014Assignee: Brewer Science Inc.Inventors: Qin Lin, Daniel M. Sullivan, Hao Xu, Tony D. Flaim
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Patent number: 8808969Abstract: Radiation-sensitive sol-gel compositions are provided, along with methods of forming microelectronic structures and the structures thus formed. The compositions comprise a sol-gel compound and a base generator dispersed or dissolved in a solvent system. The sol-gel compound comprises recurring monomeric units comprising silicon with crosslinkable moieties bonded to the silicon. Upon exposure to radiation, the base generator generates a strong base, which crosslinks the sol-gel compound in the compositions to yield a crosslinked layer that is insoluble in developers or solvents. The unexposed portions of the layer can be removed to yield a patterned sol-gel layer. The invention can be used to form patterns from sol-gel materials comprising features having feature sizes of less than about 1 ?m.Type: GrantFiled: April 10, 2012Date of Patent: August 19, 2014Assignee: Brewer Science Inc.Inventors: Qin Lin, Yubao Wang, Tony D. Flaim
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Publication number: 20140225252Abstract: A reversal lithography approach is disclosed in which dark-field features are created on microelectronic substrates using bright-field lithography processes and a pattern reversal method. A wafer stack having a patterned imaging layer is provided that has a plurality of features formed thereon. A pattern reversal composition is applied to the patterned imaging layer overcoating the features, followed by wet etch-back of partially cured portions of the composition to expose the tops of the features. The imaging layer is then removed resulting in reversal of the pattern into the pattern reversal composition.Type: ApplicationFiled: February 12, 2013Publication date: August 14, 2014Applicant: BREWER SCIENCE INC.Inventors: Qin Lin, Daniel M. Sullivan, Tony D. Flaim, Yubao Wang, Jamie Lea Storie
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Patent number: 8753472Abstract: A pipe or tube article comprising an innermost layer made from a grafted polyolefin composition is disclosed which can provide long lifetime, highly abrasion-resistant pipes for mining and other transportation uses. Methods for preparing the article and transporting abrasive materials through the article are also described.Type: GrantFiled: April 5, 2013Date of Patent: June 17, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Richard Allen Hayes, Qin Lin
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Patent number: 8497005Abstract: A pipe or tube article comprising an innermost comprising a grafted polyolefin composition made from a grafted polyolefin composition is disclosed which can provide long lifetime, highly abrasion-resistant pipes for mining and other transportation uses. Methods for preparing the article and transporting abrasive materials through the article are also described.Type: GrantFiled: June 27, 2012Date of Patent: July 30, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Richard Allen Hayes, Qin Lin
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Patent number: 8444804Abstract: This invention relates to a method for sealing film layers to form a sealed portion and a notch within the sealed portion, comprising: providing film layers between sealing jaws comprising a heat sealing element, with a sealing face having a length and a protrusion extending partly along the length of its sealing face; inducing a temperature gradient along the of sealing face length, wherein the temperature proximate to the protrusion is higher than at a distance from the protrusion; closing the jaws and simultaneously clamping the film at a location adjacent to the sealing face; holding the jaws closed for a period of time; and opening the jaws to release the layers of film.Type: GrantFiled: February 14, 2012Date of Patent: May 21, 2013Assignee: Liqui-Box CorporationInventors: James William Sadler, Qin Lin, Gordon Charles Bird, Victor Wayne McCarron
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Publication number: 20130098136Abstract: A method for calibrating large fixed electronic scale is provided. The method applies an auxiliary verification device to calibrate the large fixed electronic scale without using a weight and includes following steps of: loading and unloading every supporting point on the scale table board of the scale by at least one self-locating loading and unloading mechanism; measuring and displaying a load that each loading and unloading mechanisms applies to the scale table board by at least one high accuracy load gauge; controlling a size of the load that each loading and unloading mechanisms applies to the scale table board by a constant load control device; and comparing a precise load displayed by the high accuracy load gauge with a gauge weighing display value of the scale to obtain a calibration error of the scale. The present method greatly improves working efficiency and safety and reduces costs.Type: ApplicationFiled: May 30, 2011Publication date: April 25, 2013Applicant: FUJIAN METROLOGY INSTITUTEInventors: Jinhui Yao, Qin Lin, Jianhui Lin, Hui Chi
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Publication number: 20130065000Abstract: Disclosed is a multilayer structure useful for preparing highly abrasion-resistant protective liners, including tubular articles such as multilayer tubes or pipes.Type: ApplicationFiled: March 6, 2012Publication date: March 14, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: BENJAMIN ANDREW SMILLIE, SASSAN HOJABR, JOHN D. VANSANT, QIN LIN
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Publication number: 20120264056Abstract: Radiation-sensitive sol-gel compositions are provided, along with methods of forming microelectronic structures and the structures thus formed. The compositions comprise a sol-gel compound and a base generator dispersed or dissolved in a solvent system. The sol-gel compound comprises recurring monomeric units comprising silicon with crosslinkable moieties bonded to the silicon. Upon exposure to radiation, the base generator generates a strong base, which crosslinks the sol-gel compound in the compositions to yield a crosslinked layer that is insoluble in developers or solvents. The unexposed portions of the layer can be removed to yield a patterned sol-gel layer. The invention can be used to form patterns from sol-gel materials comprising features having feature sizes of less than about 1 ?m.Type: ApplicationFiled: April 10, 2012Publication date: October 18, 2012Applicant: BREWER SCIENCE INC.Inventors: Qin Lin, Yubao Wang, Tony D. Flaim
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Publication number: 20120220439Abstract: This invention relates to a method for sealing film layers to form a sealed portion and a notch within the sealed portion, comprising: providing film layers between sealing jaws comprising a heat sealing element, with a sealing face having a length and a protrusion extending partly along the length of its sealing face; inducing a temperature gradient along the of sealing face length, wherein the temperature proximate to the protrusion is higher than at a distance from the protrusion; closing the jaws and simultaneously clamping the film at a location adjacent to the sealing face; holding the jaws closed for a period of time; and opening the jaws to release the layers of film.Type: ApplicationFiled: February 14, 2012Publication date: August 30, 2012Applicant: Liqui-Box CorporationInventors: James William Sadler, Qin Lin, Gordon Charles Bird, Victor Wayne McCarron
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Publication number: 20120216960Abstract: This invention relates to a heat sealing element for use in a heat sealing jaw in cooperation with an opposing backing jaw for sealing layers of film together to form a sealed portion and a notch within the sealed portion, the heat sealing element comprising: a sealing face for pressing the layers of film together against the opposing backing jaw and forming the sealed portion, the sealing face having a protrusion for forming the notch within the sealed portion; and a clamping portion adjacent to the sealing face, the clamping portion being disposed at an orientation diverging from a plane along which the layers of film are sealed together.Type: ApplicationFiled: February 14, 2012Publication date: August 30, 2012Applicant: Liqui-Box CorporationInventors: James William Sadler, Qin Lin, Gordon Charles Bird, Victor Wayne McCarron
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Publication number: 20120193762Abstract: A novel reversal lithography process without etch back is described. The reversal material comprises nanoparticles that are selectively deposited into the gaps between features without overcoating the tops of the features. As a result, a patterned imaging layer can be removed using solvent, blanket exposure followed by developer washing, or dry etching directly, without an etch-back process, and the original bright field lithography pattern can be reversed into dark field features, and transferred into subsequent layers using the nanoparticle reversal material as an etch mask.Type: ApplicationFiled: January 31, 2011Publication date: August 2, 2012Applicant: BREWER SCIENCE INC.Inventors: Qin Lin, Daniel M. Sullivan, Hao Xu, Tony D. Flaim
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Publication number: 20120164390Abstract: Methods of forming microelectronic structure are provided. The methods comprise the formation of T-shaped structures using a controlled undercutting process, and the deposition of a selectively etchable composition into the undercut areas of the T-shaped structures. The T-shaped structures are subsequently removed to yield extremely small undercut-formed features that conform to the width and optionally the height of the undercut areas of the T-shaped structures. These methods can be combined with other conventional patterning methods to create structures having extremely small feature sizes regardless of the wavelength of light used for patterning.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicant: BREWER SCIENCE INC.Inventors: Carlton Ashley Washburn, James E. Lamb, III, Nickolas L. Brakensiek, Qin Lin, Yubao Wang, Vandana Krishnamurthy, Claudia Scott