Patents by Inventor Sen Liu
Sen Liu 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: 9221139Abstract: A machine tool includes a receptacle extended from a stand, a working spindle rotatably attached to the receptacle and having a chuck device for grasping and releasing a tool member from the working spindle, a follower slidably attached onto the working spindle for actuating the chuck device to selectively grasp or release the tool member, a lever arm having one end pivotally attached to the receptacle with an axle, an actuator attached to the lever arm for actuating the follower to operate the chuck device to grasp and to release the tool member, and a driving device includes a piston for moving the lever arm and the actuator to actuate and move the chuck device to release the tool member.Type: GrantFiled: May 16, 2013Date of Patent: December 29, 2015Assignee: Kugi Tech Corp.Inventor: Che Sen Liu
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Patent number: 9050695Abstract: A machine tool includes a lever arm extended from a column, a working spindle and a guiding member attached to the lever arm and having an upper guiding surface and a lower recess formed by an anchoring surface, the guiding surface is located farther away from the column as compared with the anchoring surface of the guiding member, a tool cartridge is attached to the lever arm for supplying tool elements to the working spindle, and includes a seat having a cam surface, a guiding roller attached to the seat for engaging with the guiding surface of the guiding member and for selectively separating the tool cartridge from the working spindle and the guiding member.Type: GrantFiled: March 11, 2013Date of Patent: June 9, 2015Assignee: Kugi Tech Corp.Inventor: Che Sen Liu
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Patent number: 9040225Abstract: The present invention relates to a developable bottom antireflective coating (BARC) composition and a pattern forming method using the BARC composition. The BARC composition includes a first polymer having a first carboxylic acid moiety, a hydroxy-containing alicyclic moiety, and a first chromophore moiety; a second polymer having a second carboxylic acid moiety, a hydroxy-containing acyclic moiety, and a second chromophore moiety; a crosslinking agent; and a radiation sensitive acid generator. The first and second chromophore moieties each absorb light at a wavelength from 100 nm to 400 nm. In the patterning forming method, a photoresist layer is formed over a BARC layer of the BARC composition. After exposure, unexposed regions of the photoresist layer and the BARC layer are selectively removed by a developer to form a patterned structure in the photoresist layer. The BARC composition and the pattern forming method are especially useful for implanting levels.Type: GrantFiled: October 30, 2014Date of Patent: May 26, 2015Assignee: International Business Machines CorporationInventors: Kuang-Jung Chen, Steven J. Holmes, Wu-Song Huang, Ranee W. Kwong, Sen Liu
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Publication number: 20150100437Abstract: Techniques for organizing and presenting deals/commercial offers received by users in emails are provided. Emails directed to a user that contain commercial offers for the user are determined. The determined emails are stored in a deal folder for the user. A deal newsletter is generated that at least summarizes commercial offers contained in at least a portion of the emails stored in the deal folder. The deal folder may be displayed to show the user the received deal emails. Furthermore, the deal newsletter may be displayed to the user to summarize the received deals for the user.Type: ApplicationFiled: June 29, 2012Publication date: April 9, 2015Applicant: YAHOO! INC.Inventors: Jiacheng Guo, Li He, Sen Liu
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Patent number: 8999624Abstract: The present invention relates to a developable bottom antireflective coating (BARC) composition and a pattern forming method using the BARC composition. The BARC composition includes a first polymer having a first carboxylic acid moiety, a hydroxy-containing alicyclic moiety, and a first chromophore moiety; a second polymer having a second carboxylic acid moiety, a hydroxy-containing acyclic moiety, and a second chromophore moiety; a crosslinking agent; and a radiation sensitive acid generator. The first and second chromophore moieties each absorb light at a wavelength from 100 nm to 400 nm. In the patterning forming method, a photoresist layer is formed over a BARC layer of the BARC composition. After exposure, unexposed regions of the photoresist layer and the BARC layer are selectively removed by a developer to form a patterned structure in the photoresist layer. The BARC composition and the pattern forming method are especially useful for implanting levels.Type: GrantFiled: June 29, 2012Date of Patent: April 7, 2015Assignee: International Business Machines CorporationInventors: Kuang-Jung Chen, Steven J. Holmes, Wu-Song Huang, Ranee Kwong, Sen Liu
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Patent number: 8986918Abstract: The present invention relates to a hybrid photoresist composition for improved resolution and a pattern forming method using the photoresist composition. The photoresist composition includes a radiation sensitive acid generator, a crosslinking agent and a polymer having a hydrophobic monomer unit and a hydrophilic monomer unit containing a hydroxyl group. At least some of the hydroxyl groups are protected with an acid labile moiety having a low activation energy. The photoresist is capable of producing a hybrid response to a single exposure. The patterning forming method utilizes the hybrid response to form a patterned structure in the photoresist layer. The photoresist composition and the pattern forming method of the present invention are useful for printing small features with precise image control, particularly spaces of small dimensions.Type: GrantFiled: November 15, 2013Date of Patent: March 24, 2015Assignee: International Business Machines CorporationInventors: Gregory Breyta, Kuang-Jung Chen, Steven J. Holmes, Wu-Song Huang, Sen Liu
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Publication number: 20150050601Abstract: The present invention relates to a developable bottom antireflective coating (BARC) composition and a pattern forming method using the BARC composition. The BARC composition includes a first polymer having a first carboxylic acid moiety, a hydroxy-containing alicyclic moiety, and a first chromophore moiety; a second polymer having a second carboxylic acid moiety, a hydroxy-containing acyclic moiety, and a second chromophore moiety; a crosslinking agent; and a radiation sensitive acid generator. The first and second chromophore moieties each absorb light at a wavelength from 100 nm to 400 nm. In the patterning forming method, a photoresist layer is formed over a BARC layer of the BARC composition. After exposure, unexposed regions of the photoresist layer and the BARC layer are selectively removed by a developer to form a patterned structure in the photoresist layer. The BARC composition and the pattern forming method are especially useful for implanting levels.Type: ApplicationFiled: October 30, 2014Publication date: February 19, 2015Inventors: Kuang-Jung Chen, Steven J. Holmes, Wu-Song Huang, Ranee W. Kwong, Sen Liu
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Patent number: 8932796Abstract: The present invention relates to a hybrid photoresist composition for improved resolution and a pattern forming method using the photoresist composition. The photoresist composition includes a radiation sensitive acid generator, a crosslinking agent and a polymer having a hydrophobic monomer unit and a hydrophilic monomer unit containing a hydroxyl group. At least some of the hydroxyl groups are protected with an acid labile moiety having a low activation energy. The photoresist is capable of producing a hybrid response to a single exposure. The patterning forming method utilizes the hybrid response to form a patterned structure in the photoresist layer. The photoresist composition and the pattern forming method of the present invention are useful for printing small features with precise image control, particularly spaces of small dimensions.Type: GrantFiled: November 10, 2011Date of Patent: January 13, 2015Assignee: International Business Machines CorporationInventors: Kuang-Jung Chen, Wu-Song S. Huang, Sen Liu, Steven J. Holmes, Gregory Breyta
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Patent number: 8906591Abstract: The present invention relates to a fluorine-free photoacid generator (PAG) and a photoresist composition containing the same. The PAG is characterized by the presence of an onium cationic component and a fluorine-free fused ring heteroaromatic sulfonate anionic component containing one or more electron withdrawing substituents. The onium cationic component of the PAG is preferably a sulfonium or an iodonium cation. The photoresist composition further contains an acid sensitive imaging polymer. The photoresist composition is especially useful for forming material patterns on a semiconductor substrate using 193 nm (ArF) lithography.Type: GrantFiled: September 14, 2012Date of Patent: December 9, 2014Assignee: International Business Machines CorporationInventors: Sen Liu, Pushkara R. Varanasi
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Publication number: 20140349237Abstract: A method that forms a film of photoresist composition on a substrate and exposes a first and second region of the film to radiation through a first and second mask having a first and second image pattern, respectively. The photoresist composition includes a polymer comprising at least one acid labile group, a photosensitive acid generator capable of generating a first amount of acid upon exposure to a first dose of radiation and of generating a second amount of acid upon exposure to a second dose of radiation, and a photosensitive base generator capable of generating a first amount of base upon exposure to the first dose of radiation and of generating a second amount of base upon exposure to the second dose of radiation. The photosensitive acid generator includes (trifluoro-methylsulfonyloxy)-bicyclo[2.2.1]hept-5-ene-2,3-dicarboximide (MDT), N-hydroxy-naphthalimide dodecane sulfonate (DDSN), or a combination thereof. The photosensitive base generator includes a quaternary ammonium salt.Type: ApplicationFiled: August 12, 2014Publication date: November 27, 2014Inventors: Kuang-Jung Chen, Wu-Song Huang, Ranee Wai-Ling Kwong, Sen Liu, Pushkara R. Varanasi
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Publication number: 20140342891Abstract: A machine tool includes a receptacle extended from a stand, a working spindle rotatably attached to the receptacle and having a chuck device for grasping and releasing a tool member from the working spindle, a follower slidably attached onto the working spindle for actuating the chuck device to selectively grasp or release the tool member, a lever arm having one end pivotally attached to the receptacle with an axle, an actuator attached to the lever arm for actuating the follower to operate the chuck device to grasp and to release the tool member, and a driving device includes a piston for moving the lever arm and the actuator to actuate and move the chuck device to release the tool member.Type: ApplicationFiled: May 16, 2013Publication date: November 20, 2014Applicant: Kugi Tech Corp.Inventor: Che Sen LIU
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Patent number: 8883395Abstract: The present invention relates to a fluorine-free photoacid generator (PAG) and a photoresist composition containing the same. The PAG is characterized by the presence of an onium cationic component and a fluorine-free fused ring heteroaromatic sulfonate anionic component containing one or more electron withdrawing substituents. The onium cationic component of the PAG is preferably a sulfonium or an iodonium cation. The photoresist composition further contains an acid sensitive imaging polymer. The photoresist composition is especially useful for forming material patterns on a semiconductor substrate using 193 nm (ArF) lithography.Type: GrantFiled: September 14, 2012Date of Patent: November 11, 2014Assignee: International Business Machines CorporationInventors: Sen Liu, Pushkara R. Varanasi
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Patent number: 8871429Abstract: The present invention relates to a fluorine-free photoacid generator (PAG) and a photoresist composition containing the same. The PAG is characterized by the presence of an onium cationic component and a fluorine-free fused ring heteroaromatic sulfonate anionic component containing one or more electron withdrawing substituents. The onium cationic component of the PAG is preferably a sulfonium or an iodonium cation. The photoresist composition further contains an acid sensitive imaging polymer. The photoresist composition is especially useful for forming material patterns on a semiconductor substrate using 193 nm (ArF) lithography.Type: GrantFiled: September 14, 2012Date of Patent: October 28, 2014Assignee: International Business Machines CorporationInventors: Sen Liu, Pushkara R. Varanasi
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Patent number: 8871596Abstract: A method of forming different structures of a semiconductor device using a single mask and a hybrid photoresist. The method includes: applying a first photoresist layer on a semiconductor substrate; patterning the first photoresist layer using a photomask to form a first patterned photoresist layer; using the first patterned photoresist layer to form a first structure of a semiconductor device; removing the first patterned photoresist layer; applying a second photoresist layer on the semiconductor substrate; patterning the second photoresist layer using the photomask to form a second patterned photoresist layer; using the second patterned photoresist layer to form a second structure of a semiconductor device; removing the second patterned photoresist layer; and wherein either the first or the second photoresist layer is a hybrid photoresist layer comprising a hybrid photoresist.Type: GrantFiled: July 23, 2012Date of Patent: October 28, 2014Assignee: International Business Machines CorporationInventors: Kuang-Jung Chen, Kangguo Cheng, Bruce B. Doris, Steven J. Holmes, Sen Liu
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Patent number: 8846296Abstract: A composition is provided. The composition includes a polymer and a photosensitive acid generator capable of generating a first amount of acid upon exposure to a first dose of radiation and a second amount of acid upon exposure to a second dose of radiation. The second amount of acid is greater than the first amount of acid. The second dose is greater than the first dose. The composition includes a photosensitive base generator capable of generating a first amount of base upon exposure to the first dose and a second amount of base upon exposure to the second dose, where the first amount of base is greater than the first amount of acid and the second amount of base is less than the second amount of acid. The photosensitive base generator may include benzoin carbamates, O-carbamoylhydroxylamines, O-carbamoyloximes, aromatic sulfonamides, ?-lactones, N-(2-Arylethenyl)amides, azides, amides, oximines, quaternary ammonium salts, or amineimides.Type: GrantFiled: May 2, 2012Date of Patent: September 30, 2014Assignee: International Business Machines CorporationInventors: Kuang-Jung Chen, Wu-Song Huang, Ranee Wai-Ling Kwong, Sen Liu, Pushkara R. Varanasi
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Publication number: 20140264390Abstract: A method of fabricating an epitaxial device, comprising: providing a substrate having a first surface and a normal direction; epitaxially forming a first transition layer in a first temperature on the first surface of the substrate and in-situ incorporating a porogen into the first transition layer; and adjusting the first temperature to a second temperature to burn out the porogen from the first transition layer to form a hollow component inside the first transition layer.Type: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: Epistar CorporationInventor: Ai-Sen LIU
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Publication number: 20140256527Abstract: A machine tool includes a lever arm extended from a column, a working spindle and a guiding member attached to the lever arm and having an upper guiding surface and a lower recess formed by an anchoring surface, the guiding surface is located farther away from the column as compared with the anchoring surface of the guiding member, a tool cartridge is attached to the lever arm for supplying tool elements to the working spindle, and includes a seat having a cam surface, a guiding roller attached to the seat for engaging with the guiding surface of the guiding member and for selectively separating the tool cartridge from the working spindle and the guiding member.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Applicant: Kugi Tech Corp.Inventor: Che Sen LIU
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Publication number: 20140210034Abstract: A curable liquid formulation comprising: (i) one or more near-infrared absorbing polymethine dyes; (ii) one or more crosslinkable polymers; and (iii) one or more casting solvents. The invention is also directed to solid near-infrared absorbing films composed of crosslinked forms of the curable liquid formulation. The invention is also directed to a microelectronic substrate containing a coating of the solid near-infrared absorbing film as well as a method for patterning a photoresist layer coated on a microelectronic substrate in the case where the near-infrared absorbing film is between the microelectronic substrate and a photoresist film.Type: ApplicationFiled: April 2, 2014Publication date: July 31, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wu-Song Huang, Martin Glodde, Dario L. Goldfarb, Wai-Kin Li, Sen Liu, Libor Vyklicky
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Publication number: 20140203322Abstract: An optical electrical device comprises a base and a transparent conductive structure on the base is disclosed. The base further comprises a light-emitting device and the transparent conductive structure comprises a transparent conductive oxide layer and a passivation layer on the transparent conductive oxide layer. The material of the transparent conductive oxide layer comprises transparent conductive metal oxide, such as ZnO. Furthermore, the transparent conductive metal oxide also comprises impurities, such as a carrier e.g. gallium.Type: ApplicationFiled: August 20, 2013Publication date: July 24, 2014Applicant: EPISTAR CORPORATIONInventors: Yung-Fu Chang, Meng-Chyi Wu, Chong-Long Ho, Ai-Sen Liu
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Patent number: 8772376Abstract: A curable liquid formulation comprising: (i) one or more near-infrared absorbing polymethine dyes; (ii) one or more crosslinkable polymers; and (iii) one or more casting solvents. The invention is also directed to solid near-infrared absorbing films composed of crosslinked forms of the curable liquid formulation. The invention is also directed to a microelectronic substrate containing a coating of the solid near-infrared absorbing film as well as a method for patterning a photoresist layer coated on a microelectronic substrate in the case where the near-infrared absorbing film is between the microelectronic substrate and a photoresist film.Type: GrantFiled: August 18, 2009Date of Patent: July 8, 2014Assignee: International Business Machines CorporationInventors: Wu-Song Huang, Martin Glodde, Dario L. Goldfarb, Wai-Kin Li, Sen Liu, Libor Vyklicky