Patents by Inventor Doris Kang
Doris Kang 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: 11940731Abstract: Photoresist topcoat compositions comprise: a matrix polymer and a surface active polymer, wherein the surface active polymer comprises polymerized units of the following general formula (I): wherein: R1 represents a hydrogen atom, a halogen atom, a C1-C4 alkyl group, or a C1-C4 haloalkyl group; R2 independently represents a hydrogen atom or an optionally substituted alkyl group, wherein at least one R2 is not a hydrogen atom, wherein the R2 groups taken together optionally form a cyclic structure, and wherein the total number of carbon atoms for the R2 groups taken together is from 2 to 20; R3 represents an optionally substituted C1-C4 alkylene group, wherein an R2 group optionally forms a cyclic structure with R3; and R4 independently represents C1-C4 fluoroalkyl groups; wherein the total polymerized units of general formula (I) are present in the surface active polymer in an amount of 95 wt % or more based on total polymerized units of the surface active polymer; and wherein the surface active polymer iType: GrantFiled: June 24, 2019Date of Patent: March 26, 2024Assignee: Rohm and Haas Electronic Materials LLCInventors: Irvinder Kaur, Cong Liu, Doris Kang, Chunyi Wu
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Publication number: 20200004152Abstract: Photoresist topcoat compositions comprise: a matrix polymer and a surface active polymer, wherein the surface active polymer comprises polymerized units of the following general formula (I): wherein: R1 represents a hydrogen atom, a halogen atom, a C1-C4 alkyl group, or a C1-C4 haloalkyl group; R2 independently represents a hydrogen atom or an optionally substituted alkyl group, wherein at least one R2 is not a hydrogen atom, wherein the R2 groups taken together optionally form a cyclic structure, and wherein the total number of carbon atoms for the R2 groups taken together is from 2 to 20; R3 represents an optionally substituted C1-C4 alkylene group, wherein an R2 group optionally forms a cyclic structure with R3; and R4 independently represents C1-C4 fluoroalkyl groups; wherein the total polymerized units of general formula (I) are present in the surface active polymer in an amount of 95 wt % or more based on total polymerized units of the surface active polymer; and wherein the surface active polymer iType: ApplicationFiled: June 24, 2019Publication date: January 2, 2020Inventors: Irvinder KAUR, Cong Liu, Doris Kang, Chunyi Wu
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Patent number: 10481495Abstract: Provided are topcoat compositions that include: a matrix polymer; a surface active polymer; an ionic thermal acid generator comprising an anion and a cation, wherein the anion, the cation, or the anion and the cation are fluorinated; and a solvent. Also provided are coated substrates and pattern-forming methods which make use of the topcoat compositions. The invention has particular applicability in photolithographic processes as a photoresist topcoat layer in the manufacture of semiconductor devices.Type: GrantFiled: February 7, 2019Date of Patent: November 19, 2019Assignee: Rohm and Haas Electronic Materials LLCInventors: Irvinder Kaur, Doris Kang, Cong Liu, Gerhard Pohlers, Mingqi Li
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Publication number: 20190243246Abstract: Provided are topcoat compositions that include: a matrix polymer; a surface active polymer; an ionic thermal acid generator comprising an anion and a cation, wherein the anion, the cation, or the anion and the cation are fluorinated; and a solvent. Also provided are coated substrates and pattern-forming methods which make use of the topcoat compositions. The invention has particular applicability in photolithographic processes as a photoresist topcoat layer in the manufacture of semiconductor devices.Type: ApplicationFiled: February 7, 2019Publication date: August 8, 2019Inventors: Irvinder Kaur, Doris Kang, Cong Liu, Gerhard Pohlers, Mingqi Li
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Publication number: 20190203065Abstract: Photoresist topcoat compositions, comprising: a first polymer that is aqueous base soluble and is present in an amount of from 70 to 99 wt % based on total solids of the composition; a second polymer comprising a repeat unit of general formula (IV) and a repeat unit of general formula (V): wherein: R5 independently represents H, halogen atom, C1-C3 alkyl, or C1-C3 haloalkyl; R6 represents linear, branched or cyclic C1 to C20 fluoroalkyl; R7 represents linear, branched or cyclic C1 to C20 fluoroalkyl; L3 represents a multivalent linking group; and m is an integer of from 1 to 5; wherein the second polymer is free of non-fluorinated side chains; and wherein the second polymer is present in an amount of from 1 to 30 wt % based on total solids of the composition and a solvent. The invention finds particular applicability in the manufacture of semiconductor devices.Type: ApplicationFiled: December 17, 2018Publication date: July 4, 2019Inventors: Irvinder Kaur, Chunyi Wu, Joshua A. Kaitz, Mingqi Li, Doris Kang, Xisen Hou, Cong Liu
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Publication number: 20190204741Abstract: Photoresist topcoat compositions comprise: an aqueous base soluble polymer comprising as polymerized units a monomer of the following general formula (I): wherein: R1 is chosen from H, halogen atom, C1-C3 alkyl, or C1-C3 haloalkyl; R2 is independently chosen from substituted or unsubstituted C1-C12 alkyl or substituted or unsubstituted C5-C18 aryl; R3 and R4 are independently H, substituted or unsubstituted C1-C12 alkyl, substituted or unsubstituted C5-C18 aryl; X is a C2-C6 substituted or unsubstituted alkylene group; wherein X can optionally comprise one or more rings and together with R2 can optionally form a ring; L1 is a single bond or a linking group; p is an integer of from 1 to 50; and q is an integer of from 1 to 5; and a solvent. Substrates coated with the described topcoat compositions and methods of processing a photoresist composition are also provided. The invention finds particular applicability in the manufacture of semiconductor devices.Type: ApplicationFiled: December 6, 2018Publication date: July 4, 2019Inventors: Joshua A. Kaitz, Chunyi Wu, Irvinder Kaur, Mingqi Li, Doris Kang, Xisen Hou, Cong Liu
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Patent number: 10241411Abstract: Provided are topcoat compositions that include: a matrix polymer; a surface active polymer; an ionic thermal acid generator comprising an anion and a cation, wherein the anion, the cation, or the anion and the cation are fluorinated; and a solvent. Also provided are coated substrates and pattern-forming methods which make use of the topcoat compositions. The invention has particular applicability in photolithographic processes as a photoresist topcoat layer in the manufacture of semiconductor devices.Type: GrantFiled: October 12, 2017Date of Patent: March 26, 2019Assignee: Rohm and Haas Electronic Materials LLCInventors: Irvinder Kaur, Doris Kang, Cong Liu, Gerhard Pohlers, Mingqi Li
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Patent number: 10180627Abstract: New lithographic processing methods are provided which are particularly useful in immersion lithography schemes. In one aspect, processes of the invention comprise: applying on a substrate a photoresist composition; exposing the photoresist layer to radiation activating for the photoresist composition; removing a portion but not all of the exposed photoresist layer; and developing the treated photoresist layer to provide a photoresist relief image.Type: GrantFiled: June 8, 2010Date of Patent: January 15, 2019Assignee: Rohm and Haas Electronic Materials LLCInventors: Deyan Wang, George G. Barclay, Thomas A. Estelle, Kenneth J. Spizuoco, Doris Kang
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Patent number: 10042259Abstract: Topcoat compositions comprise: a matrix polymer; a surface active polymer comprising a polymerized unit formed from a monomer of the following general formula (I): wherein: R1 represents H, F, methyl or fluorinated methyl; R2 represents optionally substituted C1 to C8 alkylene or optionally substituted C1 to C8 fluoroalkylene, optionally comprising one or more heteroatom; R3 represents H, F, optionally substituted C1 to C10 alkyl or optionally substituted C5 to C15 aryl, optionally comprising one or more heteroatom; R4 represents optionally substituted C1 to C8 alkyl, optionally substituted C1 to C8 fluoroalkyl or optionally substituted C5 to C15 aryl, optionally comprising one or more heteroatom; X represents O, S or NR5, wherein R5 is chosen from hydrogen and optionally substituted C1 to C5 alkyl; and a is 0 or 1; and a solvent. Also provided are coated substrates and pattern-forming methods which make use of the topcoat compositions.Type: GrantFiled: October 12, 2017Date of Patent: August 7, 2018Assignee: Rohm and Haas Electronic Materials LLCInventors: Irvinder Kaur, Cong Liu, Doris Kang, Mingqi Li, Deyan Wang, Huaxing Zhou
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Publication number: 20180118968Abstract: Provided are topcoat compositions that include: a matrix polymer; a surface active polymer; an ionic thermal acid generator comprising an anion and a cation, wherein the anion, the cation, or the anion and the cation are fluorinated; and a solvent. Also provided are coated substrates and pattern-forming methods which make use of the topcoat compositions. The invention has particular applicability in photolithographic processes as a photoresist topcoat layer in the manufacture of semiconductor devices.Type: ApplicationFiled: October 12, 2017Publication date: May 3, 2018Inventors: Irvinder Kaur, Doris Kang, Cong Liu, Gerhard Pohlers, Mingqi Li
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Publication number: 20180118970Abstract: Topcoat compositions comprise: a matrix polymer; a surface active polymer comprising a polymerized unit formed from a monomer of the following general formula (I): wherein: R1 represents H, F, methyl or fluorinated methyl; R2 represents optionally substituted C1 to C8 alkylene or optionally substituted C1 to C8 fluoroalkylene, optionally comprising one or more heteroatom; R3 represents H, F, optionally substituted C1 to C10 alkyl or optionally substituted C5 to C15 aryl, optionally comprising one or more heteroatom; R4 represents optionally substituted C1 to C8 alkyl, optionally substituted C1 to C8 fluoroalkyl or optionally substituted C5 to C15 aryl, optionally comprising one or more heteroatom; X represents O, S or NR5, wherein R5 is chosen from hydrogen and optionally substituted C1 to C5 alkyl; and a is 0 or 1; and a solvent. Also provided are coated substrates and pattern-forming methods which make use of the topcoat compositions.Type: ApplicationFiled: October 12, 2017Publication date: May 3, 2018Inventors: Irvinder Kaur, Cong Liu, Doris Kang, Mingqi Li, Deyan Wang, Huaxing Zhou
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Patent number: 9696627Abstract: New photoresist compositions are provided that are useful for immersion lithography. Preferred photoresist compositions of the invention comprise one or more materials that have base-reactive groups. Particularly preferred photoresists of the invention can exhibit reduced leaching of resist materials into an immersion fluid contacting the resist layer during immersion lithography processing.Type: GrantFiled: December 13, 2010Date of Patent: July 4, 2017Assignee: Rohm and Haas Electronic Materials LLCInventors: Deyan Wang, Jinrong Liu, Cong Liu, Doris Kang, Anthony Zampini, Cheng-Bai Xu
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Patent number: 9436082Abstract: New photoresist compositions are provided that comprise one or more materials that have base-reactive groups and are particularly useful for dry lithography. Particularly preferred photoresists of the invention can exhibit reduced defects following development of a coating layer of the resist.Type: GrantFiled: December 30, 2011Date of Patent: September 6, 2016Assignee: Rohm and Haas Electronics Materials LLCInventors: Deyan Wang, Shintaro Yamada, Cong Liu, Mingqi Li, Joon-Seok Oh, Chunyi Wu, Doris Kang, Cheng-Bai Xu
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Publication number: 20120171626Abstract: New photoresist compositions are provided that comprise one or more materials that have base-reactive groups and are particularly useful for dry lithography. Particularly preferred photoresists of the invention can exhibit reduced defects following development of a coating layer of the resist.Type: ApplicationFiled: December 30, 2011Publication date: July 5, 2012Applicant: Rohm and Haas Electronic Materials LLCInventors: Deyan WANG, Shintaro Yamada, Cong Liu, Mingqi Li, Joon-Seok Oh, Chunyi Wu, Doris Kang, Cheng-Bai Xu
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Publication number: 20110255061Abstract: New photoresist compositions are provided that are useful for immersion lithography. Preferred photoresist compositions of the invention comprise one or more materials that have base-reactive groups. Particularly preferred photoresists of the invention can exhibit reduced leaching of resist materials into an immersion fluid contacting the resist layer during immersion lithography processing.Type: ApplicationFiled: December 13, 2010Publication date: October 20, 2011Applicant: Rohm and Haas Electronic Materials, L.L.C.Inventors: Deyan Wang, Jinrong Liu, Cong Liu, Doris Kang, Anthony Zampini, Cheng-Bai Xu
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Publication number: 20110003257Abstract: New lithographic processing methods are provided which are particularly useful in immersion lithography schemes. In one aspect, processes of the invention comprise: applying on a substrate a photoresist composition; exposing the photoresist layer to radiation activating for the photoresist composition; removing a portion but not all of the exposed photoresist layer; and developing the treated photoresist layer to provide a photoresist relief image.Type: ApplicationFiled: June 8, 2010Publication date: January 6, 2011Applicant: Rohm and Haas Electronic Materials LLCInventors: Deyan Wang, George G. Barclay, Thomas A. Estelle, Kenneth J. Spizuoco, Doris Kang