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公开(公告)号：GB1244766A
公开(公告)日：1971-09-02
申请号：GB75871
申请日：1968-08-26
Applicant: IBM
IPC: C07D513/04 , G03G5/06
Abstract: 1,244,766. Bisbenzothiazoles. INTERNATIONAL BUSINESS MACHINES CORP. 26 Aug., 1968 [18 Sept., 1967], No. 758/71. Heading C2C. Bisbenzothiazoles of the general formula (wherein R is hydrogen or a lower alkyl group of from 1 to 4 carbon atoms) may be prepared by treating a p - phenylene bisthiourea with bromine and chloroform, and basifying the product. 2,5 - Dimethyl - 1,4 - phenylene bisthiourea is prepared from 2,5 - dimethyl - p - phenylenediamine dihydrochloride and aqueous ammonium thiocyanate.
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公开(公告)号：DE69230684T2
公开(公告)日：2000-08-17
申请号：DE69230684
申请日：1992-10-23
Applicant: IBM
Inventor： CLECAK NICHOLAS JEFFRIES , WILLSON CARLTON GRANT , MCDONALD SCOTT ARTHUR , CONLEY WILLARD EARL , KWONG RANEE WAI-LING , SCHLOSSER HUBERT , LINEHAN LEO LAWRENCE , SACHDEV HARBANS SINGH
IPC: G03F7/004 , G03F7/029 , G03F7/038 , G03F7/039 , G03F7/26 , G03F7/36 , G03F7/38 , H01L21/027 , H01L21/30
Abstract: Dry developable top surface imageable photoresist compositions which comprise, in admixture, a film-forming aromatic polymer resin activated to electrophilic substitution, an acid catalyzable agent capable of bing inserted into the aromatic polymer resin, and a radiation degradable acid generating compound and processes for generating positive tone resist images on substrates therewith.
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Patent Agency Ranking
公开(公告)号：DE69230684D1
公开(公告)日：2000-03-23
申请号：DE69230684
申请日：1992-10-23
Applicant: IBM
Inventor： CLECAK NICHOLAS JEFFRIES , WILLSON CARLTON GRANT , MCDONALD SCOTT ARTHUR , CONLEY WILLARD EARL , KWONG RANEE WAI-LING , SCHLOSSER HUBERT , LINEHAN LEO LAWRENCE , SACHDEV HARBANS SINGH
IPC: G03F7/004 , G03F7/029 , G03F7/038 , G03F7/039 , G03F7/26 , G03F7/36 , G03F7/38 , H01L21/027 , H01L21/30
Abstract: Dry developable top surface imageable photoresist compositions which comprise, in admixture, a film-forming aromatic polymer resin activated to electrophilic substitution, an acid catalyzable agent capable of bing inserted into the aromatic polymer resin, and a radiation degradable acid generating compound and processes for generating positive tone resist images on substrates therewith.
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公开(公告)号：DE69324439T2
公开(公告)日：1999-11-25
申请号：DE69324439
申请日：1993-10-29
Applicant: IBM
Inventor： BREYTA GREGORY , CLECAK NICHOLAS JEFFRIES , HINSBERG III WILLIAM DINAN , HOFER DONALD CLIFFORD , ITO HIROSHI , MACDONALD SCOTT ARTHUR , SOORIJAKUMARAN RATMAN
Abstract: A lithographic imaging process is provided for use in the manufacture of integrated circuits. A substrate is coated with a polymeric film comprising a vinyl polymer, a photosensitive acid generator, and acid labile groups. It is then heated to typically just above the glass transition temperature of the polymer, but below the cleavage temperature of the acid labile groups. The film is then expose imagewise to radiation to generate free acid, and the film is once more heated, again to typically just above the glass transition temperature of the polymer, but below the cleavage temperature of the acid labile groups. Finally the image is developed. The process provides protection to the photoresist film from airborne chemical contaminants.
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公开(公告)号：DE3480956D1
公开(公告)日：1990-02-08
申请号：DE3480956
申请日：1984-10-26
Applicant: IBM
Inventor： CLECAK NICHOLAS JEFFRIES , COX ROBERT JAMES , FENG JOSEPH SHAO-YING , LEFF JERRY
IPC: G02F1/13 , G02F1/133 , G02F1/1335 , G02F1/1337
Abstract: The orientation of the alignment layer in a raster-scanned thermally addressed smectic liquid crystal display device can be chosen relative to the writing orientation to accentuate a selected characteristic. A perpendicular alignment with respect to the scan direction produces uniformly written images in both scan directions to allow high quality bidirectional writing. A perpendicular alignment with respect to the scan direction produces uniformly written images in both scan directions to allow high quality bidirectional writing. Parallel alignment maximizes the contrast in unidirectional writing. Antiparallel alignment increases the selective erase window and improves the resolution in unidirectionally written pages. In a preferred embodiment the liquid crystal cell includes a liquid crystal material comprising 4-octyloxy-4'-cyanobiphenyl 37.5%, 4-decyl-4'-cyanobiphenyl 36.8% weight percent and 4-undecyl-4'-cyanobiphenyl 25.7 weight percent.The drawing shows an LC cell comprising glass substrates 10, 12 having an outer anti reflection coating 8, 21. The substrate 10 carries a second anti reflection coating 10A, a conductive, metal, light absorbing layer 18, the reflective aluminium layer 20, an insulating silicon dioxide layer 19 and the alignment layer 22. The substrate 12 carries the second alignment layer 27 and a transparent conductor layer 24. The laser beam 7 sweeps in a direction perpendicular to the plane of the paper and increments vertically. The alignment layers 22, 27 are put down so that the liquid crystal directors are orientated parallel to the plane of the layers 22, 27 and perpendicular to the sweep direction of the laser beam.
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公开(公告)号：GB1244767A
公开(公告)日：1971-09-02
申请号：GB75971
申请日：1968-08-26
Applicant: IBM
IPC: C07D213/73 , C07D513/04 , C07D513/14 , C09B35/34 , G03G5/06
Abstract: 1,244,767. Methin, azamethin and azo dyes. INTERNATIONAL BUSINESS MACHINES CORP. 26 Aug., 1968 [18 Sept., 1967], No. 759/71 Divided out of 1,244,764. Heading C4P. [Also in Division C2] Methine, azamethine and azo dyes are of formulµ- (in which R is halogen or 1-4 C alkyl or alkoxy; R 2 and R 3 are both R 5 -(CH = CH) n -CH = N-, R 5 -(CH=CH) m - or R 5 -N=NR 5 is C 6 H 5 - or p-(CH 3 ) 2 N-C 6 H 4 -; n is 0-3, m is 1-4). The methine and azamethine dyes are prepared by condensing an aldehyde with a compound in which R 2 and R 3 are NH 2 or CH 3 (see Division C2). The azo dyes are prepared by reacting N,N-dimethylaniline with the diazotization product of a compound in which R 2 and R 3 are NH 2 .
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