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Title:
POSITIVE RESIST COMPOSITION FOR LIFT-OFF METHOD AND PATTERN FORMING METHOD
Document Type and Number:
Japanese Patent JP2973874
Kind Code:
B2
Abstract:

PURPOSE: To provide a resist compsn. capable of forming a resist pattern ensuring high working precision and high reliability by a lift-off method and to provide a pattern forming method.
CONSTITUTION: A positive resist compsn. contg. novolak resin having repeating units represented by formula I as an alkali-soluble resin, a low nuclear body represented by formula II or III and having phenolic hydroxyl groups and 2-5 benzene rings as a dissolution inhibitor and a compd. having a 1,2- naphthoquinonediazido group represented by formula IV or V as a photosensitive agent is exposed and developed to form a resist pattern of a prescribed shape. In the formulae II, III, (i) is 1 or 2, each of (k), (m) and (p) is an integer of 0 to 3, (n) is an integer of 1 to 4, (q) is an integer of 1 to 3, (r) is 2 or 3, m+p+n≤6 and k+q≤5.


Inventors:
OKAZAKI SATOSHI
NISHIKAWA KAZUHIRO
KOBAYASHI MASARU
KOBAYASHI YOSHITAKA
UMEMURA MITSUO
ISHIHARA TOSHINOBU
Application Number:
JP16929995A
Publication Date:
November 08, 1999
Filing Date:
June 12, 1995
Export Citation:
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Assignee:
SHINETSU KAGAKU KOGYO KK
International Classes:
G03F7/004; G03F7/022; G03F7/023; G03F7/26; H01L21/027; H01L21/3205; (IPC1-7): G03F7/26; G03F7/004; G03F7/022; G03F7/023; H01L21/027; H01L21/3205
Domestic Patent References:
JP667418A
JP4299348A
JP411260A
JP3230164A
JP659445A
JP5204143A
JP4122938A
JP5323605A
JP210350A
JP3236216A
JP335654B2
Attorney, Agent or Firm:
Takashi Kojima