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    • 4. 发明授权
    • Positive-working photosensitive composition and process for image
formation
    • 正性感光组合物和成像方法
    • US5958646A
    • 1999-09-28
    • US569316
    • 1995-12-08
    • Koichi KawamuraSatoshi TakitaKeiji AkiyamaYoshitaka Kawamura
    • Koichi KawamuraSatoshi TakitaKeiji AkiyamaYoshitaka Kawamura
    • G03F7/022G03F7/00G03F7/023G03F7/033G03F7/039G03F7/30H01L21/027G03C1/52
    • G03F7/0233
    • Disclosed are (i) a positive-working photosensitive composition containing (a) a polymer having at least 60 mol % structural units represented by formula (1): ##STR1## wherein A represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 4 carbon atoms; X represents --CO-- or --SO.sub.2 --; Y represents --CO--R.sub.1 or --SO.sub.2 --R.sub.1, where R.sub.1 represents an alkyl group, a substituted alkyl group wherein the substituent on the substituted alkyl group is a halogen atom, an aryl group, an amido group, an alkoxy group or an alkoxycarbonyl group, an unsubstituted aromatic group, or a substituted aromatic group wherein the substituent on the substituted aromatic group is a halogen atom, an alkyl group, an alkoxy group having 1 to 10 carbon atoms, an amido group or an aryl group, provided that at least one of X and Y contains --SO.sub.2 --and (b) a o-naphthoquinone diazide, and (ii) a process for image formation which comprises image-wise exposing to light a photosensitive material having a photosensitive layer comprising the positive-working photosensitive composition and then developing the resulting photosensitive material with an aqueous alkali solution having a pH of 12.5 or below.
    • 公开了(i)正性光敏组合物,其含有(a)具有式(1)表示的至少60摩尔%结构单元的聚合物:其中A表示氢原子,卤素原子或具有1〜 4个碳原子; X表示-CO-或-SO 2 - ; Y表示-CO-R1或-SO2-R1,其中R1表示烷基,取代烷基上的取代基为卤素原子,芳基,酰胺基,烷氧基或烷氧基羰基的取代烷基 基团,取代芳基或取代芳基,其中取代芳基上的取代基为卤素原子,烷基,具有1-10个碳原子的烷氧基,酰胺基或芳基,条件是在 X和Y中的至少一个含有-SO 2 - 和(b)邻萘醌二叠氮,以及(ii)图像形成方法,其包括使具有感光层的感光材料成像曝光于光敏层,所述光敏材料包含正性感光层 然后用pH为12.5以下的碱性水溶液显影所得的感光材料。
    • 6. 发明授权
    • Method of making multi-layer circuit board
    • 制作多层电路板的方法
    • US07849593B2
    • 2010-12-14
    • US11628478
    • 2005-05-31
    • Koichi KawamuraTakeyoshi Kano
    • Koichi KawamuraTakeyoshi Kano
    • H05K3/02
    • H05K3/386H05K3/381H05K3/4644H05K3/4652H05K2203/1163H05K2203/1168Y10T29/49117Y10T29/49155Y10T29/49165
    • The invention provides a multi-layer circuit board sequentially having an insulating substrate, a first electrically conductive pattern arbitrarily formed, an insulating material layer and a second electrically conductive pattern formed by providing an electrically conductive material on a graft polymer pattern formed on the insulating material layer, and having an electrically conductive path which electrically connects the first electrically conductive pattern present on the insulating substrate and the second electrically conductive pattern. The graft polymer pattern includes a combination of a region where a graft polymer is present and a region where no graft polymer is present, or a combination of a region where a hydrophilic graft polymer is present and a region where a hydrophobic graft polymer is present.
    • 本发明提供一种多层电路板,其顺序地具有绝缘基板,任意形成的第一导电图案,绝缘材料层和通过在形成于绝缘材料上的接枝聚合物图案上提供导电材料而形成的第二导电图案 并且具有将存在于绝缘基板上的第一导电图案与第二导电图案电连接的导电路径。 接枝聚合物图案包括存在接枝聚合物的区域和不存在接枝聚合物的区域的组合,或存在亲水接枝聚合物的区域和存在疏水接枝聚合物的区域的组合。