Method of polishing a tungsten-containing substrate
    42.
    发明授权
    Method of polishing a tungsten-containing substrate 有权
    抛光含钨基材的方法

    公开(公告)号:US07247567B2

    公开(公告)日:2007-07-24

    申请号:US10869397

    申请日:2004-06-16

    IPC分类号: H01L21/302 H01L21/461

    摘要: The invention provides a method of chemically-mechanically polishing a substrate comprising tungsten through use of a composition comprising a tungsten etchant, an inhibitor of tungsten etching, and water, wherein the inhibitor of tungsten polishing is a polymer, copolymer, or polymer blend comprising at least one repeating group comprising at least one nitrogen-containing heterocyclic ring or a tertiary or quaternary nitrogen atom. The invention further provides a chemical-mechanical polishing composition particularly useful in polishing tungsten-containing substrates.

    摘要翻译: 本发明提供了通过使用包含钨蚀刻剂,钨蚀刻抑制剂和水的组合物对包含钨的基材进行化学机械抛光的方法,其中所述钨抛光抑制剂是聚合物,共聚物或聚合物共混物,其包含在 至少一个包含至少一个含氮杂环或叔或季氮原子的重复基团。 本发明还提供了一种特别适用于抛光含钨衬底的化学机械抛光组合物。

    Polyamide containing the hexafluoroisopropylidene group
    46.
    发明授权
    Polyamide containing the hexafluoroisopropylidene group 失效
    含有六氟异亚丙基的聚酰胺

    公开(公告)号:US5077378A

    公开(公告)日:1991-12-31

    申请号:US526583

    申请日:1990-05-21

    IPC分类号: C08G69/26 C08G69/32 G03F7/023

    摘要: This invention is that of high temperature polyamides containing the hexafluoroisopropylidene group. The high temperature polyamides of the invention and photo or radiation sensitizers provide improved high temperature positive resists which can be developed in aqueous alkaline developer and thermally anneal to form heat resistant, polyoxazole relief structures suitable for use in microelectronic and printing applications. The positive photoresists of the invention have improved solubility in coating solvents and improved photospeed. The polyamides of the invention can be prepared by conventional condensation reactions; e.g. the condensation of a diamine and diacid chloride. In addition the polyamides of this invention provide high temperature protective coatings with superior adhesion properties in applications other than the photoresist area.

    摘要翻译: 本发明是含有六氟异亚丙基的高温聚酰胺。 本发明的高温聚酰胺和光或辐射敏化剂提供改进的高温正性抗蚀剂,其可以在含水碱性显影剂中显影并热退火以形成适用于微电子和印刷应用的耐热的聚恶唑消除结构。 本发明的正性光致抗蚀剂具有改进的涂料溶剂溶度和改进的感光速度。 本发明的聚酰胺可以通过常规的缩合反应制备; 例如 二胺和二酰氯的缩合。 此外,本发明的聚酰胺提供了除光刻胶区域之外的应用中具有优异粘合性能的高温保护涂层。

    Polyamide-polyamide and polybenzoxazole-polyamide polymer
    48.
    发明授权
    Polyamide-polyamide and polybenzoxazole-polyamide polymer 失效
    聚酰胺 - 聚酰胺和聚苯并恶唑 - 聚酰胺聚合物

    公开(公告)号:US4978734A

    公开(公告)日:1990-12-18

    申请号:US321039

    申请日:1989-03-09

    申请人: Dinesh N. Khanna

    发明人: Dinesh N. Khanna

    摘要: The present invention provides polyamide-polyamide and polybenzoxazole-polyamide polymers derived therefrom with improved processing and film characteristics having incorporated into the polymeric backbone the polymeric condensation residuum of novel aromatic diamino compounds having the formula: ##STR1## wherein A is selected from the group consisting of SO.sub.2, O, S, CO, C.sub.1 to C.sub.6 alkylene, perfluoroalkylene or perfluoroalkylene having from 1 to 10 carbon atoms and a bond directly linking the two aromatic groups and R is selected from the group consisting of hydrogen, hydroxy and C.sub.1 to C.sub.4 alkoxy.The polyamide-polyamide polymers of this invention are prepared by reacting compounds of the above formula, alone or admixed with othr aromatic diamines, with one or more aromatic or aliphatic dicarboxylic acid or amide-forming derivatives thereof. Polybenzoxazole-polyamide drivatives of such polyamide-polyamide polymers are prepared utilizing compounds of the above formula wherein R is hydroxy or C.sub.1 to C.sub.4 alkoxy, and by subjecting the resulting alkoxy or hydroxy-substituted polyamide-polyamide to a dehydrating and cyclizing reaction to form the oxazole linkage which gives rise to polybenzoxazole-polyamide polymer.

    Process for insolublizing solvent soluble polyimide compositions
    49.
    发明授权
    Process for insolublizing solvent soluble polyimide compositions 失效
    不溶解溶剂可溶性聚酰亚胺组合物的方法

    公开(公告)号:US4877653A

    公开(公告)日:1989-10-31

    申请号:US217796

    申请日:1988-07-12

    IPC分类号: B05D3/02

    摘要: A method of insolubilizing solvent soluble polyimides comprising the imidized condensation products of an aromatic dianhydride and a primary aromatic diamine wherein at least one of said dianhydride or diamine is selected from the group consisting of 2,2-hexafluoro-bis(3,4-dicarboxyphenyl)propane dianhydride; 2,2-hexafluoro-bis(3-aminophenyl) propane; 2,2-hexafluoro-bis(4-aminophenyl)propane; 2,2-hexafluoro-bis-[4-(3-aminophenoxy)phenyl]propane; 2,2-hexafluoro-bis[4-(4-aminophenoxy)phenyl]propane; 1,1-bis(4-aminophenyl)-1-phenyl-2,2,2-trifluoroethane; 1,1-bis-[4-(1,2-dicarboxyphenyl)]-1-phenyl-2,2,2-trifluoroethane dianhydride and mixtures thereof.The method comprises forming a shaped article or film comprising the polyimides and subjecting same to a heat annealing process at a temperature of at least 325.degree. C. and for a period of time sufficient to insolubilize the polyimide. Preferred temperatures range from 350.degree. C. to 400.degree. C. for a period of time of at least 45 minutes to about 2 hours.

    摘要翻译: 一种不溶解溶剂可溶性聚酰亚胺的方法,其包括芳族二酐和伯芳族二胺的酰亚胺化缩合产物,其中所述二酐或二胺中的至少一种选自2,2-六氟双(3,4-二羧基苯基 )丙烷二酐; 2,2-三氟 - 双(3​​-氨基苯基)丙烷; 2,2-四氟 - 双(4-氨基苯基)丙烷; 2,2-二氟 - 双 - [4-(3-氨基苯氧基)苯基]丙烷; 2,2-六氟双[4-(4-氨基苯氧基)苯基]丙烷; 1,1-双(4-氨基苯基)-1-苯基-2,2,2-三氟乙烷; 1,1-双 - [4-(1,2-二羧基苯基)] -1-苯基-2,2,2-三氟乙烷二酐及其混合物。 该方法包括形成包含聚酰亚胺的成形制品或薄膜,并在至少325℃的温度下进行热退火处理,并使其持续足以使聚酰亚胺不溶化的时间。 优选的温度为350℃至400℃,时间为至少45分钟至约2小时。