Fractionated novolak resin and photoresist composition therefrom
    81.
    发明授权
    Fractionated novolak resin and photoresist composition therefrom 失效
    分馏的酚醛清漆树脂及其光致抗蚀剂组合物

    公开(公告)号:US6045966A

    公开(公告)日:2000-04-04

    申请号:US991034

    申请日:1997-12-15

    CPC分类号: G03F7/0236 C08G8/00 C08G8/08

    摘要: The present invention provides a method for producing a film forming, fractionated novolak resin having consistent molecular weight and superior performance in photoresist composition, by isolating such a novolak resin fraction. A method is also provided for producing photoresist composition from such a fractionated novolak resin and for producing semiconductor devices using such a photoresist composition.

    摘要翻译: 本发明提供通过分离这种酚醛清漆树脂级分来制备具有一致的分子量和光致抗蚀剂组合物性能优异的成膜分级酚醛清漆树脂的方法。 还提供了一种从这种分级酚醛清漆树脂制备光致抗蚀剂组合物并用于制备使用这种光致抗蚀剂组合物的半导体器件的方法。

    Metal ion reduction in novolak resins solution in PGMEA by chelating ion
exchange resin
    86.
    发明授权
    Metal ion reduction in novolak resins solution in PGMEA by chelating ion exchange resin 失效
    通过螯合离子交换树脂在PGMEA中酚醛清漆树脂溶液中的金属离子还原

    公开(公告)号:US5614352A

    公开(公告)日:1997-03-25

    申请号:US366614

    申请日:1994-12-30

    申请人: M. Dalil Rahman

    发明人: M. Dalil Rahman

    摘要: The present invention provides methods for producing water insoluble, aqueous alkali soluble novolak resins having a very low level of metal ions, utilizing treated chelated ion exchange resins to make the neutral ammonium salt or acid form. A method is also provided for producing photoresist composition having a very low level of metal ions from such novolak resins and for producing semiconductor devices using such photoresist compositions.

    摘要翻译: 本发明提供了使用经过处理的螯合离子交换树脂制备中性铵盐或酸形式的具有非常低水平金属离子的水不溶性水溶性酚醛清漆树脂的方法。 还提供了一种用于生产具有来自这种酚醛清漆树脂的非常低水平的金属离子并且使用这种光致抗蚀剂组合物制造半导体器件的光致抗蚀剂组合物的方法。

    Metal ion reduction in novolak resins and photoresists
    88.
    发明授权
    Metal ion reduction in novolak resins and photoresists 失效
    酚醛清漆树脂和光致抗蚀剂中的金属离子还原

    公开(公告)号:US5580949A

    公开(公告)日:1996-12-03

    申请号:US458588

    申请日:1995-06-02

    CPC分类号: C08G8/08 G03F7/0236

    摘要: The present invention provides methods for producing water insoluble, aqueous alkali soluble novolak resins having a very low level of metal ions, utilizing treated ion exchange resins. A method is also provided for producing photoresist composition having a very low level of metal ions from such novolak resins and for producing semiconductor devices using such photoresist compositions.

    摘要翻译: 本发明提供了利用处理的离子交换树脂生产具有非常低的金属离子含量的水不溶性碱性水溶性酚醛清漆树脂的方法。 还提供了一种用于生产具有来自这种酚醛清漆树脂的非常低水平的金属离子并且使用这种光致抗蚀剂组合物制造半导体器件的光致抗蚀剂组合物的方法。