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    • 18. 发明授权
    • Thermodynamically stable photoactive compound
    • 热力学稳定的光敏化合物
    • US5945516A
    • 1999-08-31
    • US82435
    • 1998-05-20
    • Harold F. SandfordAnthony Zampini
    • Harold F. SandfordAnthony Zampini
    • G03F7/022G03F7/023C07C245/12
    • G03F7/022G03F7/023
    • A method for converting a kinetically stable multiester of a naphthoquinone and an o-quinone diazide sulfonyl halide to a thermodynamically stable compound. The method comprises the steps of dissolving a phenol having at least two free phenolic hydroxyl groups and an o-naphthoquinone diazide sulfonyl halide in an aprotic solvent in the presence of a strong base, there being at least one mole of said naphthoquinone diazide sulfonyl halide per mole of phenol, reacting said phenol with said o-napthoquinone diazide sulfonyl halide until essentially of said o-naphthoquinone diazide sulfonyl halide is reacted with said polyhydroxy phenol, and following completion of said reaction, permitting the reaction product to remain in said solvent for a period of time of at least 15 minutes before recovering said photoactive compound The photoactive compound formed by the process is suitable for the formation of photoresists and is less apt to precipitate from solution during storage.
    • 一种将动力学稳定的萘醌和邻醌二叠氮磺酰卤的多酯转化为热力学稳定的化合物的方法。 该方法包括在强碱存在下将具有至少两个游离酚羟基的苯酚和邻萘醌二叠氮磺酰卤溶解在非质子传递溶剂中的步骤,至少有1摩尔所述萘醌二叠氮磺酰卤 摩尔的苯酚,使所述酚与所述邻萘醌二叠氮磺酰卤反应,直到基本上所述邻萘醌二叠氮磺酰卤与所述多羟基苯酚反应,并且在所述反应完成后,使反应产物保留在所述溶剂中 在回收所述光敏化合物之前的至少15分钟的时间段。通过该方法形成的光活性化合物适合于形成光致抗蚀剂,并且在储存期间较不易于从溶液中沉淀。