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    • 7. 发明公开
    • Method for planarizing an integrated circuit structure
    • 平面化电极IC-Struktur。
    • EP0368504A2
    • 1990-05-16
    • EP89310921.5
    • 1989-10-24
    • APPLIED MATERIALS, INC.
    • Marks, JeffreyLaw, Kam ShingWang, David Nin-KouMaydan, Dan
    • H01L21/311H01L21/316
    • H01L21/31604H01L21/31055H01L21/76819
    • A planarizing process as disclosed for planarizing an integrated circuit structure (10) using a low melting inorganic planarizing material (30) which comprises depositing a low melting inorganic planarizing layer (3) such as a boron oxide glass over a layer of insulating material (20) such as an oxide of silicon and then dry etching the low melting inorganic planarizing layer (3) to planarize the structure. The method eliminates the need for separate coating, drying, and curing steps associated with the application of organic-based planarizing layers usually carried out outside of a vacuum apparatus. In a preferred embodiment, the deposition steps and the etching step are carried out without removing the integrated circuit structure from the vacuum apparatus. An additional etching step may be carried out after depositing the insulating layer (20) to remove any voids formed in the insulating layer (20).
    • 公开的用于使用低熔点无机平面化材料(30)平面化集成电路结构(10)的平面化方法,其包括在绝缘材料层(20)上沉积低熔点无机平面化层(3),例如氧化硼玻璃 ),然后干燥蚀刻低熔点无机平坦化层(3)以使结构平坦化。 该方法消除了与通常在真空装置外进行的有机基平坦化层的应用相关的单独涂布,干燥和固化步骤的需要。 在优选实施例中,沉积步骤和蚀刻步骤在不从真空装置中移除集成电路结构的情况下进行。 在沉积绝缘层(20)以去除在绝缘层(20)中形成的任何空隙之后,可以进行另外的蚀刻步骤。