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    • 4. 发明授权
    • Method of producing a semiconductor device
    • 半导体装置的制造方法
    • US4376664A
    • 1983-03-15
    • US155124
    • 1980-05-30
    • Osamu HataishiYoshinobu Momma
    • Osamu HataishiYoshinobu Momma
    • H01L21/76H01L21/20H01L21/26
    • H01L21/76
    • In a case where a semiconductor device is produced comprising at least one semiconductor element, an isolation region surrounding the semiconductor element and a thick silicon oxide layer lying on and around the semiconductor element, the thick oxide layer is formed by thermal-oxidizing the epitaxial layer having a buried layer and, at the same time, the isolation region is formed in the epitaxial layer by heating for thermal oxidation. Prior to a step of introducing impurities into the epitaxial layer, the epitaxial layer is covered by an anti-oxidation masking layer, an insulating layer and a photo resist layer. Subsequent to the step of introducing impurities, the anti-oxidation masking layer is shaped into a pattern mask for the thermal-oxidation treatment.
    • 在制造包括至少一个半导体元件的半导体器件,围绕半导体元件的隔离区域和位于半导体元件周围和周围的厚氧化硅层的情况下,通过热氧化外延层形成厚氧化物层 具有掩埋层,并且同时通过加热进行热氧化而在外延层中形成隔离区。 在将杂质引入外延层的步骤之前,外延层被抗氧化屏蔽层,绝缘层和光致抗蚀剂层覆盖。 在引入杂质的步骤之后,将抗氧化掩模层成型为用于热氧化处理的图案掩模。