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    • 4. 发明申请
    • METHOD OF PRODUCING A BURIED, LATERALLY INSULATED ZONE OF VERY HIGH CONDUCTIVITY IN A SEMICONDUCTOR SUBSTRATE
    • 为了制造方法埋,横向隔离区电导率增加在半导体衬底
    • WO1998003991A2
    • 1998-01-29
    • PCT/DE1997001542
    • 1997-07-22
    • SIEMENS AKTIENGESELLSCHAFTELBEL, NorbertGABRIC, ZvonimirNEUREITHER, Bernhard
    • SIEMENS AKTIENGESELLSCHAFT
    • H01L21/762
    • H01L21/76224
    • The invention concerns a method of producing a buried, laterally insulated zone of very high conductivity in a semiconductor substrate, the method comprising the following steps: a) a substrate with a buried zone of high conductivity is prepared; b) a reference layer is applied to the substrate; c) the reference layer is structured; d) a trench is produced in the substrate; and e) the insulation material used to fill the trench is applied to the resultant structure. The reference layer is selected such that the growth rate of the trench-filling insulation material on the reference material is lower by a factor of at least two than the growth rate of the trench-filling insulating material on the trench surface which is to be covered. This trench surface to be covered generally consists of substrate material but intermediate layers can also be provided.
    • 根据本发明,在半导体衬底中提供了用于产生增加的电导率的掩埋,横向绝缘区的方法,包括以下步骤:a)提供有增加的电导率的掩埋区的基板; b)向所述基底施加参考层; c)该参考层是图案化的; d)在衬底,沟槽产生; 和e)的结构由此生产中,用于填充沟槽的绝缘材料被施加,其中这样选择所述参考层,其用于通过至少为2的因子小于的生长速率填充所述参考层上的沟槽中的绝缘材料的生长速率 填充所述表面上的沟槽所使用的绝缘材料来覆盖所述沟槽的。 这些被覆盖的沟槽的表面通常由基板材料构成。 但它也可以是提供中间层。