Semiconductor structure having two levels of buried regions
    2.
    发明授权
    Semiconductor structure having two levels of buried regions 失效
    具有两层埋藏区域的半导体结构

    公开(公告)号:US5889315A

    公开(公告)日:1999-03-30

    申请号:US393622

    申请日:1995-02-23

    摘要: Integrated circuits suitable for high-performance applications, especially mixed signal products that have analog and digital sections, are fabricatable from a semiconductor structure having two levels of buried regions. In a typical embodiment lower buried regions of opposite conductivity types are situated along a lower semiconductor interface between a semiconductive substrate and an overlying lower semiconductive layer. Upper buried regions of opposite conductivity type are similarly situated along an upper semiconductor interface between the lower semiconductive layer and an overlying upper semiconductive layer. The upper semiconductive layer contains P-type and N-type device regions in which transistor zones are situated. The semiconductor structure is normally configured so that at least one of each of the P-type and N-type device regions is electrically isolated from the substrate. Complementary bipolar transistors can be integrated with complementary field-effect transistors in the structure.

    摘要翻译: 适合于高性能应用的集成电路,特别是具有模拟和数字部分的混合信号产品,可从具有两级埋入区域的半导体结构制造。 在典型的实施例中,相反导电类型的较低掩埋区域沿着半导体衬底和上覆下半导体层之间的下半导体界面设置。 相反导电类型的上掩埋区类似地位于下半导体层和上半导电层之间的上半导体界面处。 上半导体层包含晶体管区所在的P型和N型器件区。 半导体结构通常被配置为使得每个P型和N型器件区域中的至少一个与衬底电隔离。 互补双极晶体管可以与结构中的互补场效应晶体管集成。

    Method of manufacturing a semiconductor device with double structured
well
    4.
    发明授权
    Method of manufacturing a semiconductor device with double structured well 失效
    制造具有双重结构井的半导体器件的方法

    公开(公告)号:US5536665A

    公开(公告)日:1996-07-16

    申请号:US442928

    申请日:1995-05-17

    摘要: A semiconductor device includes a p-type silicon substrate, a first well of p-type formed in a major surface of the silicon substrate, and a second well of n-type formed close to the first well in the major surface of the silicon substrate. A third well of p-type is formed inside the second well and, furthermore, a conductive layer including p-type impurities of higher concentration than that of the first well is formed as extending immediately below both the first well and the second well. In accordance with this structure, even if minority carriers are injected, they recombine and disappear in the conductive layer, so that the implantation of the carriers into the first well is prevented. As a result, various disadvantageous phenomena due to the injection of the minority carriers are prevented and a semiconductor device having a stable device characteristic and high integration density is provided.

    摘要翻译: 半导体器件包括p型硅衬底,形成在硅衬底的主表面中的p型第一阱和在硅衬底的主表面中靠近第一阱形成的n型第二阱 。 在第二阱内形成第三阱p型,此外,形成包含比第一阱高的浓度的p型杂质的导电层,直接在第一阱和第二阱的正下方延伸。 根据该结构,即使注入少量载流子,它们在导电层中复合并消失,从而防止载流子注入到第一阱中。 结果,防止了由于少数载流子的注入引起的各种不利现象,并且提供了具有稳定的器件特性和高集成度的半导体器件。

    Method of forming high speed, high voltage fully isolated bipolar
transistors on a SOI substrate
    8.
    发明授权
    Method of forming high speed, high voltage fully isolated bipolar transistors on a SOI substrate 失效
    在SOI衬底上形成高速,高电压全隔离双极晶体管的方法

    公开(公告)号:US5344785A

    公开(公告)日:1994-09-06

    申请号:US72653

    申请日:1993-06-03

    摘要: A method of manufacturing various types of silicon devices, such as complementary bipolar PNP and NPN transistors, in a Silicon On Insulator ("SOI") Integrated Circuit ("IC"), the SOI IC having a substrate, a buried insulating layer disposed above the substrate, and a silicon device layer disposed above the insulating layer. Vertical transistors may be formed in the device layer such that each transistor is fully dielectrically isolated from another and also from other similarly manufactured silicon devices in the silicon device layer.

    摘要翻译: 在硅绝缘体(“SOI”)集成电路(“IC”)中制造各种类型的硅器件(例如互补双极性PNP和NPN晶体管)的方法,具有衬底的SOI IC,设置在上面的掩埋绝缘层 衬底和设置在绝缘层上方的硅器件层。 可以在器件层中形成垂直晶体管,使得每个晶体管完全介电地与另一晶体管隔离,也可以与硅器件层中的其它类似制造的硅器件完全介电隔离。