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    • 4. 发明授权
    • Method of manufacturing a semiconductor device and such a semiconductor device
    • 制造半导体器件和这种半导体器件的方法
    • US07772646B2
    • 2010-08-10
    • US11574338
    • 2005-08-10
    • Josine Johanna Gerarda Petra LooVincent Charles VeneziaYouri Ponomarev
    • Josine Johanna Gerarda Petra LooVincent Charles VeneziaYouri Ponomarev
    • H01L29/78H01L21/84
    • H01L21/76243Y10S438/981
    • There is a method of manufacturing a semiconductor device with a semiconductor body comprising a semiconductor substrate and a semiconductor region which are separated from each other with an electrically insulating layer which includes a first and a second sub-layer which, viewed in projection, are adjacent to one another, wherein the first sub-layer has a smaller thickness than the second sub-layer, and wherein, in a first sub-region of the semiconductor region lying above the first sub-layer, at least one digital semiconductor element is formed and, in a second sub-region of the semiconductor region lying above the second sub-layer, at least one analog semiconductor element is formed.According to an example embodiment, the second sub-layer is formed in that the lower border thereof is recessed in the semiconductor body in relation to the lower border of the first sub-layer Fully depleted SOI devices are thus formed.
    • 制造具有半导体本体的半导体器件的方法,该半导体器件包括半导体衬底和半导体区域,该半导体衬底和半导体区域由电绝缘层彼此分离,所述电绝缘层包括第一和第二子层,该第一子层和第二子层在投影中是相邻的 其中,所述第一子层的厚度小于所述第二子层的厚度,并且其中,在位于所述第一子层之上的所述半导体区域的第一子区域中,形成至少一个数字半导体元件 并且在位于第二子层上方的半导体区域的第二子区域中,形成至少一个模拟半导体元件。 根据示例实施例,第二子层形成为其下边界相对于第一子层的下边界凹陷在半导体本体中。因此形成完全耗尽的SOI器件。
    • 5. 发明申请
    • METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE AND SUCH A SEMICONDUCTOR DEVICE
    • 制造半导体器件的方法及其半导体器件
    • US20090166799A1
    • 2009-07-02
    • US11574338
    • 2005-08-10
    • Josine Johanna Gerarda Petra LooVincent Charles VeneziaYouri Ponomarev
    • Josine Johanna Gerarda Petra LooVincent Charles VeneziaYouri Ponomarev
    • H01L29/66H01L21/322
    • H01L21/76243Y10S438/981
    • The invention relates to a method of manufacturing a semiconductor device (10) with a semiconductor body (1) comprising a semiconductor substrate (2) and a semiconductor region (3) which are separated from each other by means of an electrically insulating layer (4) which comprises a first and second sublayer (4A, 4B) that are viewed in projection adjacent to each other, whereby the first sublayer (4A) is provided with a smaller thickness than the second sublayer (4B) and whereby in a first subregion (3B) of the semiconductor region (3) lying above the first sublayer (4A) at least one digital semiconductor element (5) is formed and in a second subregion (3B) of the semiconductor region (3) lying above the second sublayer (4B) at least one analogue semiconductor element (6) is formed.According to the invention the second sublayer (4B) is formed in such a way that the lower border thereof is in relation to the lower border of the first sublayer (4A) formed sunken in the semiconductor body (1). In this way the formation of so called FD (=Fully Depleted) SOI devices (10) is made easy. Preferably, the sublayers (4A, 4B) are formed using a thermal oxidation that is locally enhanced or retarded (prevented). The semiconductor region (3) is preferably formed by using a substrate transfer technique.
    • 本发明涉及一种制造具有半导体本体(1)的半导体器件(10)的方法,半导体器件(1)包括通过电绝缘层(4)彼此分离的半导体衬底(2)和半导体区域(3) ),其包括在彼此相邻的突起中观察的第一和第二子层(4A,4B),由此所述第一子层(4A)设置有比所述第二子层(4B)更小的厚度,并且由此在第一子区域 如图3B所示,位于第一子层(4A)上方的半导体区域(3)形成至少一个数字半导体元件(5),并且位于第二子层(4B)上方的半导体区域(3)的第二子区域(3B) )形成至少一个模拟半导体元件(6)。 根据本发明,第二子层(4B)以这样的方式形成,使得其下边界相对于形成在半导体本体(1)中凹陷的第一子层(4A)的下边界。 以这种方式,使得所谓的FD(=完全耗尽)SOI器件(10)的形成变得容易。 优选地,使用局部增强或延迟(防止)的热氧化形成子层(4A,4B)。 半导体区域(3)优选通过使用基板转印技术形成。