摘要:
A semiconductor device includes: a monocrystalline substrate; an inter-layer film formed on the monocrystalline substrate; a contact hole penetrating the inter-layer film and partially exposing an upper surface of the monocrystalline substrate; a sidewall formed on an inner surface of the contact hole; a plurality of first monocrystalline layers which include few defects, fill the contact hole, and cover the inter-layer film; and a plurality of second monocrystalline layers which include many defects and cover the sidewall and an upper surface of the inter-layer film so as to be sandwiched between the first monocrystalline layers and the inter-layer film.
摘要:
A semiconductor device includes a cylindrical capacitor. A size of hemispherical silicon grains (HSGs) formed in a straight portion of the cylindrical capacitor is smaller than a size of HSGs formed in a bowing portion of the cylindrical capacitor.
摘要:
A semiconductor device comprises a material layer including a first surface and a trench with an opening in the first surface. The trench is formed in the material layer. The trench comprises a tapered portion and a vertical portion. The tapered portion is in contact with the opening and comprises a scalloping-forming trench. The vertical portion has a substantially vertical sidewall. A width of the scalloping-forming trench is larger than a width of the vertical portion.