Abstract:
The present invention provides a method of fabricating a HV MOS transistor device, including forming a deep well in a substrate, and the deep well; forming a first doped region in the deep well, and the first doped region, wherein a doping concentration of the first doped region and a doping concentration of the deep well in at least one electric field concentration region has a first ratio, the doping concentration of the first doped region and the doping concentration of the deep well outside the electric field concentration region has a second ratio, and the first ratio is greater than the second ratio; and forming a high voltage well in the substrate, and forming a second doped region and a third doped region respectively in the deep well and in the high voltage well.
Abstract:
An integrated circuit (IC) structure includes a substrate having several regions, several semiconductor devices formed at the substrate and respectively within the regions, and an ultra-deep (UD) trench isolation structure formed in the substrate. The substrate has a top surface and a bottom surface oppositely, and the UD trench isolation structure formed in the substrate surrounds peripheries of each of the regions for structurally and physically isolating the semiconductor devices within different regions. The UD trench isolation structure penetrates the substrate by extending from the top surface of the substrate to the bottom surface of the substrate.
Abstract:
A method of forming a layout definition of a semiconductor device includes the following steps. Firstly, a plurality of first patterns is established to form a material layer over a substrate, with the first patterns being regularly arranged in a plurality of columns along a first direction to form an array arrangement. Next, a plurality of second patterns is established to surround the first patterns. Then, a third pattern is established to form a blocking layer on the material layer, with the third pattern being overlapped with a portion of the second patterns and with at least one of the second patterns being partially exposed from the third pattern. Finally, the first patterns are used to form a plurality of first openings in a stacked structure on the substrate to expose a portion of the substrate respectively.
Abstract:
A method for fabricating semiconductor device includes the steps of: forming a bit line structure on a substrate; forming a first spacer, a second spacer, and a third spacer around the bit line structure; forming an interlayer dielectric (ILD) layer on the bit line structure; planarizing part of the ILD layer; removing the ILD layer and the second spacer to form a recess between the first spacer and the third spacer; and forming a liner in the recess.
Abstract:
An integrated circuit (IC) structure includes a substrate having several regions, several semiconductor devices formed at the substrate and respectively within the regions, and an ultra-deep (UD) trench isolation structure formed in the substrate. The substrate has a top surface and a bottom surface oppositely, and the UD trench isolation structure formed in the substrate surrounds peripheries of each of the regions for structurally and physically isolating the semiconductor devices within different regions. The UD trench isolation structure penetrates the substrate by extending from the top surface of the substrate to the bottom surface of the substrate.
Abstract:
A method for fabricating semiconductor device includes the steps of: forming a bit line structure on a substrate; forming a first spacer, a second spacer, and a third spacer around the bit line structure; forming an interlayer dielectric (ILD) layer on the bit line structure; planarizing part of the ILD layer; removing the ILD layer and the second spacer to form a recess between the first spacer and the third spacer; and forming a liner in the recess.
Abstract:
According to an embodiment of the present invention, a method for fabricating semiconductor device includes the steps of: forming a semiconductor layer on a substrate; removing part of the semiconductor layer and part of the substrate to form a trench; forming a liner in the trench; removing part of the liner to form a spacer adjacent to two sides of the trench; and forming a bit line structure in the trench.
Abstract:
A method of forming a layout definition of a semiconductor device includes the following steps. Firstly, a plurality of first patterns is established to form a material layer over a substrate, with the first patterns being regularly arranged in a plurality of columns along a first direction to form an array arrangement. Next, a plurality of second patterns is established to surround the first patterns. Then, a third pattern is established to form a blocking layer on the material layer, with the third pattern being overlapped with a portion of the second patterns and with at least one of the second patterns being partially exposed from the third pattern. Finally, the first patterns are used to form a plurality of first openings in a stacked structure on the substrate to expose a portion of the substrate respectively.
Abstract:
The present invention provides a semiconductor structure including a substrate including a plurality of capacitor lower electrodes, the capacitor lower electrodes are arranged in a diamond array along a first direction and a second direction respectively, the first direction and the second direction are not perpendicular to each other. A supporting structure layer contacts at least parts of the capacitor lower electrodes, wherein the supporting structure layer includes a plurality of triangular openings, and the three corners of each triangular opening are overlapped with three adjacent capacitor lower electrodes respectively.
Abstract:
An integrated circuit (IC) structure includes a substrate having several regions, several semiconductor devices formed at the substrate and respectively within the regions, and an ultra-deep (UD) trench isolation structure formed in the substrate. The substrate has a top surface and a bottom surface oppositely, and the UD trench isolation structure formed in the substrate surrounds peripheries of each of the regions for structurally and physically isolating the semiconductor devices within different regions. The UD trench isolation structure penetrates the substrate by extending from the top surface of the substrate to the bottom surface of the substrate.