摘要:
A semiconductor apparatus on which a MOS transistor having an elevated source and drain structure is formed is arranged to have a gate electrode which is formed on the surface of a silicon substrate through an insulating film. An elevated source film and an elevated drain film each having at least a surface portion constituted by a metal silicide film, being conductive and elevated over the surface of the silicon substrate are formed on a source region and a drain region on the surface of the silicon substrate. Thus, a MOS transistor having a structure in which the surfaces of the source region and the drain region are elevated over the surface of the silicon substrate is formed. A first gate-side-wall insulating film is formed on the side wall of the gate electrode of the MOS transistor and having a bottom surface formed apart from the surface of the silicon substrate. A second gate-side-wall insulating film is formed between the first gate-side-wall insulating film and the gate electrode and on the bottom surface of the first gate-side-wall insulating film. The portion formed on the bottom surface exists in an inner bottom surface portion of the bottom surface of the first gate-sidewall insulating film adjacent to the gate electrode. The elevated source film and the elevated drain film are free from any facet in portions made contact with the first gate-side-wall insulating film.
摘要:
A semiconductor device of this invention includes an N-type semiconductor region functioning as a collector of a bipolar transistor, a silicon dioxide film doped with boron and formed in contact with the surface of the N-type semiconductor region, a P-type semiconductor region formed in contact with the silicon dioxide film doped with boron in the N-type semiconductor region and functioning as a base of the bipolar transistor, and an N-type semiconductor region formed in the P-type semiconductor region and functioning as an emitter of the bipolar transistor.
摘要:
A method of manufacturing a semiconductor device, which comprises the steps of forming a solid phase diffusion source containing a conductive impurity on a surface of a semiconductor substrate, said impurity serving to enable said semiconductor substrate to exhibit a p-type or n-type conductivity, allowing said solid phase diffusion source to contain a diffusion control substance serving to reduce or oxidize said conductive impurity upon heating so as to change the diffusion coefficient of the conductive impurity contained in the solid phase diffusion source, and thermally diffusing the conductive impurity from the solid phase diffusion source into the semiconductor substrate.
摘要:
According to the present invention, a method of manufacturing a semiconductor apparatus is provided which comprises the steps of (a) depositing a boron layer on a silicon substrate, and (b) thermally diffusing boron from said boron layer into said silicon substrate. The present invention, which is characteristically based on the solid phase diffusion process, enables even a thin layer to be deposited. Further, unlike the ion implantation process, the present invention enables an impurity to be uniformly diffused even into an inclined plane. Unlike the case where boron-containing glass is used as a diffusion source, the invention enables a sufficient amount of boron to be diffused even at a temperature lower than 1000.degree. C.
摘要:
A semiconductor device includes a silicon crystal layer on an insulating layer, the silicon crystal layer containing a crystal lattice mismatch plane, a memory cell array portion on the silicon crystal layer, the memory cell array portion including memory strings, each of the memory strings including nonvolatile memory cell transistors connected in series in a first direction, the memory strings being arranged in a second direction orthogonal to the first direction, the crystal lattice mismatch plane crossing the silicon crystal along the second direction without passing under gates of the nonvolatile memory cell transistors as viewed from a top of the silicon crystal layer, or crossing the silicon crystal along the first direction with passing under gates of the nonvolatile memory cell transistors as viewed from the top of the silicon crystal layer.
摘要:
Claimed and disclosed is a semiconductor device including a transistor having a gate insulating film structure containing nitrogen or fluorine in a compound, such as metal silicate, containing metal, silicon and oxygen, a gate insulating film structure having a laminated structure of an amorphous metal oxide film and metal silicate film, or a gate insulating film structure having a first gate insulating film including an oxide film of a first metal element and a second gate insulating film including a metal silicate film of a second metal element.
摘要:
A semiconductor device includes a single crystal silicon substrate an insulating layer partially formed on the single crystal silicon substrate, a single crystal silicon layer formed on the single crystal silicon substrate and the insulating layer, and containing a defect layer resulting from an excessive group IV element, and a plurality of first gate structures for memory cells, each including a first gate insulating film formed on the single crystal silicon layer, a charge storage layer formed on the first gate insulating film, a second gate insulating film formed on the charge storage layer, and a control gate electrode formed on the second gate insulating film.
摘要:
A method of manufacturing a MOS transistor incorporating a silicon oxide film serving as a gate insulating film and containing nitrogen and a polycrystalline silicon film serving as a gate electrode and containing a dopant and arranged such that the gate electrode is formed on the gate electrode insulating film, and an oxidation process using ozone is performed to sufficiently round the shape of the lower edge of the gate electrode.
摘要:
A method of manufacturing a MOS transistor incorporating a silicon oxide film serving as a gate insulating film and containing nitrogen and a polycrystalline silicon film serving as a gate electrode and containing a dopant and arranged such that the gate electrode is formed on the gate electrode insulating film, and an oxidation process using ozone is performed to sufficiently round the shape of the lower edge of the gate electrode.
摘要:
A method of manufacturing a MOS transistor incorporating a silicon oxide film serving as a gate insulating film and containing nitrogen and a polycrystalline silicon film serving as a gate electrode and containing a dopant and arranged such that the gate electrode is formed on the gate electrode insulating film, and an oxidation process using ozone is performed to sufficiently round the shape of the lower edge of the gate electrode.