摘要:
A semiconductor structure comprising: a. A monocrystalline substrate (1) having a top surface, b. A non-crystalline structure (2) overlying said monocrystalline substrate and comprising an opening having a width smaller than 10 microns and exposing part of the top surface of said monocrystalline substrate, c. A buffer structure (3) having a bottom surface abutting said part and a top surface having less than 10 8 threading dislocations per cm 2 , said buffer structure (3) being made of a material having a first lattice constant, and d. One or more group IV monocrystalline structures (4) abutting said buffer structure (3) and being made of a material having a second lattice constant, different from said first lattice constant.
摘要:
A method for manufacturing a transistor device comprising a channel layer, the method comprising: - providing a substrate; - epitaxially growing a strained layer on the substrate (defect free); - epitaxially growing the channel layer on the epitaxially grown strained layer. - proving a gate structure on the channel layer, - selectively etching into the channel layer and at least partially in the epitaxially grown strained layer, thereby using the gate structure as a mask, and thereby creating a protrusion extending from the substrate, the protrusion comprising a portion of the channel layer and at least an upper portion of the epitaxially grown strained layer, allowing elastic relaxation in the portions.
摘要:
A vertical Fin-FET semiconductor device comprising: a. a semiconductor substrate, b. a current-blocking structure disposed on the semiconductor substrate and comprising: i. a first layer of a first conductive type, ii. a layer of a second conductive type overlaying the first layer, iii. a second layer of the first conductive type overlying the layer of the second conductive type, and
c. at least one vertical semiconductor fin disposed on the current-blocking structure, wherein said fin comprises the following portions: i. a doped bottom portion contacting the current-blocking structure, ii. a doped top portion opposite to the doped bottom portion, and iii. an undoped portion present between the doped bottom portion and the doped top portion. A method to produce the same.
摘要:
A method for manufacturing a transistor device comprising a channel layer, the method comprising: - providing a substrate; - epitaxially growing a strained layer on the substrate (defect free); - epitaxially growing the channel layer on the epitaxially grown strained layer. - proving a gate structure on the channel layer, - selectively etching into the channel layer and at least partially in the epitaxially grown strained layer, thereby using the gate structure as a mask, and thereby creating a protrusion extending from the substrate, the protrusion comprising a portion of the channel layer and at least an upper portion of the epitaxially grown strained layer, allowing elastic relaxation in the portions.
摘要:
A method for forming a transistor structure comprising a fin-shaped channel structure, comprising: - providing a layer stack embedded laterally in STI structures; - recessing the STI structures adjacent to the layer stack to thereby expose an upper portion of the layer stack, the upper portion comprising at least a channel portion; - providing one or more protection layers on the upper portion of the layer stack; - after providing one or more protection layers, further recessing the STI structures selectively to the protection layers and the layer stack, to thereby expose a central portion of the layer stack; - removing the central portion of the layer stack, resulting in a freestanding upper part and a lower part of the layer stack being physically separated from each other; wherein providing the layer stack comprises providing an etch stop layer at a position directly below the channel portion, such that the freestanding upper part of the layer stack comprises an etch stop layer at its lower surface after selectively removing the central portion.
摘要:
A CMOS semiconductor FinFET device and a method for manufacturing a CMOS semiconductor FinFET device is disclosed. The device comprises a NFinFET and PFinFET having a channel region comprising Ge on a common strain-relaxed buffer layer comprising SiGe. The concentration of Ge in the channel regions is higher than the concentration of Ge in the strain-relaxed buffer layer. The device further comprises a source/drain region for the NFINFET, the source/drain region comprising SiGe; and a source/drain region for the PFINFET, the second source/drain region comprising Ge.