摘要:
The invention provides compounds of, and methods for the preparation of compounds of, the molecular formula, SixGeyHz—aXa; wherein X is halogen, and x, y, z, and a are defined herein, and methods for the deposition of high-Ge content Si films on silicon substrates using compounds of the invention.
摘要:
The invention provides compounds of, and methods for the preparation of compounds of, the molecular formula, SixGeyHz—aXa; wherein X is halogen, and x, y, z, and a are defined herein, and methods for the deposition of high-Ge content Si films on silicon substrates using compounds of the invention.
摘要:
The present disclosure describes methods for preparing semiconductor structures, comprising forming a Ge layer on a semiconductor substrate using an admixture of (a) (GeH3)2CH2 and Ge2H6; (b) GeH3CH3 and Ge2H6; or (c) (GeH3)2CH2, GeH3CH3 and Ge2H6, wherein in all cases, Ge2H6 is in excess. The disclosure further provides semiconductor structures formed according to the methods of the invention as well as compositions comprising an admixture of (GeH3)2CH2 and/or GeH3CH3 and Ge2H6 in a ratio of between about 1:5 and 1:30. The methods herein provide, and the semiconductor structures provide, Ge layers formed on semiconductor substrates having threading dislocation density below 105/cm2 which can be useful in semiconductor devices.
摘要翻译:本公开描述了制备半导体结构的方法,包括使用(a)(GeH 3)2 CH 2和Ge 2 H 6的混合物在半导体衬底上形成Ge层; (b)GeH 3 CH 3和Ge 2 H 6; 或(c)(GeH 3)2 CH 2,GeH 3 CH 3和Ge 2 H 6,其中在所有情况下,Ge 2 H 6过量。 本发明还提供了根据本发明方法形成的半导体结构以及包含(GeH 3)2 CH 2和/或GeH 3 CH 3和Ge 2 H 6的混合物的比例为约1:5至1:30的组合物。 本文提供的方法,并且半导体结构提供了在半导体衬底上形成的穿透位错密度低于105 / cm 2的Ge层,其可用于半导体器件。
摘要:
Single-source silyl-germanes hydrides can be used to deposit Gei_xSix seamlessly, conformally and selectively in the “source/drain” regions of prototypical transistors, leading to potentially significant performance gains derived from mobility enhancement, and applications in optoelectronics. Low-temperature heteroepitaxy (300-430° C.) produces monocrystalline microstructures, smooth and continuous surface morphologies and low defect densities. Strain engineering can be achieved by incorporating the entire SiGe content of precursors into the film.
摘要:
The present disclosure describes methods for preparing semiconductor structures, comprising forming a Ge1-ySny buffer layer on a semiconductor substrate and forming a tensile strained Ge layer on the Ge1-ySny buffer layer using an admixture of (GeH3)2CH2 and Ge2H6 in a ratio of between 1:10 and 1:30. The disclosure further provides semiconductor structures having highly strained Ge epilayers (e.g., between about 0.15% and 0.45%) as well as compositions comprising an admixture of (GeH3)2CH2 and Ge2H6 in a ratio of between about 1:10 and 1:30. The methods herein provide, and the semiconductor structure provide, Ge epilayers having high strain levels which can be useful in semiconductor devices for example, in optical fiber communications devices.
摘要翻译:本公开内容描述了制备半导体结构的方法,包括在半导体衬底上形成Ge1-ySny缓冲层并在Ge1-ySny缓冲层上形成拉伸应变Ge层,使用(GeH 3)2 CH 2和Ge 2 H 6的混合比例 1:10和1:30之间。 本公开进一步提供具有高应变Ge外延层(例如,约0.15%至0.45%)的半导体结构以及包含(GeH 3)2 CH 2和Ge 2 H 6的混合物的组合物,其比例为约1:10至1:30。 本文的方法提供半导体结构提供具有高应变水平的Ge外延层,其可用于例如光纤通信设备中的半导体器件。
摘要:
The present disclosure describes methods for preparing semiconductor structures, comprising forming a Ge1-ySny buffer layer on a semiconductor substrate and forming a tensile strained Ge layer on the Ge1-ySny buffer layer using an admixture of (GeH3)2CH2 and Ge2H6 in a ratio of between 1:10 and 1:30. The disclosure further provides semiconductor structures having highly strained Ge epilayers (e.g., between about 0.15% and 0.45%) as well as compositions comprising an admixture of (GeH3)2CH2 and Ge2H6 in a ratio of between about 1:10 and 1:30. The methods herein provide, and the semiconductor structure provide, Ge epilayers having high strain levels which can be useful in semiconductor devices for example, in optical fiber communications devices.
摘要翻译:本公开内容描述了制备半导体结构的方法,包括在半导体衬底上形成Ge1-ySny缓冲层并在Ge1-ySny缓冲层上形成拉伸应变Ge层,使用(GeH 3)2 CH 2和Ge 2 H 6的混合比例 1:10和1:30之间。 本公开进一步提供具有高应变Ge外延层(例如,约0.15%至0.45%)的半导体结构以及包含(GeH 3)2 CH 2和Ge 2 H 6的混合物的组合物,其比例为约1:10至1:30。 本文的方法提供半导体结构提供具有高应变水平的Ge外延层,其可用于例如光纤通信设备中的半导体器件。
摘要:
The present disclosure describes methods for preparing semiconductor structures, comprising forming a Ge layer on a semiconductor substrate using an admixture of (a) (GeH3)2CH2 and Ge2H6; (b) GeH3CH3 and Ge2H6; or (c) (GeH3)2CH2, GeH3CH3 and Ge2H6, wherein in all cases, Ge2H6 is in excess. The disclosure further provides semiconductor structures formed according to the methods of the invention as well as compositions comprising an admixture of (GeH3)2CH2 and/or GeH3CH3 and Ge2H6 in a ratio of between about 1:5 and 1:30. The methods herein provide, and the semiconductor structures provide, Ge layers formed on semiconductor substrates having threading dislocation density below 105/cm2 which can be useful in semiconductor devices.
摘要翻译:本公开描述了制备半导体结构的方法,包括使用(a)(GeH 3)2 CH 2和Ge 2 H 6的混合物在半导体衬底上形成Ge层; (b)GeH 3 CH 3和Ge 2 H 6; 或(c)(GeH 3)2 CH 2,GeH 3 CH 3和Ge 2 H 6,其中在所有情况下,Ge 2 H 6过量。 本发明还提供了根据本发明方法形成的半导体结构以及包含(GeH 3)2 CH 2和/或GeH 3 CH 3和Ge 2 H 6的混合物的比例为约1:5至1:30的组合物。 本文提供的方法,并且半导体结构提供了在半导体衬底上形成的穿透位错密度低于105 / cm 2的Ge层,其可用于半导体器件。
摘要:
A semiconductor structure and fabrication method is provided for integrating wide bandgap nitrides with silicon. The structure includes a substrate, a single crystal buffer layer formed by epitaxy over the substrate and a group III nitride film formed by epitaxy over the buffer layer. The buffer layer is reflective and conductive. The buffer layer may comprise B an element selected from the group consisting of Zr, Hf, Al. For example, the buffer layer may comprise ZrB2, AlB2 or HfB2. The buffer layer provides a lattice match with the group III nitride layer. The substrate can comprise silicon, silicon carbide (SiC), gallium arsenide (GaAs), sapphire or Al2O3. The group III nitride material includes GaN, AlN, InN, AlGaN, InGaN or AlInGaN and can form an active region. In a presently preferred embodiment, the buffer layer is ZrB2 and the substrate is Si(111) or Si(100) and the group III nitride layer comprises GaN. The ZrB2 buffer layer provides a reflective and conductive buffer layer that has a small lattice mismatch with GaN. The semiconductor structure can be used to fabricate active microelectronic devices, such as transistors including field effect transistors and bipolar transistors. The semiconductor structure also can be used to fabricate optoelectronic devices, such as laser diodes and light emitting diodes.
摘要:
An extended solid bulk composition carbon nitride (C.sub.3 N.sub.4) having an atomic ratio of carbon to nitrogen in the range of 3:4 to 3.2:4 as a bulk solid, produced by thermal decomposition and chemical vapor deposition of precursors having formula (I):C.sub.3 N.sub.3 XX'N(MR.sub.3)(M'R'.sub.3) (I)wherein C3N3 is a cyclic 1,3,5-triazine group, X is a halogen selected from the group consisting of fluorine, chlorine, bromine, and iodine, X' is a halogen selected from the group consisting of fluorine, chlorine, bromine, and iodine, M is a group IV metal, M' is a group IV metal, R is an alkyl substituent, and R' is an alkyl substituent, producing a decomposition gas decomposition gas having formula II:XMR.sub.3 (II)
摘要翻译:通过热分解和化学气相沉积具有式(I)的前体制备的作为大量固体的碳/氮原子比在3:4至3.2:4范围内的固体本体组合物碳氮化物(C 3 N 4): C3N3XX'N(MR3)(M'R'3)(I)其中C3N3是环状1,3,5-三嗪基,X是选自氟,氯,溴和碘的卤素,X '是选自氟,氯,溴和碘的卤素,M是IV族金属,M'是Ⅳ族金属,R是烷基取代基,R'是烷基取代基,产生 具有式II的分解气体分解气体:XMR3(II)