摘要:
An AlN layer (2), a GaN buffer layer (3), a non-doped AlGaN layer (4a), an n-type AlGaN layer (4b), an n-type GaN layer (5), a non-doped AlN layer (6) and an SiN layer (7) are sequentially formed on an SiC substrate (1). At least three openings are formed in the non-doped AlN layer (6) and the SiN layer (7), and a source electrode (8a), a drain electrode (8b) and a gate electrode (19) are evaporated in these openings.
摘要:
A method for manufacturing a compound semiconductor device includes forming a first compound semiconductor layer over a first substrate, the first compound semiconductor layer containing AlxGa1-xN (0≦x
摘要翻译:一种化合物半导体器件的制造方法,包括在第一衬底上形成第一化合物半导体层,所述第一化合物半导体层含有具有第一带隙的Al x Ga 1-x N(0< n 1; x 1) 在所述第一化合物半导体层上形成第二化合物半导体层,所述第二化合物半导体层包含具有大于所述第一带隙的第二带隙的Al y In z Ga 1-y-z N(0
摘要:
In formation-by-growth of an AlGaN layer 3 as having a double-layered structure, a non-doped AlGaN layer (i-AlGaN layer) having an Al compositional ratio of approximately 15% is formed to a thickness of approximately 3 nm on an i-GaN layer, and further thereon, an AlGaN layer (n-AlGaN layer) doped with Si in a concentration of approximately 2×1018/cm3 and having an Al compositional ratio of approximately 15% is formed to a thickness of approximately 17 nm.
摘要翻译:在具有双层结构的AlGaN层3的逐层生长中,形成具有大约15%的Al组成比的大约为3nm的非掺杂AlGaN层(i-AlGaN层),厚度约为3nm i-GaN层,并且其上掺杂浓度为约2×10 18 / cm 3的Si的AlGaN层(n-AlGaN层),并具有Al 约15%的组成比形成为约17nm的厚度。
摘要:
A semiconductor device includes a buffer layer of AlGaAs that contains oxygen with a concentration level in the approximate range of 8.times.10.sup.17 cm.sup.-3 to 6.times.10.sup.19 cm.sup.-3, and carbon with a concentration level in the approximate range of 2.times.10.sup.16 cm.sup.-3 to 2.times.10.sup.17 cm.sup.-3. A lattice constant of the AlGaAs buffer layer is larger than a lattice constant of the GaAs substrate so a lattice misfit of the AlGaAs layer with respect to the GaAs substrate is equal to or varies by no more than 2.times.10.sup.5 from a corresponding lattice misfit between an undoped AlGaAs crystal with respect to the GaAs substrate. Oxygen atoms occupy an interstitial site, creating a deep impurity level that suppresses side gate effect.
摘要翻译:半导体器件包括含有浓度在8×10 17 cm -3至6×10 19 cm -3的浓度范围内的氧的AlGaAs缓冲层,浓度水平在2×10 16 cm -3至2×10 17 cm -3的范围内的碳, 3。 AlGaAs缓冲层的晶格常数大于GaAs衬底的晶格常数,因此AlGaAs层相对于GaAs衬底的晶格失配从未掺杂的相应晶格失配等于或不超过2×10 5 AlGaAs晶体相对于GaAs衬底。 氧原子占据间隙位置,产生抑制侧栅效应的深杂质水平。
摘要:
A method of fabricating a compound semiconductor device includes a step of removing a semiconductor layer by an etching process to expose an upper major surface of an underlying semiconductor layer, followed by a growth of another semiconductor layer of the p-type on the surface thus exposed, wherein the exposed surface is cleaned by a flushing of a gaseous metal organic compound containing a group V element for removing impurities therefrom and further doping the exposed surface to the p-type.
摘要:
In a method for growing a III-V group compound semiconductor crystal, as a Si dopant, a compound including a Si atom bonded to an alkyl group and a hydrogen atom is used. Also, a compound including two Si atoms in one molecule thereof, at least one of said Si atoms being bonded to a hydrogen atom, and at least the other of said Si atoms being bonded to an alkyl group can be used. Further, a compound including two Si atoms in one molecule thereof, at least one of said Si atoms being bonded to a hydrogen atom, and at least the other of said Si atoms being bonded to a phenyl group or a compound including a Si atom bonded to an organic amino group can be used. Si can be doped evenly at a high concentration at a low temperature with a safe operation by the invention.
摘要:
A method for growing an epitaxial layer of a group III-V compound semiconductor material that contains oxygen comprises the steps of supplying molecules of an organic compound that contains a group V element and oxygen in the molecule, and decomposing the molecules of the organic compound to release the group V element and oxygen.
摘要:
A method for growing an epitaxial layer of a group III-V compound semiconductor material that contains oxygen comprises the steps of supplying molecules of an organic compound that contains a group V element and oxygen in the molecule, and decomposing the molecules of the organic compound to release the group V element and oxygen.
摘要:
An AlN layer (2), a GaN buffer layer (3), a non-doped AlGaN layer (4a), an n-type AlGaN layer (4b), an n-type GaN layer (5), a non-doped AlN layer (6) and an SiN layer (7) are sequentially formed on an SiC substrate (1). At least three openings are formed in the non-doped AlN layer (6) and the SiN layer (7), and a source electrode (8a), a drain electrode (8b) and a gate electrode (19) are evaporated in these openings.