Abstract:
Embodiments of the present disclosure generally relate to a film stack including layers of group III-V semiconductor materials. The film stack includes a phosphorous containing layer deposited over a silicon substrate, a GaAs containing layer deposited on the phosphorous containing layer, and an aluminum containing layer deposited on the GaAs containing layer. The GaAs containing layer between the phosphorous containing layer and the aluminum containing layer improves the surface smoothness of the aluminum containing layer.
Abstract:
Embodiments of the present disclosures provide methods and apparatus for manufacturing semiconductor devices such as transistors used for amplifying or switching electronic signals. Specifically, embodiments of the present disclosure generally relate to a semiconductor device having a film stack including an interlayer of semiconductor material and a buffer layer of semiconductor material underneath an active device layer. In various embodiments, the interlayer may include group III-V semiconductor materials formed between a first surface of a silicon-based substrate and the buffer layer. In certain embodiments the buffer layer may comprise group IV semiconductor materials. The interlayer may have a lattice constant designed to mitigate lattice mismatch between the group IV buffer layer and the silicon-based substrate. The buffer layer may provide improved integration of the active device layer to improve the performance of the resulting device.
Abstract:
Embodiments of the present disclosure generally relate to a semiconductor device including layers of group III-V semiconductor materials. In one embodiment, the semiconductor device includes a phosphorous containing layer deposited on a silicon substrate, wherein a lattice mismatch between the phosphorous containing layer and the silicon substrate is less than 5%, a group III-V compound nucleation layer deposited on the phosphorous containing layer at a first temperature, the group III-V compound nucleation layer having a first thickness, a group III-V compound transition layer deposited on the group III-V compound nucleation layer at a second temperature higher than the first temperature, the group III-V compound transition layer having a second thickness larger than the first thickness, and the group III-V compound nucleation layer is different from the group III-V compound transition layer, and an active layer deposited on the group III-V compound transition layer.
Abstract:
Embodiments described herein generally relate to a substrate processing system, such as an etch processing system. In one embodiment, a method of processing a substrate is disclosed herein. The method includes removing a native oxide from a surface of the substrate, baking the substrate in a pre-treatment thermal chamber such that double atomic steps are formed on the surface of the substrate, and forming an epitaxial layer on the substrate after the substrate is baked.
Abstract:
Embodiments of the present disclosures provide methods and apparatus for manufacturing semiconductor devices such as transistors used for amplifying or switching electronic signals. Specifically, embodiments of the present disclosure generally relate to a semiconductor device having a film stack including an interlayer of semiconductor material and a buffer layer of semiconductor material underneath an active device layer. In various embodiments, the interlayer may include group III-V semiconductor materials formed between a first surface of a silicon-based substrate and the buffer layer. In certain embodiments the buffer layer may comprise group IV semiconductor materials. The interlayer may have a lattice constant designed to mitigate lattice mismatch between the group IV buffer layer and the silicon-based substrate. The buffer layer may provide improved integration of the active device layer to improve the performance of the resulting device.