摘要:
A method for forming a semiconductor structure that includes a thin layer of semiconductor material on a receiver wafer is disclosed. The method includes removing a thickness of material from a donor wafer, which comprises a support substrate and an epitaxial layer, for surface preparation and transferring a portion of the epitaxial layer from the donor wafer to the receiver wafer. The thickness removed during the surface preparation is adapted to enable formation of a new semiconductor structure from the remaining epitaxial portion of the donor wafer.
摘要:
A method for forming a semiconductor structure that includes a thin layer of semiconductor material on a receiver wafer is disclosed. The method includes removing a thickness of material from a donor wafer, which comprises a support substrate and an epitaxial layer, for surface preparation and transferring a portion of the epitaxial layer from the donor wafer to the receiver wafer. The thickness removed during the surface preparation is adapted to enable formation of a new semiconductor structure from the remaining epitaxial portion of the donor wafer.
摘要:
A method for forming a semiconductor structure comprising a thin layer of semiconductor material on a receiver wafer is disclosed. The method comprises removing a thickness of material from a donor wafer, which comprises a support substrate and an epitaxial layer, for surface preparation and transferring a portion of the epitaxial layer from the donor wafer to the receiver wafer. The thickness removed during the surface preparation is adapted to enable formation of a new semiconductor structure from the remaining epitaxial portion of the donor wafer.
摘要:
The invention relates to a method for manufacturing a material compound wafer by forming a predetermined splitting area in a source substrate; attaching the source substrate to a handle substrate to form an assembly; heating the assembly for weakening the predetermined splitting area; and determining a degree of weakening of the predetermined splitting area which evidences the physical strength of the predetermined splitting area during or after heating to detect anomalies that may lead to damage of the source substrate, handle or assembly. The degree of weakening is advantageously determined in-situ and may be determined continuously or periodically during the heating. The invention further relates to an apparatus for thermal annealing device used in the manufacturing process of a material compound wafer. This apparatus generally includes a device for thermally annealing the assembly described above; and a device for determining the degree of weakening of the predetermined splitting area during or after thermal annealing to detect anomalies that may lead to damage of the source substrate, handle or assembly.
摘要:
The invention relates to a method for manufacturing a material compound wafer by forming a predetermined splitting area in a source substrate; attaching the source substrate to a handle substrate to form an assembly; heating the assembly for weakening the predetermined splitting area; and determining a degree of weakening of the predetermined splitting area which evidences the physical strength of the predetermined splitting area during or after heating to detect anomalies that may lead to damage of the source substrate, handle or assembly. The degree of weakening is advantageously determined in-situ and may be determined continuously or periodically during the heating. The invention further relates to an apparatus for thermal annealing device used in the manufacturing process of a material compound wafer. This apparatus generally includes a device for thermally annealing the assembly described above; and a device for determining the degree of weakening of the predetermined splitting area during or after thermal annealing to detect anomalies that may lead to damage of the source substrate, handle or assembly.
摘要:
The invention concerns a process to treat a structure of semiconductor-on-insulator type structure of a carrier substrate, an oxide layer and a thin layer of a semiconductor material, wherein the structure having a peripheral ring in which the oxide layer is exposed, and the process includes the application of a main thermal treatment in a neutral or controlled reducing atmosphere. The method includes a step to cover at least an exposed peripheral part of the oxide layer, prior to the main thermal treatment, this latter treatment being conducted under controlled time and temperature conditions so as to urge at least part of the oxygen in the oxide layer to diffuse through the thin semiconductor layer, leading to controlled reduction of the thickness of the oxide layer.
摘要:
The invention relates to a method for manufacturing a compound material wafer. The technique includes forming a weakened zone in a source substrate, attaching the source substrate to a handle substrate to form a source-handle assembly, and thermally annealing the source-handle assembly to further weaken the weakened zone. The method also includes holding the assembly at a holding temperature, and detaching the source substrate from the assembly at the weakened zone at the holding temperature. The holding temperature is greater than room temperature but does not promote further weakening of the weakened zone.
摘要:
A process for treating a semiconductor-on-insulator type structure that includes, successively, a support substrate, an oxide layer and a thin semiconductor layer. The process includes formation of a silicon nitride or silicon oxynitride mask on the thin semiconductor layer to define exposed areas at the surface of the layer which are not covered by the mask, and which are arranged in a desired pattern; and application of a heat treatment in a neutral or controlled reducing atmosphere and under controlled conditions of temperature and time to induce at least a portion of the oxygen of the oxide layer to diffuse through the thin semiconductor layer, thereby resulting in the controlled reduction in the oxide thickness in the areas of the oxide layer corresponding to the desired pattern. The mask is formed so as to be at least partially buried in the thickness of the thin semiconductor layer.
摘要:
The present invention relates to a process for manufacturing a structure comprising a germanium layer (3) on a support substrate (1), characterised in that it comprises the following steps: (a) formation of an intermediate structure (10) comprising said support substrate (1), a silicon oxide layer (20) and said germanium layer (3), the silicon oxide layer (20) being in direct contact with the germanium layer (3), (b) application to said intermediate structure (10) of a heat treatment, in a neutral or reducing atmosphere, at a defined temperature and for a defined time, to diffuse at least part of the oxygen from the silicon oxide layer (20) through the germanium layer (3).
摘要:
A process for fabricating a substrate that includes a buried oxide layer for the production of electronic components or the like. The process includes depositing an oxide layer or a nitride layer on either of a donor or receiver substrate, and bringing the donor and receiver substrates into contact; conducting at least a first heat treatment of the oxide or nitride layer before bonding the substrates, and conducting a second heat treatment of the fabricated substrate of the receiver substrate, the oxide layer and all or part of the donor substrate at a temperature equal to or higher than the temperature applied in the first heat treatment. Substrates that have an oxide or nitride layer deposited thereon wherein the oxide or nitride layer is degassed and has a refractive index smaller than the refractive index of an oxide or nitride layer of the same composition formed by thermal growth.