摘要:
To provide a method of manufacturing a laminated wafer by which a strong coupling is achieved between wafers made of different materials having a large difference in thermal expansion coefficient without lowering a maximum heat treatment temperature as well as in which cracks or chips of the wafer does not occur. A method of manufacturing a laminated wafer 7 by forming a silicon film layer on a surface 4 of an insulating substrate 3 comprising the steps in the following order of: applying a surface activation treatment to both a surface 2 of a silicon wafer 1 or a silicon wafer 1 to which an oxide film is layered and a surface 4 of the insulating substrate 3 followed by laminating in an atmosphere of temperature exceeding 50° C. and lower than 300° C., applying a heat treatment to a laminated wafer 5 at a temperature of 200° C. to 350° C., and thinning the silicon wafer 1 by a combination of grinding, etching and polishing to form a silicon film layer.
摘要:
To provide a method of manufacturing a laminated wafer by which a strong coupling is achieved between wafers made of different materials having a large difference in thermal expansion coefficient without lowering a maximum heat treatment temperature as well as in which cracks or chips of the wafer does not occur. A method of manufacturing a laminated wafer 7 by forming a silicon film layer on a surface 4 of an insulating substrate 3 comprising the steps in the following order of: applying a surface activation treatment to both a surface 2 of a silicon wafer 1 or a silicon wafer 1 to which an oxide film is layered and a surface 4 of the insulating substrate 3 followed by laminating in an atmosphere of temperature exceeding 50° C. and lower than 300° C., applying a heat treatment to a laminated wafer 5 at a temperature of 200° C. to 350° C., and thinning the silicon wafer 1 by a combination of grinding, etching and polishing to form a silicon film layer.
摘要:
A method for producing a silicon film-transferred insulator wafer is disclosed. The method includes a surface activation step of performing a surface activation treatment on at least one of a surface of an insulator wafer and a hydrogen ion-implanted surface of a single crystal silicon wafer into which a hydrogen ion has been implanted to form a hydrogen ion-implanted layer; a bonding step that bonds the hydrogen ion-implanted surface to the surface of the insulator wafer to obtain bonded wafers; a first heating step that heats the bonded wafers; a grinding and/or etching step of grinding and/or etching a surface of a single crystal silicon wafer side of the bonded wafers; a second heating step that heats the bonded wafers; and a detachment step to detach the hydrogen ion-implanted layer by applying a mechanical impact to the hydrogen ion-implanted layer of the bonded wafers thus heated at the second temperature.
摘要:
[PROBLEM] Provided is a method for producing an SOI wafer which the method can prevent occurrence of thermal strain, detachment, crack and the like attributed to a difference in thermal expansion coefficients between the insulating substrate and the SOI layer and also improve the uniformity of film thickness of the SOI layer.[MEANS FOR SOLVING THE PROBLEM] Provided is a method for producing an SOI wafer comprising steps of: performing a surface activation treatment on at least one of a surface of an insulator wafer and a hydrogen ion-implanted surface of a single crystal silicon wafer having a hydrogen ion-implanted layer; bonding the hydrogen ion-implanted surface to the surface of the insulator wafer to obtain bonded wafers; heating the bonded wafers at a first temperature; grinding and/or etching a surface of a single crystal silicon wafer side of the bonded wafers thus heated so as to thin the single crystal silicon wafer of the bonded wafers; heating the bonded wafers thus ground and/or etched at a second temperature which is higher the first temperature; and performing detachment at the hydrogen ion-implanted layer by applying a mechanical impact to the hydrogen ion-implanted layer of the bonded wafers thus heated at the second temperature.
摘要:
Provided is a method for easily preparing a substrate comprising a monocrystalline film thereon or thereabove with almost no crystal defects without using a special substrate. More specifically, provided is a method for preparing a substrate comprising a monocrystalline film formed on or above a handle substrate, the method comprising: a step A of providing a donor substrate and the handle substrate; a step B of growing a monocrystalline layer on the donor substrate; a step C of implanting ions into the monocrystalline layer on the donor substrate so as to form an ion-implanted layer; a step D of bonding a surface of the monocrystalline layer of the ion-implanted donor substrate to a surface of the handle substrate; and a step E of peeling the bonded donor substrate at the ion-implanted layer existing in the monocrystalline layer so as to form the monocrystalline film on or above the handle substrate; wherein at least the steps A to E are repeated by using the handle substrate having the monocrystalline film formed thereon or thereabove as a donor substrate.
摘要:
Provided is a method for easily preparing a substrate comprising a monocrystalline film thereon or thereabove with almost no crystal defects without using a special substrate. More specifically, provided is a method for preparing a substrate comprising a monocrystalline film formed on or above a handle substrate, the method comprising: a step A of providing a donor substrate and the handle substrate; a step B of growing a monocrystalline layer on the donor substrate; a step C of implanting ions into the monocrystalline layer on the donor substrate so as to form an ion-implanted layer; a step D of bonding a surface of the monocrystalline layer of the ion-implanted donor substrate to a surface of the handle substrate; and a step E of peeling the bonded donor substrate at the ion-implanted layer existing in the monocrystalline layer so as to form the monocrystalline film on or above the handle substrate; wherein at least the steps A to E are repeated by using the handle substrate having the monocrystalline film formed thereon or thereabove as a donor substrate.
摘要:
Provided is a method for manufacturing a bonded wafer with a good thin film over the entire substrate surface, especially in the vicinity of the lamination terminal point. The method for manufacturing a bonded wafer comprises at least the following steps of: forming an ion-implanted region by implanting a hydrogen ion or a rare gas ion, or the both types of ions from a surface of a first substrate which is a semiconductor substrate; subjecting at least one of an ion-implanted surface of the first substrate and a surface of a second substrate to be attached to a surface activation treatment; laminating the ion-implanted surface of the first substrate and the surface of the second substrate in an atmosphere with a humidity of 30% or less and/or a moisture content of 6 g/m3 or less; and a splitting the first substrate at the ion-implanted region so as to reduce thickness of the first substrate, thereby manufacturing a bonded wafer with a thin film on the second substrate.
摘要翻译:提供一种在整个基板表面上,特别是在层叠终点附近制造具有良好薄膜的接合晶片的方法。 制造接合晶片的方法至少包括以下步骤:通过从作为半导体衬底的第一衬底的表面注入氢离子或稀有气体离子或两种离子形成离子注入区域 ; 对第一基板的离子注入表面和第二基板的表面中的至少一个进行表面活化处理; 将第一基板的离子注入表面和第二基板的表面在湿度为30%以下和/或6g / m 3以下的气氛中层压; 以及在离子注入区域处分裂第一衬底以便减小第一衬底的厚度,由此在第二衬底上制造具有薄膜的接合晶片。
摘要:
Provided is a method for manufacturing a bonded wafer with a good thin film over the entire substrate surface, especially in the vicinity of the lamination terminal point. The method for manufacturing a bonded wafer comprises at least the following steps of: forming an ion-implanted region by implanting a hydrogen ion or a rare gas ion, or the both types of ions from a surface of a first substrate which is a semiconductor substrate; subjecting at least one of an ion-implanted surface of the first substrate and a surface of a second substrate to be attached to a surface activation treatment; laminating the ion-implanted surface of the first substrate and the surface of the second substrate in an atmosphere with a humidity of 30% or less and/or a moisture content of 6 g/m3 or less; and a splitting the first substrate at the ion-implanted region so as to reduce thickness of the first substrate, thereby manufacturing a bonded wafer with a thin film on the second substrate.
摘要翻译:提供一种在整个基板表面上,特别是在层叠终点附近制造具有良好薄膜的接合晶片的方法。 制造接合晶片的方法至少包括以下步骤:通过从作为半导体衬底的第一衬底的表面注入氢离子或稀有气体离子或两种离子形成离子注入区域 ; 对第一基板的离子注入表面和第二基板的表面中的至少一个进行表面活化处理; 将第一基板的离子注入表面和第二基板的表面在湿度为30%以下和/或6g / m 3以下的气氛中层压; 以及在离子注入区域处分裂第一衬底以便减小第一衬底的厚度,由此在第二衬底上制造具有薄膜的接合晶片。
摘要:
Provided is a method for manufacturing an SOI wafer, which is capable of: efficiently removing an ion-implanted defect layer existing in an ion implanted layer in the vicinity of a peeled surface peeled by an ion implantation peeling method; ensuring the in-plane uniformity of a substrate; and also achieving cost reduction and higher throughput. The method for manufacturing an SOI wafer includes at least the steps of: bonding a silicon wafer with or without an oxide film onto a handle wafer to prepare a bonded substrate, wherein the silicon wafer has an ion implanted layer formed by implanting hydrogen ions and/or rare gas ions into the silicon wafer; peeling the silicon wafer along the ion implanted layer, thereby transferring the silicon wafer onto the handle wafer to produce a post-peeling SOI wafer; immersing the post-peeling SOI wafer in an aqueous ammonia-hydrogen peroxide solution; and performing a heat treatment at a temperature of 900° C. or higher on the immersed post-peeling SOI wafer, and/or polishing a silicon film layer of the immersed post-peeling SOI wafer, through CMP polishing by 10 to 50 nm.
摘要:
Provided is a method for producing an SOI substrate comprising a transparent insulating substrate and a silicon film formed on a first major surface of the insulating substrate wherein a second major surface of the insulating substrate which is opposite to the major surface is roughened, the method suppressing the generation of metal impurities and particles in a simple and easy way. More specifically, provided is a method for producing an SOI substrate comprising a transparent insulating substrate, a silicon film formed on a first major surface of the transparent insulating substrate, and a roughened second major surface, which is opposite to the first major surface, the method comprising steps of: providing the transparent insulating substrate, mirror surface-processing at least the first major surface of the transparent insulating substrate, forming a silicon film on the first major surface of the transparent insulating substrate, and laser-processing the second major surface of the transparent insulating substrate so as to roughen the second major surface by using a laser.