Patent classifications
H01L21/0201
Method for fabricating a semiconductor device
A method for fabricating a semiconductor device includes: providing a first wafer including a base substrate having a first surface and a second surface facing each other, and an element region disposed on the first surface of the base substrate, in which the first wafer includes a first semiconductor chip region and a second semiconductor chip region adjacent to each other, each including a portion of the base substrate and a portion of the element region; forming a cutting pattern in the base substrate between the first semiconductor chip region and the second semiconductor chip region; grinding a part of the base substrate to form a second wafer from the first wafer; forming a stress relief layer on the second surface of the ground base substrate; and expanding the second wafer to separate the first semiconductor chip region and the second semiconductor chip region from each other.
Large aluminum nitride crystals with reduced defects and methods of making them
Reducing the microvoid (MV) density in AlN ameliorates numerous problems related to cracking during crystal growth, etch pit generation during the polishing, reduction of the optical transparency in an AlN wafer, and, possibly, growth pit formation during epitaxial growth of AlN and/or AlGaN. This facilitates practical crystal production strategies and the formation of large, bulk AlN crystals with low defect densities—e.g., a dislocation density below 10.sup.4 cm.sup.−2 and an inclusion density below 10.sup.4 cm.sup.−3 and/or a MV density below 10.sup.4 cm.sup.−3.
WAFER PROCESS, APPARATUS AND METHOD OF MANUFACTURING AN ARTICLE
An apparatus is provided. The apparatus has a chuck having a first side configured to retain a superstrate or a template and a second side, an array of image sensors disposed at the second side of the chuck and spaced from the chuck, and an array of light sources disposed between the transparent chuck and the array of image sensors.
Light assisted platelet formation facilitating layer transfer from a semiconductor donor substrate
A method is disclosed for promoting the formation of uniform platelets in a monocrystalline semiconductor donor substrate by irradiating the monocrystalline semiconductor donor substrate with light. The photon-absorption assisted platelet formation process leads to uniformly distributed platelets with minimum built-in stress that promote the formation a well-defined cleave-plane in the subsequent layer transfer process.
METHOD FOR CONTROLLING IMPLANTING TOOL
The present application discloses a method for controlling an implanting tool. The method includes executing a first implantation recipe on a current wafer; generating a first set of data of the current wafer by a first measurement module; analyzing the first set of data by an artificial intelligence module coupled to the first measurement module; generating, by the artificial intelligence module, a second implantation recipe and applying the second implantation recipe to the implantation tool when the first set of data is not within a predetermined range; and executing the second implantation recipe on a next wafer.
Method of manufacturing semiconductor device
A wafer having a semiconductor substrate including a peripheral region and a central region, an insulating layer and a semiconductor layer is prepared first. Next, a plurality of trenches penetrating through the semiconductor layer and the insulating layer and reaching an inside of the semiconductor substrate are formed. Next, an inside of each of the plurality of trenches is filled with an insulating film, so that a plurality of element isolating portions is formed. Next, in the central region, the semiconductor layer exposed from a resist pattern is removed. The end portion closest to the outer edge of the semiconductor substrate among ends of the resist pattern used for removing the semiconductor layer in the central region is formed so as to be positioned closer to the outer edge of the semiconductor substrate than a position of the end portion closest to the outer edge of the semiconductor substrate among ends of the resist pattern used for forming the trenches.
CARBON-DOPED SILICON SINGLE CRYSTAL WAFER AND METHOD FOR MANUFACTURING THE SAME
A method for manufacturing a carbon-doped silicon single crystal wafer, including steps of: preparing a silicon single crystal wafer not doped with carbon; performing a first RTA treatment on the silicon single crystal wafer in an atmosphere containing compound gas; performing a second RTA treatment at a higher temperature than the first RTA treatment; cooling the silicon single crystal wafer after the second RTA treatment; and performing a third RTA treatment. The crystal wafer is modified to a carbon-doped silicon single crystal wafer, sequentially from a surface thereof: a 3C-SiC single crystal layer; a carbon precipitation layer; a diffusion layer of interstitial carbon and silicon; and a diffusion layer of vacancy and carbon. A carbon-doped silicon single crystal wafer having a surface layer with high carbon concentration and uniform carbon concentration distribution to enable wafer strength enhancement; and a method for manufacturing the carbon-doped silicon single crystal wafer.
Film for component manufacture and component manufacturing method
Provided are a film for manufacturing semiconductor component, a film for electronic component manufacture, a method for manufacturing a semiconductor component using such a film for manufacturing semiconductor component, and a method for manufacturing an electronic component using such a film for electronic component manufacture. The film for component manufacture includes a base layer and an adhesive layer provided on one surface side of the base layer, and the Ra (μm) of the surface of one side of the base layer on which the adhesive layer is not provided is 0.1 to 2.0, and the Rz (μm) is 1.0 to 15. The method using the film for component manufacture includes a segmenting step, a pickup step, and an evaluation step prior to the pickup step.
Surface oxidation method for wafer
A surface oxidation method for a wafer, the method comprises: raising a temperature on the wafer in an oxidation atmosphere, the temperature is raised from a start temperature to a target temperature at a temperature raising rate greater than 5° C./min, the temperature is raised in a vertical furnace tube of an annealing furnace, the vertical furnace tube includes a gas intake conduit arranged on a side wall, the gas intake conduit includes a gas inlet arranged to be proximate to a bottom of the vertical furnace tube and a gas outlet arranged to be proximate to a top of the furnace tube, the wafer overlying the vertical furnace tube; and isothermally oxidizing the wafer at the target temperature in the oxidation atmosphere.
Substrate processing method and substrate processing apparatus
A substrate processing method includes: maintaining an atmosphere in contact with at least a surface of a substrate on which a first material that is a metal and a second material that is a material other than the first material are exposed, as a deoxidized atmosphere; supplying a film forming material, which selectively forms a film on the first material among the first material and the second material, to the surface of the substrate in a state where the deoxidized atmosphere is maintained by the maintaining; performing a surface treatment of the second material in a state where the film is formed on a surface of the first material supplied in the supplying the film forming material; and removing the film from the surface of the first material after the performing the surface treatment.