Abstract: A method of laser-curing and forming a honeycomb diamond grinding block made from fine-grained diamonds and a ceramic binding agent is provided. The method includes preparing a slurry, where components of the slurry, by mass ratios, include: 20-21 parts of photosensitive resin; 34.5-37 parts of aluminum-oxide powder; 4-5.5 parts of fine-grained diamond powder; 0.04-0.1 parts of a photoinitiator; a range of particle sizes of the fine-grained diamond powder is 6-8 ?m; stirring the slurry to allow all components in the slurry to be fully mixed with each other to obtain a first printing material; feeding the first printing material into a light-curing printer to perform light-curing 3D printing to obtain a precursor of a finished product; and performing, by a high-temperature furnace, a degreasing operation and a high-temperature sintering treatment on the precursor to obtain the finished product of the honeycomb diamond grinding block.

Abstract: A manufacturing method of a diamond porous grinding block based on 3D printing. The manufacturing method includes designing a 3D printing model of a grinding block unit cell with an adjustable porosity according to an internal cooling space for abrasive debris required in a grinding process, importing the 3D printing model of the grinding block unit cell into a MAGICS software, filling a frame of a 3D printing model of a diamond porous grinding block with a plurality of 3D printing models of grinding block unit cells; preparing mixed powder of diamond abrasive particles and an aluminum alloy binder as printing powder, performing 3D printing to the 3D printing model of the diamond porous grinding block by an SLM technology to obtain the diamond porous grinding block. The diamond porous grinding block is configured to form a diamond structure grinding disc for grinding a semiconductor substrate.

Abstract: A manufacturing method of a diamond porous grinding block based on 3D printing. The manufacturing method includes designing a 3D printing model of a grinding block unit cell with an adjustable porosity according to an internal cooling space for abrasive debris required in a grinding process, importing the 3D printing model of the grinding block unit cell into a MAGICS software, filling a frame of a 3D printing model of a diamond porous grinding block with a plurality of 3D printing models of grinding block unit cells; preparing mixed powder of diamond abrasive particles and an aluminum alloy binder as printing powder, performing 3D printing to the 3D printing model of the diamond porous grinding block by an SLM technology to obtain the diamond porous grinding block. The diamond porous grinding block is configured to form a diamond structure grinding disc for grinding a semiconductor substrate.

Abstract: The disclosure provides a method for growing GZO (ZnO:Ga) single crystals and relates to the technical field of crystal growth. The method may include the following steps: firstly, preparing compact, uniform and single-phase polycrystalline rods; secondly, optimizing the components and the proportions of flux; finally, optimizing the process parameters of travelling solvent floating zone crystal growth method for GZO, such as growth power, growth rate and rotation speed, etc. GZO crystals grown by this disclosure are high in crystalline quality, consistent in growth direction and excellent in electrical properties.

Abstract: The disclosure provides a method for growing GZO (ZnO:Ga) single crystals and relates to the technical field of crystal growth. The method may include the following steps: firstly, preparing compact, uniform and single-phase polycrystalline rods; secondly, optimizing the components and the proportions of flux; finally, optimizing the process parameters of travelling solvent floating zone crystal growth method for GZO, such as growth power, growth rate and rotation speed, etc. GZO crystals grown by this disclosure are high in crystalline quality, consistent in growth direction and excellent in electrical properties.