Abstract: A wafer grinding parameter optimization method and an electronic device are provided. The method includes the following. A natural frequency of a grinding wheel spindle of wafer processing equipment is obtained, and a grinding stability lobe diagram is generated accordingly. A grinding speed is selected based on a speed range of the grinding wheel spindle. Multiple grinding parameter combinations are determined based on the grinding speed. Multiple grinding simulation result combinations corresponding to the grinding parameter combinations are generated. A specific grinding parameter combination is selected based on each of the grinding simulation result combinations, and the wafer processing equipment is set accordingly.

Abstract: An integrated fan-out package includes a first redistribution structure, a die, conductive structures, an encapsulant, and a second redistribution structure. The first redistribution structure has first regions and a second region surrounding the first regions. A metal density in the first regions is smaller than a metal density in the second region. The die is disposed over the first redistribution structure. The conductive structures are disposed on the first redistribution structure to surround the die. Vertical projections of the conductive structures onto the first redistribution structure fall within the first regions of the first redistribution structure. The encapsulant encapsulates the die and the conductive structures. The second redistribution structure is disposed on the encapsulant, the die, and the conductive structures.

Abstract: A breathable and waterproof non-woven fabric is manufactured by a manufacturing method including the following steps. Performing a kneading process on 87 to 91 parts by weight of a polyester, 5 to 7 parts by weight of a water repellent, and 3 to 6 parts by weight of a flow promoter to form a mixture, in which the polyester has a melt index between 350 g/10 min and 1310 g/10 min at a temperature of 270° C., and the mixture has a melt index between 530 g/10 min and 1540 g/10 min at a temperature of 270° C. Performing a melt-blowing process on the mixture, such that the flow promoter is volatilized and a melt-blown fiber is formed, in which the melt-blown fiber has a fiber body and the water repellent disposed on the fiber body with a particle size (D90) between 350 nm and 450 nm.

Abstract: A breathable and waterproof non-woven fabric is manufactured by a manufacturing method including the following steps. Performing a kneading process on 87 to 91 parts by weight of a polyester, 5 to 7 parts by weight of a water repellent, and 3 to 6 parts by weight of a flow promoter to form a mixture, in which the polyester has a melt index between 350 g/10 min and 1310 g/10 min at a temperature of 270° C., and the mixture has a melt index between 530 g/10 min and 1540 g/10 min at a temperature of 270° C. Performing a melt-blowing process on the mixture, such that the flow promoter is volatilized and a melt-blown fiber is formed, in which the melt-blown fiber has a fiber body and the water repellent disposed on the fiber body with a particle size (D90) between 350 nm and 450 nm.

Abstract: A semiconductor device includes a substrate, an interconnect structure, and conductive vias. The substrate has a first side, a second side and a sidewall connecting the first side and the second side, wherein the sidewall includes a first planar sidewall of a first portion of the substrate, a second planar sidewall of a second portion of the substrate and a curved sidewall of a third portion of the substrate, where the first planar sidewall is connected to the second planar sidewall through the curved sidewall. The interconnect structure is located on the first side of the substrate, where a sidewall of the interconnect structure is offset from the second planar sidewall. The conductive vias are located on the interconnect structure, where the interconnect structure is located between the conductive vias and the substrate.

Abstract: A semiconductor die including mechanical-stress-resistant bump structures is provided. The semiconductor die includes dielectric material layers embedding metal interconnect structures, a connection pad-and-via structure, and a bump structure including a bump via portion and a bonding bump portion. The entirety of a bottom surface of the bump via portion is located within an area of a horizontal top surface of a pad portion of the connection pad-and-via structure.

Abstract: A breathable and waterproof non-woven fabric is manufactured by a manufacturing method including the following steps. Performing a kneading process on 87 to 91 parts by weight of a polyester, 5 to 7 parts by weight of a water repellent, and 3 to 6 parts by weight of a flow promoter to form a mixture, in which the polyester has a melt index between 350 g/10 min and 1310 g/10 min at a temperature of 270° C., and the mixture has a melt index between 530 g/10 min and 1540 g/10 min at a temperature of 270° C. Performing a melt-blowing process on the mixture, such that the flow promoter is volatilized and a melt-blown fiber is formed, in which the melt-blown fiber has a fiber body and the water repellent disposed on the fiber body with a particle size (D90) between 350 nm and 450 nm.

Abstract: Provided are a package structure and a method of forming the same. The method includes providing a first package having a plurality of first dies and a plurality of second dies therein; performing a first sawing process to cut the first package into a plurality of second packages, wherein one of the plurality of second packages comprises three first dies and one second die; and performing a second sawing process to remove the second die of the one of the plurality of second packages, so that a cut second package is formed into a polygonal structure with the number of nodes greater than or equal to 5.

Abstract: The present invention provides a microplasma device and system thereof. The microplasma device comprises a reaction tank carrying with a reaction solution. A nanomaterial and its precursors are contained in the reaction solution. A first electrode is at least partially immersed in the reaction solution. A second electrode comprises a microplasma array component to eject microplasma array to the surface of the reaction solution. A power source is electrically connected between the first electrode and the second electrode. The present invention provides a novel microplasma array device to produce nanomaterial with increased yield rate. The microplasma array device can be multiplied by adding the outlet of the microplasma as desired to produce nanomaterial including but not limited to nano-metal particles, carbon quantum dots, silicon quantum dots and plasma-activated water with higher yield rate.

Abstract: The present invention is related to a production method of a photoluminescence material by micro-plasma treatment for degrading plastic piece into multiple smaller molecular, a graphene quantum dot and the composite thereof. By using micro-plasma treatment, the production method provided by the present invention consumes very little energy and the processing steps is simple and efficiency without the existence of any organic solvent. The products obtained by the said treatment is high valued graphene quantum dot and graphene quantum dot composite with excellent photoluminescence ability for at least white, blue, green, cyan or yellow colors.

Abstract: In the porous substrate loaded with porous nano-particles structure and one-step micro-plasma production method thereof, since the micro-plasma system enhances the electron density and promotes reaction speed in the reaction without generating thermal effect, the method may be performed at an atmosphere environment. The nano-particles also can be quickly obtained by aforementioned micro-plasma system. The electromagnetic field generated by the micro-plasma can drive the nano-particles to be loaded onto the porous substrate in a one step, rapid and low cost process to improve the conventional techniques which require a relatively long procedure time and a complicated process.

Abstract: The present invention is related to a production method of a photoluminescence material by micro-plasma treatment for degrading plastic piece into multiple smaller molecular, a graphene quantum dot and the composite thereof. By using micro-plasma treatment, the production method provided by the present invention consumes very little energy and the processing steps is simple and efficiency without the existence of any organic solvent. The products obtained by the said treatment is high valued graphene quantum dot and graphene quantum dot composite with excellent photoluminescence ability for at least white, blue, green, cyan or yellow colors.

Abstract: A production method of low dimensional nano-material comprises steps of: introducing a layered material; adding an intercalating agent into the layered material; and exfoliating the layered material by ball-milling to form the low dimensional material. Mechanochemical approaches for low dimensional nano-material like graphene quantum dots synthesis offer a promise of new reaction pathways, and greener and more efficient syntheses, making them potential approaches for low cost production.

Abstract: Present invention is related to a porous substrate loaded with porous nano-particles structure and one-step micro-plasma production method thereof. Due to the micro-plasma system enables to enhance the electron density and promotes reaction speed in the reaction without generating thermal effect, the present invention is allowed to be performed at atmosphere environment. The nano-particles also can be quickly obtained by aforementioned micro-plasma system. The electromagnetic field generated by the micro-plasma can drive the nano-particles to be loaded onto the porous substrate in a one step, rapid and low cost process to improve the conventional techniques which requires relatively long procedure time and complicated process.

Abstract: A production method of low dimensional nano-material comprises steps of: introducing a layered material; adding an intercalating agent into the layered material; and exfoliating the layered material by ball-milling to form the low dimensional material. Mechanochemical approaches for low dimensional nano-material like graphene quantum dots synthesis offer a promise of new reaction pathways, and greener and more efficient syntheses, making them potential approaches for low cost production.

Abstract: Provided is a composite carbon material including a substrate and a graphene oxide. The graphene oxide accounts for about 5 wt % to 60 wt % based on a total weight of the substrate and the graphene oxide. A method of preparing a composite carbon material is further provided. The prepared composite carbon material has excellent hydrophilic property, flexibility, electrical conductivity and dispersity.

Abstract: A method of producing nano-composites has the following steps: providing a solution, with the solution having a substrate and a precursor of a zero-dimensional nanoparticles; and subjecting a surface of the solution to a plasma to activate the precursor to generate the zero-dimensional nanoparticles in the solution. The nanoparticles are self-assembled on the substrate uniformly to generate the nano-composites.

Abstract: A method for producing a modified graphene includes the steps of intercalating or inserting a mixture of intercalating agents in a spacing between interlayers of carbon substrates or between carbon substrates, whereby the binding force between the interlayers of the carbon substrates or between the carbon substrates is weakened; and then exfoliating the pretreated carbon substrates to form the modified graphene. With the environmental friendly purpose, the method according to the present invention is useful for reducing the total amount of a strong acid. Therefore, the amount of the generated oxygen-containing functional groups attached on the modified graphene is modulated to avoid defects and maintain a yield over 80%.