Abstract: A semiconductor package has central region and peripheral region surrounding central region. The semiconductor package includes dies, encapsulant, and redistribution structure. The dies include functional die and first dummy dies. Functional die is disposed in central region. First dummy dies are disposed in peripheral region. Redistribution structure is disposed on encapsulant over the dies, and is electrically connected to functional die. Vacancy ratio of central region is in the range from 1.01 to 3.00. Vacancy ratio of the peripheral region is in the range from 1.01 to 3.00. Vacancy ratio of central region is a ratio of total area of central region to total area occupied by dies disposed in central region. Vacancy ratio of peripheral region is a ratio of total area of peripheral region to total area occupied by first dummy dies disposed in peripheral region.

Abstract: A semiconductor package has central region and peripheral region surrounding central region. The semiconductor package includes dies, encapsulant, and redistribution structure. The dies include functional die and first dummy dies. Functional die is disposed in central region. First dummy dies are disposed in peripheral region. Redistribution structure is disposed on encapsulant over the dies, and is electrically connected to functional die. Vacancy ratio of central region is in the range from 1.01 to 3.00. Vacancy ratio of the peripheral region is in the range from 1.01 to 3.00. Vacancy ratio of central region is a ratio of total area of central region to total area occupied by dies disposed in central region. Vacancy ratio of peripheral region is a ratio of total area of peripheral region to total area occupied by first dummy dies disposed in peripheral region.

Abstract: An anti-counterfeiting bottle includes a metal cap, a bottle body and a RFID (Radio-Frequency Identification) tag. The RFID tag includes a grounded surface, a monopole antenna and a RFID chip. The grounded surface is attached to the bottle body. The monopole antenna is attached to the bottle and is electrically connected to the grounded surface. The RFID chip is attached to the bottle and is electrically connected to the monopole antenna and the grounded surface respectively, wherein the RFID chip, the monopole antenna and the grounded surface form a loop structure. When the RFID tag is torn up, the loop structure is destroyed as well, such that the RFID tag cannot be read anymore, thus achieving the anti-counterfeiting function.

Abstract: A resident measurement system for a charge level of a blast furnace includes a chamber, a servo system, a distance measurement unit, and a cooling-cleaning unit. The chamber is combined with a lateral furnace wall of the blast-furnace, covers an opening of the furnace wall, and has a pivoting hole. A pivot of the distance measurement unit is pivotally disposed at the pivoting hole, and the distance measurement unit is driven by the servo system to perform a motion with the pivot as a movement center, so as to measure the charge level. The cooling-cleaning unit is used to supply a high-pressure gas, which flows through the distance measurement unit to perform cooling and cleansing operations.

Abstract: A wireless identification tag having circular polarization planar antenna is disclosed. The wireless identification tag includes a conductive substrate and a wireless identification device. The conductive substrate includes a first slot portion, a second slot portion, and a third slot portion. The first slot portion, the second slot portion, and the third slot portion pass through the conductive substrate. The first slot portion and the second slot portion stretch in a first direction and a second direction, respectively. The angle between the first direction and the second direction is between 45 degrees and 135 degrees. The third slot portion is connected between the first slot portion and the second slot portion. The wireless identification device is disposed in the first slot portion or the second slot portion. The wireless identification device is used to transmit or receive an electric wave.

Abstract: An anti-counterfeiting bottle includes a metal cap, a bottle body and a RFID (Radio-Frequency Identification) tag. The RFID tag includes a grounded surface, a monopole antenna and a RFID chip. The grounded surface is attached to the bottle body. The monopole antenna is attached to the bottle and is electrically connected to the grounded surface. The RFID chip is attached to the bottle and is electrically connected to the monopole antenna and the grounded surface respectively, wherein the RFID chip, the monopole antenna and the grounded surface form a loop structure. When the RFID tag is torn up, the loop structure is destroyed as well, such that the RFID tag cannot be read anymore, thus achieving the anti-counterfeiting function.

Abstract: A radio frequency identification tag device includes an antenna unit including a dielectric substrate that has two through holes extending from a first surface to a second surface opposite to the first surface, a first conductive layer disposed over the first surface of the dielectric substrate, a second conductive layer unit disposed over the second surface of the dielectric substrate and having opposite second conductive layers spaced apart from each other such that a spacer is formed between the second conductive layers, and two connecting conductors each disposed in a corresponding through hole in the dielectric substrate and interconnecting electrically a corresponding second conductive layer and the first conductive layer. A radio frequency identification module is disposed to span the spacer and is attached to the second conductive layer unit.

Abstract: A radio frequency identification (RFID) tag using a monopole antenna is provided, in which an antenna structure is disposed on a metal plate, two ends of an RFID chip are electrically connected to the antenna structure, and the antenna structure and the RFID chip form a loop structure. The RFID tag can be disposed on a surface of an object to be measured, or disposed in an inner accommodation space of the object to be measured, so it is widely used in various applications. Additionally, the RFID tag is easily manufactured, so the production cost can be reduced. Furthermore, the RFID tag has a larger readable distance, and an electromagnetic wave emitting direction of the RFID tag is adjustable according to different included angles between the metal plate and the antenna structure, thereby causing signals to be read easily and identification ability to improve, two desirable effects.

Abstract: A resident measurement system for a charge level of a blast furnace includes a chamber, a servo system, a distance measurement unit, and a cooling-cleaning unit. The chamber is combined with a lateral furnace wall of the blast-furnace, covers an opening of the furnace wall, and has a pivoting hole. A pivot of the distance measurement unit is pivotally disposed at the pivoting hole, and the distance measurement unit is driven by the servo system to perform a motion with the pivot as a movement center, so as to measure the charge level. The cooling-cleaning unit is used to supply a high-pressure gas, which flows through the distance measurement unit to perform cooling and cleansing operations.

Abstract: A method has steps of providing a three-dimensional (3-D) laser scanner, providing a computer, obtaining point group data (PGD) and calculating measuring an outline of a top reactant stratum from the PGD. The step of providing a 3-D laser scanner directs a 3-D laser scanner at reactant strata in a blast furnace and output PGD that represent digital data of an inside of the blast furnace. The step of providing a computer connects the 3-D laser scanner to a computer having a point group analysis program. The step of calculating an outline of the top reactant stratum from the PGD is performed by the point group analysis program to calculate an outline of the top reactant stratum in the blast furnace from the PGD. At least one two-dimensional laser scanner is used to measure a path of the reactant being charged.

Abstract: A radio frequency identification (RFID) tag using a monopole antenna is provided, in which an antenna structure is disposed on a metal plate, two ends of an RFID chip are electrically connected to the antenna structure, and the antenna structure and the RFID chip form a loop structure. The RFID tag can be disposed on a surface of an object to be measured, or disposed in an inner accommodation space of the object to be measured, so it is widely used in various applications. Additionally, the RFID tag is easily manufactured, so the production cost can be reduced. Furthermore, the RFID tag has a larger readable distance, and an electromagnetic wave emitting direction of the RFID tag is adjustable according to different included angles between the metal plate and the antenna structure, thereby causing signals to be read easily and identification ability to improve, two desirable effects.

Abstract: A radio frequency identification tag device includes an antenna unit including a dielectric substrate that has two through holes extending from a first surface to a second surface opposite to the first surface, a first conductive layer disposed over the first surface of the dielectric substrate, a second conductive layer unit disposed over the second surface of the dielectric substrate and having opposite second conductive layers spaced apart from each other such that a spacer is formed between the second conductive layers, and two connecting conductors each disposed in a corresponding through hole in the dielectric substrate and interconnecting electrically a corresponding second conductive layer and the first conductive layer. A radio frequency identification module is disposed to span the spacer and is attached to the second conductive layer unit.

Abstract: A method has steps of providing a three-dimensional (3-D) laser scanner, providing a computer, obtaining point group data (PGD) and calculating measuring an outline of a top reactant stratum from the PGD. The step of providing a 3-D laser scanner directs a 3-D laser scanner at reactant strata in a blast furnace and output PGD that represent digital data of an inside of the blast furnace. The step of providing a computer connects the 3-D laser scanner to a computer having a point group analysis program. The step of calculating an outline of the top reactant stratum from the PGD is performed by the point group analysis program to calculate an outline of the top reactant stratum in the blast furnace from the PGD. At least one two-dimensional laser scanner is used to measure a path of the reactant being charged.