Abstract: A selecting method of a non-simplified region of a 3D model of a multilayer metal circuit structure is used for selecting a first non-simplified region in a complete 3D model of a layout design of a multilayer metal circuit structure. The complete 3D model contains multiple layout layers. The electing method of the first non-simplified region includes at least one of first to fourth selecting modes. Through the selecting method of the non-simplified region of the present invention, the entire complete 3D can be effectively simplified in a programmed manner, shortening the overall electrical simulation time.

Abstract: An automatically generating method for generating a simulation circuit includes performing a circuit dividing step, a circuit segmenting step, a main element model generating step, a circuit segment model generating step and a model combining step. The circuit dividing step includes accessing a radio frequency circuit information from a memory unit, and dividing the radio frequency circuit information into a plurality of circuit units. The circuit segmenting step includes transforming each of the circuit units into a plurality of circuit segments. The main element model generating step includes generating at least one main element model. The circuit segment model generating step includes generating a circuit segment model. The circuit segment model is corresponding to each of the circuit segments. The model combining step includes combining the at least one main element model and the circuit segment model corresponding to each of the circuit segments to generate the simulation circuit.

Abstract: An excitation source planning method for an electrical stimulation is proposed to plan an excitation source. A layout importing step is performed to drive a processing unit to import a PCB layout to an electromagnetic simulation software module. A port establishing step is performed to set the excitation source to be vertically disposed between a signal layer and a main ground layer. A model generating step is performed to perform the electrical simulation according to the excitation source to generate a three-dimensional simulation model corresponding to the PCB layout. When the signal layer is not electrically connected to the main ground layer, the electromagnetic simulation software module executes an extending step. The extending step is performed to provide a first metal unit to be connected to the signal layer, and reset the excitation source to be vertically disposed between the first metal unit and the main ground layer.

Abstract: An excitation source planning method for an electrical stimulation is proposed to plan an excitation source. A layout importing step is performed to drive a processing unit to import a PCB layout to an electromagnetic simulation software module. A port establishing step is performed to set the excitation source to be vertically disposed between a signal layer and a main ground layer. A model generating step is performed to perform the electrical simulation according to the excitation source to generate a three-dimensional simulation model corresponding to the PCB layout. When the signal layer is not electrically connected to the main ground layer, the electromagnetic simulation software module executes an extending step. The extending step is performed to provide a first metal unit to be connected to the signal layer, and reset the excitation source to be vertically disposed between the first metal unit and the main ground layer.

Abstract: A head mounted device suitable for guiding an exhibition is disclosed. The head mounted device includes an image capturing unit, a process module and an information interface. The process module includes a recognition unit, a computing unit and a control unit. The image capturing unit captures an input image in invisible spectrum. The recognition unit recognizes an invisible code from the input image. The computing unit calculates a relative distance and a relative angle between the head mounted device and an exhibition object. By comparing the relative distance with a threshold distance, the control unit determines whether to trigger the information interface and present an exhibit-object introduction based on relative distance and relative angle.

Abstract: A head mounted device suitable for guiding an exhibition is disclosed. The head mounted device includes an image capturing unit, a process module and an information interface. The process module includes a recognition unit, a computing unit and a control unit. The image capturing unit captures an input image in invisible spectrum. The recognition unit recognizes an invisible code from the input image. The computing unit calculates a relative distance and a relative angle between the head mounted device and an exhibition object. By comparing the relative distance with a threshold distance, the control unit determines whether to trigger the information interface and present an exhibit-object introduction based on relative distance and relative angle.

Abstract: A positive photoresist stripper composition includes a solvent system having solubility parameters which fall within a range from about 8.5 to about 15 in an amount which falls within a range from about 65% to about 98%. An amine is present in an amount which falls within a range from about 2% to about 25%. A fatty acid having 8 to 20 carbon atoms is present in an amount which falls within a range from about 0.1% to about 10% (all percents being by weight). The amount of the amine and of the fatty acid are selected to provide a pH which falls in a range from about 6 to about 9.5. Positive photoresist is stripped from a substrate by immersing the substrate in the aforementioned composition. Metal deposited on the substrate is not attached by the composition.