摘要:
A laser marking method and a laser marking system are provided. The laser marking method includes the following steps. Firstly, a substrate having at least M pattern lines is provided, wherein M is an integer which is larger than or equal to 1. Next, a laser beam is provided. Then, the laser beam is divided into at least two laser sub-beams including a first laser sub-beam and a second laser sub-beam. Afterwards, the second laser sub-beam is aimed at an (N-M)-th pattern line, and an N-th pattern line is marked by the first laser sub-beam, wherein N is an integer which is larger than or equal to M.
摘要:
The present invention discloses a novel electrode-catalyst for direct methanol fuel cell prepared by introducing a carbon precursor into pores of a wormhole-like molecular sieve template, carbonizing the carbon precursor, removing the molecular sieve template to obtain a wormhole-like mesoporous carbon having a high specific surface of 800-1000 m2/g and a pore size of 4-5 nm, and depositing catalyst metal such as Pt—Ru on the mesoporous carbon.
摘要:
An electronic device includes a first module including a first conductive component and a power control unit coupled to the first conductive component. The electronic device further includes a second module, a first hinge for pivoting the second module relative to the first module, and a first arm connected to the first hinge. The power control unit controls whether to execute a first power management status according to whether the first arm contacts the first conductive component as the second module pivots relative to the first module at a first angle by the first hinge.
摘要:
A lamp connection device, which connects with an external circuit and a lamp, comprises an elastic conduction member having at least one engagement section and two winding connection members respectively formed at two ends of the elastic conduction member. The conductive wire of the external circuit and the conductive filament of the lamp are electrically connected to the elastic conduction member via the winding connection members. The engagement section is electrically connected with the conductive wire and conductive filament. Thereby, the lamp can be electrically connected with the external circuit, and the lamp connection device can be bent to flexibly connect to different lamp holders or lamp shades. The serrate structure of the engagement section also can realize invasive electrical connection to prevent increased resistance caused by the oxide layer formed on the surface of the conductive wire.
摘要:
An exposure system including a first laser light source, a second laser light source, a focusing module, an astigmatism generating element, and a photo detector, and an adjustment method thereof are provided. The first laser light source emits a first laser beam. The second laser light source emits a second laser beam. The focusing module includes a light converging unit disposed on transmission paths of the first laser beam and the second laser beam for projecting the first laser beam and the second laser beam onto a material. The material reflects at least a part of the first laser beam into a first reflective beam. The light converging unit and the astigmatism generating element are disposed on the transmission path of the first reflective beam. The photo detector is disposed on the transmission path of the first reflective beam from the astigmatism generating element.
摘要:
A stress sensor includes a circuit board having a stress sensitive structure, a pointing stick and a metallic back plate. The stress sensitive structure includes a stress deformation region and multiple resistors located on the stress deformation region. The pointing stick is disposed on a top of the circuit board and connected to the stress sensitive structure. The metallic back plate includes at least one fixing material coating region, and thus the fixing edges of the circuit board are fixed on the corresponding fixing material coating region. An assembly method for the stress sensor is also provided.
摘要:
A method and device for adjusting communications power are used for detecting a communications condition between a connection port and a connection target, and a communications-supporting power of the connection port that includes at least one of a transmitting power and a receiving power is adjusted according to a detected communications condition. Therefore, accuracy of data transmission and reception is ensured, and power used for data transmission and reception is reduced.
摘要:
A test system provides defect information rapidly and systematically. The test system includes a plurality of test units arranged in a matrix, a plurality of bit lines and a plurality of word lines. Each test unit has a first terminal and a second terminal. Each second terminal of the test unit is electrically connected to a ground point. The first terminals of the test units are electrically connected to the bit lines. The word lines are coupled to the test units. Defects in the each test unit can be identified by providing voltages to the bit lines and the word lines. Accordingly, defects in various devices of an integrated circuit can be detected rapidly and systematically by applying signals to the test system.
摘要:
An interconnect structure is disposed on a substrate with a conductive part thereon and includes a first porous low-k layer on the substrate, a damascene structure in the first porous low-k layer, a second porous low-k layer over the first porous low-k layer and the damascene structure, and a first UV cutting layer at least between the first porous low-k layer and the second porous low-k layer. The damascene structure is electrically connected with the conductive part. The UV cutting layer is a UV reflection layer or a UV reflection-absorption layer.
摘要:
A method for manufacturing metal nano particles having a hollow structure is provided. First, a suitable reducing agent is added into a first metal salt solution, and first metal ions are reduced to form first metal nano particles. Next, after the reducing agent is decomposed, a second metal salt solution with a higher reduction potential than that of the first metal is added. Then, the first metal particles are oxidized to form first metal ions when the second metal ions are reduced on the surface of the first metal by electrochemical oxidation reduction reaction, and thus, second metal nano particles having a hollow structure and a larger surface area are obtained. The method is simple and the metal nano particles with uniform particle size are obtained by this method.