Abstract: A circuit check method and an electronic apparatus applicable to a to-be-tested circuit are provided. The to-be-tested circuit has one or more first nodes related to a gate voltage of one or more transistor devices and a plurality of second nodes. The circuit check method includes: setting endpoint voltages of a plurality of input interface ports of the to-be-tested circuit; obtaining a first node voltage of the first node according to a conduction path of the to-be-tested circuit and the gate voltage of the transistor device; obtaining a second node voltage of each second node according to the conduction path, the endpoint voltages, and the first node voltage; and performing circuit static check on the to-be-tested circuit by applying the first node voltage and the second node voltage.

Abstract: An optical proximity correction (OPC) device and method is provided. The OPC device includes an analysis unit, a reverse pattern addition unit, a first OPC unit, a second OPC unit and an output unit. The analysis unit is configured to analyze a defect pattern from a photomask layout. The reverse pattern addition unit is configured to provide a reverse pattern within the defect pattern. The first OPC unit is configured to perform a first OPC procedure on whole of the photomask layout. The second OPC unit is configured to perform a second OPC procedure on the defect pattern of the photomask layout to enhance an exposure tolerance window. The output unit is configured to output the photomask layout which is corrected.

Abstract: A pin fixing type hand tool structure includes a tool head body, a grip body and an abutting fixing block, and cut corners are formed between the tool head body, the grip body and the abutting fixing block and provided for alignment and positioning, so that the three can be stably engaged with one another by the cut corners. The structure is simple and the assembling is convenient, and the production and assembling costs are reduced to achieve high structural stability and assembly convenience.

Abstract: The present invention provides methods and systems for matchmaking of on-line transaction. Users could apply the platform of the present invention to make various transactions as well as correct decisions according to the remarkable effects of virtual reality. Therefore, the present invention would not only prompt the market of artwork, but also decrease the cost of transaction.