Abstract: A multi-frequency antenna includes a substrate, an antenna portion and a radiator. The antenna portion has a low-frequency radiation antenna and a high-frequency radiation antenna. By selectively coupling the low-frequency radiation antenna, the high-frequency radiation antenna and the radiator, the multi-frequency antenna can work in multiple frequency bands.

Abstract: A multi-frequency antenna includes a substrate, an antenna portion and a radiator. The antenna portion has a low-frequency radiation antenna and a high-frequency radiation antenna. By selectively coupling the low-frequency radiation antenna, the high-frequency radiation antenna and the radiator, the multi-frequency antenna can work in multiple frequency bands.

Abstract: A separation apparatus for separating two planar devices bonded together by an adhesive layer is provided. The separation apparatus includes a base, a sliding module, a cutting member, and a positioning stage. The sliding module is mounted on the base. The cutting member is connected to the sliding module and is moveable in a two-dimensional plane with respect to the base by the sliding module for cutting the adhesive layer. The positioning stage is mounted on the base for positioning the planar devices and the adhesive layer therebetween on the base.

Abstract: A separation apparatus for separating two planar devices bonded together by an adhesive layer is provided. The separation apparatus includes a base, a sliding module, a cutting member, and a positioning stage. The sliding module is mounted on the base. The cutting member is connected to the sliding module and is moveable in a two-dimensional plane with respect to the base by the sliding module for cutting the adhesive layer. The positioning stage is mounted on the base for positioning the planar devices and the adhesive layer therebetween on the base.

Abstract: A method and a system for processing engineer-designed data are provided. A data receiving/transmitting module receives engineer-designed data from an engineer design department upon receiving a data receiving request from a user through a network terminal device via a network communication system. Then, a data comparison module compares the received engineer-designed data with associated engineer-designed data stored in a database to obtain consistent engineer-designed data. A file producing module transforms the consistent engineer-designed data into a document file in a specific format. The data receiving/transmitting module transmits the transformed document file to an engineer unit corresponding to an engineering stage where the document file is formed. Finally, a data storage module stores the document file confirmed by the engineer unit in the database.