Abstract: A device for Over-the-Air testing includes a carrier unit, an automatic positioning member and a housing unit. The automatic positioning member is adapted to convey an object under test to an electrical connection zone of the carrier. The housing unit includes a housing shell, a pressing plate and a receiver. The housing shell defines a testing space that has an open end where the pressing plate is disposed. The housing unit and the carrier unit are movable relative to each other. When the carrier unit abuts the housing unit, the object under test is exposed to the testing space and is pressed against the electrical connection zone by the pressing plate so that electromagnetic waves from the object under test are received by the receiver.

Abstract: A wafer transferring device adapted to suck and transfer a first wafer is provided. The wafer transferring device includes an arm and a supporting carrier. The supporting carrier is connected to the arm. The supporting carrier has a single vacuum suction port exposed to an upper surface of the supporting carrier. The supporting carrier is adapted to move to a position below the first wafer. The single vacuum suction port is adapted to suck a first central region of the first wafer so as to lift up and transfer the first wafer.

Abstract: The communication interface including a data encoder. The data encoder receives a data package which has at least one first output signal with N bits, generates and outputs at least one transmitting signal during one period of a reference clock signal and determining a voltage level of the transmitting signal according to a logic value of the first output signal, wherein N is an integer larger than 1.

Abstract: A manufacturing process method for pneumathode of an inflatable body-heat retaining jacket with layers of a micro-pores PU coating as the base coating and a hydrophilic PU coating as the face coating, which applied upon nylon or polythene fabrics or its interwoven fabrics, and followed by a high frequency welding, to obtain a stable bonded PU coating fabrics, characterized by water vapor permeability, water resistance, and air-tightness. Applying the high frequency welding to the jacket made of PU coating fabrics will generate a pneumathode chamber within layers. Adjustment of thickness thereof can be made by inflating or deflating air through air valves. The body vapor permeates through micro-pores PU coating, thereby reducing uncomfortable sultriness. Vapor thereafter adheres on the breathable PU coating and releases condensation heat to the pneumathode chamber, which also serving for blocking cold air from outside, thereby retaining the body heat.