Abstract: The invention relates to an intelligent POS machine. The intelligent POS machine comprises a housing, a card reading module, a turning plate, and a rear work module; the housing is internally provided with an embedding groove; the card reading module is located in the embedding groove; the rear work module is installed on the turning plate; the turning plate is hinged on an inside wall of the embedding groove and located above the card reading module; the housing is internally provided with a control board; the card reading module is connected with the control board, and the rear work module is connected with the control board through an FPC board. In this way, the whole exterior of the POS machine is more integrated and more elegant.

Abstract: A transmission device having a data storage function and capable of being in a folded state by a magnetic force includes a first transmission port (e.g., a Lightning plug) at one end, a second transmission port (e.g., a USB plug) at the other end, a flexible bending portion in the middle section, two magnetically attractive portions respectively adjacent to two opposite ends of the bending portion, and a card reader or data storage unit. Once the first transmission port is connected to a portable device (e.g., a smartphone) to allow the portable device to read data from the transmission device, the bending portion can be bent so that, by the magnetic force of the magnetically attractive portions, the transmission device is rendered into a folded state and is partially hidden behind the portable device to facilitate holding and avoid getting loose and falling off.

Abstract: A back-contact solar cell and manufacturing method thereof includes steps of providing a substrate, forming a first conductive doping region and a second conductive doping region on the substrate, forming a passivation layer on the substrate to cover the first conductive doping region and the second conductive doping region, distantly disposing a plurality of first electrode paste clusters on the passivation layer, in which each first electrode paste cluster corresponds to the first conductive doping region and the second conductive doping region and includes a metal component and a glass component, enclosing the first electrode paste cluster by a plurality of second electrode pastes, and heating at least the first electrode paste clusters to an predetermined temperature so that the metal component, the metal component and the passivation layer contacted by the first electrode paste clusters forms a plurality of contacting regions.