Abstract: The present invention relates to a multilayer film for air purification and a method for manufacturing the same and, more particularly, to a multilayer film for air purification having a thin and uniform shape, thereby exhibiting a high degree of utility as a mask and an air purification filter, as well as having an excellent air purification function, and a method for manufacturing the same. The objective of the present invention is to provide a multilayer film for air purification and a method for manufacturing the multilayer film for air purification, which comprises yellow ocher-activated carbon composite particles capable of removing fine dust, bacteria, odor, VOC, etc. present in the air.

Abstract: The present invention relates to a multilayer film for air purification and a method for manufacturing the same and, more particularly, to a multilayer film for air purification having a thin and uniform shape, thereby exhibiting a high degree of utility as a mask and an air purification filter, as well as having an excellent air purification function, and a method for manufacturing the same. The objective of the present invention is to provide a multilayer film for air purification and a method for manufacturing the multilayer film for air purification, which comprises yellow ocher-activated carbon composite particles capable of removing fine dust, bacteria, odor, VOC, etc. present in the air.

Abstract: A method of testing a semiconductor device using the test equipment includes loading an undivided printed circuit board (PCB) including unit PCBs in a test equipment. A semiconductor device is mounted in each of the unit PCBs. Product information of the undivided PCB loaded in the test equipment is confirmed. The undivided PCB whose product information has been confirmed is electrically connected to one of a plurality of main testers of the test equipment. Each of the main testers includes a main test interface directly connected to a cloud server in which firmwares for various kinds of tests are stored. The product information of the undivided PCB is transmitted to the main tester electrically connected to the undivided PCB. The main tester to which the product information has been transmitted performs a main test of the undivided PCB using the product information. The undivided PCB on which the main test has been performed by the main tester is unloaded from the test equipment.

Abstract: The ink for printing an antenna pattern for a mobile phone according to an embodiment of the present invention includes a mixture of one of silver (Ag) powder, nickel (Ni) powder, copper (Cu) powder, and gold (Au) powder, liquid acrylonitrile, liquid polystyrene, liquid butadiene, and methyl ethyl ketone (MEK) as a diluent. The present invention does not include a plating process, and thus allows a significant improvement in productivity.

Abstract: A method of testing a semiconductor device using the test equipment includes loading an undivided printed circuit board (PCB) including unit PCBs in a test equipment. A semiconductor device is mounted in each of the unit PCBs. Product information of the undivided PCB loaded in the test equipment is confirmed. The undivided PCB whose product information has been confirmed is electrically connected to one of a plurality of main testers of the test equipment. Each of the main testers includes a main test interface directly connected to a cloud server in which firmwares for various kinds of tests are stored. The product information of the undivided PCB is transmitted to the main tester electrically connected to the undivided PCB. The main tester to which the product information has been transmitted performs a main test of the undivided PCB using the product information. The undivided PCB on which the main test has been performed by the main tester is unloaded from the test equipment.

Abstract: The ink for printing an antenna pattern for a mobile phone according to an embodiment of the present invention includes a mixture of one of silver (Ag) powder, nickel (Ni) powder, copper (Cu) powder, and gold (Au) powder, liquid acrylonitrile, liquid polystyrene, liquid butadiene, and methyl ethyl ketone (MEK) as a diluent. The present invention does not include a plating process, and thus allows a significant improvement in productivity.

Abstract: Disclosed is a method of transmitting and receiving a broadcasting short message in a mobile communication system, wherein the system transmits and receives the message using a paging channel. The system transmits a first information for informing arrival of the message data and a second information that indicates a position of a target time slot in a communication packet in which the message data is included. The system also includes the message data in the target slot. The message data is carried over a paging channel, wherein the first information and the second information are included in a general page message for transmission. The short message is included in a data burst message for transmission.

Abstract: Disclosed is a method of keeping-alive a session and a packet control function for the same. According to the present invention, a packet control function, A packet control function, comprises a packet data control section for generating messages for keeping-alive of a session between a terminal and a network, and a session management section for keeping-alive the session based on the messages.