Abstract: The present disclosure provides a body-part tracking device and a body-part tracking method. The body-part tracking device includes a first electronic component and a first antenna element. The first antenna element is electrically connected to the first electronic component and configured to receive a first wave. The first electronic component is configured to, in response to the first wave, transmit a second wave.

Abstract: A semiconductor package structure includes a carrier, an antenna element, an electronic component, and a conductive structure. The antenna element, which includes an exposed portion, is disposed on the carrier. The conductive structure is disposed between the carrier and the exposed portion of the antenna element. The conductive structure electrically connects the electronic component to the carrier. The carrier, the exposed portion of the antenna element, and the conductive structure define an air space to accommodate the electronic component and to space the electronic component apart from the conductive structure.

Abstract: A semiconductor package structure includes a carrier, an antenna element, an electronic component, and a conductive structure. The antenna element, which includes an exposed portion, is disposed on the carrier. The conductive structure is disposed between the carrier and the exposed portion of the antenna element. The conductive structure electrically connects the electronic component to the carrier. The carrier, the exposed portion of the antenna element, and the conductive structure define an air space to accommodate the electronic component and to space the electronic component apart from the conductive structure.

Abstract: The present invention provides a mobile member operation method suitable for a mobile electronic device, and the mobile electronic device is connected to a service server by a network. The mobile member operation method comprising: the mobile electronic device receives an update command. The mobile electronic device transmits the update command to the service server by the network. The service server determines that whether the user is a member and searches discount information by specific searching criteria, such as store location, industries, or other criteria, according to the update command. The service server transmits the discount information to the mobile electronic device for storing in a memory of the mobile electronic device if the user is a member. The mobile electronic device displays the discount information and receives a using command; and the mobile electronic device outputs the discount information.