Abstract: A light-emitting diode and a manufacturing method thereof are provided. The manufacturing method includes following steps. First, an LED wafer is provided. The LED wafer includes a substrate and a light-emitting semiconductor stacking structure positioned on the surface of the substrate. The light-emitting semiconductor stacking structure includes a first type semiconductor layer, an active layer, and a second type semiconductor layer from a side of the substrate. Second, dicing lanes are defined on the upper surface of the LED wafer. Third, dicing is performed along the dicing lanes of the substrate using a laser. The laser is focused on the lower surface of the substrate to form a surface hole and focused inside the substrate to form an internal hole. The diameter of the surface hole is greater than the diameter of the internal hole. Fourth, the LED wafer is separated into LED chips along the dicing lanes.

Abstract: A computer waking method applied to a computer having a Bluetooth signal receiving port, and with the computer waking method comprises: determining whether the computer receives a trigger instruction when a processor of the computer stops working and the computer is operated in a power saving mode; determining whether an intensity of a communication signal related to a registered mobile device obtained by the Bluetooth signal receiving port falls within an working intensity range; and enabling the processor to make the computer operate in a working mode when the computer receives the trigger instruction and the intensity of the communication signal falls within a working intensity range.

Abstract: A computer waking method applied to a computer having a Bluetooth signal receiving port, and with the computer waking method comprises: determining whether the computer receives a trigger instruction when a processor of the computer stops working and the computer is operated in a power saving mode; determining whether an intensity of a communication signal related to a registered mobile device obtained by the Bluetooth signal receiving port falls within an working intensity range; and enabling the processor to make the computer operate in a working mode when the computer receives the trigger instruction and the intensity of the communication signal falls within a working intensity range.

Abstract: A password management and authentication method suitable for an electronic device with a trusted platform module (TPM) is provided. An authentication code is automatically generated according to a TPM password, and the authentication code is stored into an authentication device selected by a user. The authentication device storing the authentication code is directly served as an electronic key of the TPM so that the user needs not to memorize any password and can access data or a hard disk (HD) encrypted by the TPM by simply connecting the authentication device to the electronic device. Thereby, it is very convenient to the user.