Abstract: In an embodiment, a method includes: aligning a first package component with a second package component, the first package component having a first region and a second region, the first region including a first conductive connector, the second region including a second conductive connector; performing a first laser shot on a first portion of a top surface of the first package component, the first laser shot reflowing the first conductive connector of the first region, the first portion of the top surface of the first package component completely overlapping the first region; and after performing the first laser shot, performing a second laser shot on a second portion of the top surface of the first package component, the second laser shot reflowing the second conductive connector of the second region, the second portion of the top surface of the first package component completely overlapping the second region.

Abstract: The present invention relates to a treadmill whose speed is controlled by music. An audiosource is installed on the console of the treadmill. The music outputted by the audiosource passes through an amplifier and a band-pass filter takes out the frequency wave at certain range from the music, thereby avoiding unnecessary interference. Besides, a microprocessor is used to enable the driving motor of the walking belt to continuously change its speed according to the music rhythm and intensity. Moreover, the operator of the treadmill adjusts his walking speed to the music rhythm so that the speeds of the music, the motor and the operator are integrated into one speed, thereby enhancing the exercising fun without feeling tired. Furthermore, the operator can move in accordance with the music rhythm, thereby reaching the body shaping effect.

Abstract: A multipurpose flashlight is constructed to include a barrel holding a battery, a lamp head connected to one end of the barrel and holding a lamp bulb, a controller formed of a microprocessor, a PNP transistor and a MOS field effect transistor and adapted to regulate the intensity of light of the lamp bulb installed therein, a selector switch adapted to drive the controller to regulate the intensity of light of the lamp bulb, and a trigger switch adapted to drive the microprocessor to flash the lamp bulb.