Abstract: A brake warning device and method includes acquiring acceleration data of a bicycle, and calculating a specific parameter according to the acceleration data acquired within a preset interval using a preset calculation method. The bicycle is determined to be decelerating if the specific parameter is less than a preset threshold value. A brake light of the brake warning device is turned on to warn that the bicycle is braking.

Abstract: An ejector with multi-ejection pins is used in the post-processes of the semiconductor industry and is used by a selection device to choose a predetermined quantity of ejection pins. When a propelling device lifts the selection device, a pin-base vertical driver controls the vertical motion of a pin base, and a pin-base motion device controls the planar motion of the pin base; the chosen ejection pins can be lifted to elevate the respective dies for separation from adhesive film.

Abstract: An ejector with multi-ejection pins is used in the post-processes of the semiconductor industry and is used by a selection device to choose a predetermined quantity of ejection pins. When a propelling device lifts the selection device, a pin-base vertical driver controls the vertical motion of a pin base, and a pin-base motion device controls the planar motion of the pin base; the chosen ejection pins can be lifted to elevate the respective dies for separation from adhesive film.

Abstract: A balancing vertical load device for a motor, to be used in conjunction with a vertical driving device with a force- and position-controlled motor, comprising a motor assembly and a sealed air pressure system. The motor assembly has a motor, and a load weight which, driven by the motor, performs a vertical movement. The sealed air pressure system has an air cylinder, a piston, gliding inside the air cylinder with low friction and being connected with the load weight, an air container, storing a relatively large air volume, and an air pressure source. The sealed air pressure system balances a load of the load weight, so that precise control of force and position of a vertically moving object, as if moving horizontally, is achieved.

Abstract: A balancing vertical load device for a motor, to be used in conjunction with a vertical driving device with a force- and position-controlled motor, comprising a motor assembly and a sealed air pressure system. The motor assembly has a motor, and a load weight which, driven by the motor, performs a vertical movement. The sealed air pressure system has an air cylinder, a piston, gliding inside the air cylinder with low friction and being connected with the load weight, an air container, storing a relatively large air volume, and an air pressure source. The sealed air pressure system balances a load of the load weight, so that precise control of force and position of a vertically moving object, as if moving horizontally, is achieved.

Abstract: A voice-coil motor for picking up chips is disclosed. Through the electromagnetic force generated from the voice-coil motor, the invention can accurately control its strength when picking up a chip. The procedure of picking a chip is as follows: first, a chip is separated from a blue film due to the force of a rising ejectpin; then a pickup head is used to suck the chip to an assigned place. In particular, when the ejectpin pushes the chip up, the pickup head is controlled to rise together with the ejectpin so that the ejectpin also raises the pickup head. Through the above-mentioned control, the stress on the chip can be reduced, preventing the chip from being broken.

Abstract: A position-, speed- and force-controllable chip accessing apparatus comprises a fixing seat, a rotational direction moving device, a linear direction moving device, and a position sensing device, characterized in that a flexible positioning means is provided at a proper central site of said fixing seat and is screw fixed with said rotational direction moving device; one side of said rotational direction moving device is coupled with said linear direction moving device, while the other side of said rotational direction moving device is coupled with said position sensing device screw; and that by measuring with a speed sensor and a position sensing device on said linear direction moving device, the control of the force, speed and moving distance can be achieved.

Abstract: A position-, speed- and force-controllable chip accessing apparatus comprises a fixing seat, a rotational direction moving device, a linear direction moving device, and a position sensing device, characterized in that a flexible positioning means is provided at a proper central site of said fixing seat and is screw fixed with said rotational direction moving device; one side of said rotational direction moving device is coupled with said linear direction moving device, while the other side of said rotational direction moving device is coupled with said position sensing device screw; and that by measuring with a speed sensor and a position sensing device on said linear direction moving device, the control of the force, speed and moving distance can be achieved.