3results about How to "Average distribution" patented technology

This invention provides a semiconductor manufacturing process, comprising using a computer system to divide a wafer area into multiple exposure areas and distribute multiple observation points in each exposure area (shot), identifying a portion of boundary areas from all exposure areas, calculating the number of observation points in each boundary area, and eliminating boundary areas with fewer than 3 observation points, counting the observation points in the remaining boundary areas, and deleting a portion of the observation points until the total number of observation points meets a preset total and the observation points are uniformly distributed, and performing an alignment measurement step on the remaining observation points to generate an offset vector map.

The invention discloses a uniform material distribution device for a crusher, comprising a plate-type material distributor (1), a material delivery chute (2), a rocker (3), a material baffle plate (4) and a rotating shaft (5), wherein the material delivery chute is arranged at an upper opening of the plate-type material distributor, a bearing seat (6) communicating with an inner cavity of the material delivery chute is arranged on the outer wall of the material delivery chute, and a bearing (7) matched therewith is arranged in the bearing seat, the rotating shaft passes through the bearing and the inner cavity of the material delivery chute, the rocker is arranged on the outer side of the bearing and passes through the bearing to be transmission-connected with the rotating shaft (5), the material baffle plate (4) is arranged on the rotating shaft (5) in the material delivery chute (2) at an angle relative to a horizontal plane, and the rocker (3) is driven by a motor and a crank rocker mechanism to make the material baffle plate (4) swing up and down along the rotating shaft (5) so as to adjust the inclination angle of the material baffle plate (4). The invention can evenly distribute materials on the crushing roller of the crusher, achieve uniform material distribution, high working efficiency, long service life, and reduce the cost of replacing wear-resistant parts.

This invention provides a power distribution unit and a charging device. The power distribution unit includes: a plurality of distribution components arranged sequentially along a first direction; each distribution component includes a circuit board and a plurality of onboard relays; the circuit board extends along a second direction, and each onboard relay is disposed on the circuit board; the second direction is perpendicular to the first direction; a bus assembly including a plurality of first busbars and a plurality of second busbars, the first busbars crossing at least one distribution component and connecting one end of each onboard relay located in different distribution components, the second busbars connecting the other end of each onboard relay located in the distribution component to connect or disconnect current loops through the onboard relays; an outer frame including at least two side frames arranged along the second direction; the two ends of the circuit board in the distribution component along the second direction are inserted and fixed to the corresponding side frames along a third direction. This power distribution unit has the advantages of small size, low cost, and convenient maintenance.