Automatic blanking wafer expander for LED lamps

Abstract

The invention discloses an automatic blanking wafer expander for LED lamps. The wafer expander includes a pedestal, a placing platform used for placing a raw material film, a wafer expanding member which can move up and down, an annular cutting member used for cutting the raw material film, filming pressing members arranged under the annular cutting member, a first driving member used for drivingthe annular cutting member to move up and down, a second driving member used for driving the wafer expanding member to move up and down, and a heating assembly used for heating the raw material film;the annular cutting member is provided with an inclined cutting plane; and the bottom of the cutting plane is provided with a cutter. Through the arrangement of the inclined cutting plane, the cutterarranged at the bottom of the cutting plane can better cuts a waste material film, so that the purpose of automatically removing the waste material film can be realized, working procedures can be decreased, the workloads of workers can be reduced, and production efficiency can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of LED lamps, and in particular relates to an automatic crystal cutting machine for LED lamps. Background technique [0002] Crystal expansion machine is also called wafer expansion machine or chip expansion machine, which is widely used in the grain expansion process in the production of light-emitting diodes, LEDs, integrated circuits and some special semiconductor devices. After the LED chips are produced from the manufacturer, the LED chips are densely fixed On the raw material film, due to the small gap between the LED chips, this kind of raw material cannot be directly grasped and bonded by the die-bonding machine, so it is necessary to expand the raw material film. Since the raw material film itself is elastic, the crystal expansion will make the raw material Stretching the film can change the distance between the LED chips on the raw film. [0003] Although the current crystal expanders on the marke...

AI Technical Summary

Problems solved by technology

[0003] Although the crystal expansion machines currently on the market can achieve a good crystal expansion effect, after the raw material film is stretched, there are many useless parts on the edge, which has an impact on the subsequent process.

Existing crystal expanders are often unable to remove excess raw material film or remove it uncleanly, requiring additional processes to remove excess raw material film, which increases the workload of staff and affects production efficiency

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