Method for improving CIGS mechanical efficiency for scribing in special vacuum adsorbing positioning mode

Abstract

The invention mainly aims to provide a method for improving CIGS mechanical efficiency for scribing in a special vacuum adsorbing positioning mode. When scribing is performed on a CIGS absorbing layer with a mechanical scribing machine, deviation happens in the positioning process, generally, a clamp is used for fixing and positioning, but the clamp is prone to damaging the film surface, and when glass moves for scribing, the clamp probably totally grabs the glass. The method takes the conditions that the CIGS glass works in a tangent mode under the condition of the mechanical scribing machine, and a tool bit moves from top to bottom into consideration. Thus, the vacuum adsorbing positioning mode is designed, first, the glass is pushed to be a positioning place and abuts against a positioning pin, then, a vacuum state is started, vacuum pressure does not need to be too high, it is fine for the vacuum pressure to adsorb the glass, next, the glass is totally adsorbed, at the moment, the mechanical tool bit can start scribing, the glass is fixed in the vacuum adsorbing positioning mode, it is avoided that the film surface is damaged by the clamp, and the power generation area is greatly increased for increasing the efficiency of CIGS solar heaters.

Description

technical field [0001] This method is the CIGS scribing technology, which is the technical core of thin-film solar energy. Like amorphous silicon and microcrystalline silicon, CIGS needs to be cut into small pieces of cells for series power generation, which can increase the voltage and current of solar cells to improve power generation. efficiency, and in amorphous silicon and microcrystalline silicon, laser laser is used for scribing, while CIGS is mainly due to material problems. If laser scribing is used, the phase inversion of CIGS material will be caused by thermal effects, so mechanical methods are mainly used. The scribing machine performs scribing, but the general mechanical scribing machine needs clips to fix the glass when fixing the glass, but the clip fixing may damage the film surface and affect the alignment accuracy. This invention uses a special vacuum adsorption positioning The glass can be fixed on the platform by vacuum adsorption, and the marking is done a...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of this invention is to improve the efficiency of CIGS mechanical scribing by special vacuum adsorption positioning. When the CIGS absorption layer is marked by a mechanical scribing machine, there will be a problem of positioning offset. Generally, it is often seen that clips are used. Fixed positioning, but the use of clips is easy to damage the film surface, and when the glass moves in the scribing line, the clips will not be able to fully grasp the glass. Therefore, the present invention considers that CIGS glass can be used under the mechanical scribing machine. Use tangent, and the cutter head is carried out from the top to the bottom, so the positioning method of vacuum adsorption is designed, first push the glass to the position, and rely on the positioning pin, and then the vacuum is opened by the present invention, and the vacuum pressure does not need to be too high High, as long as the glass can be sucked, then the glass will be completely absorbed. At this time, the mechanical knife head can be used to start marking, and the glass can be fixed by this vacuum adsorption positioning method, and the use of clips will not cause the film surface The problem of damage, and also increase the power generation area to increase the efficiency of CIGS solar energy

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