The invention relates to a
laser film
engraving machine for a multichannel
amorphous silicon solar panel, which comprises a
laser module, a total reflective mirror, a
beam splitter, a high reflective mirror, a beam expanding mirror, a driving Q-switching switch, a frequency doubling
crystal, a focusing mirror and an X-Y mechanical platform. The
laser film
engraving machine for the multichannel
amorphous silicon solar panel is characterized in that frequency doubling laser generated by the laser module, the total reflective mirror, the high reflective mirror, the driving Q-switching switch and the frequency doubling
crystal is subjected to beam expanding and collimation of the beam expanding mirror, passes through the
beam splitter, and is subjected to multiple reflection or transmission of the total reflective mirror and focusing of the focusing mirror to form four paths of frequency doubling laser, and the four paths of frequency doubling laser are attached to the mechanical platform and move in the X axial direction or the Y axial direction, so that simultaneous
processing of a solar panel in multiple paths can be realized. The laser film
engraving machine for the multichannel
amorphous silicon solar panel has novel concept, reasonable design and standard technology, can meet the
processing requirements of solar panels with different specifications, has the characteristics of low
processing cost, small floor space of equipment, and so on can quickly form industrial
mass production, and can be widely applied to the engraving technology of bottom electrodes,
photovoltaic effect layers and surface
ohmic contact electrode layers in the technological flow of thin-film solar cells.