The production of solar cells starts from the series welding of cells. String the single cells according to the requirements, and then stack them in the order of glass / EVA / cell / EVA / back plate. After checking that they are correct, put them into the laminator for vacuum pumping and pressurization. After about 20 minutes, the two layers of EVA melt, stick the glass and cell, cell and back plate closely, trim the edges and install the frame, Add a junction box, test, and a solar panel will come out.