Solar Module Manufacturing Process

1. Cell Testing:

Sorting, visual inspection, and performance testing of silicon cells to ensure consistent efficiency.

2. Laser Scribing:

Using a laser to cut whole cells into half or smaller pieces to reduce solder ribbon current loss and improve power output.

3. Soldering & Stringing:

 Soldering cells with different polarities into strings using solder ribbons; this is the core conductive step of the module.

4. Layup:

Laying EVA film, welded cell strings, another layer of EVA film, and a backsheet (or double-glass) onto tempered glass in sequence to form the module structure.

5. Lamination:

Placing the laminated module into a laminator, melting the EVA film under high temperature and vacuum conditions to bond the glass, cells, and backsheet together, completing the vacuum seal.

6. Trimming:

Removing excess EVA film and material after lamination to keep the module edges smooth.

7. Framed:

Apply silicone to the component frame and install the aluminum alloy frame to enhance the component's mechanical strength and sealing.

8. Junction Box Assembly:

Install the junction box for current output and seal it securely.

9. Curing:

Heat the component to stabilize its structure.

10. Final Testing and Packaging:

Perform cleaning, EL (electroluminescence) crack detection, and IV performance testing (power measurement). After passing these tests, package and store the component.