Solar Metalization
9Pages

Metallization System An Effective Metallization System for Solar Cells Metallization system Screen printer A manufacturing process line that prints out electrode poles and plasticizes on top of the wafer to produce cells, and inspects, measures, and classifies defects and efficiency The belt conveyor system has minimized wafer damage and automatic inspection/sorting equipment have reduced the number of line workers while raising productivity. The graphic user interface, which allows real-time monitoring of each process, has made ma- nipulation more convenient. Also integrated management through application of the CIM system is possible.

Metallization system Screen printer Printer System Magazines loader Inspection module Printer module Vertical type Color inspection module Sorting module

Metallization system Screen printer Screen Printer Composition • Screen printer system • Automated rejection • Pattern inspection • Safe and fast transfer of wafers is possible using the conveyor belt. • A flat type squeegee allows for high resolution in fine line printing and extends • The printing angle of the squeegee located on the printer head can be adjusted to meet customer needs for print resolution.

Screen Printer System Metallization system Screen printer Screen Printer High quality printing while using small amounts of paste is possible. The system's specifications allow for minimum wafer damage and has a user interface for conveni- ent user operation. Maintenance is also simple and easy. Excellent quality printing High throughput printing

Pattern Inspection Metallization system Screen printer Pattern Inspectiont A function to detect missing patterns and broken or chipped wafers after printing and send such defect wafers to the auto reject bin is provided.

Metallization system Screen printer Dryer Composition Heat Source An equipment for drying the surface of cells with completed electrode printing . The in-line type is applicaPle upon customer request. A rotary dryer enaPles efficient drying of large numPers of wafers. • Small foot print • Heat source • Heating process • Wafer pick-up The same level of drying is possiPle through an efficient air flow design. • Heating process (Pre heating: 2min, Drying: 5min, Cooling: 2min)

• Cells are quickly and safely transported using the walking beam and bel: conveyor. • Cells can be classified into 48 bins and the bin can be set according to customer needs. • Accurate classification and loading of cells is possible using three types of inspection equipment. • Inspection equipment: EL tester: Detects cell micro cracks and defects Color-Q : Inspects the coating thickness of fired cells and printing pattern i-V tester: Measures cell efficiency

Tester / Sorter Detect cell micro cracks Sorter Composition • EL tester: Detects cell micro cracks • Color-Q: Inspects coating thickness and pattern • l-V tester: Measures cell efficiency parameters

Metallization system Screen printer Wide range of cell classifications