Separation process of thin crystalline silicon-wafer with compressed air

Researchers at Fraunhofer IPA investigated the influences on wafers/cells, which are caused by the handling processes along the entire production line. This area of interest is especially important in the dry separation of wafers, which is carried out after wafering and at the start of solar cell manufacturing. In the research further developments and evaluations of the separation process with compressed air were carried out. In the excerpt an overview of the test results, obtained with the pre-separation module, which is integrated into the thin wafer automation test platform is provided. The analysis was divided into two working packages: 1. Precise and continuous pre-separation with compressed air, 2. Safe and repeatable picking process.