SLAM examination of solar cells and solar cell weldsThe scanning laser acoustic microscope (SLAM) has been evaluated for non-destructive examination of solar cells and interconnector bonds. Using this technique, it is possible to view through materials in order to reveal regions of discontinuity such as microcracks and voids. Of particular interest is the ability to evaluate, in a unique manner, the bonds produced by parallel gap welding. It is possible to not only determine the area and geometry of the bond between the tab and cell, but also to reveal any microcracks incurred during the welding. By correlating the SLAM results with conventional techniques of weld evaluation a more confident weld parameter optimization can be obtained.
Document ID
19820061427
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Stella, P. M. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Vorres, C. L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Yuhas, D. E. (Sonoscan, Inc. Bensenville, IL, United States)