Fracture strength of GaAs solar cells as a function of manufacturing process stepsFracture of single crystal GaAs substrate during the solar cell processing is an important factor in solar cell yield and cost. Fracture mechanics technique was utilized to evaluate cell cracking characteristics and changes in fracture strength of GaAs solar cells in a present state-of-the-art of manufacturing process for GaAs solar cells from wafer to complete cell of a typical production line. Considerable change in the fracture strength of GaAs solar cells as a function of cell processing was found. The strength data were described by Weibull statistical analysis and can be interpreted with the change of flaw distribution of each of the manufacturing process steps.
Document ID
19870032589
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chen, C. P.
Leipold, M. H. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)