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Innovations in Solar Cell Bond Testing
Author: Dirk Schade
Monday, July 26, 2010

The mechanical and electrical quality of solar cell interconnection ribbon bonds is critical to optimizing photovoltaic manufacturing yield, energy conversion efficiency and product life expectancy. Some bonds can be tested using a ribbon peel test, where the force required to peel (break) the bond is measured, and the observed failure mode used to characterized the quality of the bond.

File: Innovations_in_Solar_Cell_Bond_Testing.pdf (388.47 KB)
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Automated Inspection Lowers Solar Cell Costs
The solar cell market is poised to experience exceptional growth, but continued success in the market will require manufacturers to drive production costs down. Automated optical inspection (AOI) using machine vision systems will play a key role in this cost reduction by speeding production and reducing waste. The challenge is to have the right vision system for each inspection task.
- Teledyne DALSA, Machine Vision OEM Components
Characterization to the Extremes: Terahertz materials characterization at cryogenic temperatures and high magnetic fields
In continuing pursuit of improved performance, higher processing speed, and more compact packaging, researchers spend considerable time identifying and characterizing novel and previously unexplored materials. Recently, the terahertz frequency range has emerged as a new frontier for materials science, helping to map out this unknown territory. This paper explores how THz energy can be used to gain insights into material properties, particularly under variable or extreme temperatures and...
- Lake Shore Cryotronics, Inc.
Characterization of Light Emitting Diodes (LEDs) and Compact Fluorescent Lamps (CFLs) by UV-Visible Spectrophotometry
The acceptance and commercial utilization of Compact Fluorescent Lamps (CFLs) and, more recently, Light Emitting Diodes (LEDs) have grown significantly in the past five years, leading to increased research. This paper demonstrates the use of a typical laboratory UV-Vis spectrophotometer to measure and characterize CFL and LED lamps, focusing on spectral characteristics such as peak wavelength, Full Width at Half Maximum, centroid wavelength, dominant wavelength, color, and color purity.
- Shimadzu Scientific Instruments, Inc.

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