Free Newsletter
Register for our Free Newsletters
Newsletter
Zones
Access Control
LeftNav
Alarms
LeftNav
Biometrics
LeftNav
Detection
LeftNav
Deutsche Zone (German Zone)
LeftNav
Education, Training and Professional Services
LeftNav
Government Programmes
LeftNav
Guarding, Equipment and Enforcement
LeftNav
Industrial Computing Security
LeftNav
IT Security
LeftNav
Physical Security
LeftNav
Surveillance
LeftNav
View All
Other Carouselweb publications
Carousel Web
Defense File
New Materials
Pro Health Zone
Pro Manufacturing Zone
Pro Security Zone
Web Lec
 
ProSecurityZone Sponsor
 
ProSecurityZone Sponsor
 
ProSecurityZone Sponsor
 
ProSecurityZone Sponsor
 
ProSecurityZone Sponsor
 
ProSecurityZone Sponsor
 
 
News

Improved manufacturing yield using SWIR cameras

SUI Goodrich : 10 June, 2009  (Application Story)
Infrared area and linescan cameras from SUI Goodrich are being used for quality monitoring on solar cell manufacturing line
Sensors Unlimited, part of Goodrich, announces that high resolution, shortwave infrared (SWIR) area and linescan cameras are being used to improve the manufacturing yield of photovoltaic cells. SWIR technology is well suited to monitor the quality of solar thin films, concentrated PV, and crystalline cells, to maximize efficiency of the solar cell manufacturing process through final assembly of the completed modules.

The InGaAs-based SWIR cameras, which operate between 0.9 to 1.7 microns, are ideal for inspecting silicon boules and wafers due to the material's transparency beyond 1.2 microns. The Goodrich cameras reveal voids in silicon boules, bricks, and ingots before they are sliced into wafers to produce mono- and multi-crystalline solar cells. They can also detect hidden cracks by mapping stress in raw wafers, finished cells, and thin-films made for solar electricity generating panels. SWIR cameras can also spot saw marks on the opposite side of a silicon wafer and/or defects inside the material. In addition, by applying forward bias to cells to generate electroluminescence, the SWIR cameras are used to gauge cell efficiency and uniformity. This aids improvement of cell manufacturing processes, and aids matching cells with similar efficiencies for assembly into modules. The latter step prevents the loss of energy from the stronger cells which would be lost in heating the inefficient cells.

Sensors Unlimited pioneered the design and production of NIR and SWIR cameras and systems utilizing advanced Indium Gallium Arsenide (InGaAs) imaging technology for industrial, commercial, military, agricultural, and scientific markets.

Bookmark and Share
 
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
 
   © 2012 ProSecurityZone.com
Netgains Logo