FDTD method analysis tool for LEDs with two different surface structures.
Two types of LED device structures with different surface shapes were simulated using the FDTD method in APSYS, resulting in an angle-dependent light intensity distribution. The differences in surface shape are reflected in the light intensity. A 3D structure can be simulated using the same method as in 2D.
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basic information
<Main Features> ■General-purpose 2D/3D finite element analysis and design software for semiconductor devices ■Applicable to almost all device design and analysis except for semiconductor lasers ■Can be used for the design of devices made from silicon and compounds <Diverse Physical Models and Functions> ■Current-voltage (I-V) characteristics ■Two-dimensional distribution of potential, electric field, and current ■Two-dimensional distribution of hot carrier temperature in fluid dynamics models ■Two-dimensional distribution of lattice temperature used in thermal transport models ■Band diagrams under various bias conditions ■Results of AC small-signal response analysis at arbitrary frequency bands ■Subbands of quantum wells using a carrier mixing model ■Two-dimensional distribution of impurity occupancy and density trapped at deep levels in semiconductors ■Two-dimensional optical field distribution of optical devices such as photodetectors ■Current dependence of the self-emission spectrum of LEDs ■FDTD interface <Interface> ■Standard tools for structure input and result display ■Described in a proprietary scripting language, executable from GUI or command line ■Program control possible via batch files or scripting language
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Applications/Examples of results
Device analysis of an LED with two different surface structures using the FDTD method.
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Company information
Crosslight Software Inc. (formerly Beamtek Software Inc.) is an international company that became independent from the National Research Council of Canada in 1992 and established its headquarters in Canada. Currently, it is headquartered in Vancouver, with a branch established in Shanghai in 1997 and another in Chiba City, Japan, in September 2001. As a developer of TCAD software that analyzes the physical properties of semiconductor laser devices, light-emitting and light-receiving elements, MEMS, and MOCVD processes, we are a leading company that consistently provides cutting-edge physical models for semiconductor optoelectronics and electronic device and process technologies. Our flagship product, the three-dimensional semiconductor laser diode simulator PICS3D, received the Commercial Technology Achievement Award from the industry magazine Laser Focus World in 1998.