A pân junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor. The p side contains an excess of holes, while the n side contains an excess of electrons in the outer shells of the electrically neutral atoms there. This allows electrical current to pass through the junction only in one direction. The p-n junction is created by doping, for example by ion implantation, diffusion of dopants, or by epitaxy ...
ITER is an international collaboration to build the first fusion science experiment capable of producing a self-sustaining fusion reaction, as a way of generating a clean, safe, and sustainable power.
The Client Development Evaluation Report (CDER) is an instrument used to collect diagnostic and evaluation information on individuals with developmental disabilities. A CDER is completed by a regional center or developmental center on each individual at the time of the initial Individual Program Plan (IPP) and is updated whenever there is a new IPP.