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Quantum-dot Cellular Automata (QCA) - Memory Cells
03 Feb 2006 | Animations | Contributor(s): John C. Bean
Scientists and engineers are looking for completely different ways of storing and analyzing information. Quantum-dot Cellular Automata are one possible solution. In computers of the future, transistors may be replaced by assemblies of quantum dots called Quantum-dot Cellular Automata (QCAs).This …
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Quantum-dot Cellular Automata (QCA) - Logic Gates
03 Feb 2006 | Animations | Contributor(s): John C. Bean
An earlier animation described how "Quantum-dot Cellular Automata" (QCAs) could serve as memory cells and wires. This animation contnues the story by describing how QCAs can be made into MAJORITY, OR, AND, and INVERTER logic gates.
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How Semiconductors and Transistors Work
20 Nov 2005 | Animations | Contributor(s): John C. Bean
This animation shows how semiconductor crystals work and how they are used to make transistor switches.
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Molecular Beam Epitaxy
16 Nov 2005 | Animations | Contributor(s): John C. Bean
Microelectronic devices are made by repeating two steps: 1) Depositing a thin uniform layer of material; 2) Then using a photographic process to pattern and remove unwanted areas of that layer.
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Scanning Electron Microscope
16 Nov 2005 | Animations | Contributor(s): John C. Bean
This resource describes a scanning electron microscope (SEM). It includes detailed depictions of how the electron beam is focused and used to create hugely magnified images of experimental specimens.
