substrate diffusion
81Microfabrication — Synthetic detail of a micromanufactured integrated circuit through four layers of planarized copper interconnect, down to the polysilicon (pink), wells (greyish) and substrate (green) Microfabrication is the term that describes processes of… …
82LOCOS — LOCOS, short for LOCal Oxidation of Silicon, is a microfabrication process where silicon dioxide is formed in selected areas on a silicon wafer having the Si SiO2 interface at a lower point than the rest of the silicon surface.This technology was …
83integrated circuit — Electronics. a circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function. Abbr.: IC Also called microcircuit. [1955 60] * * * ▪… …
84Supercritical fluid — A supercritical fluid is any substance at a temperature and pressure above its thermodynamic critical point. It can diffuse through solids like a gas, and dissolve materials like a liquid. Additionally, close to the critical point, small changes… …
85Protein Function in Cell Membranes — “Function of proteins in the cell membrane”Since 1972 the ‘Fluid Mosaic Model’ has been used to describe the structure of the cell membrane. This model consists of a phospholipids bi layer and a variety of proteins spread throughout the membrane… …
86Printed circuit board — Part of a 1983 Sinclair ZX Spectrum computer board; a populated PCB, showing the conductive traces, vias (the through hole paths to the other surface), and some mounted electrical components A printed circuit board, or PCB, is used to… …
87Beetle — Beetles redirects here. For the band, see The Beatles. For the car, see Volkswagen Beetle. This article is about the insect. For other uses, see Beetle (disambiguation). Beetle Temporal range: 318–0 Ma …
88Vitamin B6 — is a water soluble vitamin. Pyridoxal phosphate (PLP) is the active form and is a cofactor in many reactions of amino acid metabolism, including transamination, deamination, and decarboxylation. PLP also is necessary for the enzymatic reaction… …
89Integrated circuit design — Layout view of a simple CMOS Operational Amplifier ( inputs are to the left and the compensation capacitor is to the right ). The metal layers are colored blue and green, the polysilicon is red and vias are crosses. Integrated circuit design, or… …
90Carrier protein — Carrier proteins are proteins that transport a specific substance or group of substances through intracellular compartments or in extracellular fluids (e.g. in the blood) or else across the cell membrane. Some of the carriers are water soluble… …
