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The manufacturing of thick film devices/modules is an additive process involving deposition of several (typically max 6–8) successive layers of conductive, resistive and dielectric layers onto an electrically insulating substrate using a screen-printing process. [3] Thick Film Resistor Networks
A thin film is a layer of materials ranging from fractions of a nanometer to several micrometers in thickness. [1] The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications.
Chemiresistors can be made by coating an interdigitated electrode with a thin film or by using a thin film or other sensing material to bridge the single gap between two electrodes. Electrodes are typically made of conductive metals such as gold and chromium which make good ohmic contact with thin films. [ 7 ]
thin-film deposition – a technique for depositing a thin film of material onto a substrate or onto previously deposited layers; in IC manufacturing, the layers are insulators, semiconductors, and conductors; through-silicon via (TSV) – a vertical electrical connection that pierces the (usually silicon) substrate
Laser trimming is the manufacturing process of using a laser to adjust the operating parameters of an electronic circuit. Laser-trimmed precision thin-film resistor network from Fluke, used in the Keithley DMM7510 multimeter. Ceramic backed with glass hermetic seal cover. Laser trim marks are visible in the grey resistive material.
Layer-by-layer (LbL) deposition is a thin film fabrication technique. The films are formed by depositing alternating layers of complementary materials with wash steps in between. This can be accomplished by using various techniques such as immersion, spin, spray, electromagnetism, or fluidics. [1]
Resistor based on the sheet resistance of carbon film Sheet resistance is the resistance of a square piece of a thin material with contacts made to two opposite sides of the square. [ 1 ] It is usually a measurement of electrical resistance of thin films that are uniform in thickness.
Molecular-beam epitaxy (MBE) is an epitaxy method for thin-film deposition of single crystals. MBE is widely used in the manufacture of semiconductor devices , including transistors . [ 1 ] MBE is used to make diodes and MOSFETs (MOS field-effect transistors ) at microwave frequencies, and to manufacture the lasers used to read optical discs ...