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Conformal coating gives most of the benefits of potting, and is lighter and easier to inspect, test, and repair. Conformal coatings can be applied as liquid or condensed from a vapor phase. When potting a circuit board that uses surface-mount technology , low glass transition temperature (T g ) potting compounds such as polyurethane or silicone ...
Also used for LEDs. In LEDs, transparent epoxy or a silicon caulk-like material that may contain a phosphor is poured into a mold containing the LED(s) and cured. The mold forms part of the package. COF: Chip-on-flex: Variation of COB, where a chip is mounted directly to a flex circuit.
In 1969, Hewlett-Packard introduced the HP Model 5082-7000 Numeric Indicator, an early LED display and the first LED device to use integrated circuit technology. Its development was led by Howard C. Borden and Gerald P. Pighini at HP Associates and HP Labs , who had engaged in research and development (R&D) on practical LEDs between 1962 and ...
An LED strip, tape, or ribbon light is a flexible circuit board populated by surface-mount light-emitting diodes (SMD LEDs) and other components that usually comes with an adhesive backing. Traditionally, strip lights had been used solely in accent lighting, backlighting, task lighting, and decorative lighting applications, such as cove lighting .
The PCB of a quartz watch. The clock IC is under the drop of black epoxy. Chip on board (COB) is a method of circuit board manufacturing in which integrated circuits (e.g. microprocessors) are attached (wired, bonded directly) to a printed circuit board, and covered by a blob of epoxy. [1]
The board and a POV kit were included in Vol. 27 of the eponymous series. It is unique in having a regular size USB A connector. 1000Pads Luigino [102] Minimalistic version of Arduino: small, without serial converter. Available as a kit, board only or assembled. Smaller than Arduino, with different footprint. Luigino328 [103] ATmega328