sputtering

Japanese: sputtering
sputtering

...(3) Vapor deposition: In a high vacuum, the metal material is heated and evaporated by electron beam irradiation, and then attached to the wafer surface to form a metal film. (4) Sputtering: When a discharge is generated in low-pressure argon gas, neutral argon atoms are dissociated into positively charged argon ions and electrons. The ions are accelerated by the electric field and collide with the cathode, knocking atoms out of the cathode with their kinetic energy. ...

From [Thin Film]

...A device that forms a single crystal thin film by cooling the area around the evaporation source to prevent the formation of an atmosphere by the evaporated material, and by making it easy to control the evaporation by a shutter, making it possible to control the thickness of the thin film to the order of 10-1 nm, is called a molecular beam epitaxy device. Instead of heating and evaporating the thin film material, the method of irradiating the thin film material with high-speed ions generated by an ion gun or glow discharge, etc., and evaporating it by ion collisions is called sputtering, and the part equivalent to the evaporation source in this case is called the target. In a direct current two-pole glow discharge in an inert gas (mainly Ar) of about 10-1 to 10-1 Pa, the material of the cathode is attached to the surrounding walls by sputtering, and a thin film is formed on a substrate appropriately placed around the cathode. ...

*Some terminology explanations that mention "sputtering" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…(3)蒸着 高真空中で,材料となる金属を電子線照射によって加熱し蒸発させ,ウェーハー表面に付着させて金属膜を形成する。(4)スパッタリングsputtering 低圧のアルゴンガス中で放電を起こさせると,中性アルゴン原子は正電荷をもつアルゴンイオンと電子に解離する。イオンは電界によって加速されて陰極に衝突し,その運動エネルギーで陰極から原子をたたき出す。…

【薄膜】より

…蒸発源の周辺を冷却して蒸発した物質による雰囲気の形成を妨げ,シャッターによる蒸発の制御を容易にして薄膜の厚さを10-1nmの桁で制御できるようにしたうえで単結晶薄膜を形成する装置をとくに分子線エピタキシー装置という。 薄膜材料を加熱,蒸発させるかわりに,イオン銃やグロー放電などで発生させた高速イオンを薄膜材料に照射し,イオン衝突で蒸発させる方法をスパッタリングsputteringといい,この場合の蒸発源に相当する部分をターゲットと呼ぶ。101~10-1Pa程度の不活性ガス(おもにAr)中での直流2極グロー放電で,陰極の物質はスパッタリングにより周辺の壁に付着するので,陰極周辺に適当におかれた基板上には薄膜が形成される。…

※「sputtering」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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