久久精品官方网视频|日韩放荡少妇无码视频|久久久久久亚洲精品影院|国产精品无码Av蜜臀浪潮|国产中文字幕在线观看视频|一区二区三区四区五区无码|无码国产偷倩在线播放老年人|久久精品一品二品三品无码免费

Shenzhen three and wave of Electrical and Mechanical Technology Co., Ltd

400 0061 1152CN
Industry News

Plasma cleaning machine glow discharge principle

Author： Shenzhen three and wave of Electrical and Mechanical Technology Co., LtdIssuing Time：2017-08-03 08:59:39Pageviews：4356【smallmediumbig】

Plasma cleaning / etching machine to produce plasma device is set in the sealed container two electrodes to form an electric field, with a vacuum pump to achieve a certain degree of vacuum, with the gas more and more thin, molecular spacing and molecular or ion free movement distance Are increasingly long and subjected...
Text label：
Plasma cleaning / etching machine to produce plasma device is set in the sealed container two electrodes to form an electric field, with a vacuum pump to achieve a certain degree of vacuum, with the gas more and more thin, molecular spacing and molecular or ion free movement distance Are increasingly long and subjected to electric fields that collide with each other to form plasmas that are highly active and have enough energy to destroy almost all chemical bonds that cause chemical reactions on any exposed surface, and that different gases have different Chemical properties, such as oxygen plasma has a high degree of oxidation, can oxidize the photoresist reaction to generate gas, so as to achieve the effect of cleaning; corrosive gas plasma has a good anisotropy, so that can meet the etching The need. The use of plasma treatment will be issued glow, so called glow discharge treatment.

Glow discharge, the discharge of the two poles under the action of the electric field, electrons and positive ions were to the anode, the cathode movement, and accumulation in the vicinity of the two poles to form a space charge area. Since the drift velocity of the positive ions is much smaller than that of electrons, the charge density of the positive ion space charge region is much larger than that of the electron space charge region, so that the voltage between the entire electrode is almost entirely concentrated in the narrow region near the cathode. This is a significant feature of glow discharge, and in normal glow discharge, the voltage between the two poles does not vary with current.
2017-08-03 4356People browse

Recommended Products

Latest News

Contact Us

Shenzhen three and wave of Electrical and Mechanical Technology Co., Ltd
Contact：Mr. Xie
Mobile：136 0019 4271
Tel：0755 814 78611
Fax：0755-28176322
Address：Shenzhen Longhua New District Shixiang Industrial Zone Hongde Industrial Building C, 3rd Floor, 308

蒙城县| 广水市| 平利县| 偃师市| 柘荣县| 澄城县| 育儿| 边坝县| 秦安县| 沈阳市| 抚松县| 当雄县| 南平市| 开封市| 论坛| 竹山县| 黎平县| 麻栗坡县| 利川市| 南安市| 杭锦后旗| 苍山县| 海门市| 南雄市| 云霄县| 宝鸡市| 连城县| 永寿县| 泰和县| 桑日县| 彰化市| 裕民县| 凌源市| 金平| 嘉黎县| 卫辉市| 顺昌县| 龙山县| 西林县| 三原县| 威远县|