semiconductor fabrication and lithography
超高纯氢提纯
Ultra-High-Purity Hydrogen PurificationA process for removing trace impurities from hydrogen feedstocks using getter and cryogenic purification methods to meet semiconductor manufacturing requirements. / 一种利用吸气剂和低温净化方法去除氢原料中痕量杂质的工艺，以满足半导体制造要求。
- Knowledge type
- 工艺技术
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-11-05 16:05:32
Sub-knowledge points
Comparison of gaseous and liquefied hydrogen feedstocksAnalysis of argon, nitrogen, carbon monoxide, carbon dioxide, methane, and non-methane hydrocarbonsProcess-resolved interpretation framework linking feed measurements to final signals
Higher-order knowledge points
Semiconductor manufacturing process reproducibilityEquipment reliability and contamination control
Main parameters and performance indicators
Getter purification: Removal of impurities via chemical adsorptionCryogenic purification: Separation via low-temperature condensationMulti-channel gas chromatography: Analytical method for impurity detectionPlasma emission detection: Sensing technique for trace impurities
Open problems
Verification of interpretation criteria derived from gaseous hydrogen for liquefied hydrogen systemsAccounting for vaporization history and purification pathway differences
Related literature
ranked by community starsTrace‐Impurity Behavior of Semiconductor Ultra‐High‐Purity Hydrogen: Comparison of Gaseous and Liquefied Hydrogen Feedstocks After Getter and Cryogenic Purification Using Multi‐Channel Gas Chromatography With Plasma Emission DetectionOpen source
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