tmah 中文意思是什麼
tmah
解釋
四甲基氫氧化銨-
Process parameters related to the film quality are discussed ; relations are found between the etching rate and different process parameters when sio2 and cr thin films are etched in an inductively coupled plaslma ( icp ) etching equipment ; the tmah eroding solution ’ s ph value under different temperatures and concentrations are studied, since the etching process can be controlled by the ph value
3 .初步研究了利用pecvd淀積si3n4薄膜的工藝，討論了影響薄膜質量的相關工藝參數;初步研究了用icp刻蝕sio2和cr的相關工藝;通過分析不同濃度tmah腐蝕液在不同溫度下其ph值的變化，研究了以溶液ph值作為腐蝕溶液的控制參數。 -
4. py - gc - ms and tmah / py - gc - ms analysis of various som fractions - hkb, kb, ha, and bc show som is heterogeneous
4 .採用py一gc一ms技術對土壤和沉積物有機質組分?腐殖酸、乾酪根和碳黑進行了研究。
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