擇優腐蝕 的英文怎麼說
中文拼音 [zháiyōufǔshí]
擇優腐蝕
英文
preferential etching-
In this paper, the flow pattern defects ( fpds ) were revealed by secco etchant and their shape, distribution on wafer and tip structure were studied in details by optical microscope and atomic force microscope ( afm ). the relationship between etching time and the tip structure of fpds was also discussed. furthermore, by studying the effect of rapid thermal annealing ( rta ) on the density of fpds in ar, the annihilation mechanism of fpds was discussed in this paper
本文將cz硅單晶片在secco腐蝕液中擇優腐蝕后，用光學顯微鏡和原子力顯微鏡對流動圖形缺陷（ flowpatterndefects ， fpds ）在矽片中的形態、分佈及其端部的微觀結構進行了仔細地觀察和研究，並討論了腐蝕時間對fpds缺陷端部結構的影響；本文還通過研究ar氣氛下快速退火（ rapidthermalannealing ， rta ）對fpds缺陷密度的影響，初步探討了fpds的消除機理。1 ) the synthesis and structural characterization of 5, 10, 15 - tris ( penta - fluorophenyl ) corrole and its corresponding [ 5, 10, 15 - tris ( pentafluorophenyl ) corrolato ] manganese ( iii ) ; 2 ) the synthesis and structural characterization of series of porphyrin and metalloporphyrins as follows : chloro [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] manganese ( iii ), chloro [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] iron ( iii ), [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] copper ( ) and - oxo - bis [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinatomanganese ( iii ) ]. 2. in the third charpter, a highly selected silver electrode based on 5, 10, 15 - tris ( pentafluorophenyl ) corrole has been prepared, and its response was compared with that of metallo corrole counterpart and 5, 10, 15, 20 - tetra ( phenyl ) porphyrin
3 、制備了以-氧-雙（ 5 ， 10 ， 15 ， 20 -四（對甲基苯基） ）錳卟啉載體的鉬酸根選擇性電極，並與5 ， 10 ， 15 ， 20 -四（對甲基苯基）鐵卟啉、 5 ， 10 ， 15 ， 20 -四（對甲基苯基）錳卟啉、 5 ， 10 ， 15 ， 20 -四（對甲基苯基）銅卟啉電極的響應性能進行了比較，對電極的膜組份進行了優化，並分別考查了電極的選擇性、 ph值影響、穩定性和壽命等，並將該電極應用於腐蝕抑制劑中鉬酸根的測定。This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and
本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。Studied the liquid - phase synthesis of butyl acetate from n - butyl alcohol and acetic acid using the supported heteropoly blue as catalyst. examed several factors imposing on esterification. the results revealed : using this catalyst, the reactions conversion percentage reaches nearly 100 %, product yield is 98. 9 %, selectivity is 98. 9 %. reusing it 10 times, the efficiency is still well. in addition, using this catalyst, the reactions temperature is mild, the reaction time is short and the equipment hasnt any erosion. furthermore, there is no “ threewastesdischarge
對以負載型雜多藍為催化劑的乙酸與正丁醇的液相酯化反應進行了研究.考察了影響酯化反應的因素.結果表明：以負載型雜多藍為催化劑，酯化反應轉化率接近100 % ，收率可達98 . 9 % ，選擇性為98 . 9 % ，重復使用10次催化效果仍好.該催化劑還有反應條件溫和、反應時間短、對設備無腐蝕、無三廢排放等優點Test method for crystallographic perfection of silicon by preferential etch techniques
硅晶體完整性化學擇優腐蝕檢驗方法分享友人