在眾多非傳統加工中，電化學加工(Electrohemical Machining,
ECM)擁有加工速度快、無表面應力集中以及表面粗糙度佳的優勢，具有相當的發展潛力和高附加價值。
　　本實驗採用直徑50μm以及100μm之碳化鎢棒作為陰極刀具，並以P型單晶之矽基板作為陽極工件做電化學加工，電解液部分嘗試了四種不同之電解液，分別為氟化銨、氫氟酸、氟化銨添加鹽酸、氟化銨添加硫酸四種，並探討其不同電解液下對加工孔徑與深度的影響，再搭配其餘加工參數，找出相對較佳之孔徑。
　　實驗結果顯示，氟化銨與氟化銨添加鹽酸兩種電解液下加工矽基板，其加工情形不佳，而在氟化銨添加硫酸作為電解液加工出來孔徑則比傳統使用氫氟酸作為電解液表現較好。最後以最佳參數進行加工，可得到孔徑為108.7μm。

In numerous non-traditional machinings, the electrochemical machining (ECM) has the advantage of quick processing speed, good convergence in surface stress, and nice smoothness on the workpiece surface with enormous potentialities and highly added value.
　　Single-crystal p-Si is machined by ECM. Tungsten carbide cylinders with diameter of 50 and 100 micro-meter are selected as the electrode tools. In this research, four kinds of solution, namely ammonium fluoride, hydrofluoric acid, ammonium fluoride added with hydrogen chloride and ammonium fluoride added with sulfuric acid are used as electrolytes. The effects of machining diameter and depth by different electrolytes, and other machining parameters are investigated to identify a relatively better diameter.
　　From experimental results, it shows that the machining performance is poor when machined with ammonium fluoride and ammonium fluoride added with hydrogen chloride on p-type silicon plates. And the machining diameter in ammonium fluoride added with sulfuric acid is better then that in hydrofluoric acid. Finally, under the best parameter of machining, the diameter reaches only 108.7μm.

摘要 I
Abstract II
致謝 III
目錄 IV
表目錄 VIII
圖目錄 IX
符號說明 XI
第一章 緒論 1
1-1前言 1
1-2 非傳統加工簡介 2
1-2-1 放電加工(Electro Discharge Machining, EDM) 3
1-2-2 電子束加工(Electron beam machining, EBM)[6] 4
1-2-3 雷射束加工(Laser beam machining, LBM)[6] 4
1-2-4 超音波加工(Ultrasonic machining, USM)[6] 5
1-3 矽加工簡介 6
1-4 文獻回顧 8
1-4-1 電化學加工 8
1-4-2 微電化學加工 10
1-4-3 電化學矽加工 11
1-5 研究動機 12
第二章 理論基礎 14
2-1 電化學加工之基本理論 14
2-1-1 電流效率(Current Efficiency) 15
2-1-2 液相質傳動力學 15
2-1-3 電雙層理論 17
2-2 電化學反應式[20] 18
2-3 導電度、導電度與濃度的關係、電流密度 20
2-3-1 導電度(Conductivity) 20
2-3-2 導電度與濃度的關係 22
2-3-3 電流密度 23
第三章 實驗設備方法與步驟 24
3-1 實驗設備 24
3-1-1 機台結構設計 24
3-1-2 刀具進給控制系統 25
3-1-3 脈衝電源供應系統 25
3-1-4 數位三用電錶 26
3-1-5 金相顯微鏡 26
3-1-6 排煙櫃 26
3-2 實驗材料 27
3-2-1 陰極刀具 27
3-2-2 陽極工件 27
3-2-3 陽極導引片 28
3-2-4 電解液 28
3-2-5 電解槽 28
3-3 實驗步驟與注意事項 29
第四章 結果與討論 31
4-1 使用氟化銨電解液下之加工情形 32
4-1-1 加工電壓之影響性 32
4-1-2 刀具轉速之影響性 33
4-1-3 刀具進給速度之影響性 34
4-1-4 加工頻率之影響性 35
4-1-5 電解液濃度之影響性 35
4-2 使用其他不同電解液之加工結果 37
4-2-1 使用氫氟酸電解液 37
4-2-2 使用氟化銨添加鹽酸電解液 38
4-2-3 使用氟化銨添加硫酸電解液 39
4-3 不同電解液時加工結果之比較 40
4-3-1 固定導電度時加工結果之比較 41
4-3-2 相同化學式比例時，加工結果之比較 42
第五章 結論與未來展望 44
5-1 結論 44
5-2 未來展望 45
參考文獻 46

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