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yongbinz金蟲 (著名寫手)
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[求助]
150金幣急求高手幫忙翻譯一段話，漢譯英，謝絕軟件翻譯！
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要獲得高的剝離強(qiáng)度，除了薄膜與銅良好的界面作用外，還需要薄膜具有較高的內(nèi)聚強(qiáng)度。A的低剝離強(qiáng)度產(chǎn)生的原因正是因?yàn)槠漭^低的內(nèi)聚強(qiáng)度。此處“內(nèi)聚強(qiáng)度”與“拉伸強(qiáng)度”兩個(gè)概念并不完全相同。因?yàn)椋∧さ睦鞆?qiáng)度是薄膜沿薄膜平面的破壞強(qiáng)度，而剝離時(shí)的內(nèi)聚強(qiáng)度則主要是垂直于薄膜平面方向的破壞強(qiáng)度。通常的薄膜都存在分子鏈沿薄膜平面的較大程度的取向，因此，兩個(gè)方向的強(qiáng)度不能等同，這也就是說，PI3的拉伸強(qiáng)度大并不表示剝離時(shí)其內(nèi)聚強(qiáng)度就大。而薄膜與銅箔界面附近存在的“弱邊界層”會(huì)加劇薄膜在這一區(qū)域的內(nèi)聚強(qiáng)度與本體拉伸強(qiáng)度的差別。因此，此處只能說明邊界區(qū)域的內(nèi)聚強(qiáng)度小而不能說其拉伸強(qiáng)度小。 [ Last edited by yongbinz on 2011-11-25 at 21:13 ] |
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【答案】應(yīng)助回帖
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愛與雨下(金幣+1): 2011-11-28 12:05:40
愛與雨下(金幣+1): 2011-11-28 12:05:40
| To obtain a high peel strength, in addition to a good interface with the copper film role, but also need to have a higher film cohesive strength. A low peel strength causes precisely because of its low cohesive strength. Here "cohesive strength" and "tensile strength" two concepts are not identical. Because the tensile strength of the film along the film plane of the film breaking strength, and peel strength when the cohesion of the film is mainly in the plane perpendicular to the direction of the breaking strength. Usually the molecular chain of the film there is a greater degree along the film plane orientation, therefore, can not be the same strength in both directions, which means that, PI3 does not mean that the tensile strength of its cohesive strength when peeling big. The copper thin film near the interface with the existence of "weak boundary layer" will film in the region increased cohesive strength and bulk tensile strength difference. Therefore, here only shows that the cohesive strength of the boundary region is small and can not say that the tensile strength of small. |
4樓2011-11-28 11:25:26
terry_well
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愛與雨下(金幣+1): 2011-11-26 08:09:17
yongbinz(金幣+80, 翻譯EPI+1): 2011-11-26 17:05:39
yongbinz(金幣+70): 2011-11-28 19:19:28
愛與雨下(金幣+1): 2011-11-26 08:09:17
yongbinz(金幣+80, 翻譯EPI+1): 2011-11-26 17:05:39
yongbinz(金幣+70): 2011-11-28 19:19:28
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Inorder to obtain high peel strength, not only a better interfacial bond strength between the thin films and the copper but also a higher cohesive strength of such films are neccessary. The cause of the weak peel strength for A should be its lower cohesive strength. The cohesive strength reffered herein is completely different from the tensile strength which is a kind strength that related to the breaking of surface which is parallel to the surface, whereas cohesive strength is mainly based on the vertical breaking strength of the film. Generally speaking, the molecules of the film are to a greater extent orientated along with the surface direction, which suggests that the strength along with these two directions is different. The higher tensile strength of PI3 thereby can not illustrate its higher cohesive strength. However, there is weak interfacial layer between the thin films and the copper which might cause higher difference between values of cohesive strength and tensile strength in such region. In short, it could merely indicate that the cohesive strength of boundary region is weak instead of its tensile strength. 僅供參考，希望對你有所幫助。 |
2樓2011-11-25 22:50:16
★
愛與雨下(金幣+1): 2011-11-26 08:09:25
愛與雨下(金幣+1): 2011-11-26 08:09:25
| To obtain high peel strength, it is necessary to improve both the bonding strength of film/copper at the interface and the cohesive strength of film itself in the boundary layer near the interface. The cause of the weak peel strength for A should be the low cohesive strength of the film. The tensile strength of the film reflected the fracture strength on in-plane direction, wheras the cohesive strength presented the shear strength on out-of-plane direction. Therefore, in this article the tensile strength of the film on in-plane orientation was not identical to the cohesive strength of the film on out-plane orientation. Further, the existence of the “weak boundary layer” near the interface might cause higher difference between the cohesive strength and tensile strength. In short, thei film with the excellent tensile strength may not necessarily have a high peel strength value. |
3樓2011-11-26 00:14:29
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