請問半導體中Metal Layer為何晶片刻號無法判讀.

Question

請問半導體中Metal Layer為何晶片刻號無法判讀.有辦法用圖解幫忙說明嗎,感謝.

Answer 1

Favorite Answer

http://www.ee.csu.edu.tw/eegiee/digital/data/20081...

Two Metal Layer Interconnect Structure

http://www.iue.tuwien.ac.at/phd/pyka/node39.html

圖片參考：http://img.cmpnet.com/eet/news/03/june/SS1275_QUIC...

圖片參考：http://img.cmpnet.com/eet/news/03/june/SS1275_QUIC...

http://www.eet.com/

Note that the height of the wire on Metal 5 is less than the wire on Metal 6, but the overall resistance is substantially reduced as a result of strapping the two together. The advantage of strapping is that the effective line pitch remains the same, which minimizes the need to redraw other layers. In fact, in our case, the strapping was performed by an automated layout tool from Rubicad.

Answer 2

金屬 屬於高反射物質 現在讀刻號的技術都是用攝影機

反射光過多 影像的確不清楚

只要調整影像判斷 或者入射光源位置調整

應該都可以判讀

2012-06-15 14:08:22 補充：

那應該不是正確答案.

那應該不是正確答案

Answer 3

安安，拍謝我也不知道唉 幫你推祝您早日找到答案充氣娃娃

圖片參考：http://www.lovelove101.com/data/afficheimg/1337269...

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