IC芯片表面標識自動識別虛擬儀器系統的設計(New!)
注:NI 2004全國有獎征文大賽獲獎文章
作者:楊 彪
工作職務:研究
單位名稱:華中科技大學電子科學與技術系
應用領域:
半導體、工業自動化
使用產品:
LabVIEW 7.0、IMAQ Vision、IMAQ Vision Assistant、PXI-1409、MBC-5051等
挑戰:
構建IC芯片表面標識自動識別系統,實現對芯片表面英文字母、數字以及廠商圖標的識別
應用方案:
使用NI公司LabVIEW、IMAQ Vision、IMAQ Vision Assistant等軟件配合PXI-1409圖像采集、MBC-5051 CCD黑白相機等圖像采集硬件構建IC芯片表面標識自動識別系統,實現對英文字母、數字以及廠商圖標的識別
介紹:
芯片表面標記自動識別技術是芯片制造技術不斷高速發展的要求,其中芯片表面標識主要包括廠商圖標、序列號(包括英文字母及數字)等。由于自動識別技術具有極其重要的意義,一直以來,人們都對該技術的研究投入了大量的人力物力,并取得了卓有成效的進展。它可以應用于芯片性能自動檢測領域,提高芯片測試效率,進而提高廠商的生產能力,具有十分廣闊的應用前景。
本系統使用NI的視覺系統開發工具構建,因而具有開發周期短、成本低等特點。系統綜合運用了銳化、濾波、細化、特征識別等多種圖像處理技術,成功地實現了從芯片自動跟蹤定位、圖像采集到圖像預處理、骨架提取以及識別等一系列功能。
Abstract
With the incessant development of the chip manufacturing technology, developing the auto-recognizing system of the chip surface’s mark which mainly contains licenses and so on becomes more and more important. As this technique is of great importance, a lot of energy has been put into it and many achievements have been gained. This system can be used in the filed of the automation of the chip testing, so it can increase the throughput of the chip manufacturer.
Thanks to the using of the LabVIEW software and its IMAQ Vision image processing modules, the system’s exploit period is very short and its cost is especially cheap. With the comprehensive utilization of several kinds of technology, such as the threshold, filtering, arithmetic/logical operation, cutting, thinning, feature matching and so on, this system can bring all the expected functions to success in practical application.
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