技術演化是複雜的，技術分析和監控的能力不但能獲得競爭優勢並且能預測未來的技術，有效地識別利基技術的能力是公司的關鍵資產。利用專利資料可以是研究創新發展和技術變革，透過專利引用網絡的主路徑分析可以探索主要的技術路徑。本研究修正主路徑分析中專利家族所造成的路徑偏差，探討不同參數所得出的技術路徑之管理意涵。比較專利家族在太陽能薄膜專利引用網絡中對主路徑分析所得的技術軌跡之影響與變化。結果顯示，透過路徑的修正，可提升技術軌跡路徑之準確率，透過不同參數搜尋關鍵路徑可觀察路徑中之技術創新特質及現象。

Technology evolution is complicated. With technology analysis and monitoring, companies can not only gain advantages in competition also predict the technology development. Capability of identifying the niche technology is the key asset of a company. Patent information can explore innovative development and technology change. Main path analysis for patent citation network can identify the major technology path. This research modifies the bias caused by patent family as moderator to explore the technology paths of thin film solar cells with different parameters. Results show that accuracy of predicting the technology trajectory increases through modifying path. Key-route search with different parameters can observe the characteristic of technological innovation.