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  • 學位論文

Floorplanning for Die-Stacking System-in-Package Designs under Temperature and Fixed-Outline Constraints

在系統封裝設計下具溫度及固定邊框限制之三維佈局規劃

指導教授 : 王廷基
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摘要


在這篇論文中,我們探討晶片堆疊的系統封裝設計的佈局規劃問 題,在此設計中金屬線結合的方法被用來連接不同晶片間的訊號。我 們提出一個方法,此方法從下而上對每個晶片依序產生一個佈局規劃 的結果使得此佈局規劃的結果有最小的繞線長度且滿足給定的溫度 以及固定邊框的限制。對每個晶片而言,為了找出如此的佈局規劃結 果,我們修改一個已存在的固定邊框佈局規劃器藉由加入幾個考慮溫 度的方案,此佈局規劃器是以模擬退火法為基底。實驗的數據被提供 來展現我們方法的效率以及效果。就我們所知,我們的作品是第一個 有潛力的佈局規劃方法針對晶片堆疊的系統封裝設計。

並列摘要


In this thesis, we study a floorplanning problem for die-stacking System-in-Package (SiP) designs in which the wire bonding method is used to connect signals between different dies. We present an approach which sequentially determines a floorplan for each die from bottom to top such that the generated floorplan has minimal on-chip wirelength and satisfies given temperature and fixed-outline constraints. To find such a floorplan for each die, we modify an existing simulated annealing based fixed-outline floorplanner by adding several temperature-aware schemes. The experimental results are provided to show the efficiency and effectiveness of our approach. To our best knowledge, our work is the first one to give a promising floorplanning approach to die-stacking SiP designs.

參考文獻


floorplanning: enabling hierarchical design.
IEEE Transactions on Very Large Scale Integration Systems, 11(6):1120{1135, Dec
floorplanning through better local search.
In Proceedings of International Conference on Computer-Aided Design, pages 328{
333, 2001.

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