Thermal placement optimization of multichip modules using a sequential metamodeling-based optimization approach

被引:24
作者
Cheng, Hsien-Chie [1 ]
Tsai, Yang-Howa [1 ]
Chen, Kun-Nan [2 ]
Fang, Jiunn [1 ]
机构
[1] Feng Chia Univ, Dept Aerosp & Syst Engn, Taichung 40724, Taiwan
[2] Tungnan Univ, Dept Mech Engn, Taipei, Taiwan
关键词
Multichip module; Thermal placement optimization; Response surface methodology; Halton sequence; Face-centered central composite design; Finite element analysis; DESIGN; SIMULATION; CHANNEL; HEAT;
D O I
10.1016/j.applthermaleng.2010.07.004
中图分类号
O414.1 [热力学];
学科分类号
摘要
The study attempts to seek the optimal thermal design of planar multichip module (MCMs) under natural convection through optimal chip placement design. To attain the goal, a sequential metamodeling-based optimization approach is introduced. This approach incorporates a response surface methodology (RSM)-based design of experiment (DOE), three-dimensional (3D) thermal finite element analysis (FEA) and an updating scheme. Essentially, the RSM is used to construct, via quadratic polynomial approximation, the global RS of the chip junction temperature in terms of design variables. For speeding up the DOE and the solution of the optimization, several dynamic experimental design strategies using move limits and different proposed sampling techniques are introduced. The feasibility of the strategies is demonstrated, and their solution accuracy and efficiency are also compared with each other. By the explicit RS-based performance function together with geometry constraints, a constrained thermal optimization subproblem is formed. The optimum of the subspace optimization is sought, which is considered as the nominal starting point of next iteration. The iterative process continues with a new defined design subspace and factorial design plan until convergence is attained. The applicability of the proposed design optimization technique is demonstrated through several design case studies involving various planar MCMs. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2632 / 2642
页数:11
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