A thermal van der Pauw test structure
A thermal van der Pauw test structure
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热范德堡测试结构
DOI:
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发表时间:
1999
期刊:
影响因子:
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通讯作者:
H. Baltes
中科院分区:
文献类型:
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作者:
O. Paul;L. Plattner;H. Baltes
A micromachined thermal van der Pauw test structure is reported. Similar in principle to the conventional electrical van der Pauw Greek cross test structures, it enables the in-plane thermal sheet conductivities of thin films to be determined. The analogy between the two-dimensional heat flow in thin film samples and the electrical current pattern in thin film conductors is exploited. A thermal sheet resistance of 1.87/spl times/10/sup 5/ K/W was extracted from the complete sandwich of dielectric layers of a commercial CMOS ASIC process. This is equivalent to an average in-plane thermal conductivity of the CMOS dielectric layer sandwich of /spl kappa/=1.44 Wm/sup -1/ K/sup -1/.