Behaviour of CPW and TFMS lines at high temperature for RF applications in sub-45nm nodes
2010
Coplanar waveguide (CPW) and thin film microstrip (TFMS) lines integrating porous ultra low-k as inter-metal dielectric layers (k=2.5) and copper as metal, are for the first time experimentally measured up to 110GHz and under different temperature conditions, up to 200^oC. The extracted attenuation and propagation coefficients of those transmission lines are compared to simulations performed with MAGWEL software, a frequency domain 3-D Maxwell solver. Based on the characterization results some guidelines related to interconnect design are presented for future applications.
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