CST – Computer Simulation Technology

Full Wave Characterization of a Small Quad Flat Package for High-Speed Serial Interface Application

The target of this study was to understand the impact of low cost digital (=non-RF) packages on high-speed interface drivers and receivers. The studied low cost package was a 64-pin SQFP with dimensions 10x10 mm2, and with body thickness of 1 mm. The 1.4x1.4 mm2 IC with an active area of 0.01 mm2 was mounted on silicon substrate. The bond wires were of gold, with wire diameter 20 µm with bond pad pitch of 70 µm. The considered package contains the physical layer of a serial high-speed chip-to-chip interface circuit, operating with data rates up to 1 Gbit/s.

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