These libraries are free of charge and can be downloaded from TSMC's library distribution partners, Cadence Design Systems, Synopsys, Inc., Artisan, and Virage Logic. They provide easy, no-hassle integration, maximum cost savings, faster time to market and, ultimately, faster time-to-revenue. TSMC's high-density libraries and unique circuit under pad (CUP) I/Os allow designers to build functionality in the smallest possible chip area