A semiconductor device has multiple power-supply through electrodes, grounding through electrodes, and signal-routing through electrodes made through a semiconductor chip. The power-supply through electrodes, the grounding through electrodes, and the signal-routing through electrodes differ mutually...http://www.google.com.au/patents/US20040080040?utm_source=gb-gplus-sharePatent US20040080040 - Semiconductor device and chip-stack semiconductor device
