A memory device wherein a diode is serially connected to a programmable resistor and is in electrical communication with a buried digit line. An electrically conductive plug is electrically interposed between the digit line and a strapping layer, thereby creating a double metal scheme wherein the strapping...http://www.google.com.au/patents/US6670713?utm_source=gb-gplus-sharePatent US6670713 - Method for forming conductors in semiconductor devices
