A self-aligned vertical intrinsic resistance for use in semiconductor devices is developed. The self-aligned vertical intrinsic resistance may be used in a variety of designs, such as functioning as a pullup device in integrated circuits and more specifically for use as a pullup resistor in SRAM devices....http://www.google.com.au/patents/US5177030?utm_source=gb-gplus-sharePatent US5177030 - Method of making self-aligned vertical intrinsic resistance
