A semiconductor processing device isolation method includes: a) providing non-LOCOS insulating device isolation blocks by trench and refill technique on a substrate to define recessed moat volume therebetween; b) providing gate dielectric within the moat volume; c) providing a layer of electrically conductive...http://www.google.es/patents/US5397908?utm_source=gb-gplus-sharePatente US5397908 - Arrays of memory integrated circuitry
