A method of writing data to a semiconductor memory device with memory cells, each of which stores data defined by threshold voltage thereof in a non-volatile manner, the device having first and second memory cells disposed adjacent to each other to be sequentially written in this order, the method including:...http://www.google.de/patents/US20070280000?utm_source=gb-gplus-sharePatent US20070280000 - METHOD OF WRITING DATA TO A SEMICONDUCTOR MEMORY DEVICE