摘要:
A method of manufacturing non-volatile memory devices, comprises the following steps:
depositing a first layer (3) onto a semiconductor substrate; defining and selectively removing said first layer (4) to form a portion (5) of said first layer (4); depositing a second layer (7) to a first thickness over the entire memory device; forming a screening layer (8) on the second layer (7) to leave uncovered at least a portion (10) of the second layer (7) aligned to the portion (5) of the first layer (3); and partly removing the portion (10) of the second layer (7) such that the thickness of the portion (10) of the second layer (7) is made smaller than the first thickness.