THE CAPACITORLESS DRAM AND METHOD FOR FABRICATING THEREOF

摘要

PURPOSE: A capacitor-less DRAM and a method for manufacturing the same are provided to improve the hole-storage capacity due to a hole-barrier by forming a continuous germanium layers or a non-continuous dots through an ion implantation method and a heat treatment process. CONSTITUTION: A source(105), a channel, and a drain(106) are successively formed on a substrate(100). A gate insulating layer(103) is formed on the channel. A gate is formed on the gate insulating layer. A germanium layer or a germanium dot is formed in the channel. The gate insulating layer is made of a silicon oxide, a nitride film, an aluminum oxide, a hafnium oxide, or a zinc oxide.