Patent ID: 6358789
Filing Date: 2002-03-19
Classification: H01L

Abstract:
A method for manufacturing a semiconductor device, the method comprising the steps of:a) preparing an active matrix provided with a transistor and an insulating layer formed around the transistor; b) forming a capacitor structure on top of the insulating layer, wherein the capacitor structure includes a capacitor thin film made of a material having a high dielectric constant; c) forming an intermediate dielectric (IMD) layer on top of the capacitor structure; d) forming a Ti1-xAlxN layer on the IMD layer; and e) carrying out a heat treatment in the presence of a gas containing oxygen, thereby converting the Ti1-xAlxN layer into a TiO2 layer and an Al2O3 layer formed on the TiO2 layer for preventing the capacitor structure from hydrogen damages.