Patent ID: 7425761
Filing Date: 2008-09-16
Classification: C23C,H01L

Abstract:
1. A method of manufacturing a dielectric layer for a capacitor, comprising: a. sequentially supplying a first precursor material and a second precursor material to a processing chamber in an initial cycle, wherein the supplying is carried out for a first predetermined amount of time and a second predetermined amount of time, respectively, and wherein the processing chamber is purged after each supplying is terminated; b. sequentially supplying the first precursor material and the second precursor material to the processing chamber and purging it in a post cycle, wherein the post cycle follows the initial cycle, and wherein the supplying is carried out for a third predetermined amount of time; and c. repeating the initial and post cycles to form a first dielectric layer, wherein a number of initial cycles is smaller than a number of post cycles, and wherein a predetermined amount of time of supplying at least one of the first and second precursor materials in the initial cycle is longer than the third predetermined amount of time.