Patent ID: 7849432
Filing Date: 2010-12-07
Classification: H01L

Abstract:
1. A computer-implemented layout method for shallow trench isolation for use in a computer, wherein the computer is programmed to perform the steps of: extracting destined first layout objects by the computer; defining first forbidden areas surrounding the extracted destined layout objects by the computer; forming a first dummy pattern in a first area beyond the destined layout objects and the first forbidden areas by the computer, wherein the first dummy pattern comprises a plurality of first dummy cell patterns, each first dummy cell pattern comprising: defining second forbidden areas comprising the first dummy pattern, the destined layout objects, and the first forbidden areas by the computer; forming a second dummy pattern in a second area beyond the second forbidden areas by the computer; and creating second layout objects by attaching the first dummy pattern and the second dummy pattern to the destined first layout objects by the computer.