Patent ID: 8522171

Claim:
A method for checking a die seal ring on a layout, comprising executing, by a computer, steps of: receiving a digital database of a layout corresponding to at least a device with a text information corresponding to the layout and receiving a tape-out information corresponding to the layout; after receiving the tape-out information corresponding to the layout, performing a checking process according to the digital database of the layout and the tape-out information while performing a mask design procedure for designing a mask pattern corresponding to the layout by using the digital database of the layout, the text information and the tape-out information; and recording a result of the checking process in an inspection table corresponding to the layout, wherein the result of the checking process includes a double-die-seal-ring check result, a missing-die-seal-ring check result or an OK die-seal-ring check result; after the step of performing the checking process, further comprising: when the result of the checking process is the double-die-seal-ring check result or the missing-die-seal-ring check result, issuing an alarm indicating the result of the checking process to an individual responsible for the tape-out information.