关键词: GDSII, 图片, 生成, 校正

Abstract:

As the steps for the design and manufacture of the die increase, it is more and more possible to have hardware Trojans implanted in the chip. So it is necessary to detect the hardware Trojans for the die, especially with high security requirements. Reversely anatomizing the die and comparing it with the original GDSII file on the consistency is one of the main methods to test whether the die has been implanted hardware Trojans or not. It is an important step to generate the pictures from the GDSII file and make the pictures correspond to the photos which are got by reversely anatomizing the die. Therefore, we propose a twopoint position algorithm for the segmentation of GDSII pictures. Meanwhile, for the position offset of the picture information generated in the process of taking photos of die and splicing, we propose a correction algorithm based on deviation statistics. Engineer practical application proves that the algorithm revises the deviation between the pictures generated from GDSII file and the photos of the die well. And it eliminates the impact from the position offset of the picture information.

Key words: GDSII;pictures;generation;revise