摘要:
The present invention relates to a method of testing, in the manufacturing process of an LSI (large scale integration) device, a result apparatus therefor, and a cross-sectional microstructure of the LSI device. The method includes thinning a semiconductor chip such that the semiconductor chip includes a substrate crystal and a portion added by the manufacturing process, irradiating an electron beam to the semiconductor chip, detecting an electron beam transmitted through the semiconductor chip to thereby obtain an electron beam diffraction image, removing an electron beam diffracted due to the substrate crystal, and comparing, in the electron beam diffraction image, the thickness of grating stripes obtained from the substrate crystal with the thickness of the portion added by the manufacturing process.
摘要:
The present invention relates to a method of testing, in the manufacturing process of an LSI (large scale integration) device, a result obtained by the manufacturing process, a testing apparatus therefor, and a semiconductor device suitable for the test. The present invention relates, in particular, to a testing method used to immediately and accurately perform a test of the cross-sectional microstructure of an LSI device obtained by the manufacturing process. The above testing method is characterized by including a sample production step of thinning a semiconductor chip such that the semiconductor chip includes a substrate crystal and a portion added by the manufacturing process, a step of irradiating an electron beam to the semiconductor chip, a step of detecting an electron beam transmitted through the semiconductor chip to thereby obtain an electron beam diffraction image, a step of removing an electron beam diffracted due to the substrate crystal, and a step of comparing, in the electron beam diffraction image, the thickness of grating stripes obtained from the substrate crystal with the thickness of the portion added by the manufacturing process.