Patent ID: 11960202
Assignee: EUV TECH, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An EUV microscope device for analyzing mask defects, comprising:
a source of a beam of EUV light;
a collector for said beam of EUV light, said collector providing a first focused EUV beam;
a monochromator, said monochromator receiving said first focused EUV beam to produce a second EUV beam of a certain focus and linear dispersion;
an illumination module, said illumination module receiving said second EUV beam from said monochromator and producing a reimaged EUV beam, said reimaged EUV beam being directed to the mask for reflection therefrom;
a zone plate, said zone plate including a central obscuration, said zone plate receiving said EUV beam reflected from the mask and passing a certain order of said reflected EUV beam; and
a detector for receiving said certain order of reflected EUV beam and producing an image thereof.