Patent ID: 11959736
Assignee: UNITY SEMICONDUCTOR
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 14:
15. The system according to claim 14, characterized in that, the synchronization unit comprises at least one of the following:
a shutter located between the interferometer and the common portion, and moveable between a first position blocking the passage of the measurement beam and a second position authorizing the passage of said measurement beam;
a mirror located between the interferometer and the common portion, and moveable between a first position deflecting the passage of the measurement beam away from the structure and a second position deflecting said measurement beam towards said structure;
an optical filter located between the interferometer and the common portion, and moveable between a first position filtering the measurement beam and a second position letting the measurement beam pass;
an attenuating device located between the interferometer and the common light path portion, the attenuation value of which is controllable;
a controller switching on and off an interferometer light source; and/or
a controller controlling the imaging device and/or the light source so as to trigger acquisition of at least one image by the imaging device with respect to the pulses of a pulsed light source of the interferometer such that image acquisition is carried out between the pulses of said source.