Method of performing an operation with rheological compound

A method of performing an operation on a substrate, the method comprising:

• selectively positioning a first lens coaxially with an optical path of an imaging block to focus a camera disposed in the imaging block on a structure formed on the substrate to enable capturing of an image of the structure to review the structure;
• delivering a laser beam along the optical path to the structure;
• selectively positioning the first lens coaxially with the optical path if the reviewed structure is identified as requiring material removal;
• focusing the laser beam on the structure using the first lens so as to remove a material present in the structure;
• positioning a ribbon coated with a rheological compound in the path of the laser beam;
• selectively positioning a second lens coaxially with the optical path if the reviewed structure is identified as requiring material transfer;
• focusing the laser beam on the ribbon using the second lens so as to transfer the rheological compound to the structure;
• maintaining a distance between the substrate and the first lens within the predefined range during the material removal;
• and
• maintaining a distance between the ribbon and the second lens within the predefined range during the transfer of the rheological compound.