Patent ID: 11955368
Assignee: IMEC VZW
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H | IPC H

Claim 16:
17. A method of producing a reconditioning wafer in accordance with claim 1, the method comprising:
providing a first substrate having a planar upper surface;
depositing a layer of the indentation material on the planar upper surface;
bonding the layer of indentation material or one or more further layers deposited on top of the layer of indentation material to the carrier substrate;
removing the first substrate, to obtain the carrier substrate with the layer of indentation material bonded thereto;
producing a mask layer on the layer of indentation material;
patterning the mask layer to form a regular array of islands of masking material; and
subjecting the layer of indentation material to a dry etch process to thereby create cone-shaped or pillar-shaped protrusions formed of the indentation material at the locations of the islands.