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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-2026102857-A1, on 16 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000000497

Method of processing a monocrystalline semiconductor work piece

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Classification
Manufacturing & Assembly Equipment › Joining and Welding
Original source
US-2026102857-A1, the United States Patent and Trademark Office, 16 April 2026
Document SHA-256
af2f2c8ea738e51d9686014719d4ab609a386a578c0947db304512901ac3dad6

Abstract

A method of processing a monocrystalline semiconductor work piece includes: applying pulses of laser light to a first main surface of the monocrystalline semiconductor work piece, the pulses of laser light penetrating the first main surface and forming modified regions in a separation zone within the monocrystalline semiconductor work piece, each modified region being delimited by a subcritical crack that surrounds an inner part in which the monocrystallinity of the semiconductor work piece is altered; controlling the pulses of laser light such that the subcritical cracks of adjacent ones of the modified regions are non-overlapping for at least half of the modified regions formed in the monocrystalline semiconductor work piece; and after inducing the subcritical cracks, forming at least one crack that connects the subcritical cracks. Additional work piece splitting techniques and techniques for compensating work piece deformation that occurs during the splitting process are also described.

Publication information

Citation

OpenTechnical Publication OT-2026-000000497, “Method of processing a monocrystalline semiconductor work piece,” published September 15, 2026 at 19:02:58 UTC, https://opentechnical.org/p/OT-2026-000000497.

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