SUBSTRATE PROCESSING METHOD AND SUBSTRATE PROCESSING APPARATUS

    公开(公告)号:US20240355669A1

    公开(公告)日:2024-10-24

    申请号:US18689484

    申请日:2022-08-26

    摘要: A substrate processing method of processing a combined substrate in which a first substrate and a second substrate are bonded to each other is provided. A device layer including multiple devices is formed on a front surface side of the first substrate. The substrate processing method includes forming a light leakage prevention layer by radiating first laser light to an oxygen-containing film formed between the device layer and a position where a modification layer serving as a starting point for separation of the first substrate is formed; forming the modification layer by radiating second laser light to an inside of the first substrate after the forming of the light leakage prevention layer; and separating the first substrate starting from the modification layer to thin the first substrate.

    SUBSTRATE GRINDING TOOL AND METHODS OF OPERATION

    公开(公告)号:US20240332026A1

    公开(公告)日:2024-10-03

    申请号:US18326494

    申请日:2023-05-31

    摘要: A substrate grinding tool is configured to remove material from a semiconductor substrate in a grinding operation. In the grinding operation, the substrate grinding tool uses a combination of mechanical grinding and a chemical etchant to remove material from the semiconductor substrate. The chemical etchant may be heated to a high temperature, which may increase the etch rate of the chemical etchant. The use of the combination of mechanical grinding and the chemical etchant may increase the grinding rate of the substrate grinding tool for grinding semiconductor substrates, may reduce surface roughness for semiconductor substrates that are processed by the substrate grinding tool, and/or may reduce surface damage for semiconductor substrates that are processed by the substrate grinding tool, among other examples.

    POLISHING PAD AND PREPARING METHOD OF SEMICONDUCTOR DEVICE

    公开(公告)号:US20240300066A1

    公开(公告)日:2024-09-12

    申请号:US18590378

    申请日:2024-02-28

    摘要: The present invention provides a polishing pad, which includes a polishing layer including a first surface that is a polishing surface and a second surface that is the back surface of the first surface and including first through holes formed to penetrate from the first surface to the second surface; windows placed within the first through holes; and a support layer placed on the side of the second surface of the polishing layer, including a third surface that is placed on the side of the polishing layer and a fourth surface that is the back surface of the third surface, and including second through holes formed to penetrate from the third surface to the fourth surface and connected to the first through holes. The windows include a first region where the height of a top surface is lower than the height of the first surface.