FORMATION AND IN-SITU TREATMENT PROCESSES FOR GAP FILL LAYERS

    公开(公告)号:US20190341294A1

    公开(公告)日:2019-11-07

    申请号:US16517934

    申请日:2019-07-22

    Abstract: The present disclosure relates to a semiconductor device and a manufacturing method, and more particularly to a semiconductor device having an enhanced gap fill layer in trenches. The present disclosure provides a novel gap fill layer formed using a multi-step deposition and in-situ treatment process. The deposition process can be a flowable chemical vapor deposition (FCVD) utilizing one or more assist gases and molecules of low reactive sticking coefficient (RSC). The treatment process can be an in-situ process after the deposition process and includes exposing the deposited gap fill layer to plasma activated assist gas. The assist gas can be formed of ammonia. The low RSC molecule can be formed of trisilylamin (TSA) or perhydropolysilazane (PHPS).

    FINFET DEVICE AND METHOD OF FORMING SAME

    公开(公告)号:US20240387237A1

    公开(公告)日:2024-11-21

    申请号:US18786479

    申请日:2024-07-27

    Abstract: A semiconductor device a method of forming the same are provided. The semiconductor device includes a substrate, a first isolation structure and a second isolation structure over the substrate, a semiconductor fin over the substrate and between the first isolation structure and the second isolation structure, and a third isolation structure extending through the semiconductor fin and between the first isolation structure and the second isolation structure. A top surface of the semiconductor fin is above a top surface of the first isolation structure and a top surface of the second isolation structure. The third isolation structure includes a first dielectric material and a second dielectric material over the first dielectric material. An interface between the first dielectric material and the second dielectric material is below the top surface of the first isolation structure and the top surface of the second isolation structure.

    Integrated circuit isolation feature and method of forming the same

    公开(公告)号:US11387138B2

    公开(公告)日:2022-07-12

    申请号:US16362965

    申请日:2019-03-25

    Abstract: Examples of a technique for forming a dielectric material for an integrated circuit are provided herein. In an example, an integrated circuit workpiece is received that includes a recess. A first dielectric precursor is deposited in the recess. The first dielectric precursor includes a non-semiconductor component. A second dielectric precursor is deposited in the recess on the first dielectric precursor, and an annealing process is performed such that a portion of the non-semiconductor component of the first dielectric precursor diffuses into the second dielectric precursor. The non-semiconductor component may include oxygen, and the annealing process may be performed in one of a vacuum or an inert gas environment.

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