Taiwan Semiconductor Manufacturing Comp. Ltd.

Lin-Jung Wu

Chi-Ming Yang

Su-Horng Lin

Chin-Hsiang Lin

Victor Y Lu

Chih-Tsung Lee

Chung-Chieh Lee

Jyh-Shiou Hsu

Ya-Ling Lee

Yun-Tzu Chiu

Hsueh-Hui Kuo

The present disclosure relates to an improved method of forming interconnection layers to reduce voids and improve reliability, and an associated device. In some embodiments, a dielectric layer is formed over a semiconductor substrate having an opening arranged within the dielectric layer. A metal seed layer is formed on the surfaces of the opening using a chemical vapor deposition (CVD) process. Then a metal layer is plated onto the metal seed layer to fill the opening. Forming the metal seed layer using a CVD process provides the seed layer with a good uniformity, which allows for high aspect ratio openings in the dielectric layer to be filled without voids or pinch off.

CVD metal seed layer

A method for manufacturing semiconductor structure is disclosed. The method includes: providing a semiconductor substrate; hydrogenizing a surface of the semiconductor substrate; supplying a precursor to the surface of the semiconductor substrate; and supplying a reactant to the surface of the semiconductor substrate. An associated method for performing an atomic layer deposition (ALD) upon a semiconductor substrate and an associated atomic layer deposition (ALD) method are also disclosed.

Atomic layer deposition method for manufacturing semiconductor structure

The present disclosure relates to a method and apparatus for performing a plasma enhanced ALD (PEALD) process that provides for improved step coverage. The process introduces a precursor gas into a processing chamber comprising a semiconductor workpiece. The first gas is ionized to form a plurality of ionized precursor molecules. A bias voltage is subsequently applied to the workpiece. The bias voltage attracts the ionized precursor molecules to the workpiece, so as to provide anisotropic coverage of the workpiece with the precursor gas. A reactant gas is introduced into the processing chamber. A plasma is subsequently ignited from the reactant gas, causing the reactant gas to react with the ionized precursor molecules that have been deposited onto the substrate to form a deposited layer on the workpiece.

Bottom-up PEALD proces

A method of solid precursor delivery for a vapor deposition process is provided. In some embodiments, a precursor ampoule is provided including a solid precursor arranged in the precursor ampoule. A solvent is added to the precursor ampoule including one or more ionic liquids to dissolve chemical species of the solid precursor and to form a liquid precursor. A carrier gas is applied into the liquid precursor through an inlet of the precursor ampoule. A gas precursor is generated at an upper region of the precursor ampoule by vaporization of the liquid precursor. The chemical species of the solid precursor are delivered into a vapor deposition chamber by the carrier gas. The chemical species of the solid precursor is deposited onto a substrate within the vapor deposition chamber.

Solid precursor delivery method using liquid solvent for thin film deposition

Some embodiments relate to a method for semiconductor processing. In this method, a semiconductor wafer is provided. A surface region of the semiconductor wafer is probed to determine whether excess charge is present on the surface region. Based on whether excess charge is present, selectively inducing a corona discharge to reduce the excess charge. Other techniques are also provided.

In-situ charging neutralization

Some embodiments of the present disclosure provide a semiconductor structure. The semiconductor structure includes a substrate, a high k dielectric layer disposed over the substrate, and a gate layer over the high k dielectric layer. The high k dielectric layer is partially crystallized and comprising an average thickness of from about 10 &#x212b; to about 30 &#x212b;. Some embodiments of the present disclosure provide a method for manufacturing a semiconductor structure. The method includes (i) forming a high k dielectric layer with a thickness of from about 10 &#x212b; to about 30 &#x212b; over a substrate, (ii) forming a gate layer over the dielectric layer, and (iii) transforming at least a portion of the dielectric layer from a first phase to a second phase by microwave irradiation.

Semiconductor structure and manufacuturing method of the same

The present disclosure relates to a method and apparatus for performing a plasma enhanced ALD (PEALD) process that provides for improved step coverage. The process introduces a precursor gas into a processing chamber comprising a semiconductor workpiece. The first gas is ionized to from a plurality of ionized precursor molecules. A bias voltage is subsequently applied to the workpiece. The bias voltage attracts the ionized precursor molecules to the workpiece, so as to provide anisotropic coverage of the workpiece with the precursor gas. A reactant gas is introduced into the processing chamber. A plasma is subsequently ignited from the reactant gas, causing the reactant gas to react with the ionized precursor molecules that have been deposited onto the substrate to form a deposited layer on the workpiece.

Bottom-up PEALD process

Methods of fabricating a metal hard mask and a metal hard mask fabricated by such methods are described. The method includes flowing at least one metal reactant gas into a reaction chamber configured to perform chemical vapor deposition (CVD), wherein the at least one metal reactant gas includes a metal-halogen gas or a metal-organic gas. The method further includes depositing a hard mask metal layer by CVD using the at least one metal reactant gas.

Growing community of inventors

Miaoli, Taiwan

Lin-Jung Wu