Taiwan Semiconductor Manufacturing Comp. Ltd.

Imec

Katholieke Universiteit Leuven

Katholieke Universiteit Leuven, Ku Leuven R&d

Joshua Tseng

Henry Lo

Ryan Chia-Jen Chen

Kuo-Tai Huang

Jean Wang

Kang-Cheng Lin

Ching-Ya Wang

Ji-Yi Yang

Yasutoshi Okuno

Gang Wang

Roger Loo

Lars-Ake Ragnarsson

Tom Schram

Stefan De Gendt

Chia-Ming Yang

Naohisa Sengoku

Stefan Kubicek

Thomas Y Hoffman

Zilan Li

Thomas Witters

A method for manufacturing a dual work function semiconductor device includes forming a first silicon oxide layer on a substrate and forming a first hafnium-containing dielectric material layer on the first silicon oxide layer. The method further includes forming an aluminum-containing dielectric material layer on the first hafnium-containing dielectric material layer and performing a thermal treatment to intermix the silicon oxide layer, the first hafnium-containing dielectric material layer and the aluminum-containing dielectric material layers. This results in an intermixing dielectric layer containing hafnium, aluminum, silicon, and oxygen. The method further includes forming a first metal-containing conductive layer on the intermixing dielectric layer and patterning the first metal-containing conductive layer and the intermixing dielectric layer, thereby forming a first gate stack in a first region.

Method for manufacturing a dual work function semiconductor device and the semiconductor device made thereof

A method for manufacturing a dual work function semiconductor device and the device made thereof are disclosed. In one aspect, a method includes providing a gate dielectric layer over a semiconductor substrate. The method further includes forming a metal layer over the gate dielectric layer. The method further includes forming a layer of gate filling material over the metal layer. The method further includes patterning the gate dielectric layer, the metal layer and the gate filling layer to form a first and a second gate stack. The method further includes removing the gate filling material only from the second gate stack thereby exposing the underlying metal layer. The method further includes converting the exposed metal layer into an metal oxide layer. The method further includes reforming the second gate stack with another gate filling material.

Method for fabricating a dual work function semiconductor device and the device made thereof

The present disclosure relates to a device comprising a mono-crystalline substrate, the mono-crystalline substrate having at least one recessed region which exposes predetermined crystallographic planes of the mono-crystalline substrate, the at least one recessed region further having a recess width and comprising a filling material and an embedded nanochannel, wherein the width, the shape, and the depth of the embedded nanochannel is determined by the recess width of the at least one recessed region and by the growth rate of the growth front of the filling material in a direction perpendicular to the exposed predetermined crystallographic planes. The present disclosure is also related to a method for manufacturing a nanochannel device.

Nanochannel device and method for manufacturing thereof

A metal gate/high-k dielectric semiconductor device provides an NMOS gate structure and a PMOS gate structure formed on a semiconductor substrate. The NMOS gate structure includes a high-k gate dielectric treated with a dopant impurity such as La and the high-k gate dielectric material of the PMOS gate structure is deficient of this dopant impurity and further includes a work function tuning layer over the high-k gate dielectric.

High-K dielectric metal gate device structure

A metal gate/high-k dielectric semiconductor device provides an NMOS gate structure and a PMOS gate structure formed on a semiconductor substrate. The NMOS gate structure includes a high-k gate dielectric treated with a dopant impurity such as La and the high-k gate dielectric material of the PMOS gate structure is deficient of this dopant impurity and further includes a work function tuning layer over the high-k gate dielectric. A process for simultaneously forming the NMOS and PMOS gate structures includes forming the high-k gate dielectric material, and the work function tuning layer thereover, then selectively removing the work function tuning layer from the NMOS region and carrying out a plasma treatment to selectively dope the high-k gate dielectric material in the NMOS region with a dopant impurity while the high-k gate dielectric in the PMOS region is substantially free of the dopant impurity.

High-k dielectric metal gate device structure and method for forming the same

A method of forming a metal feature in a low-k dielectric layer is provided. The method includes forming an opening in a low-k dielectric layer, forming a metal layer having a substantially planar surface over the low-k dielectric layer using spin-on method, and stress free polishing the metal layer. Preferably, the metal layer comprises copper or copper alloys. The metal layer preferably includes a first sub layer having a substantially non-planar surface and a second sub layer having a substantially planar surface on the first sub layer.

Method to implement stress free polishing

A method for treating an inter-metal dielectric (IMD) layer to improve a mechanical strength and/or repair plasma etching damage including providing a low-K silicon oxide containing dielectric insulating layer; and carrying out a super critical fluid treatment of the low-K dielectric insulating layer including supercritical COand a solvent including a silicon bond forming substituent having a bonding energy greater than a Si&#x2014;H to replace at least a portion of the Si&#x2014;H bonds with the silicon bond forming substituent.

Method for improving low-K dielectrics by supercritical fluid treatments

A method for forming a damascene structure by providing a single process solution for resist ashing while avoiding and repairing plasma etching damage as well as removing absorbed moisture in the dielectric layer, the method including providing a substrate comprising an uppermost photoresist layer and an opening extending through a thickness of an inter-metal dielectric (IMD) layer to expose an underlying metal region; and, carrying out at least one supercritical fluid treatment comprising supercritical CO2, a first co-solvent, and an additive selected from the group consisting of a metal corrosion inhibitor and a metal anti-oxidation agent to remove the uppermost photoresist layer, as well as including an optional dielectric insulating layer bond forming agent.

Method for forming dual damascenes with supercritical fluid treatments

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Hsin-Chu, Taiwan

Joshua Tseng