Tel Epion Corporation

Tokyo Electron Limited

Luis Fernandez

Christopher K Olsen

Yan Shao

Noel Russell

Soo Doo Chae

Martin D Tabat

Nicholas Joy

Masafumi Urakawa

Steven P Caliendo

Joshua LaRose

Vincent Lagana-Gizzo

Allen J Leith

Ruairidh MacCrimmon

Edmund Burke

A system and method for performing location specific processing of a workpiece is described. The method includes placing a microelectronic workpiece in a beam processing system, selecting a beam scan size for a beam scan pattern that is smaller than a dimension of the microelectronic workpiece, generating a processing beam, and processing a target region of the microelectronic workpiece by irradiating the processing beam along the beam scan pattern onto the target region within the beam scan size selected for processing the microelectronic workpiece.

Method for high throughput using beam scan size and beam position in gas cluster ion beam processing system

A method and system for performing gas cluster ion beam (GCIB) etch processing of various materials is described. In particular, the GCIB etch processing includes setting one or more GCIB properties of a GCIB process condition for the GCIB to achieve one or more target etch process metrics. Furthermore, the GCIB etch processing utilizes Si-containing and/or Ge-containing etchants. Further yet, the GCIB etch processing facilitates etching Si-containing material, Ge-containing material, and metal-containing material.

Gas cluster ion beam etching process for etching Si-containing, Ge-containing, and metal-containing materials

A gas cluster ion beam (GCIB) etching method for adjusting a fin height in finFET devices is described. The method includes providing a substrate having a fin structure and a gap-fill material layer completely overlying the fin structure and filling the regions between each fin of the fin structure, wherein each fin includes a cap layer formed on a top surface thereof, and planarizing the gap-fill material layer until the cap layer is exposed on at least one fin of the fin structure. Additionally, the method includes setting a target fin height for the fin structure, wherein the fin height measured from an interface between the cap layer and the fin structure, and exposing the substrate to a GCIB and recessing the gap-fill material layer relative to the cap layer until the target fin height is substantially achieved.

GCIB etching method for adjusting fin height of finFET devices

A method for opening a conformal layer at the bottom of a contact via on a substrate is described. The method includes providing a substrate having a first layer with a via pattern formed therein and a second layer conformally deposited on the first layer and within the via pattern to establish a contact via pattern characterized by an initial mid-critical dimension (CD). The method further includes etching through the second layer at the bottom of the contact via pattern to extend the contact via pattern through the second layer and form a contact via while retaining at least part of the second layer on the top surface of the first layer, the corner at the entrance to the via pattern, and the sidewalls of the via pattern, wherein the etching is performed by irradiating the substrate with a gas cluster ion beam (GCIB) according to a GCIB etching process.

Gas cluster ion beam process for opening conformal layer in a high aspect ratio contact via

A method for patterning a layer at a bottom of a high aspect ratio feature of a substrate is described. The method includes providing the substrate having a first layer with a feature pattern overlying a second layer. The feature pattern is characterized with an initial critical dimension (CD), an initial corner profile, and an aspect ratio of 5:1 or greater. The method further includes etching through at least a portion of the second layer at the bottom of the feature pattern to extend the feature pattern at least partially into the second layer while retaining a final CD within a threshold of the initial CD and a final corner profile within a threshold of the initial corner profile using a gas cluster ion beam (GCIB) etching process.

A method and system for etching a hafnium containing material using a boron tri-chloride (BCl) based process chemistry is described. A substrate having a hafnium containing layer, such as a layer of hafnium dioxide (HfO) is subjected a dry etching process comprising BCland an additive gas including: an oxygen-containing gas, such as O; or a nitrogen-containing gas, such as N; or a hydrocarbon gas (CH), such as CH; or a combination of two or more thereof.

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Somerville, MA, United States of America

Luis Fernandez