Patents Assigned to Angstron Systems, Inc.
  • Patent number: 6630201
    Abstract: A method for conducting an ALD process to deposit layers on a substrate which includes an electrostatic chuck (ESC) to retain the substrate. Electrode(s) in the chuck assembly are used to induce a voltage on the substrate to promote precursor adsorption on the substrate.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: October 7, 2003
    Assignee: Angstron Systems, Inc.
    Inventors: Tony P. Chiang, Karl F. Leeser, Jeffrey A. Brown, Jason E. Babcoke
  • Patent number: 6569501
    Abstract: The present invention relates to an enhanced sequential atomic layer deposition (ALD) technique suitable for deposition of barrier layers, adhesion layers, seed layers, low dielectric constant (low-k) films, high dielectric constant (high-k) films, and other conductive, semi-conductive, and non-conductive films. This is accomplished by 1) providing a non-thermal or non-pyrolytic means of triggering the deposition reaction; 2) providing a means of depositing a purer film of higher density at lower temperatures; and, 3) providing a faster and more efficient means of modulating the deposition sequence and hence the overall process rate resulting in an improved deposition method.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: May 27, 2003
    Assignee: Angstron Systems, Inc.
    Inventors: Tony P. Chiang, Karl F. Leeser
  • Publication number: 20020144786
    Abstract: A deposition system includes a process chamber for conducting an ALD process to deposit layers on a substrate. An electrostatic chuck (ESC) retains the substrate. A backside gas increases thermal coupling between the substrate and the ESC. The ESC is cooled via a coolant flowing through a coolant plate and heated via a resistive heater. Various arrangements are disclosed.
    Type: Application
    Filed: October 24, 2001
    Publication date: October 10, 2002
    Applicant: Angstron Systems, Inc.
    Inventors: Tony P. Chiang, Karl F. Leeser, Jeffrey A. Brown, Jason E. Babcoke
  • Patent number: 6428859
    Abstract: The present invention relates to an enhanced sequential atomic layer deposition (ALD) technique suitable for deposition of barrier layers, adhesion layers, seed layers, low dielectric constant (low-k) films, high dielectric constant (high-k) films, and other conductive, semi-conductive, and non-conductive films. This is accomplished by 1) providing a non-thermal or non-pyrolytic means of triggering the deposition reaction; 2) providing a means of depositing a purer film of higher density at lower temperatures; and, 3) providing a faster and more efficient means of modulating the deposition sequence and hence the overall process rate resulting in an improved deposition method. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: August 6, 2002
    Assignee: Angstron Systems, Inc.
    Inventors: Tony P. Chiang, Karl F. Leeser