Patents by Inventor Klaus Elian

Klaus Elian has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7125653
    Abstract: A photoresist layer is applied to the surface of a substrate. The photoresist layer is exposed and then developed, to form a structured polymer. A solution is then applied to the structured polymer that contains at least one organic electrically conductive compound. The structured polymer is converted into a conducting or semiconducting structured polymer.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: October 24, 2006
    Assignee: Infineon Technologies AG
    Inventor: Klaus Elian
  • Patent number: 7005220
    Abstract: A method for structuring a lithograph mask by forming a cured, electrically-conductive layer on a mask structure having a radiation-transmissive substrate and a mask layer at least in portions of the surface of the radiation-transmissive substrate before applying a resist layer, so that during a subsequent irradiation of the resist layer by means of an electronic printing, the electrically conductive layer ensures a good charge elimination. By using a cured, electrically conductive layer, no intermixing effects between the electrically-conductive layer and the resist layer occur, and the electrically-conductive layer will be stable during subsequent development steps and not stripped off.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: February 28, 2006
    Assignee: Infineon Technologies AG
    Inventors: Klaus Elian, Armelle Vix
  • Publication number: 20050250041
    Abstract: A composition is specified which forms an electrically conductive resist layer and comprises a resin that can be crosslinked to form a base polymer, an organic compound that can be crosslinked to form an electrically conductive substance, a crosslinking agent having an oxidative or reductive action, and at least one solvent. An electrically conductive resist layer of this type may be used for example for dissipating electrical charges when patterning a photoresist by means of electrically charged particles.
    Type: Application
    Filed: March 23, 2005
    Publication date: November 10, 2005
    Inventors: Rafael Abargues, Klaus Elian
  • Publication number: 20050042547
    Abstract: The invention relates to a process for the production of biocompatible structures. For this purpose, a chemically amplified photoresist is applied to a substrate and is structured. The photoresist contains a first polymer which has anchor groups for linking a biocompatible compound and a second polymer which is electrically conductive. After the structuring of the resist, a solution of the biocompatible compound is applied so that the biocompatible compound is coordinated to the anchor groups of the polymer.
    Type: Application
    Filed: August 29, 2002
    Publication date: February 24, 2005
    Inventor: Klaus Elian
  • Patent number: 6821706
    Abstract: A polymerizable composition for use in electron beam lithography, according to the following structural formula: The formula use the following definitions. m is a number from 0.1 to 0.9. n is a number from 0.1 to 0.9 with m+n=1. I is an integer from 1 to 100. R1 is H, an alkyl, a halogen, an amine, a silicon compound, or a germanium compound, having a chain length of up to six carbon, silicon, or germanium atoms. R2 is H, an alkyl, a halogen, an amine, a silicon group, or a germanium compound, having a chain length of up to six carbon, silicon, or germanium atoms. R3 is an organic protective group which can be eliminated. A resist and a process using the resist utilize the polymerizable composition. The use of the polymerizable composition in a resist reduces or prevents charging of a substrate at high exposure sensitivity.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: November 23, 2004
    Assignee: Infineon Technologies AG
    Inventors: Klaus Elian, Rafael Abargues
  • Publication number: 20040081910
    Abstract: A polymerizable composition for use in electron beam lithography, according to the following structural formula: 1
    Type: Application
    Filed: July 25, 2003
    Publication date: April 29, 2004
    Inventors: Klaus Elian, Rafael Abargues
  • Patent number: 6703190
    Abstract: A method for creating negative resist structures is described. In the method, a chemically fortified resist is applied to a substrate, dried, irradiated with light, x-ray, electron or ion beams, heated, developed using a aqueous-alkaline developer solution and siliconized from a liquid phase. The resist contains the following constituent: a polymer, whose polarity is modified by acidic action and which contains carboxylic acid anhydride groups, preferably in latent form; a compound which releases an acid as a result of thermal treatment; a photoreactive compound, from which a base is created during the irradiation with light, x-ray, electron or ion beams; a solvent; and optionally one or more additives.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: March 9, 2004
    Assignee: Infineon Technologies AG
    Inventors: Klaus Elian, Stefan Hien, Ernst-Christian Richter, Michael Sebald
  • Patent number: 6686131
    Abstract: A biocompatible structure is produced by first applying a chemically amplified photoresist to a substrate and structuring the photoresist. The photoresist comprises a polymer with anchor groups for linking a biocompatible compound. After the structuring of the resist, a solution of the biocompatible compound is applied so that the biocompatible compound is coordinated to the anchor groups of the polymer.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: February 3, 2004
    Assignee: Infineon Technologies AG
    Inventor: Klaus Elian
  • Publication number: 20040013952
    Abstract: A method for structuring a lithograph mask by forming a cured, electrically-conductive layer on a mask structure having a radiation-transmissive substrate and a mask layer at least in portions of the surface of the radiation-transmissive substrate before applying a resist layer, so that during a subsequent irradiation of the resist layer by means of an electronic printing, the electrically conductive layer ensures a good charge elimination. By using a cured, electrically conductive layer, no intermixing effects between the electrically-conductive layer and the resist layer occur, and the electrically-conductive layer will be stable during subsequent development steps and not stripped off.
    Type: Application
    Filed: June 19, 2003
    Publication date: January 22, 2004
    Applicant: Infineon Technologies AG
    Inventors: Klaus Elian, Armelle Vix
  • Publication number: 20030165752
    Abstract: The invention relates to a resist for electron beam lithography and to a process for producing photomasks for optical lithography. The inventive resist includes repeating units that are derived from maleic anhydride and that can act as an anchor group for the subsequent binding of silicon-containing groups. The etch stability of the resist can thus be subsequently increased so that there is no dimensional loss on transfer of the resist structure to a chromium layer arranged under the resist.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 4, 2003
    Inventors: Klaus Elian, Michael Sebald
  • Publication number: 20030165751
    Abstract: A film of a photoresist, as used for structuring semiconductor substrates, for example a CARL resist, is applied to a chromium-coated quartz glass substrate in a process for producing photomasks. The photoresist layer is written on by a focused electron beam, heated and then developed. The now structured resist is treated with an amplification agent and thus increases in its etch resistance to an oxygen plasma. During etching of the bare chromium sections, the silicon introduced into the photoresist is converted into silicon dioxide, which forms a protective layer on the chromium layer. Thus, the structure written in by the electron beam can be transferred without loss into the chromium layer.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 4, 2003
    Inventors: Klaus Elian, Michael Sebald
  • Publication number: 20030134228
    Abstract: A scintillating structure for aligning an electron or ion beam using a detector while exposing a wafer, which may be a wafer or mask, is described. The structure is formed by a resist including a polymer with carboxylic acid groups, anhydride groups, and an acid-sensitive group, for instance tert.-butylester; a photoreactive compound which releases an acid upon irradiation with UV light, electrons, or ions; a solvent; and at least one scintillating substance such as anthracene, naphthaline and/or 1,4-bis-(5-phenyl-2-oxazolyl)-benzol. After a developing and silylating step, the cross-linked structure is inert with respect to solvents of additional resists that are applied over the structure. The scintillating structure is thus not dissolved, which improves the quality of online controlled electron or ion beam writing.
    Type: Application
    Filed: January 13, 2003
    Publication date: July 17, 2003
    Inventor: Klaus Elian
  • Publication number: 20030087203
    Abstract: A biocompatible structure is produced by first applying a chemically amplified photoresist to a substrate and structuring the photoresist. The photoresist comprises a polymer with anchor groups for linking a biocompatible compound. After the structuring of the resist, a solution of the biocompatible compound is applied so that the biocompatible compound is coordinated to the anchor groups of the polymer.
    Type: Application
    Filed: September 30, 2002
    Publication date: May 8, 2003
    Inventor: Klaus Elian
  • Publication number: 20030027079
    Abstract: A photoresist layer is applied to the surface of a substrate. The photoresist layer is exposed and then developed, to form a structured polymer. A solution is then applied to the structured polymer that contains at least one organic electrically conductive compound. The structured polymer is converted into a conducting or semiconducting structured polymer.
    Type: Application
    Filed: July 9, 2002
    Publication date: February 6, 2003
    Inventor: Klaus Elian
  • Publication number: 20030008240
    Abstract: A method for creating negative resist structures is described. In the method, a chemically fortified resist is applied to a substrate, dried, irradiated with light, x-ray, electron or ion beams, heated, developed using a aqueous-alkaline developer solution and siliconized from a liquid phase. The resist contains the following constituent: a polymer, whose polarity is modified by acidic action and which contains carboxylic acid anhydride groups, preferably in latent form; a compound which releases an acid as a result of thermal treatment; a photoreactive compound, from which a base is created during the irradiation with light, x-ray, electron or ion beams; a solvent; and optionally one or more additives.
    Type: Application
    Filed: June 7, 2002
    Publication date: January 9, 2003
    Inventors: Klaus Elian, Stefan Hien, Ernst-Christian Richter, Michael Sebald
  • Patent number: 6251558
    Abstract: A chemically amplified resist contains the following components: a polymer with carboxylic acid anhydride groups and tert-butylester, tert-butoxycarbonyloxy, tetrahydrofuranyl, or tetrahydropyranyl groups; a photoreactive compound which, when exposed or electron-irradiated, releases a sulfonic acid having a pKa value>0.5 (acid former); a compound that can enter into a reversible chemical reaction with the sulfonic acid (buffer compound); and a solvent.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: June 26, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Elian, Rainer Leuschner, Ewald Guenther
  • Patent number: 6171755
    Abstract: A chemically amplified resist for electron beam lithography contains the following components: a polymer with dissolution-inhibiting groups that can be cleaved with acid catalysis, a photo-reactive compound, which upon electron irradiation releases a sulfonic acid with a pKa value ≦2.5 (photo acid generator), an electron-beam-sensitive sensitizer enhancing the exposure sensitivity of the resist, such as a fluorene derivative, and a solvent.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: January 9, 2001
    Assignee: Infineon Technologies AG
    Inventors: Klaus Elian, Ewald G{umlaut over (u)}nther, Rainer Leuschner