Patents by Inventor Chien-Pin S. Hsu

Chien-Pin S. Hsu 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: 8557757
    Abstract: A cleaning composition for cleaning microelectronic or nanoelectronic devices, the cleaning composition having HF as the sole acid and sole fluoride compound in the composition, at least one primary solvent selected from the group consisting of sulfones and selenones, at least one polyhydroxyl alkyl or aryl alcohol co-solvent having metal ion complexing or binding sites, and water, and optionally at least one phosphonic acid corrosion inhibitor compound and the is free of amines, bases and other salts.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: October 15, 2013
    Assignee: Avantor Performance Materials, Inc.
    Inventors: Chien-Pin S. Hsu, Glenn Westwood, William R. Gemmill
  • Publication number: 20110306534
    Abstract: A cleaning composition for cleaning microelectronic or nanoelectronic devices, the cleaning composition having HF as the sole acid and sole fluoride compound in the composition, at least one primary solvent selected from the group consisting of sulfones and selenones, at least one polyhydroxyl alkyl or aryl alcohol co-solvent having metal ion complexing or binding sites, and water, and optionally at least one phosphonic acid corrosion inhibitor compound and the is free of amines, bases and other salts.
    Type: Application
    Filed: January 14, 2010
    Publication date: December 15, 2011
    Inventors: Chien-Pin S. Hsu, Glenn Westwood, William R. Gemmill
  • Patent number: 7718591
    Abstract: Ammonia-free, HF-free cleaning compositions for cleaning photoresist and plasma ash residues from microelectronic substrates, and particularly to such cleaning compositions useful with and having improved compatibility with microelectronic substrates characterized by sensitive porous and low-? to high-? dielectrics and copper metallization. The cleaning composition contain one or more non-ammonium producing, non-HF producing fluoride salt (non ammonium, quaternary ammonium fluoride salt) in a suitable solvent matrix.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: May 18, 2010
    Assignee: Mallinckrodt Baker, Inc.
    Inventor: Chien-Pin S. Hsu
  • Patent number: 6203679
    Abstract: An electrophoresis container apparatus having (1) a primary container tray made from a UV light transmitting materials, (2) a UV light transmitting gel contained in the primary container tray, and (3) a removable top sheet for covering the gel. The removable top sheet may also be UV light transmitting. The apparatus optionally comes with a handle having pincers for grasping the primary container and permitting easy movement of the apparatus from location to location. Because the apparatus transmits UV light, the gel can be used and analyzed while it is still in the tray. This eliminates the need to remove the gel before analysis and reduces the chances that the gel will be damaged during handling. Similarly, because the apparatus has an optional handle, the user can move the apparatus form location to location without touching the apparatus and exposing the user to dangerous chemicals, e.g., those often used in staining procedures.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: March 20, 2001
    Assignee: Mallinckrodt Inc.
    Inventors: Paul A. Bouis, Steven C. Magee, Chien-Pin S. Hsu
  • Patent number: 4659774
    Abstract: This invention relates to a support for oligonucleotide synthesis and more particularly to a necleoside-linker/polymer support composite having the general formulaP'--S'wherein P' is a polymer support which bears oxirane, aziridine or episulfide groups or which contains good leaving groups for nucleophilic displacement; and S' is a nucleoside-linker having the general formulaW--(CH.sub.2).sub.a --X--(CH.sub.2).sub.b --Y--(CH.sub.2).sub.c --Zwherein W and Z each independently comprise a nucleophile; X and Y which, independently may or may not be present, comprise groups of high hydrophilicity; and a, b, c are integers from 0 to 9, wherein a plus b plus c exceeds 6.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: April 21, 1987
    Assignee: American Hoechst Corporation
    Inventors: Thomas R. Webb, Chien-Pin S. Hsu