Patents by Inventor Roman Perez

Roman Perez 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: 6750082
    Abstract: A method of assembling a package having an exposed die comprising the following steps. A die attached to a substrate by connectors is provided. The die having a backside. Encapsulate is formed around the die and over the backside of the die to form an encapsulated package. The encapsulate overlying the backside of the die and a portion of the backside of the die are removed using a backside exposure process to complete the assembled package having the die exposed.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: June 15, 2004
    Assignee: Advanpack Solutions Pte. Ltd.
    Inventors: John Briar, Roman Perez, Tan Kim Hwee
  • Publication number: 20040108580
    Abstract: A semiconductor chip packaging structure is described. The structure comprising of a semiconductor chip interconnected to a recessed lead frame and the resultant assembly encapsulated in a molding compound. The final product is a reverse mounted semiconductor chip in a leadless quad flat pack configuration. A second embodiment allows for the semiconductor chip backside to be exposed for thermal enhancements. Manufacturing methods are also described for the two embodiments disclosed.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Applicant: Advanpack Solutions Pte. Ltd.
    Inventors: Kim Hwee Tan, Roman Perez, Kee Kwang Lau, Alex Chew, Antonio Dimaano
  • Patent number: 6734039
    Abstract: A chip level package utilizing a CGA is described. A semiconductor chip with pillars is molded in an encapsulant. Solder balls are added and connected to the chip pillars. The final package does not require a first level substrate or interposer and is able to be assembled to the next level as is.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: May 11, 2004
    Assignee: Advanpack Solutions Pte Ltd.
    Inventors: Tan Kim Hwee, Roman Perez, Kee Kwang Lau, Alex Chew, Antonio Dimaano
  • Publication number: 20040084508
    Abstract: A method and structure for controlling solder spread in a predefined/designed area during flip chip assembly build is disclosed. Using conventional processes used in the art blind holes or dimples are incorporated onto the lead frame which then act as containers or wells trapping the solder and thereby preventing it from spreading wider.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Applicant: Advanpack Solutions Pte. Ltd.
    Inventors: John Briar, Roman Perez, Kee Kwang Lau, Alex Chew
  • Publication number: 20040053445
    Abstract: A method of assembling a package having an exposed die comprising the following steps. A die attached to a substrate by connectors is provided. The die having a backside. Encapsulate is formed around the die and over the backside of the die to form an encapsulated package. The encapsulate overlying the backside of the die and a portion of the backside of the die are removed using a backside exposure process to complete the assembled package having the die exposed.
    Type: Application
    Filed: September 13, 2002
    Publication date: March 18, 2004
    Applicant: Advanpack Solutions Pte. Ltd.
    Inventors: John Briar, Roman Perez, Tan Kim Hwee
  • Publication number: 20040046257
    Abstract: A chip level package utilizing a CGA is described. A semiconductor chip with pillars is molded in an encapsulant. Solder balls are added and connected to the chip pillars. The final package does not require a first level substrate or interposer and is able to be assembled to the next level as is. An additional embodiment describes the addition of a thermal heat sink to the packaged chip.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Applicant: Advanpack Solutions Pte.Ltd.
    Inventors: Tan Kim Hwee, Roman Perez, Kee Kwang Lau, Alex Chew, Antonio Dimaano
  • Publication number: 20040046238
    Abstract: A chip level package utilizing a CGA is described. A semiconductor chip with pillars is molded in an encapsulant. Solder balls are added and connected to the chip pillars. The final package does not require a first level substrate or interposer and is able to be assembled to the next level as is.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Applicant: Advanpack Solutions Pte Ltd.
    Inventors: Tan Kim Hwee, Roman Perez, Kee Kwang Lau, Alex Chew, Antonio Dimaano
  • Patent number: 6696079
    Abstract: Antitumor compositions are disclosed, as well as methods of preparing the compositions and methods of using them to inhibit tumor growth in mammals. The invention can take advantage of intraliposomal conversion of a platinum complex having the formula where R1 is diaminocycloalkyl, and R2 and R3 each have the formula where R4, R5, and R6 are each independently hydrocarbon moieties having from 1 to about 10 carbon atoms, into a complex having the formula R1—Pt—X2  (II) where X is halogen.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: February 24, 2004
    Assignee: Board of Regents, The University of Texas System
    Inventors: Roman Perez-Soler, Abdul R. Khokhar
  • Patent number: 6680300
    Abstract: The present invention discloses new and novel substituted anthracyclines having a three ring system or other DNA binding moieties. These congeners show high activity in vitro against several tumor cell lines. The invention also describes anthracycline-based DNA alkylators.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: January 20, 2004
    Assignee: Board of Regents, The University of Texas System
    Inventors: Waldemar Priebe, Teresa Przewloka, Izabela Fokt, Yi-He Ling, Roman Perez-Soler
  • Patent number: 6673907
    Abstract: The present invention discloses new and novel substituted anthracyclines with modified alkyl-aromatic ring substitutions on the C-3′ of the sugar moiety or modified or unmodified alkyl-aromatic ring substitutions at the C-4′ of the sugar moiety. It also discloses novel methods for the preparation of sugar substrates and methods for the preparation of anthracycline antibiotics. These anthracycline analogs show high cytotoxicity in vitro against several tumor cell lines.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: January 6, 2004
    Assignee: Houston Pharmaceuticals, Inc.
    Inventors: Waldemar Priebe, Izabella Fokt, Teresa Przewloka, Marta Krawczyk, Piotr Skibicki, Grzegorz Grynkiewicz, Roman Perez-Soler
  • Patent number: 6620403
    Abstract: A method of evaluating the chemosensitivity of a tumor to an anti-tumor agent in vivo is provided. The method comprises extracting a portion of a tumor from a human host and inserting the portion of the tumor into an immunodeficient mouse. The tumor portion is permitted to grow to a minimum preselected size to form a test tumor. An amount of an anti-tumor agent is administered to the immunodeficient mouse sufficient to determine whether the anti-tumor agent is effective in treating the test tumor. The anti-tumor activity of the anti-tumor agent on the test tumor is assessed.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: September 16, 2003
    Inventor: Roman Perez-Soler
  • Publication number: 20030059375
    Abstract: A method of treating bronchoalveolar carcinoma, carcinomatosis with lymphangitic spread or primary and metastatic lung cancers by administering one or more bioactive agents by inhalation of a lipid composition. The one or more bioactive agents preferably comprise cisplatin, carboplatin or a taxane.
    Type: Application
    Filed: August 20, 2002
    Publication date: March 27, 2003
    Applicant: Transave, Inc.
    Inventors: Roman Perez-Soler, Frank Pilkiewicz
  • Patent number: 6527765
    Abstract: The present invention is directed towards a surgical system and method of use for treating and removing unwanted tissue, preferably from an organ or other internal part of a patient. The system includes a cryosurgical component for first freezing the unwanted living tissue by forming an ice mass which completely encompasses the unwanted living tissue and means for treating the cryogenically-treated tissue and then removing the tissue while it remains in a frozen state. In one embodiment, an ultrasonic device is used to ultrasonically vibrate the cryogenically-treated tissue to break apart the frozen tissue and the frozen broken-up pieces of tissue are removed using a technique, such as an aspiration process.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: March 4, 2003
    Inventors: Charles D. Kelman, Roman Perez-Soler
  • Publication number: 20030023052
    Abstract: The present invention discloses new and novel substituted anthracyclines having a three ring system or other DNA binding moieties. These congeners show high activity in vitro against several tumor cell lines. The invention also describes anthracycline-based DNA alkylators.
    Type: Application
    Filed: August 19, 2002
    Publication date: January 30, 2003
    Applicant: Board of Regents, The University of Texas System
    Inventors: Waldemar Priebe, Teresa Przewloka, Izabela Fokt, Yi-He Ling, Roman Perez-Soler
  • Publication number: 20020187105
    Abstract: The use of non-viral delivery of therapeutically effective compositions through aerosol for therapy or research purpose has been limited by the low efficiency mainly caused by an inefficient delivery system and destruction of formulation (gene and/or delivery system) by aerosol shearing power. This invention develops formulations that are established polymer combination formulations. The formulations are highly efficient in delivering genes in vivo through aerosol and are able to protect the delivered gene from the destruction by aerosol shearing power.
    Type: Application
    Filed: February 1, 2002
    Publication date: December 12, 2002
    Inventors: Yiyu Zou, Roman Perez-Soler
  • Publication number: 20020137694
    Abstract: The present invention discloses new and novel substituted anthracyclines with modified alkyl-aromatic ring substitutions on the C-3′ of the sugar moiety or modified or unmodified alkyl-aromatic ring substitutions at the C-4′ of the sugar moiety. It also discloses novel methods for the preparation of sugar substrates and methods for the preparation of anthracycline antibiotics. These anthracycline analogs show high cytotoxicity in vitro against several tumor cell lines.
    Type: Application
    Filed: September 19, 2001
    Publication date: September 26, 2002
    Inventors: Waldemar Priebe, Izabella Fokt, Teresa Przewloka, Marta Krawczyk, Piotr Skibicki, Grzegorz Grynkiewicz, Roman Perez-Soler
  • Patent number: 6437105
    Abstract: The present invention discloses new and novel substituted anthracyclines having a three ring system or other DNA binding moieties. These congeners show high activity in vitro against several tumor cell lines. The invention also describes anthracycline-based DNA alkylators.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: August 20, 2002
    Assignee: Board of Regents, The University of Texas System
    Inventors: Waldemar Priebe, Teresa Przewloka, Izabela Fokt, Yi-He Ling, Roman Perez-Soler
  • Publication number: 20020110601
    Abstract: A sepsis-avoiding and hydrostatic-neutral method of administering platinum therapeutic agents into a body cavity of a subject by means of introduction through a hydrostatic-tight indwelling catheter.
    Type: Application
    Filed: April 24, 2001
    Publication date: August 15, 2002
    Inventors: Roman Perez-Soler, Dong Shin, Garrett Walsh
  • Publication number: 20020042609
    Abstract: The present invention is directed towards a surgical system and method of use for treating and removing unwanted tissue, preferably from an organ or other internal part of a patient. The system includes a cryosurgical component for first freezing the unwanted living tissue by forming an ice mass which completely encompasses the unwanted living tissue and means for treating the cryogenically-treated tissue and then removing the tissue while it remains in a frozen state. In one embodiment, an ultrasonic device is used to ultrasonically vibrate the cryogenically-treated tissue to break apart the frozen tissue and the frozen broken-up pieces of tissue are removed using a technique, such as an aspiration process.
    Type: Application
    Filed: February 1, 2001
    Publication date: April 11, 2002
    Inventors: Charles D. Kelman, Roman Perez-Soler
  • Publication number: 20020031473
    Abstract: A method of evaluating the chemosensitivity of a tumor to an anti-tumor agent in vivo is provided. The method comprises extracting a portion of a tumor from a human host and inserting the portion of the tumor into an immunodeficient mouse. The tumor portion is permitted to grow to a minimum preselected size to form a test tumor. An amount of an anti-tumor agent is administered to the immunodeficient mouse sufficient to determine whether the anti-tumor agent is effective in treating the test tumor. The anti-tumor activity of the anti-tumor agent on the test tumor is assessed.
    Type: Application
    Filed: April 24, 2001
    Publication date: March 14, 2002
    Inventor: Roman Perez-Soler