Patents by Inventor Young Tak Ahn

Young Tak Ahn 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).

  • Poly(imide-siloxane) compound for tapeless LOC packaging
    Patent number: 6468664
    Abstract: The present invention relates to a poly(imide-siloxane) compound useful as passivation layer for packaging tapeless LOC, which is produced by reacting in a polar solvent a diaminosiloxane compound of the formula(1) wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are independently an aromatic group, aliphatic group or halogenated hydrocarbon, hydroxy, or ether group, and m and n are integers such that m+n is an integer of 0˜1000; and a diamine compound of the formula(2) H2N—R—NH2   (2) wherein R is at least one selected from the below groups: with an aromatic tetracarboxylic dianhydride of the formula (3) wherein A is at least one selected from the below groups: wherein the number of moles of the compound (3) is the same as the total number of moles of compounds (1) and (2).
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: October 22, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chan Eon Park, Jin Ho Kang, Sang Min Song, Young Tak Ahn, Jae Geun Park, Myung Sup Jung