Title:
変圧器/インダクタデバイスとその製造方法
Document Type and Number:
Japanese Patent JP2004515054
Kind Code:
A
Abstract:
The present invention relates to the methods of construction for inductive components of, preferably, ferromagnetic materials such as inductors, chokes, and transformers when used as an integral part of the fabrication of PCB's or FLEX's. In one preferred embodiment, holes are formed through a ferromagnetic substrate and plated with conductive material. The arrangement of these holes, and the subsequent design that ensues, will form the inductive components within the plane of the media in which the device is formed; using the substrate for a magnetic core. By using this approach, the inductive components can be miniaturized to physical sizes compatible with the requirements of modem surface mount technology (SMT) for integrated circuitry (IC). This process also allows these components to be fabricated using mass production techniques, thereby avoiding the need to handle discrete devices during the manufacturing process. In another preferred embodiment, a series of thin, concentric high permeability rings are etched on a substrate to provide high permeability transformers and inductors having minimal eddy current effects.
More Like This:
Inventors:
Harding Philip A.
Application Number:
JP2002528898A
Publication Date:
May 20, 2004
Filing Date:
September 24, 2001
Export Citation:
Assignee:
M-Flex Multi-Fineline Electronics Incorporated
International Classes:
H01F41/00; H01F17/00; H01F17/04; H01F30/00; H01F37/00; H01F41/04; H05K1/16; H05K3/06; H05K3/42; H05K3/46; (IPC1-7): H01F41/00; H01F17/00; H01F17/04; H01F30/00; H01F37/00
Attorney, Agent or Firm:
Eiji Saegusa
Kakehi Yuro
Takeshi Ohara
Hiroji Nakagawa
Yasumitsu Tate
Kenji Saito
Jun Fujii
Hitoshi Seki
Mutsuko Nakano
Kakehi Yuro
Takeshi Ohara
Hiroji Nakagawa
Yasumitsu Tate
Kenji Saito
Jun Fujii
Hitoshi Seki
Mutsuko Nakano