TW511453B - EMI preventing device and its manufacturing method - Google Patents

EMI preventing device and its manufacturing method Download PDF

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Publication number
TW511453B
TW511453B TW090112066A TW90112066A TW511453B TW 511453 B TW511453 B TW 511453B TW 090112066 A TW090112066 A TW 090112066A TW 90112066 A TW90112066 A TW 90112066A TW 511453 B TW511453 B TW 511453B
Authority
TW
Taiwan
Prior art keywords
metal frame
preventing device
circuit board
electronic devices
plurality
Prior art date
Application number
TW090112066A
Inventor
Shiang-Chi Hu
Li-Tu Li
Jau-Shiu Jeng
Jian-Guang Chiou
Original Assignee
Yin King Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yin King Ind Co Ltd filed Critical Yin King Ind Co Ltd
Priority to TW090112066A priority Critical patent/TW511453B/en
Application granted granted Critical
Publication of TW511453B publication Critical patent/TW511453B/en

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007Casings
    • H05K9/002Casings with localised screening
    • H05K9/0022Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0037Housings with compartments containing a PCB, e.g. partitioning walls

Abstract

There are provided an EMI (electromagnetic interference) preventing device and its manufacturing method. At first, a printed circuit board with completed layout and a plurality of electronic devices is provided. Based on the electronic device layout pattern to be shielded, a frame prototype is drew, so as to define a corresponding mold to mold a metal frame. The metal frame is also defined with a plurality of openings corresponding to the number of electronic devices to be shielded, so as to receive the electronic devices and weld the metal frame to the printed circuit board. Finally, a metal foil is adhered on the opening of the metal frame, so as to form a plurality of shielding spaces for blocking the electromagnetic radiation, thereby constructing an EMI preventing device. The metal frame is manufactured and shaped entirely based on the proportion of the circuit layout pattern on the printed circuit board, so as to complete assembly by one time without combining and connecting. Furthermore, it is able to perform the operation of local circuit repairing by simply removing the metal foil.
TW090112066A 2001-05-21 2001-05-21 EMI preventing device and its manufacturing method TW511453B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW090112066A TW511453B (en) 2001-05-21 2001-05-21 EMI preventing device and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW090112066A TW511453B (en) 2001-05-21 2001-05-21 EMI preventing device and its manufacturing method

Publications (1)

Publication Number Publication Date
TW511453B true TW511453B (en) 2002-11-21

Family

ID=27752270

Family Applications (1)

Application Number Title Priority Date Filing Date
TW090112066A TW511453B (en) 2001-05-21 2001-05-21 EMI preventing device and its manufacturing method

Country Status (1)

Country Link
TW (1) TW511453B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8139376B2 (en) 2003-10-03 2012-03-20 Osram Sylvania Inc. Housing for electronic ballast

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8139376B2 (en) 2003-10-03 2012-03-20 Osram Sylvania Inc. Housing for electronic ballast

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GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees