TWI256878B - Electromagnetic interference blocking method and shielding device - Google Patents
Electromagnetic interference blocking method and shielding deviceInfo
- Publication number
- TWI256878B TWI256878B TW93122910A TW93122910A TWI256878B TW I256878 B TWI256878 B TW I256878B TW 93122910 A TW93122910 A TW 93122910A TW 93122910 A TW93122910 A TW 93122910A TW I256878 B TWI256878 B TW I256878B
- Authority
- TW
- Taiwan
- Prior art keywords
- shielding device
- circuit board
- region
- shielded region
- electromagnetic interference
- Prior art date
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
This invention relates to an electromagnetic interference blocking method and a shielding device, which can set up a shielded region for electronic components and circuit layout on both sides of a printed circuit board where electromagnetic wave outspread occurs. A first shielding device is mounted on a surface of the circuit board where no height limitation is imposed to cover the shielded region and the first shielding device is soldered to the surface of a top face of the circuit board. A second shield device is mounted on a surface of an opposite face corresponding to the shielded region to fully cover the shielded region, in which the shielded region has a height limitation zone that sets a height limitation region. The second shielding device has a hollow cover body and at least one extension portion, in which the cover body has side walls on periphery thereof and the extension portion extends from an external portion of the side wall of the periphery of the cover body and completely overlapping the surface of the printed circuit board within the height limitation region. The bottom of the second shielding device is soldered to the surface of the opposite face of the printed circuit board to achieve the effectiveness of electromagnetic interference shielding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93122910A TWI256878B (en) | 2004-07-30 | 2004-07-30 | Electromagnetic interference blocking method and shielding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93122910A TWI256878B (en) | 2004-07-30 | 2004-07-30 | Electromagnetic interference blocking method and shielding device |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200605769A TW200605769A (en) | 2006-02-01 |
TWI256878B true TWI256878B (en) | 2006-06-11 |
Family
ID=37614814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93122910A TWI256878B (en) | 2004-07-30 | 2004-07-30 | Electromagnetic interference blocking method and shielding device |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI256878B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI382645B (en) * | 2006-12-29 | 2013-01-11 | Hon Hai Prec Ind Co Ltd | Power supply apparatus |
-
2004
- 2004-07-30 TW TW93122910A patent/TWI256878B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TW200605769A (en) | 2006-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |