Electromagnetic wave shield case and a method for manufacturing electromagnetic wave shield case
US7626832B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Jan 29, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/15358
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An objective of the present invention is to form a hyper-elastic flange integrally within a shield case body around a periphery thereof while decreasing an occupied area for grounding. The shield case 2 according to the present invention is disposed to cover electronic parts 6 on a circuit board 1, and which has a flange 7 formed integrally therewith so as to contact with a metallic ground line 3 on the circuit board 1. The flange 7 is elastically deformed to be grounded, thus a leakage of electromagnetic waves to the outside of the shield case 2 is prevented. The flange 7 is made of metallic glass. By forming the flange 7 from metallic glass, a displacement due to viscous flowing on the atomic level, which is different from a plastic deformation, can be utilized, and thus a high precision flange can be formed without a spring-back.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.