Invention Grant
- Patent Title: Electromagnetic interference shielding on semiconductor devices
- Patent Title (中): 半导体器件上的电磁干扰屏蔽
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Application No.: US12764704Application Date: 2010-04-21
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Publication No.: US08576574B2Publication Date: 2013-11-05
- Inventor: Wingshenq Wong , David Gani , Glenn De Los Reyes
- Applicant: Wingshenq Wong , David Gani , Glenn De Los Reyes
- Applicant Address: SG Singapore
- Assignee: STMicroelectronics Pte Ltd.
- Current Assignee: STMicroelectronics Pte Ltd.
- Current Assignee Address: SG Singapore
- Agency: Seed IP Law Group PLLC
- Main IPC: H05K1/18
- IPC: H05K1/18

Abstract:
A conductive paint electromagnetic interference (EMI) shield for an electronic module or device. The conductive paint is composed of metal particles suspended in a fluidic carrier. In one embodiment, the conductive paint is sprayed onto exterior surfaces of an electronic module or device from a spray gun. The sprayed conductive paint is cured to remove the fluidic carrier, leaving a metal film coated to the outside of the module or device. In one embodiment used with electronic packages in array form, grooves are cut into an encapsulation material of a module so that the shield protection includes sidewalls of the package. In another embodiment used with camera modules, masking is used to selectively shield portions of the module. In a further embodiment, the shield is electrically connected to a ground conductor of a circuit of the electronic module.
Public/Granted literature
- US20110261550A1 USE OF CONDUCTIVE PAINT AS A METHOD OF ELECTROMAGNETIC INTERFERENCE SHIELDING ON SEMICONDUCTOR DEVICES Public/Granted day:2011-10-27
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