Title:
PRINTED CIRCUIT BOARD CAPABLE OF PREVENTING ELECTROMAGNETIC INTERFERENCE
Document Type and Number:
WIPO Patent Application WO/2020/232760
Kind Code:
A1
Abstract:
Disclosed is a printed circuit board capable of preventing electromagnetic interference. The printed circuit board comprises a shielding shell (1) and a circuit board body (2). The circuit board body (2) comprises a first through hole (21), a second through hole (22) and a chip section (23); a conducting layer (24) is coated, in a circle, on a side wall, close to the second through hole (22), of the first through hole (21), a periphery of the chip section (23), and a side wall, close to the first through hole (21), of the second through hole (22); a first insulating layer (25) is coated, in a circle, on a side wall, away from the second through hole (22), of the first through hole (21) and a left side of the circuit board body (2); and the first insulating layer (25) is coated, in a circle, on a side wall, away from the first through hole (21), of the second through hole (22) and a right side of the circuit board body (2). An electronic chip (6) is respectively mounted at an upper end of the first through hole (21) and an upper end of the second through hole (22), and a pin solder shield (7) is respectively mounted at a lower end of the first through hole (21) and a lower end of the second through hole (22). Electromagnetic signals can be effectively blocked, such that the interference of external electromagnetism on the electronic chips is blocked, and the normal operation of circuits on the chips is ensured.
More Like This:
Inventors:
CHENG JIANWEN (CN)
Application Number:
PCT/CN2019/090477
Publication Date:
November 26, 2020
Filing Date:
June 10, 2019
Export Citation:
Assignee:
KUNSHAN OBET ELECTRONIC TECH CO LTD (CN)
International Classes:
H05K9/00
Foreign References:
| CN205793609U | 2016-12-07 | |||
| CN204741610U | 2015-11-04 | |||
| JP2006332186A | 2006-12-07 | |||
| US20100072952A1 | 2010-03-25 |
Attorney, Agent or Firm:
SUZHOU ZHOUZHI PATENT AGENCY (CN)
Download PDF:
Previous Patent: LIQUID CRYSTAL DISPLAY AND DRIVING INTEGRATED CIRCUIT
Next Patent: CIRCUIT BOARD SUBSTRATE HAVING HIGH THERMAL CONDUCTIVITY
Next Patent: CIRCUIT BOARD SUBSTRATE HAVING HIGH THERMAL CONDUCTIVITY