Patent · US Expired

Heat sink and electromagnetic interference reduction device

US7115817B2 · kind B2 · utility

1Cited by
55References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 18, 2002
Grant dateOct 3, 2006
Priority date
Expiry dateJul 20, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2924/0002
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

An electrical assembly comprising a circuit board an electrical device, and a heat dissipation device. The electrical device is capable of emitting thermal energy and electromagnetic interference (EMI). The electrical device is secured to the circuit board. The heat dissipation device is secured to the circuit board and is in thermal communication with the electrical device. The heat dissipation device also includes a continuous EMI fence and a plurality of fins disposed in a matrix orientation. The fins are spaced from one another to allow for efficient heat dissipation and have a substantially square cross-sectional shape.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.