Apparatus and method for shielding printed circuit boards

• US 20060084289A1
• Filed: 10/19/2004
• Published: 04/20/2006
• Est. Priority Date: 10/19/2004
• Status: Active Grant

• Current Assignee: Bi-Link Metal Specialties, Inc.
• Original Assignee: Bi-Link Metal Specialties, Inc.
• Inventors: Ziberna, Frank J.
• Granted Patent: US 7,087,835 B2
• Time in Patent Office: Days
• US Class Current: 439/67
• CPC Class Codes: H05K 9/0022 of components mounted on printed circuit boards [PCB] shields integrated within component packages H01L23/552; shields integrated within PCB H05K1/0218

Abstract

A shielding apparatus for a portion of a printed circuit board is provided comprising a cover for shielding a selected portion of the printed circuit board. The cover includes an edge, wherein a sidewall is molded about the edge of the cover. The sidewall includes a first and second ledge for supporting the edge of the cover. The shielding apparatus is further shown to include an inner wall extending from a first portion of the sidewall to a second portion of the sidewall for defining discrete areas of the printed circuit board being shielded. In this arrangement, the cover may define apertures in the cover along the abutment with the inner wall to improve flow during the insert molding process and provide a mechanical bond between the cover and the inner wall.

Claims

1. A shielding apparatus for shielding at least a portion of a printed circuit board, comprising:

a cover for shielding a selected portion of the printed circuit board, said cover having an edge; and

a sidewall molded about the edge of the cover, said sidewall comprising a first and second ledge for supporting the edge of said cover therebetween, the sidewall being arranged to define a selected portion of a periphery of a shielding apparatus for a portion of a circuit board being shielded.

2. The shielding apparatus of claim 1 wherein the sidewall defines a frame.

3. The shielding apparatus of claim 1 wherein the cover is integral with the sidewall.

4. The shielding apparatus of claim 1 further comprising a first inner wall extending from a first segment of the sidewall to a second segment of the sidewall for defining discrete areas of the printed circuit board being shielded.

5. The shielding apparatus of claim 4 further comprising a second inner wall extending from the first inner wall to a segment of the sidewall for defining discrete areas of the printed circuit board being shielded.

6. The shielding apparatus of claim 4 wherein the cover includes apertures along the abutment with the inner wall.

7. The shielding apparatus of claim 1 wherein the cover includes a vent.

8. The shielding apparatus of claim 1 wherein the edge of said cover is insert molded between the first and second ledge.

9. A method for shielding a portion of a printed circuit board, said method comprising:

providing a cover for shielding a portion of a printed circuit board, the cover having an edge; and

molding a sidewall about the edge of the cover such that the sidewall comprises a first and second ledge for insert molding the edge of the cover therebetween.

10. The method for shielding a portion of a printed circuit board of claim 9, further comprising providing a first inner wall extending from a first segment of the sidewall to a second segment of the sidewall for defining discrete areas of the printed circuit board being shielded.

11. The method for shielding a portion of a printed circuit board of claim 10, further comprising providing a second inner wall extending from the first inner wall to a segment of the sidewall for defining discrete areas of the printed circuit board being shielded.

12. The method for shielding a portion of a printed circuit board of claim 10, further comprising defining apertures in the cover along the abutment with the inner wall for improving flow during the insert molding process.

13. A shielding apparatus for shielding at least a portion of a printed circuit board, comprising:

a cover for shielding a selected portion of the printed circuit board, said cover having an edge; and

a frame molded about the edge of the cover, said frame comprising a first and second ledge for supporting the edge of said cover therebetween, the frame being arranged to define a selected portion of a periphery of a shielding apparatus for a portion of a circuit board being shielded.

14. The shielding apparatus of claim 13 wherein the cover is integral with the frame.

15. The shielding apparatus of claim 13 further comprising a first inner wall extending from a first segment of the frame to a second segment of the frame for defining discrete areas of the printed circuit board being shielded.

16. The shielding apparatus of claim 15 further comprising a second inner wall extending from the first inner wall to a segment of the frame for defining discrete areas of the printed circuit board being shielded.

17. The shielding apparatus of claim 13 wherein the cover includes apertures along the abutment with the inner wall.

18. The shielding apparatus of claim 13 wherein the cover includes a vent.

19. The shielding apparatus of claim 13 wherein the edge of said cover is insert molded between the first and second ledge.