The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2003
Filed:
Jun. 19, 2000
Eugen Koleda, Herlev, DK;
Nokia Mobile Phones Ltd., Espoo, FI;
Abstract
A shielding can for a printed circuit board which includes a frame with side walls and a lid with apparatus to increase flexibility of the lid. The flexibility apparatus are slits on the sides of the lid. These slits enable a flexible contraction, when soldering the shielding can onto the printed circuit board. The invention also includes a method for mounting the shielding can onto printed circuit boards. The shielding can is placed onto the printed circuit board and heated slowly to melt the solder paste to solder the shielding can to the printed circuit board. The heating phase is followed by a fast cooling phase, and the flexible apparatus (the slits on the shielding can) reduces the internal stress, which occurs when the shielding can is exposed to different temperatures at the same time, without any permanent deformations.