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:
Dec. 11, 2012
Filed:
Feb. 28, 2009
Wei-chung Wang, Hsinchu, TW;
Kuo-hsiung LI, Hsinchu, TW;
Wei-Chung Wang, Hsinchu, TW;
Kuo-Hsiung Li, Hsinchu, TW;
Pixart Imaging Inc., Hsinchu, TW;
Abstract
In an optical mouse, an optical sensing module includes a printed circuit board and a packaging body. The printed circuit board has an upper surface and a lower surface on opposite sides. The packaging body including a compound, an optical sensing die and a lead frame is disposed on the lower surface. The compound has a transparent surface. The optical sensing die used for receiving light is located inner the compound and has an optical sensing surface facing the transparent surface of the compound. The lead frame with a shoulder portion is electrically connected to the optical sensing die. The shoulder portion extends out from the compound along a direction that is parallel to the optical sensing surface of the optical sensing die. The shoulder portion is fixed on the lower surface. The optical sensing module may be used in an optical mouse. In the above optical sensing module, since the packaging body is positioned on the lower surface of the printed circuit board and the shoulder portion is fixed thereon, a preciseness of assembling the above optical sensing module can be easily improved.