| US 7,567,235 B2 | ||
| Self-aligning optical sensor package | ||
| Brett A. Spurlock, Los Altos, Calif. (US); Steven Sanders, Belmont, Calif. (US); and Clinton B. Carlisle, Palo Alto, Calif. (US) | ||
| Assigned to Cypress Semiconductor Corporation, San Jose, Calif. (US) | ||
| Filed on Dec. 12, 2005, as Appl. No. 11/301,833. | ||
| Prior Publication US 2007/0131946 A1, Jun. 14, 2007 | ||
| Int. Cl. G06F 3/033 (2006.01); H01L 23/04 (2006.01); H01L 21/00 (2006.01) | ||
| U.S. Cl. 345—166 [257/680; 438/116] | 18 Claims |
| 1. An optical navigation device comprising:
a lead frame having reference features;
a laser attached to the lead frame and positioned in reference to the reference features;
a detector array attached to the lead frame and positioned in reference to the reference features;
an optical component coupled to the lead frame and having alignment features registered to the reference features of the lead
frame such that the optical component is passively aligned to the laser and the detector array; and
an optical aperture art between the lead frame and the optical component and having an emitter aperture configured to restrict
a diameter of a beam of coherent light from the laser, the optical aperture part having reference features registered to the
alignment features of the optical component and the reference features of the lead frame.
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