Patent · US Active

Optical die-down quad flat non-leaded package

US7736930B2 · kind B2 · utility

5Cited by
11References
25Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 14, 2009
Grant dateJun 15, 2010
Priority date
Expiry dateJan 14, 2029

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2924/00014

Abstract

An optical sensor package that includes an optical sensor die is mounted by flip chip interconnect onto a lead frame in a “die-down” orientation, that is, with the active side of the optical sensor die facing the lead frame. An opening is provided in the lead frame die paddle (pad), and light passes from outside the package through the opening in the lead frame die pad onto light collection elements on the active side of the chip.

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