IMAGE SENSORS WITH CONTAMINATION BARRIER STRUCTURES

摘要

An image sensor package including a barrier structure to prevent image sensor die contamination is described. A barrier structure may surround an image sensor die that is attached on an image sensor carrier. The barrier structure may be attached to a transparent window structure as well as a package substrate. The barrier structure may extend through a hole in the package substrate. The image sensor carrier may be mounted to the package substrate using a thermal compression head that is able to apply independently varying compressive forces to corresponding regions of a surface at a given time. The thermal compression head may be used to cure the barrier structure and/or adhesives used in the image sensor package. Underfill adhesive may be deposited between discrete mounting structures used to mount the package substrate to the image sensor carrier, after the barrier structure has been applied.

主权项

1. An image sensor package, comprising:
an image sensor carrier; an image sensor die attached to the image sensor carrier; and a barrier structure that surrounds the image sensor die.