An integrated circuit package includes an angled one-piece substrate
having a light source fixed to one area and a sensor die fixed to a
second area, such that the light source is directed to illuminate the
field of view of the sensor die when a surface of interest is imaged. The
integrated circuit package is well suited for generating navigation
information regarding movement relative to a surface. In one method of
forming the integrated circuit package, the single-piece substrate is
originally a generally flat lead frame to which the sensor die and light
source are attached. After the components have been connected, the lead
frame is bent to provide the desired light source-to-sensor angle. In an
alternative method, the lead frame is pre-bent. For either method, optics
may be connected to the integrated circuit package, thereby providing a
module that includes the optics, the light source, the sensor and the
packaging body.