These components are putting up an orchestrated effort to avoid our eyes. We use our plastic opening tool to nudge the trackpad control board out of our way, but not remove it...

Apple decided to solder the largest cables onto the trackpad board, meaning we'll have to just flip it out of the way for now. Y U NO ZIF, Apple?

The new trackpad board has some interesting ICs:

ST Microelectronics 32F103 ARM Cortex-M based microcontroller

Broadcom BCM5976 touch screen controller

This is the same lil' guy found in the iPhone 5s as well as the iPad Air.