The systems modders at Condemned Customs have taken a brand new PlayStation 4 controller—the DualShock 4—and stripped it down to its constituent parts.
Condemned Customs sells legitimate Sony-branded products, so they know exactly what they're doing with the strip-down.
The disassembly goes very much into detail about the PS4 controller and is viewable at a full 1080p, for those of you who care to watch a high-resolution version of that sort of thing.