Information related to intentionally making an IC have issues including
Backkdoor
Kill switch
See also
Forgery
References
http://spectrum.ieee.org/semiconductors/design/the-hunt-for-the-kill-switch/0
National trying to scare you
http://www.national.com/vcm/NSC_Content/Files/en_US/Milaero/TrustedFoundryOverview.pdf
“Stealthy Dopant-Level Hardware Trojans”:
http://people.umass.edu/gbecker/BeckerChes13.pdf