Exhibit II

to

Schedule 13G

Joint Filing Agreement

The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 5, 2016 in connection with their beneficial ownership of Lattice Semiconductor Corp. Each of Columbia Seligman Communications & Information Fund and Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and make any necessary amendments thereto.

Ameriprise Financial, Inc.
By:	/s/ Amy Johnson
	Amy Johnson
Title:	Senior Vice President and
	Chief Operating Officer-Asset Management
Columbia Management Investment Advisers, LLC
By:	/s/ Amy Johnson
	Amy Johnson
Title:	Chief Operating Officer and Managing Director
Columbia Seligman Communications & Information Fund
By:	/s/ Paul Goucher
Name:	Paul Goucher
Title:	Senior Vice President, Chief Legal Officer and Assistant Secretary