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 March 11, 2019 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 K. Johnson
	Amy K. Johnson
	Title: Senior Vice President and
	Chief Operating Officer-Asset Management

Columbia Management Investment Advisers, LLC

By:	/s/ Amy K. Johnson
	Amy K. Johnson
	Title: Managing Director and Global Head of Operations

Columbia Seligman Communications & Information Fund

By:	/s/ Paul Goucher
	Name: Paul Goucher
	Title: Senior Vice President and Assistant Secretary