POWER OF ATTORNEY
The undersigned, as a Section 16 reporting person of Pacific Biosciences of
California, Inc. (the "Company"), hereby constitutes and appoints Susan K. Barnes, Brian Dow and Stephen Moore, and each of them, the undersigned's true and lawful attorney-in-fact to:
1. complete and execute Forms 3, 4 and 5 and other forms and all amendments
thereto as such attorney-in-fact shall in his or her discretion determine
to be required or advisable pursuant to Section 16 of the Securities Exchange
Act of 1934 (as amended) and the rules and regulations promulgated thereunder,or any successor laws and regulations, as a consequence of the undersigned's ownership, acquisition or disposition of securities of the Company; and
2. do all acts necessary in order to file such forms with the U.S. Securities
and Exchange Commission, any securities exchange or national association,
the Company and such other person or agency as the attorney-in-fact shall
deem appropriate.
The undersigned hereby ratifies and confirms all that said
attorneys-in-fact and agents shall do or cause to be done by virtue hereof.
The undersigned acknowledges that the foregoing attorneys-in-fact, in serving
in such capacity at the request of the undersigned, are not assuming, nor is
the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934 (as amended).
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms ID, 3, 4 and 5 with respect
to the undersigned's holdings of and transactions in securities issued by
the Company, unless earlier revoked by the undersigned in a signed writing
delivered to the Company and the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 15th day of December, 2014.
Signature: /s/ Kathy Ordonez
Name: Kathy Ordonez