Affymetrix to Webcast Presentation at U.S. Bancorp Piper Jaffray Health Care Conference

Affymetrix to Webcast Presentation at U.S. Bancorp Piper Jaffray
Health Care Conference 


SANTA CLARA, Calif., Jan. 20  /PRNewswire-FirstCall/ -- Affymetrix, Inc.
(NASDAQ:AFFX) today announced that Greg Schiffman, Senior Vice President and
CFO, will provide a company overview at the U.S. Bancorp Piper Jaffray Health
Care Conference in New York.  A live transmission of the presentation will take
place at 12:30 p.m. ET on Thursday, January 27, 2005.  An archived webcast will
be available for 30 days.

To access the live webcast or archived presentation, please go to
http://www.affymetrix.com/ and click on the "Investors" link.

About Affymetrix

Affymetrix is a pioneer in creating breakthrough tools that are driving the
genomic revolution. By applying the principles of semiconductor technology to
the life sciences, Affymetrix develops and commercializes systems that enable
scientists to improve the quality of life. The Company's customers include
pharmaceutical, biotechnology, agrichemical, diagnostics, and consumer products
companies, as well as academic, government, and other non-profit research
institutes. Affymetrix offers an expanding portfolio of integrated products and
services, including its integrated GeneChip(R) brand platform to address the
growing markets focused on understanding the relationship between genes and
human health. Additional information on Affymetrix may be found at
http://www.affymetrix.com/. 

DATASOURCE: Affymetrix, Inc.



CONTACT:  Doug Farrell, Vice President of Investor Relations, of

Affymetrix, Inc., [phone] 



Web site:  http://www.affymetrix.com/ 

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