Exhibit 99.6

ASML SETS TWO NEW LITHOGRAPHY MILESTONES AT SPIE

SAN JOSE, Calif., February 26, 2007 — ASML Holding NV (ASML) today announced that they will present record imaging results for immersion and extreme ultraviolet (EUV) technologies during SPIE Microlithography 2007. ASML will show two sets of breakthrough lithography results at the annual conference including 37-nm dense lines produced on the TWINSCAN™ XT:1900i, and both 32-nm dense lines and 32-nm dense contact holes from ASML full field EUV Alpha Demo Tools (ADT).

“Our customers require new technologies to get them beyond the 45-nm node,” said Martin van den Brink, executive vice president marketing and technology at ASML. “The industry’s first full-field EUV results from a customer site, coupled with the best resolution achieved to date for immersion demonstrate how our technologies continue to support our customers and their respective roadmaps.”

The industry adoption of immersion lithography and ASML’s leadership in advanced exposure technologies is proven by more than 36 immersion systems shipped by ASML. ASML’s TWINSCAN XT:1700i immersion scanner is now ramping for production at customer sites. ASML’s 37-nm results were accomplished on the TWINSCAN XT:1900i. This next generation immersion system features the same advanced catadioptric lens design as the XT:1700i, but with better resolution capability due to the higher numerical aperture of 1.35. The throughput has increased to 131 wafers per hour.

In addition to the immersion results, ASML will also present 32-nm dense lines and 32-nm dense contact holes using EUV lithography. This technology still promises to give the most cost-effective and extendible option for production at the 32-nm node and beyond. ASML was the first to ship full field EUV systems to customers, and currently has orders for three EUV pre-production systems. The first shipments are planned for 2009.

About ASML

ASML is the world’s leading provider of lithography systems for the semiconductor industry, manufacturing complex machines that are critical to the production of integrated circuits or chips. Headquartered in Veldhoven, the Netherlands, ASML is traded on Euronext Amsterdam and NASDAQ under the symbol ASML.

Media Relations Contacts
Angelique Paulussen — Corporate Communications — +31 40 268 6572 — Veldhoven, the Netherlands

Investor Relations Contacts
Craig DeYoung — Investor Relations — +1 408 383 4005 — Tempe, Arizona
Franki D’Hoore — Investor Relations — +31 40 268 6494 — Veldhoven, the Netherlands