Atmosphere Networks and MCMS Announce Strategic Partnership for Manufacturing.

Business/Technology Editors

CAMPBELL, Calif. and NAMPA, Idaho--(BUSINESS WIRE)--March 6, 2000

Atmosphere Networks, the leader in providing the on-ramps to the high-speed optical network, and MCMS, Inc., a leading electronics manufacturing services provider, today announced a strategic partnership for manufacturing services.

Under the agreement, MCMS will provide a broad range of prototype and volume manufacturing services to Atmosphere Networks, including responsibility for managing all Atmosphere products beginning in May 2000.

"We are excited to partner with Atmosphere Networks because of their strong growth and innovation within the optical networking access market," said Rob Subia, president and chief sales and marketing officer for MCMS. "The considerable synergy between Atmosphere Networks and MCMS, based on our mutual commitments to high quality, innovative technology designs and responsiveness to customers, will help provide strategic advantages to both of our companies."

"Choosing MCMS as our full-service electronics manufacturing partner enables Atmosphere Networks to efficiently manufacture and distribute our current product offerings worldwide," said Allen Adolph, vice president of operations at Atmosphere Networks. "Equally important, MCMS provides Atmosphere with the rapid response prototype facilities that are essential to quickly bringing new products to the marketplace, so we can respond to the evolving worldwide demand for service-enabling optical access networks."

MCMS has experience in providing engineering, manufacturing, and distribution services to a wide range of telecommunications companies, including many in high-growth stages similar to that of Atmosphere. Specifically, MCMS is known for its expertise in new product introduction, engineering services, complex board assembly, system level configuration and test, and worldwide order fulfillment. By partnering with MCMS, Atmosphere can rapidly respond to the ever-increasing demand for its products in a cost-effective and efficient way.

About MCMS

MCMS, Inc., provides a broad range of services for the manufacture of custom complex printed circuit board assemblies, memory modules and systems, including design, product engineering, procurement and material management, assembly, test engineering, quality assurance, and just-in-time delivery or end-order fulfillment. MCMS focuses its marketing efforts on original equipment manufacturers in the high-growth networking, telecommunications, and computer system industries that generally require custom board and system-level design, assembly, test, short manufacturing lead times at competitive pricing, and a high degree of quality and technology. ISO 9001 certified, MCMS has operations in Nampa, Idaho; Durham, North Carolina; Penang, Malaysia; Colfontaine, Belgium; and Monterrey, Mexico. MCMS information is available by visiting the company's Web site at www.mcms.com.

About Atmosphere Networks

Founded in 1997, Atmosphere Networks is the leading player in providing on-ramps to the optical network all the way to the doorstep of enterprise customers. Atmosphere enables telecommunications carriers to take full advantage of optical networks' capacities and offer their customers the most flexible voice-and-data service packages. With Atmosphere, carriers can to boost their competitiveness, revenues and market share while lowering their network costs by up to 75%, while enterprise customers can mix and match the voice, Internet and other data services they demand. The privately held company is backed by Benchmark Capital, Foundation Capital, Institutional Venture Partners (IVP), Bowman Capital, Volpe Brown Whelan & Company and other venture firms with proven track records in funding successful networking companies. For more information on Atmosphere Networks, visit the Web site at www.atmospherenet.com or atmospherenetworks.com.