Manufacturing Wafer Fabrication We manufacture our products using standard CMOS process techniques. The standard nature of these processes permits us to engage independent silicon foundries to fabricate our integrated circuits. By subcontracting our manufacturing requirements, we are able to focus our resources on design and test applications where we believe we have greater competitive advantages. This strategy also eliminates the high cost of owning and operating semiconductor wafer fabrication facilities. Our operations and quality engineering team closely manages the interface between manufacturing and design engineering. While our design methodology typically creates a smaller than average die for a given function, it also generates full-custom integrated circuit designs. As a result, we are responsible for the complete functional and parametric performance testing of our devices, including quality. We employ a fully staffed operations and quality organization similar to that of a vertically integrated semiconductor manufacturer. We also arrange with our foundries to have online work-in-progress control. Our approach makes the manufacturing subcontracting process transparent to our customers. We depend on five independent foundry subcontractors located in Asia to manufacture substantially all of our products. Our key silicon foundries are Taiwan Semiconductor Manufacturing Corporation in Taiwan, Chartered Semiconductor Manufacturing in Singapore, Semiconductor Manufacturing International Corporation in China, Silterra Malaysia Sdn. Bhd. in Malaysia and United Microelectronics Corporation in Taiwan, several of which maintain multiple fabrication facilities in various locations. Any inability of one of our five independent foundry subcontractors to provide the necessary capacity or output for our products could result in significant production delays and could materially and adversely affect our business, financial condition and results of operations. While we currently believe we have adequate capacity to support our current sales levels, we continue to work with our existing foundries to obtain more production capacity, and we intend to qualify new foundries to provide additional production capacity. It is possible that from time to time adequate foundry capacity may not be available on acceptable terms, if at all. In the event a foundry experiences financial difficulties, or if a foundry suffers any damage to or destruction of its facilities, or in the event of any other disruption of foundry capacity, we may not be able to qualify alternative manufacturing sources for existing or new products in a timely manner. Our products are currently fabricated with .35 micron, quad layer metal; .22 micron, five layer metal; .18 micron, five and six layer metal; and .13 micron, six and seven layer metal structures. We continuously evaluate the benefits, on a product-by-product basis, of migrating to smaller geometry process technologies, and have begun to migrate certain products to 90 and 65 nanometer, seven to eight layer metal, feature sizes. Although our experience to date with the migration of products to smaller processes geometries has been predominantly favorable, we could experience difficulties in future process migration. Other companies in our industry have experienced difficulty transitioning to new manufacturing processes and, consequently, have suffered reduced yields or delays in product deliveries. We believe that the transition of our products to smaller geometries will be important for us to remain competitive. Our business, financial condition and results of operations could be materially and adversely affected if any such transition is substantially delayed or inefficiently implemented.

Assembly and Test Our wafer probe testing is conducted by either our independent foundries or independent wafer probe test subcontractors. Following completion of the wafer probe tests, the die are assembled into packages and the finished products are tested by one of our seven key subcontractors: ASAT Ltd. in Hong Kong; STATSChipac in Singapore, Korea, Malaysia and China; Siliconware Precision in Taiwan; United Test and Assembly Center in Singapore; Signetics in Korea; Amkor in Korea, Philippines and China; and Global Advance Packaging & Test in China. While we have not experienced material disruptions in supply from assembly subcontractors to date, we and others in our industry have experienced shortages in the supply of packaging materials from time to time, and we could experience shortages or assembly problems in the future. The availability of assembly and testing services from these subcontractors could be materially and adversely affected in the event a subcontractor

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