copper chip

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copper chip

A chip that uses copper rather than aluminum in the top metalization layers, which interconnect all transistors and components together. Copper provides better performance, because it has less resistance than aluminum. Resistance increases as the lines (tracks) get smaller. In order to accommodate ever-decreasing die sizes, materials with inherent less resistance are required. Copper might have been used earlier, but it diffused into the silicon until IBM discovered a way to prevent that from happening. IBM delivered the first copper-based microprocessors in 1998. See metalization layer.
References in periodicals archive ?
Microprocessors, the chips that process information, are headed for another boost in performance with the arrival of copper-based chips.
An expanded line of products for copper-based chips was also introduced during the quarter.
The Endura 300mm system supports the industry's widest array of metallization applications, including barrier/seed layers for copper-based chips, conductor and barrier films for aluminum-based devices, transistor and contact-level metals and barriers, and packaging applications such as under bump metallization and bondpads.
The state-of-the-art facility, equipped with a full complement of process, yield enhancement and automation technologies, can greatly speed customers' development and introduction of future faster, more powerful, sub-100-nanometer copper-based chips.
The Reflexion system's advanced monitoring technologies, such as iScan(TM), which measures remaining film thickness in real time, and FullScan(TM) endpoint detection which reads across the entire surface of the wafer, provide precise control of overpolishing and contribute to higher yields and excellent results on copper-based chips.
Many customers have standardized on the Producer for their mainstream, high-volume CVD applications, including dielectric films for copper-based chips.
The system's FullScan(TM) endpoint technology enables users to scan the entire wafer to precisely control overpolishing, contributing to higher yields and excellent results on copper-based chips.
In 1998, less than a year after announcing it had improved chip wiring by substituting more efficient copper for aluminum, IBM shipped the industry's first copper-based chips.
the world's leading supplier of etch systems to the semiconductor industry, is ramping shipments of its Dielectric Etch IPS(TM) Centura(R) system for the production of copper-based chips.