Intel's 65 nm yields already at 90 nm level

Hillsboro (OR) - Intel's business model breaks down simply to build more chips at higher profitability each quarter. A big portion of that profitability comes from production yield - so it's no surprise that Intel throws lots of resources at improving its CPU manufacturing long before mass-production ramps. The upcoming 65 nm generation already has reached yields of a mature chip, the company claims.

It's no secret anymore that Intel will introduce a range of processors that will showcase the firm's 65 nm production process. Smaller structures - which includes gate lengths of 35 nm in Intel's 65 nm processors - allow semiconductor firms to squeeze more units on one wafer and, theoretically, increase production output, efficiency and profit. However, smaller structures also get more complex from generation to generation and require enormous investments and expensive approaches to achieve high yield rates of finished and functional products.

Intel's Technology and Development Group (TD) is responsible for finding errors and getting them fixed. If a problem is reported, there are engineers who often will have to find that one individual transistor that is causing the problem, describing the issue to the designer who then is able to correct it. While testing is largely automated and the general problem usually hints to a certain area into a chip, the sheer amount of transistors - 1.7 billion in the future Itanium 2 CPU - create a perfect needle in a haystack problem.

It all comes down to understand and control a material in a certain environment as much as possible. "There is a statistical amount variation that we need to control," he said. Complete control would be simply impossible, according to Kuhn, but his group aims to "control an issue until it becomes a non-issue."

TOPICS

Tom's Hardware is the leading destination for hardcore computer enthusiasts. We cover everything from processors to 3D printers, single-board computers, SSDs and high-end gaming rigs, empowering readers to make the most of the tech they love, keep up on the latest developments and buy the right gear. Our staff has more than 100 years of combined experience covering news, solving tech problems and reviewing components and systems.