Increasing performance in advanced semiconductors is becoming more difficult as chips become more complex. There are more physical effects to contend with, different use cases, and challenges in making memory go faster. In addition, aging effects that once were ignored are now becoming critical concerns. Steven Woo, fellow and distinguished inventor at Rambus, talks with Semiconductor Engineering about different factors that need to be considered up front to improve reliability as performance is increased, and what needs to be modeled to make it all work as expected.