Karen Heyman

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Karen Heyman is a technology editor at Semiconductor Engineering.

Author's Latest Posts

Bump Reliability is Challenged By Latent Defects
By Karen Heyman - 07 Feb, 2023 - Comments: 0

Thermal stress is a well-known problem in advanced packaging, along with the challenges of mechanical stress. Both are exacerbated by heterogenous integration, which often requires mingling materials with incompatible coefficients of thermal expansion (CTE). Effects are already showing up and will likely only get worse as package densities increase beyond 1,000 bumps per chip. “You comb... » read more

Week In Review: Semiconductor Manufacturing, Test
By Karen Heyman - 03 Feb, 2023 - Comments: 0

Imec released its semiconductor roadmap, which calls for doubling compute power every six months to handle the data explosion and new data-intensive problems. Imec named five walls (scaling, memory, power, sustainability, cost) that need to be dismantled. The roadmap (below) stretches from 7nm to 0.2nm (2 angstroms) by 2036, and includes four generations of gate-all-around FETs followed by thre... » read more

Week In Review: Semiconductor Manufacturing, Test
By Karen Heyman - 27 Jan, 2023 - Comments: 0

Starting in 2025, SEMICON West will move to Phoenix for a five-year annual rotation. And in 2024, it will shift dates from July to October. This year’s conference will still take place July 11 to 13 at the Moscone Center. Phoenix will first host SEMICON West on October 7-9, 2025. Thereafter, it will be held at the Moscone Center in San Francisco on the alternating years and over the long term... » read more

Week In Review: Semiconductor Manufacturing, Test
By Karen Heyman - 20 Jan, 2023 - Comments: 0

Dutch tech industry group FME called for the European Commission to draft a position on whether and how to restrict computer chip technology exports to China, saying "more unified and powerful action" was needed from Europe, according to Reuters. Meanwhile, Dutch Prime Minister Mark Rutte said he saw gradual progress in talks with the U.S. over potential new restrictions on exporting chip-makin... » read more

Week In Review: Semiconductor Manufacturing, Test
By Karen Heyman - 13 Jan, 2023 - Comments: 0

Global semiconductor sales hit $45.5 billion during the month of November 2022, according to SIA’s January announcement. Year-over-year sales increased in November in the Americas (5.2%), Europe (4.5%), and Japan (1.2%), but decreased in Asia Pacific/rest of world (-13.9%) and China (-21.2%). Month-to-month sales were down across all regions. The United States, Mexico and Canada vowed to... » read more

Will Floating Point 8 Solve AI/ML Overhead?
By Karen Heyman - 12 Jan, 2023 - Comments: 2

While the media buzzes about the Turing Test-busting results of ChatGPT, engineers are focused on the hardware challenges of running large language models and other deep learning networks. High on the ML punch list is how to run models more efficiently using less power, especially in critical applications like self-driving vehicles where latency becomes a matter of life or death. AI already ... » read more

Week In Review: Semiconductor Manufacturing, Test
By Karen Heyman - 06 Jan, 2023 - Comments: 0

TSMC is in advanced talks with key suppliers about setting up its first potential European plant in Dresden, Germany, according to Nikkei Asia. The company held a 3nm volume production and capacity expansion ceremony at its Fab 18. TSMC also is building 3nm capacity at its Arizona site, as well as opening a global R&D Center in the Hsinchu Science Park in the second quarter of 2023, to be ... » read more

Week In Review: Semiconductor Manufacturing, Test
By Karen Heyman - 22 Dec, 2022 - Comments: 0

SEMI , SEMI Europe and European Commission representatives, in consultation with semiconductor industry stakeholders, proposed initiatives to overcome the skills shortage in Europe’s microelectronics industry: Create an industry image campaign to raise public awareness on how technology is shaping the future, and how workers can establish careers in the semiconductor industry. Remove ... » read more

Week In Review: Semiconductor Manufacturing, Test
By Karen Heyman - 16 Dec, 2022 - Comments: 0

The CHIPS Act sparked $200 billion in private investments for U.S. semiconductor production, including 40 new semiconductor ecosystem projects, according to SIA. China is working toward self-sufficiency, with plans to invest more than 1 trillion yuan ($143 billion) to support domestic semiconductor production, according to Reuters. Arm said that Britain and the U.S. would not approve license... » read more

Variability Becoming More Problematic, More Diverse
By Karen Heyman - 12 Dec, 2022 - Comments: 0

Process variability is becoming more problematic as transistor density increases, both in planar chips and in heterogeneous advanced packages. On the basis of sheer numbers, there are many more things that can wrong. “If you have a chip with 50 billion transistors, then there are 50 places where a one-in-a-billion event can happen,” said Rob Aitken, a Synopsys fellow. And if Intel’s... » read more

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