Characterization Of HEMT Vias


The Zeta-Series optical profilers provide accurate measurement and automated analysis of high aspect ratio structures such as HEMT vias using non-destructive and high throughput metrology techniques.  Introduction Wide bandgap semiconductor materials are extremely attractive for use in power electronics, due to their performance capability at high temperature, power and frequency. Among wide... » read more

Week In Review: Semiconductor Manufacturing, Test


Nikkei Asia reports the U.S. is urging allies, including Japan, to restrict exports of advanced semiconductors and related technology to China. The U.S. holds 12% of the global semiconductor market, Japan has a 15% share, while Taiwan and South Korea each have about a 20% share. Some U.S. companies have called for other countries to adopt U.S.-style export curbs, arguing it is unfair for only A... » read more

Chip Industry Earnings: A Mixed Bag


Editor's Note: Updated the week of Oct. 31 and Nov. 7 for additional earnings releases. Although most companies reported revenue growth, this latest round of chip industry earnings releases reflected a few major themes: Lower future quarter guidance to varying degrees, due to the recent U.S. export restrictions related to China; Negative impact of the inflationary environment on corn... » read more

Week In Review: Semiconductor Manufacturing, Test


This week saw more fallout from U.S. export controls: SK hynix may consider selling its memory chip production facilities in China if recently imposed controls make it too difficult to continue operations there, according to Nikkei Asia. "As a contingency plan, we are considering selling the fab, selling the equipment or transferring the equipment to South Korea," said Kevin Noh, SK hynix ... » read more

Wafer Cleaning Becomes Key Challenge In Manufacturing 3D Structures


Wafer cleaning, once a rather mundane task as simple as dipping wafers in cleaning fluid, is emerging as one of the top major engineering challenges for manufacturing GAA FETs and 3D-ICs. With these new 3D structures — some on the horizon but some already in high-volume manufacturing — semiconductor wafer equipment and materials suppliers in the wet cleaning business are at the epicenter... » read more

Yield Is Top Issue For MicroLEDs


MicroLED display makers are marching toward commercialization, with products such as Samsung’s The Wall TV and Apple’s smart watch expected to be in volume production next year or in 2024. These tiny illuminators are the hot new technology in the display world, enabling higher pixel density, better contrast, lower power consumption, and higher luminance in direct sunlight — while consu... » read more

Bump Co-Planarity And Inconsistencies Cause Yield, Reliability Issues


Bumps are a key component in many advanced packages, but at nanoscale levels making sure all those bumps have a consistent height is an increasing challenge. Without co-planarity, surfaces may not properly adhere. That can reduce yield if the problem is not identified in packaging, or it can cause reliability problems in the field. Identifying those issues requires a variety of process steps... » read more

Week In Review: Semiconductor Manufacturing, Test


Micron selected Syracuse, New York as the site for its new megafab complex, which is expected to create 9,000 company jobs and 40,000 construction and supply chain jobs. President Biden called it “another win for America.” The chip manufacturing facility will be the nation’s largest, including a 7.2 million square foot complex and 2.4 million square foot of cleanroom. Site preparation wil... » read more

Enabling Test Strategies For 2.5D, 3D Stacked ICs


Improved testability, coupled with more tests at more insertion points, are emerging as key strategies for creating reliable, heterogeneous 2.5D and 3D designs with sufficient yield.  Many changes need to fall into place to make side-by-side 2.5D and 3D stacking approaches cost-effective, particularly for companies looking to integrate chiplets from different vendors. Today, nearly all of t... » read more

KLA Publishes 2021 Global Impact Report And Shares New Climate Goals


KLA is publishing its latest Global Impact Report, detailing progress of our environmental, social and governance (ESG) programs, results and commitments from the past year. Managing our ESG impact is an important part of our mission to advance humanity through devices and ideas that transform our world and help shape a better future for generations to come. “Our accomplishments in 2021 w... » read more

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