Onto Innovation Announces Third Customer has Qualified the Atlas® V System for Gate-All-Around Development and Pilot Production
Onto Innovation (NYSE: ONTO) has announced repeat orders for its Atlas® V optical critical dimension (OCD) platform, which addresses the advanced metrology needs of the gate-all-around (GAA) / nanosheet transistors. This next-generation technology is critical for improving device performance as the semiconductor industry transitions from FinFETs to GAA devices. The Atlas V system provides precise measurements of individual nanosheets, essential for optimizing performance metrics. Onto Innovation aims to enhance scalability and efficiency in the semiconductor sector.
- Received repeat orders for Atlas V optical critical dimension platform.
- Enables precise measurements of individual nanosheets, enhancing device performance.
- Addresses growing demand as the industry shifts to GAA/nanosheet transistors.
- None.
A model of a GAA device generated using Ai Diffract software, showing the inner spacer region (orange) (Graphic: Business Wire)
“The GAA device is extremely challenging for dimensional metrology. The device structure is significantly more complex than previous FinFET architectures, with a need to control each nanosheet channel separately to tighter control limits measuring much smaller changes,” said
As the industry migrates from FinFET transistors toward GAA (nanosheet) devices, key challenges directly impacting device performance have emerged. Gate length is defined at the selective source-drain etch, and it directly impacts drive current, which determines transistor performance. The inner spacer etch determines the source-to-gate capacitance, which also directly impacts transistor performance.
“For a GAA device, the physical properties of the ‘worst’ nanosheet will define key device performance metrics. In a stacked nanosheet device, the physical dimensions of each sheet need to be measured individually, especially after selective source drain recess etch and the inner spacer etch. Using conventional OCD (scatterometry) tools it isn’t possible to separate the signals related to each nanosheet due to high levels of parameter correlation, but the Atlas V system can overcome this challenge,” said
The Atlas V system, utilizing the latest improvements in spectrum signal-to-noise ratio (SNR), coupled with Onto Innovation’s Ai Diffract™ model-guided machine-learning modeling engine, enables the clean separation of signals related to each nanosheet. Individual nanosheet measurements, from an inline tool capable of measuring a single location in less than a second, facilitates a process control feedback loop that is critical for ramping yield to HVM levels.
Prior to the introduction of this revolutionary solution, the ability to conduct GAA metrology of buried, recessed nanosheets was only possible in HVM using slower and potentially damaging HV-SEM tools that are unable to differentiate individual nanosheets.
About
Our breadth of offerings across the entire semiconductor value chain helps our customers solve their most difficult yield, device performance, quality, and reliability issues.
Headquartered in
Additional information can be found at www.ontoinnovation.com.
Forward Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 (the “Act”) which include statements relating to Onto Innovation’s business momentum and future growth; the benefit to customers and the capabilities of Onto Innovation’s products and customer service; Onto Innovation’s ability to both deliver products and services consistent with our customers’ demands and expectations and strengthen its market position, Onto Innovation’s beliefs about market opportunities as well as other matters that are not purely historical data.
Source:
ONTO-I
View source version on businesswire.com: https://www.businesswire.com/news/home/20220713005032/en/
Investor Relations:
mike.sheaffer@ontoInnovation.com
Source:
FAQ
What recent orders has Onto Innovation (NYSE: ONTO) received?
How does the Atlas V platform benefit the semiconductor industry?
What technology is replacing FinFETs in semiconductor manufacturing?
Why are individual nanosheet measurements important in GAA devices?