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Wednesday, July 27 2022 - 10:00
AsiaNet
EV Group Achieves Die-To-Wafer Fusion And Hybrid Bonding Milestone With 100-Percent Die Transfer Yield On Multi-Die 3D System-On-A-Chip
ST. FLORIAN, Austria, July 27, 2022 /PRNewswire-AsiaNet/ --

-- Successful full-system die-to-wafer transfer at EVG's Heterogeneous 
Integration Competence Center(TM) demonstrates important step forward in 
achieving process maturity

EV Group (EVG), a leading provider of wafer bonding and lithography equipment 
for the MEMS, nanotechnology and semiconductor markets, today announced it has 
achieved a major breakthrough in die-to-wafer (D2W) fusion and hybrid bonding 
by successfully demonstrating 100-percent void-free bonding yield of multiple 
die of different sizes from a complete 3D system-on-a-chip (SoC) in a single 
transfer process using EVG's GEMINI(R)FB automated hybrid bonding system. Such 
an accomplishment had been a key challenge for D2W bonding until today, as well 
as a major hurdle to scaling down the cost of implementing heterogeneous 
integration. This important industry achievement was carried out at EVG's 
Heterogeneous Integration Competence Center(TM) (HICC), which is designed to 
assist customers in leveraging EVG's process solutions and expertise to 
accelerate the development of new and differentiating products and applications 
driven by advances in system integration and packaging.

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Leading-edge applications such as artificial intelligence (AI), autonomous 
driving, augmented/virtual reality and 5G all require the development of 
high-bandwidth, high-performance and low-power-consumption devices without 
increasing production cost. As a result, the semiconductor industry is turning 
to heterogeneous integration – the manufacturing, assembly and packaging of 
multiple different components or dies with different feature sizes and 
materials onto a single device or package – in order to increase performance on 
new device generations. D2W hybrid bonding is a key manufacturing technology 
for heterogeneous integration. Yet, as the ever-higher bandwidth needs of these 
devices drive newer packaging technologies, new developments in D2W hybrid 
bonding and metrology are also needed.

"Hybrid bonding requires substantially different manufacturing technologies to 
standard packaging processes, bringing it much closer to front-end 
manufacturing – especially in terms of cleanliness, particle control, alignment 
and metrology precision," stated Dr. Thomas Uhrmann, business development 
director at EV Group. "In line with our market leadership for W2W hybrid 
bonding, we continue to expand our D2W hybrid bonding solutions and optimize 
our equipment to support critical upstream and downstream processes, such as 
plasma activation and cleaning, in order to accelerate the deployment and 
maturity of D2W hybrid bonding. Between our established GEMINI FB, which has 
been configured for collective D2W integration flows and serving the needs for 
D2W bonding for several years already, the EVG(R)320 D2W die preparation and 
activation system for direct placement D2W bonding, which provides a direct 
interface with D2W bonders, and the EVG(R)40 NT2 overlay metrology system, 
which uses AI, feed-forward and feedback loops to further increase hybrid 
bonding yields, EVG provides a complete end-to-end hybrid bonding solution to 
accelerate the deployment of 3D/heterogeneous integration."

Since the interface in hybrid bonding is solid-state, with embedded metal pads 
to allow for face-to-face electrical connection of wafers and dies, D2W hybrid 
bonding requires similar tight cleanliness standards and manufacturing 
tolerances seen in front-end semiconductor manufacturing processes. This trend 
is also moving high-precision metrology into a more central role in controlling 
hybrid bonding alignment and process yield, which in turn is driving the 
integration of D2W bonding and metrology processes into one process line.

In addition, several different D2W hybrid bonding process flows are under 
evaluation today, each with unique advantages and requirements. Since its 
establishment two years ago, EVG's HICC has played a key role in helping 
customers and partners develop and optimize D2W hybrid bonding processes to 
address the unique needs of their given device design and application, taking 
into account various factors such as die size, die thickness, total stack 
height as well as interface considerations such as contact design and density. 
The HICC also features a state-of-the-art cleanroom with cleanliness standards 
on par with many leading-edge semiconductor fabs – enabling EVG to uniquely 
support the stringent requirements for D2W and W2W hybrid bonding process 
development.

"The HICC has firmly established itself as a preeminent central open-access 
incubator for novel process solutions such as D2W hybrid and fusion bonding," 
stated Markus Wimplinger, corporate technology development and IP director at 
EV Group. "State-of-the-art cleanrooms at EVG's headquarters in Austria, as 
well as in our subsidiaries in the US and Japan, guarantee that hybrid bonds 
can be developed with the highest possible yield. At the same time, our 
world-class development facilities outfitted with our extensive portfolio of 
fully automated process solutions offers process development that is as agile 
and close to series production as possible. Our expertise in diverse bonding 
technologies, as well as process integration and metrology, allows our 
customers and partners to develop differentiated total solutions that can be 
easily transferred to their production facilities."

For more information on EVG's Heterogeneous Integration Competence Center 
(HICC), please visit: 
https://www.evgroup.com/products/process-services/heterogeneous-integration-competence-center/.


About EV Group (EVG)
EV Group (EVG) is a leading supplier of equipment and process solutions for the 
manufacture of semiconductors, microelectromechanical systems (MEMS), compound 
semiconductors, power devices and nanotechnology devices. Key products include 
wafer bonding, thin-wafer processing, lithography/nanoimprint lithography (NIL) 
and metrology equipment, as well as photoresist coaters, cleaners and 
inspection systems. Founded in 1980, EV Group services and supports an 
elaborate network of global customers and partners all over the world. More 
information about EVG is available at www.EVGroup.com.

Contacts:
Clemens Schutte                              David Moreno
Director, Marketing and Communications       Principal
EV Group                                     Open Sky Communications
Tel: +43 7712 5311 0                         Tel: +1.415.519.3915
E-mail: Marketing@EVGroup.com                E-mail: dmoreno@openskypr.com

SOURCE EV Group
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