EV Group receives multiple orders for GEMINI FB XT fusion bonder for 3D chip stacking production applications

EV Group (EVG), a supplier of wafer bonding and lithography equipment for the MEMS, nanotechnology and semiconductor markets, today announced that it has received multiple orders for its GEMINI FB XT automated fusion wafer bonders from multiple leading device manufacturers. The GEMINI FB XT offers wafer-to-wafer alignment accuracy, customizable pre- and post-processing configurations with faster handling and improved process flows that increase throughput by up to 50 percent compared to the previous-generation platform, as well as integrated metrology to maximize yields and productivity in high-volume manufacturing (HVM). These latest orders for the GEMINI FB XT system will support several leading-edge HVM applications, including 3D stacked image sensors, memory stacking, and die partitioning for next-generation 3D system-on-chip (SoC) devices.

GEMINI FB XT Automated Production Fusion Bonding System

GEMINI FB XT Automated Production Fusion Bonding System

Vertical stacking of devices has become an increasingly viable approach to driving continuous improvements in device density and performance without the need for increasingly costly and complex lithography processing. Wafer-to-wafer bonding is an essential process step to enable 3D stacked devices. However, tight alignment and overlay accuracy between the wafers is required to achieve good electrical contact between the interconnected devices on the bonded wafers, as well as to minimize the interconnect area at the bond interface so that more space can be made available on the wafer for producing devices.

“These latest orders for our GEMINI FB XT system from multiple leading manufacturers reflect the fact that our most advanced fusion bonding platform meets critical production requirements for a variety of 3D chip stacking applications, and further demonstrates our leadership in fusion bonding,” stated Hermann Waltl, executive sales and customer support director at EV Group. “Unparalleled wafer-to-wafer alignment accuracy supports IC manufacturers’ efforts to move wafer stacking upstream from back-end-of-line (BEOL) and mid-end-of-line (MEOL) applications to front-end-of-line (FEOL) processing where they can integrate more functionality into their product at the wafer level and further drive down manufacturing costs. The GEMINI FB XT has proven to fulfill the most stringent compatibility requirements and standards of front-end fabs. It also combines the capabilities necessary to bring new bonding technologies, like hybrid bonding for CMOS image sensors, into high-volume production. It is a true testament to our Triple-i philosophy of invent, innovate and implement.”

Leveraging EVG’s XT Frame platform and an equipment front-end module (EFEM), the GEMINI FB XT automated production fusion bonding system is optimized for ultra-high throughput and productivity. It incorporates EVG’s proprietary SmartView NT face-to-face aligner to achieve wafer-to-wafer overlay alignment accuracy below 200 nm (3 sigma), which leads the industry in performance and is essential to enabling 3D integration. In addition, the system can accommodate up to six pre-and post-processing modules for surface preparation, conditioning and metrology steps―such as wafer cleaning, plasma activation, alignment verification, debonding (allowing pre-bonded wafers to be separated automatically and re-processed if necessary) and thermo-compression bonding. This enables the GEMINI FB XT to support fully automated and integrated wafer loading, alignment, bonding and unloading of bonded wafers in HVM environments.

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