CoWoS / SoIC Advanced Packaging Bond Tool Localization Case Study
Nanometer-Level Precision Enhancement and Cost Optimization
With the rapid advancement of advanced packaging technologies such as CoWoS, SoIC, and 3D IC, the semiconductor industry has placed increasingly stringent demands on the precision, stability, and thermal control performance of Die Attach Bond Tools. Traditionally, high-end Bond Tools have relied heavily on original suppliers, resulting in long lead times, high costs, and supply chain dependencies. In addition, conventional metallic materials are no longer sufficient to meet the nanometer-level precision and thermal stability requirements of advanced SoIC packaging processes.
To help customers reduce supply chain risks and strengthen manufacturing independence, Zhanyang successfully developed localized Bond Tool manufacturing capabilities and high-precision machining technologies, establishing a reliable domestic supply source for critical semiconductor components used in advanced packaging applications.
Process Pain Points and Engineering Challenges
In CoWoS and SoIC advanced packaging processes, the Bond Tool is a critical component in the Die Attach process. Its flatness, parallelism, and thermal stability directly impact die bonding quality and overall packaging yield. However, customers have long faced challenges associated with heavy reliance on imported equipment and OEM consumables, resulting in high procurement costs, extended lead times, and increased supply chain risks.
As SoIC and 3D stacking technologies continue to evolve, conventional metallic materials are no longer capable of meeting the stringent requirements for ultra-high precision and minimal thermal deformation. Bond Tool specifications now demand:
β Flatness: ± 1.0 μm
β Parallelism: ± 1.5 μm to ± 2.0 μm
Future advanced packaging processes will require a gradual transition toward nanometer-level precision. Traditional supply models and machining technologies are becoming increasingly insufficient to support the mass production demands of next-generation advanced packaging applications.
Solution
To overcome the precision limitations and supply chain challenges in advanced packaging, Zhanyang implemented a Bond Tool Localization Strategy, successfully establishing 100% Taiwan-based manufacturing and supply capability. The company has become a qualified supplier within the advanced semiconductor packaging supply chain, with its Bond Tools already deployed in leading packaging facilities.
To meet the requirements of different packaging processes, Zhanyang adopted high-performance materials tailored to each application:
β CoWoS Process: M390 High-Hardness Tool Steel
β SoIC Process: Aluminum Nitride (AlN) Ceramic
These advanced materials effectively overcome the thermal stability and precision limitations associated with conventional metallic materials.
In addition, Zhanyang introduced Nano Precision Machining technologies, integrating ultra-precision grinding, micro-machining, and advanced GD&T (Geometric Dimensioning & Tolerancing) control to achieve:
β Flatness: ± 1.0 μm
β Parallelism: ± 1.5 μm to ± 2.0 μm
The company continues to advance toward nanometer-level precision to support future requirements in 3D stacking and high-density packaging applications.
Process Application
The localized Bond Tool solution is primarily applied in:
β CoWoS Advanced Packaging
β SoIC 3D Stacking Processes
β Die Attach Bonding Processes
β Shibaura and BESI Advanced Packaging Equipment
These applications represent critical core component technologies within advanced semiconductor packaging.
Achievements
Following the implementation of localized Bond Tool manufacturing and high-precision machining technologies, the following achievements were successfully realized:
β Successful localization of Bond Tool production and supply
β Precision performance meeting international equipment manufacturer standards (micron-level accuracy)
β Support for mass production requirements in CoWoS and SoIC advanced packaging processes
β Improved process stability and long-term operational reliability
β Established development capability for nanometer-level precision machining
This project effectively reduced long-term dependence on imported critical components for advanced packaging applications.
Customer Benefits
Through this Bond Tool localization project, customers gained several significant advantages:
Cost and Lead Time Optimization
β Reduced dependence on imported components
β Significantly shortened lead times
β Lowered procurement costs
Process Advancement
β Supports CoWoS, SoIC, and 3D IC packaging technologies
β Meets the requirements of high-density and high-precision packaging processes
Supply Chain Security
β Established a reliable Taiwan-based supply source
β Reduced risks associated with global supply chain disruptions
Enhanced Technological Competitiveness
β Access to nanometer-level machining capabilities
β Strengthened advanced packaging localization capabilities
β Improved competitiveness in AI, High-Performance Computing (HPC), and advanced semiconductor markets
Case Study Summary
This project successfully overcame the challenges of precision, material performance, and supply chain dependency in advanced packaging through Localized Bond Tool Manufacturing and Nano Precision Machining technologies.
By enhancing process stability and packaging yield in CoWoS and SoIC applications, Zhanyang Precision has established a reliable domestic supply capability for critical semiconductor components and has become a trusted technology partner in advanced packaging and ultra-precision manufacturing.
