Material-Locking Chip/Substrate Connections
Tresky’s Ultrasonic Bonder allows materials to be bonded together without the use of adhesives, screws or other mechanical fasteners. The process uses ultrasonic vibrations to melt and then reliably bond the two materials to be joined
High-Precision Connection Technology for Temperature-Sensitive Components
Ultrasonic bonding is a bonding process for producing an electrically conductive and mechanically material bond between a chip and a substrate. In the friction welding process, pressure (bonding force) and ultrasonic vibration (friction) are used to create an electrically conductive contact. The ultrasonic energy is applied when the chip is placed by the bonding head.
Temperature-sensitive components or components that are difficult to heat can be bonded in this way by ultrasonic bonding. If heat is also used as a support, this is known as thermosonic bonding. The effectiveness of ultrasonic bonding is determined by several variable parameters, such as bonding force, ultrasonic power, frequency and bonding time, which play a crucial role in ensuring the quality and reliability of the connections made.
Added Values
Cycle Time Optimization
Ultrasonic bonding allows shorter bonding times to be implemented due to the elimination of preheating time
High Power Density
Ultrasonic bonding enables the production of high-performance components with high power density.
Low Thermal Load
The process generates a lower thermal load compared to conventional bonding methods. This can reduce material stress on semiconductor components.
Reliability
Connections made by ultrasonic bonding are reliable and have low failure rates. This is critical to the quality and durability of electronic components.
Versatility
Ultrasonic bonding can be used with a wide range of materials and chip types, increasing its versatility in various applications.
No Joining Materials
For example, in radio frequency (RF) applications, adhesive or solder joints are often ruled out because they radically degrade signal quality. Ultrasonic bonding creates a direct connection without a connecting layer.
Miniaturization
Ultrasonic bonding enables the miniaturization of electronic components and thus contributes to the development of compact and powerful electronic devices.
Variable Parameters for Ultrasonic Bonding are
- Bond force (pressure)
- Ultrasonic power (energy)
- Frequency (vibration)
- Bonding time