Pads & Strips
Bond pads, precious metal strips, and roll clad strips provide advanced material solutions for reliable electrical connections in modern electronics. Designed for efficient bonding, conductivity, and heat management, they combine optimized material properties with high mechanical stability to meet demanding performance and miniaturization requirements.
Heraeus AlSi:Pads – solderable and adhesive bond pads
Heraeus bond preforms make circuit board designs more reliable and flexible. When soldered onto PCBs and ceramic hybrids, they allow for the automated application of additional and reliable bond isles.
About Bond Pads
Bond pads are characterized by excellent electrical and thermal conductivity and enable complex functionalities as well as a high degree of design flexibility in extremely compact spaces. Owing to these properties, they are primarily used in the automotive and high-end segments, where increasing requirements and ongoing miniaturization play a central role.
Take advantage of customer-specific consultation to identify the optimal configuration and material combination for your application.
Advantages
Our solderable and adhesive bond preforms offer a particularly high level of conductivity with optimal use of space.
Your benefits:
- Excellent electrical and thermal conductivity
- Highest robustness of the bonding connection
- Bondable with Al thick wire, AlSi thin wire or gold wire
- Optimal compatability with all solderable and adhesive surfaces
- Easy and reliable processing by pick-and-place
- Highest quality thanks to fully automated manufacturing equipment and 100% camera inspection
- Freedom of design even within the smallest space
- Compliance with legal regulations: All bond pads are available in RoHS compliant versions and may be used with both lead-containing and lead-free solders.
Our service for you:
Together we can develop the best possible solution for your application.
- We offer you a broad set of standard dimensions and material combinations. However, we also adapt both perfectly to your customer specific requirements.
- Our experts advise you individually, always bearing your requirements in mind.
- In our Technology Center we use different methods to carry out extensive material tests for you.
Applications
Heraeus bonding pads are used to connect bond elements on PCBs and ceramic hybrids. The mono-metal connection with Al wires has been proven worldwide in millions of cars and high-end applications.
- Electronic circuits for LEDs
- Position sensors
- Power modules
- Turbochargers
- Connecting elements on circuit boards
Product Properties & Technical Data
Materials:
- Base metal: CuSn6
- Bonding side: AlSi1, Ag, Cu
- Solder connection / adhesive side: Sn, Ag, …
- Wire bondable with: Al, Au, Ag, Cu
We process further material combinations for you upon request.
Dimensions:
We mass produce the following standard dimensions (very good availability):
- 0.2 x 1.8 x 1.8 mm
- 0.5 x 1.8 x 1.8 mm
- 0.6 x 0.8 x 1.6 mm
- 0.8 x 1.8 x 1.8 mm
- 0.8 x 1.8 x 4.2 mm
- 0.8 x 2.0 x 2.0 mm
- 0.8 x 2.8 x 2.8 mm
Contact us for other, customized dimensions.
Packaging Information:
- Tape and reel packing according to DIN EN 60286-3 and EIA standard
- Other options possible
Material Properties
Find the right material for your product in our material database.
Precious Metal Alloy Strips
Rolled precious metal alloy strips are characterized by their high resistance to corrosion and their excellent mechanical properties.
About Precious Metal Strips
Precious metal strips are used as a source material for contact parts in medical, automotive, and semiconductor applications. They are processed into components such as battery contacts, sealing strips, sliding contacts, and probe needles for semiconductor wafer testing, tailored to specific technical requirements. For such high-performance applications, precious metal strips are the material of choice, with cost efficiency supported through smart production methods such as selective plating.
Advantages
Precious metal strips have significant advantages compared to other non-precious materials:
- Highly resistant to corrosion
- Excellent electrical conductivity
- Good mechanical properties
- High degree of reproducibility of the desired material properties
- Reduction of costs by selective application of precious metals
- Manufactured according to your individual requirements
In order to guarantee uniformly high quality, we manufacture in accordance with international standards, such as ASTM B540 for Hera 648.
Applications
Precious metal strips are used as source material for contact parts in the medical field, as well as in the automotive and semiconductor industries, for example as
- Battery contacts in hearing aids
- Probe needles for semiconductor wafer testing
- Switching contacts
- Brushes in electric motors and wind power generators
- Plug-in connectors for safety components in the automotive industry
- Plug-in connectors for industrial applications, e.g. white goods
- Sealing elements for lambda probes in the automotive industry
- Pressure contact for supply technology
Product Properties & Technical Data
Product Properties & Technical Data
- Good elastic properties
- High conductivity
- Corrosion resistant
- Cost savings through lower precious metal content
- Highly ductile
- Highly wear resistant
Material Properties
Find the right material for your product in our material database.
Heraeus AlSi:Bond – Roll Clad Strips
Electronic components have to handle a steadily increasing amount of functions in the tiniest of spaces. At the same time, power transmission must work optimally at the interfaces and the heat must be dissipated quickly and efficiently.
About Roll Clad Strips
Roll‑clad strips enable high functional integration in minimal space while ensuring efficient power transmission at interfaces and rapid, effective heat dissipation. The combination of thick wire, bonding ribbons, and AlSi roll‑clad materials allows flexible thermal and electrical connections with broad process windows. Carefully matched material systems can be tailored to specific application requirements, meeting high technical demands such as increasing surface cleanliness.
Rely on specialist expertise in roll‑clad materials to address your demanding technical challenges. Engage with the team to explore solutions tailored to your application.
Advantages
Whenever materials reach their limits due to physical or chemical properties, roll clad strips from Heraeus could be your solution. The combination of different materials unites the advantages of each material in a multi-layer system.
You therefore enjoy the benefits of all materials used. With our broad materials and process portfolio and our expertise, we ensure that our product is a perfect match for your customer-specific requirement.
Your benefits:
- Aluminium wire bonding in a mono-metal system
- Aluminium-silicon surface enables a large bonding process window, in particular when compared to electroplated bond surfaces
- High-performance for strong currents
- Robust for high-end applications
- Highest reliability – experience since 1978, proven in millions of cars
- Optimal material properties due to the combination of matched materials
- Wide range of design possibilities with regard to the geometrical arrangement of the materials used
- A high surface cleanliness can be reached due to optimized manufacturing processes
- Compliant with legal regulations, including Reach and RoHS conformity
Our service for you:
- We invest in your innovation with our research projects.
- Experienced engineers and developers offer you customized advice regarding the design as well as the selection of materials and technologies.
- In our Technology Center we use different methods to carry out extensive material tests for you.
Applications
The fields of application for roll clad strips are extremely diverse. They are used for the assembly and packaging technology in the area of electronic components.
Power electronics in industrial use:
Our roll clad strips meet the highest demands in power electronic modules. In the industry, these modules are used, for example, in electric drive systems, as inverters, or for energy supplies:
- Trains
- Electric industrial vehicles (e.g. motor drives for forklifts)
- Renewable energies (inverters for wind, water, and sun)
- Electric power substations
- Ships (motor drive, steering, energy supply)
- Elevators and escalators
Automotive (control devices and sensors):
- Engine management (Engine Control Units ECU)
- Transmission controllers
- Braking, steering and stability systems (ABS, ESP, EPS / EPAS)
- Pressure sensors (power brakes, differential pressure for air ducts and exhaust emission, airflow meters)
- Power electronic modules for the electrification of the drive train (electric and hybrid vehicles)
- Alternator control unit
- Bi-material terminal for aluminium cabling within the vehicle
Communications:
- Radio frequency antenna modules for mobile communication
Product Properties & Technical Data
Carrier materials:
- Pure copper (e.g. PHC-Cu)
- CuSn alloys
- CuBe2
- CuFe2
- Steel (e.g. 1.4301)
- Aluminium and its alloys
- Various special alloys (e.g. Kovar, Invar)
- CuNiSi
Surface finishing:
- Precious metal alloys
- Copper and its alloys
- Nickel
- Tin
- Aluminium
- Aluminium-Silicon
- Stainless steel
Other material combinations upon request.
Coating processes:
- Onlay-cladding
- Overlay-cladding
- Inlay-cladding
Material Properties
Find the right material for your product in our material database.
