In brief
Gold wire bonding is the connection between the semiconductor die inside an LED chip and the package contacts, made with extremely fine gold wires. Gold conducts excellently, does not corrode and remains stable under heat and vibration – decisive for the service life, colour stability and failure rate of an LED video wall.
What is gold wire bonding?
Inside every LED chip, the actual semiconductor crystal must be electrically connected to the package terminals. With gold wire bonding, this is done via extremely thin gold wires – often thinner than a human hair. Gold is used because it conducts excellently, does not corrode, and remains stable in the long term under temperature and vibration.
Why gold and not copper?
Cheaper LEDs often rely on copper or aluminium wire. These materials are less expensive but are more prone to oxidation and material fatigue. Especially in continuous operation and under weather exposure – precisely where professional video walls operate – the quality of the bonding connection becomes apparent: in the form of pixel failures or colour drift after years.
What does this mean for your video wall?
WALED consistently relies on high-quality bonding processes for the chips used. The result is a noticeably longer lifespan, stable colours over many years, and a lower failure rate – the basis for the extended warranty on permanently installed systems.
- Higher conductivity and corrosion resistance
- Stable under temperature fluctuations and vibration
- Fewer pixel failures over the lifespan
- The foundation for durable outdoor and continuous operation
Note: This page was newly written for the new website, as the previous web presence did not include a dedicated page on this topic.
Frequently asked questions – Gold Wire Bonding
What is gold wire bonding in LEDs?
Inside every LED chip, the semiconductor die must be electrically connected to the package contacts. In gold wire bonding this is done with extremely fine gold wires, often thinner than a human hair.
Why gold instead of copper for LED bonding?
Cheaper LEDs often use copper or aluminium wire. These materials cost less but are more prone to oxidation and material fatigue. In continuous operation and under weather exposure this shows up after years as pixel failures or colour drift.
How does bonding affect an LED wall's service life?
High-quality bonding processes lead to a noticeably longer service life, stable colours over years and a lower failure rate. This is the technical basis for the extended warranty on fixed-installation WALED systems.
How do I recognise poor bonding in an LED wall?
Poor bonding rarely shows immediately but after years: individual pixels fail, colours drift apart, modules age at different rates. This is precisely why chip and bonding quality is a central selection criterion for fixed installations with a long service life.
Consulting and planning by WALED
WALED VIDEOWALLS GmbH, based in Duisburg, develops, supplies and installs LED video walls for fixed installation and rental – indoor and outdoor, throughout Germany. As a manufacturer for fixed installation and rental with 25 years of experience we plan your system from requirements analysis and 3D planning through to commissioning and maintenance. Reach us on +49 (0) 172 2844494 or via the contact form. Find the right configuration in minutes with the LED wall configurator.