Our Story



Hi, we're Heyday Integrated Circuits
5 years ago, we had a vision :
a world with safe and clean energy
...and we decided to focus on our field of expertise :
power electronics
That gave us our mission :
enabling the most efficient and safe power conversion
That means developing truly innovative technologies to drive the transition towards clean energies
We're getting started.
Want to join us?

The story behind Heyday


During his years of power system and semiconductor experiences, Joe was more and more aware of the technical and strategical advantages around good gate drive systems for MOS and wide-band gap FET`s. 

Meanwhile, Karl, a life-long friend and professor of electronics at UL (University of Limerick), was working with GaN switches.  He could see the gate driver shortcomings of products already on the market.  In 2014 Karl and Joe sat down for a coffee .....

Heyday was born

Their backgrounds in both in the power system and the semiconductor worlds, has been the bed rock of Heyday’s technology development. While these are similar fields, they are not the same and it is difficult to find experts with both faculties. The combination of both expertises mixed with a good deal of creativity and bold thinking were the driver (pun intended!) of the company’s direction and R&D efforts.

From then on, the team has been, and still is, growing quickly with motivated and smart people working together on technology, business development, applications, packaging, foundry management, customer support and more.

We're having fun innovating and learning together!



Our culture

At Heyday we believe that a shared company culture is a prerequisite to tackle today's challenges, expand our capabilities...and most important : to enjoy our work and keep the passion alive.
We commit to our mission 

(a world with safe and clean energy)

We solve our customer's problems and build long-term relationships
We embrace a changing world
We question the status quo
We prefer to fail rather than not trying
We are responsible and respectful people
We are Heyday’s best assets
We enjoy our work and are passionate about it
We know a better world starts with ourselves

Vision and culture applied

We aspire to give our customers
  • the best gate drivers
  • the best service and support (we’d love to be your super-heroes!) 
We hope that our clients:
  • understand & forgive that we sometimes experience growing pains
  • give us honest feedback to help us improve

Powertry in Motion!


Want to know more?

If you like what you see here, then we'd love to hear from you.