Power Electronic Stacks

Four key factors for your success


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When Time to Market Counts

“When time to market counts our customers use our state-of-the-art power converters and engineering expertise to be a step ahead of the competition when introducing new products to competitive markets...”

(Timo Gassauer, Product Marketing Manager)

We live in highly dynamic times, in which markets evolve rapidly and competition is global. SEMIKRON’s Power Electronic Stacks enable our customers to prosper in these markets and meet any challenge.

We are proud to present our comprehensive portfolio of power electronic assemblies that include the outstanding innovations we have achieved over a period of 40 years of successful stack design.

Our services are as multifaceted as our customers, highlighted by these four distinctive attributes: time to market, cost savings, global production and engineering experience. Our passion for power electronics and our commitment to high-performance design are the factors that make us your ultimate partner for value creation in the dynamic power electronics market.

Experience in Different Markets

With more than 100,000 stacks in the field, SEMIKRON is the global market leader for power electronic stacks. We provide stacks to the world’s leading electrical industries and over the years have gained vast experience in all relevant applications, each with their own specific constraints. Our expertise ranges from mature applications, like motor drives and renewable energy, to new markets, such as energy storage and DC grids.

On account of the high rate of product innovation, these markets are highly dynamic and involve a high level of risk. SEMIKRON’s all-around services for power electronic stacks enable companies to participate in these markets on time and with less risk.

SEMIKRON products are instrumental in providing energy savings through the efficient use of electrical energy.

Our expertise ranges

  • Motor drives
    Converters for all types of electric motors utilized in industry. SEMIKRON power electronic stacks help to maximize the efficiency in any 2- or 4-quadrant drive.
  • Wind energy
    Power stacks are used in converters and in the drives controlling the blade pitch. Almost one in two wind turbines in the world is equipped with SEMIKRON power modules and stacks.
  • Solar energy
    With the focus on cost and efficiency in photovoltaic systems, SEMIKRON supplies products ranging from medium power multi-string inverters to megawatt central inverters.
  • Car charger stations
    EV charging based on DC transmission to the electric vehicle requires extremely powerful semiconductors. Reliable and efficient SEMIKRON power stacks are boosting the distance expansion of e-mobility.
  • Energy storage
    High-performance energy storage systems are essential to ensure permanent grid stability, providing smoother integration of renewable energy sources into the grid. SEMIKRON supplies a variety of power stacks that are highly suitable for this application.
  • Urban transport equipment
    Electrical transportation applications – with their cyclic operating profile and continuous auxiliary supply for several years of operation – require a high degree of reliability of the drive systems.

Solutions for all Requirements

Power electronic stacks are assemblies that include the power semiconductor modules, gate driver, snubber capacitors, protection, DC-link capacitors and cooling.

Our product portfolio ranges from off-the-shelf platforms – with short lead times and delivered ready to install – to customized stacks with different levels of integration, from modules on heat sinks to fully integrated cabinets.

Product Lines

The SEMIKRON philosophy is to use proven standard platforms wherever possible, both for standardized products and customized designs. Costs and delivery times are reduced to a minimum.

Through the use of state-of-the-art technology we guarantee the highest possible performance of our power electronic stacks. The latest materials are available – such as wide-bandgap semiconductors and aluminum nitride DBC substrates – as well as special topologies, e.g. three-level or five-level inverters. SEMIKRON supplies a full range of power stacks designed to match – thanks to our dedicated engineering competency – the level of innovation that the application permits. Some of the latest examples of our stacks are based on the most recent advances in technology, enabling us to deliver the best results to our customers.

Four Key Factors for Your Success

The experience we have gained in over 40 years of high-performance stack design has reinforced the four essential ingredients needed for your success. In emerging markets, where new product innovation is essential, companies need to be nimble and have a fast time to market.

In global markets, multiple production locations play a vital role in ensuring rapid deployment to more than one country, while also meeting local demand and building customer relationships. Quality and cost control are crucial factors in the longterm success of any project. Finally, success in highly competitive markets is underpinned by superior technical capability. All of these four prerequisites are addressed by SEMIKRON’s power electronic stacks.

SEMIKRON Four Key Factors for Your Success

Time to market

Cost control

Global production

Engineering experience

Quality & efficiency

Time to Market

Success in today’s dynamic and fluid markets requires a fast time-to-market approach. Being late for a new product launch diminishes your impact and reduces your return on investment.

SEMIKRON accompanies its clients through the entire life cycle of their products, optimizing their business model and maximizing their results.

Reduce time

We have a huge portfolio of products consisting of more than 1,500 different stack designs that can be supplied either from stock or modified to meet your requirements.

Maximize profit

With an annual production capacity of more than 50,000 stacks and flexible production lines we are able to ramp up production very quickly. Fast deployment and quick ramp-up are available when the market demands a quick reaction.

Minimize investment & risk

Market uncertainties, production peaks and high R&D costs can diminish the attractiveness of projects. SEMIKRON helps to lower your risk with its standard products and flexible production lines while reducing the initial investment.

Prolong life cycle

In increasingly competitive markets, we work closely with our customers on continuously optimizing the product while reducing costs to get more out of the product and prolong the product life cycle.

Impact of a fast time to market in the product life cycle

Global Production

SEMIKRON’s global stack centres were set up in order to provide our customers with local added value for the purpose of fast development, rapid deployment and reliable mass production.

This unique network of stack centres, spread across four continents, provides on-site development and production support for both platforms and customized stacks.

Production & service


Global Competence

We regularly exchange and transfer know-how between our stack centres and transpose local expertise into global competence.

Thanks to this internal exchange of information and products, optimized, pre-qualified and field-tested stacks are available with very short lead times. Our customers profit from this exceptional experience our teams have acquired in developing our power stacks for the world-class leaders of industry.

Our contract manufacturing service supply customers who have quick ramp-up requirements for a large local or global market demand for which those customers do not have their own production resources or sufficient capacity.

Cost Control

By purchasing power electronic stacks, companies can limit their costs and investment in resources while still maintaining full control of their system. Our lean processes and operational reliability, coupled with a globally coordinated supply chain, ensure time and cost savings with power electronic stacks throughout the life cycle of our customer’s products.


Standardized production processes and our continuous improvement policy reduce material and administrative costs. We use a centralized and validated parts database with proven and qualified vendors.

Make or buy

Buying a stack can reduce your investment and overhead costs through the entire life cycle of your products from the development and manufacturing phase through to testing and after-sales service. Our qualified and standardized products reduce field failures and save costs.

Operational reliability

Every SEMISTACK design undergoes an arduous test regime in our quest for zero defect rates. A standardized qualification process guarantees a reliable product design. In addition our stack centres offer burn-in capability and custom-defined tests for enhanced levels of assurance.

Local production

Our global stack centres comply with standardized production processes, facilitating rapid knowledge exchange between centres, while enhancing the customer’s global reach and fulfilling compliance with any “local content” manufacturing requirements, eliminating the need for expensive production transfers.

Buy a stack / Build a stack

Engineering Experience

Our unparalleled experience in the stack business, coupled with direct access to our core semiconductor and driver technology, provide the most efficient and cost-effective designs to meet any requirements. Our applications engineers offer specific power solutions by adapting existing platforms or designing fully customized converters from new.

Practical expertise

SEMIKRON has outstanding expertise in all relevant applications. SEMIKRON brings know-how in semiconductor module development and power electronic stack manufacturing together with in-depth applications know-how, making us your ultimate partner in power electronics.


Our engineers use power stacks to evaluate new technologies, such as wide-bandgap materials and multilevel circuit topologies. This on going experience intrinsically flows into our customer designs, contributing further to optimized design efficiency and cost. To date, we have 1,500 different designs worldwide based on the latest technologies.

Custom designs

In addition to our range of qualified platforms, SEMIKRON also supplies custom stack designs that range from a device mounted on a heat sink through to a fully integrated stack. Starting from a basic idea or from a detailed specification, we design prototypes and series products to meet the most arduous requirements and quality standards.


Our team of industrial and applications engineers remain in close contact with customers not only during the development process but also throughout the product life cycle to guarantee a continuous exchange of information. We are committed to delivering first-class performance in every phase of our customer relationship.

Implementation / Prototype

When Time to Market Counts