3. IKZ Winterschule


The Winter School will be held in English as an online event.


Layer transfer introduces a paradigm change in the way crystalline heterostructures could be synthesized. In contrast to established growth methods of epitaxial heterostructures which must oblige to matching conditions at the interface with respect to surface energies, lattice parameter and crystal symmetry, layer transfer allows in principle for the combination of any crystalline materials.

The potential to create novel artificial crystalline heterostructures has been demonstrated with 2-dimensional van der Waals (2D-vdW) materials such as graphene. New functional interfaces can be realized by combinations of different 2D-vdW-materials and by re-assembling layers in different ways, for exampleby introducing a twist angle between the layers. To make novel materials and heterostructures available to applications, demands scale-up and integration to existing fabrication lines. We will discuss the latest developments of integration of 2D-materials and functional oxides into Si-technology. Further, a wide range of state-of-the-art layer transfer, micro transfer printing and wafer bonding technologies will be covered.


Leibniz-Institut für Kristallzüchtung (Berlin)

Dr. Jens Martin

Tel. +49 30 6392 2857


Humboldt-Universität, Helmholtz Zentrum (Berlin)

Prof. Dr. Emil J. W. List-Kratochvil



RWTH Aachen University, AMO GmbH (Aachen)

Prof. Dr. Max Lemme



Lumiphase AG (Kilchberg, Switzerland)

Dr. Jean Fompeyrine



TH Wildau, Leibniz Institute for High Performance Microelectronics IHP (Frankfurt/Oder)

Prof. Dr. Andreas Mai



Fraunhofer Institute for Reliability and Microintegration IZM (Berlin)

Dipl.-Ing. (FH) Kai Zoschke



Dr. Jens Martin / Leibniz-Institut für Kristallzüchtung
Group manager „2D goes 3D” by Layer Transfer at IKZ. With a background in fundamental research of graphene and other 2D-materials, he currently focuses on process development of layer transfer for various materials including 2D-van der Waals materials and oxide perovskite layers.

Prof. Dr. Emil J. W. List-Kratochvil / Helmholtz Zentrum Berlin / Humboldt-Universität zu Berlin
Professor for Hybrid Devices at the Humboldt-Universität zu Berlin (HU) and head of a Joint Lab operated by HU and HZB. He works on printing processes for hybrid perovskite devices and 2D semiconductor/organic hybrid material systems and devices.

Prof. Dr. Max Lemme / RWTH Aachen University / AMO GmbH / Aachen
Holds the Chair of Electronic Devices at RWTH and is CEO of AMO GmbH. He is working on electronic, optoelectronic and nanoelectromechanical devices and sensors made from graphene and related 2D materials and their integration into silicon technology platforms.

Dr. Jean Fompeyrine / Lumiphase AG / Kilchberg / Switzerland
Head of Materials and Production at Lumiphase AG. Lumiphase is a swiss startup that develops a disruptive integrated photonic technology using thin crystalline BaTiO3 thin films. This technology will enable low-cost, high performance electro-optic modulation.

Prof. Dr. Andreas Mai / TH Wildau / Leibniz Institute for High Performance Microelectronics IHP
Professor „Micro- and Nanoelectronics“ at TH Wildau and head of the Technology Department at IHP. His focus is on developing silicon-based devices for analog applications, silicon photonics, and processing and integration of graphene in silicon technology compatible platforms.

Dipl.-Ing. (FH) Kai Zoschke / Fraunhofer Institute for Reliability and Microintegration IZM
Process Development Engineer and Group Manager „Wafer Level Packaging and 3D Process Integration” at IZM. His current projects are focused on vertical integration of systems based on logic- and memory- or sensor chips as well as transceivers and antennas.

Layer Transfer Technologies - From artificial crystals to novel applications

Wednesday, December 8       Layer Transfer of 2D-materials  
1:00pm – 1:20pm Welcome by Thomas Schröder, Director IKZ Thomas Schröder (IKZ)
1:25pm – 2:10pm* Electronic structure of 2D-vdWaals materials and heterostructures Jens Martin (IKZ)
2:10pm – 2:55pm* Exfoliation and layer transfer of 2D materials Emil List-Kratochvil (HZB, HU)
2:55pm – 3:40pm* Organic/2D hetero structures - basic properties and devices Emil List-Kratochvil (HZB, HU)
Thursday, December 9 Integration of novel materials to Si-technology  
1:00pm – 1:45pm* 2D/3D Heterostructure Devices Max Lemme (RWTH, AMO GmbH)
1:45pm – 2:30pm* Large Area Integration of 2D Materials - the European Experimental 2D Pilot Line       Max Lemme (RWTH, AMO GmbH)
2:30pm – 3:15pm* Challenges of integrating functional oxides in Si-technology Jean Fompeyrine (Lumiphase AG)
3:15pm – 4:00pm* BaTiO3 for integrated photonics: epitaxial oxides on the market Jean Fompeyrine (Lumiphase AG)
Friday, December 10 Micro transfer printing & Device-to-Device  
1:00pm – 1:45pm* Basics of adhesion & transfer printing Andreas Mai (TH Wildau, IHP)
1:45pm – 2:30pm* Applications for Micro-transfer printing Andreas Mai (TH Wildau, IHP)
2:30pm – 3:15pm* Permanent wafer-to-wafer-bonding Kai Zoschke (IZM)
3:15pm – 3:45pm* Temporary wafer bonding and handling of thin wafers Kai Zoschke (IZM)

* incl. 15min discussion
All times shown are CET (central european time)

Registration deadline: November 29, 2021

The Winter School is directed to the employees of the Leibniz-Institut für Kristallzüchtung as well as to employees of other institutions, especially students and PhDs.

Please register by email at winter.schoolikz-berlin.de, specifying your institution and position (e.g. student bachelor/master/field of study, PhD, scientist, etc.).

We will send the link to the Zoom sessions a few days before the event.


Participation fees:

Students and PhDs:    50 €
Academic researchers:                 250 €
Industrial employees:                                500 €

Scientific details:

Dr. Jens Martin
Ph:  +49 30 6392 2857

Organizational details:

Stefanie Grüber
Ph: +49 30 6392 3263