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Mintres and diamond: CITC’s ‘best’ friend in Thermal-Management

May 3 2021 – Efficient Thermal-Management is an ongoing challenge in electronics and opto-electronics where overheating is one of the most frequent causes of failure, resulting in damage to the device. As diamond is the best thermal conductor in the world it is a Thermal Engineer’s best friend. That is why CITC and diamond processor Mintres joined together in a Thermal Chip Assembly Project to see how the use of diamond improves the heat conduction and response of the chip.

People working at Mintres.

People working at Mintres. Picture credits: Patrick Bongartz.

Dutch High-Tech company and global supplier Mintres BV is specialized in forming, coating and assembling ceramic parts with advanced techniques. Xiao Tang, Co-founder & owner of Mintres BV underlines “In fact, processing diamond is what makes us unique and that is why we operate worldwide.” In Mintres and CITC’s shared project samples will be made using Mintres’ diamond interposer.

Martien Kengen, CITC’s Lab Manager, explains the assembly project further: “CITC will make samples with Mintres’ diamond interposer and compare these with reference samples, made by using conventional Ag sinter die attach material, to verify if the diamond interposer die attach will improve the heat conduction and response of the chip.” A key element of the project is a thermal test chip of TUDelft. This chip contains a heat generator and heat sensor to assess the thermal performance of the die attach material. Results will be compared by performing extensive tests.

Xiao emphasizes the benefits of the collaboration: “CITC and Mintres work in the same field, have a common background and language but also have their own specialty. CITC has experienced people, a practical attitude, short communication lines and is located nearby. With these benefits we are able to get faster results in innovative chip integration technology.” It is expected that Mintres’ diamond interposer die attach will improve the heat conduction and response of the chip. If the test results are positive a whitepaper with the results of the pilot study will follow in future.

Looking for research opportunities too? Contact Marco Koelink, Business Development Manager