Abstract
We report a method for improving heat exchange between cryo-cooled large-power-dissipation devices and liquid cryogen. Micro-machined monolithic heat sinks were fabricated on a high integration density superconducting Josephson device, and studied for their effect on cooling the device. The monolithic heat sink showed a significant enhancement of cooling capability, which markedly improved the device operation under large dc- and microwave power dissipation. The detailed mechanism of the enhancement still needs further modeling and experiments in order to optimize the design of the heat sink.
| Original language | English |
|---|---|
| Pages (from-to) | 18-21 |
| Number of pages | 4 |
| Journal | Progress in Superconductivity and Cryogenics (PSAC) |
| Volume | 19 |
| Issue number | 4 |
| DOIs | |
| State | Published - Sep 2017 |
| Externally published | Yes |
Keywords
- Cryogenic cooling
- Heat sink
- Josephson junction
- Micro-machining
- Superconducting device
