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On the investigation of the "anode side" SuperJunction IGBT design concept
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Antoniou, M., Lophitis, Neophytos, Udrea, Florin, Bauer, Friedhelm, Vemulapati, Umamaheswara Reddy and Badstuebner, Uwe (2017) On the investigation of the "anode side" SuperJunction IGBT design concept. IEEE Electron Device Letters, 38 (8). pp. 1063-1066. doi:10.1109/LED.2017.2718619 ISSN 0741-3106.
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Official URL: http://dx.doi.org/10.1109/LED.2017.2718619
Abstract
In this letter, we present the “anode-side” SuperJunction trench field stop+ IGBT concept with drift region SuperJunction pillars placed at the anode side of the structure rather than the cathode side. The extent of the pillars toward the cathode side is shown to pose a tradeoff between fabrication technology capabilities (and cost) versus the device performance, by extensive TCAD simulations. The proposed device structure simplifies the fabrication requirements by steering clear from the need to align the cathode side features with the SuperJunction pillars. It also provides an extra degree of freedom by decoupling the cathode design from the SuperJunction structure. Additionally, the presence of SuperJunction technology in the drift region of the “anode-side” SJ Trench FS+ IGBT results in 20% reduction of ON-state losses for the same switching energy losses or, up to 30% switching losses reduction for the same ON-state voltage drop, compared with a 1.2-kV breakdown rated conventional FS+ Trench IGBT device. The proposed structure also finds applications in reverse conducting IGBTs, where a reduced snapback can be achieved, and in MOS-controlled thyristor devices.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
| Journal or Publication Title: | IEEE Electron Device Letters | ||||||
| Publisher: | IEEE | ||||||
| ISSN: | 0741-3106 | ||||||
| Official Date: | 22 June 2017 | ||||||
| Dates: |
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| Volume: | 38 | ||||||
| Number: | 8 | ||||||
| Page Range: | pp. 1063-1066 | ||||||
| DOI: | 10.1109/LED.2017.2718619 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
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