Patent ID: 11929365
Assignee: ROHM CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a semiconductor layer that has a first main surface at one side and a second main surface at another side and includes an active region;
a plurality of IGBT regions that are formed in the active region; and
a plurality of diode regions that are formed in the active region such as to be mutually adjacent to the plurality of IGBT regions; and
wherein when a total extension of boundary lines between the plurality of IGBT regions and the plurality of diode regions is represented by L, a total area of the plurality of diode regions is represented by SD, and a dispersion degree of the plurality of diode regions with respect to the active region is defined by a formula Loge(L2SD), the dispersion degree is not less than 2 and not more than 15.