Photoelectric conversion apparatus, photoelectric conversion system, and moving body

A photoelectric conversion apparatus including a semiconductor layer and a wiring structure, wherein

• the semiconductor layer includes a pixel array region including a plurality of pixels, a scribe region including an outer edge of the semiconductor layer, a peripheral region arranged between the pixel array region and the scribe region, and an isolation portion configured to electrically isolate the peripheral region and the scribe region,
• each of the plurality of pixels includes an avalanche photodiode including a first semiconductor region of a first conductivity type containing, as a majority carrier, a charge with a first polarity and a second semiconductor region of a second conductivity type containing, as a majority carrier, a charge with a second polarity different from the first polarity,
• the peripheral region includes a first region of the first conductivity type and a second region of the second conductivity type, and the second region is supplied with the same voltage as a voltage supplied to the second semiconductor region,
• the scribe region includes a third region of the first conductivity type,
• the wiring structure includes a first electrically conductive path configured to electrically connect the first region and the third region, and a voltage supply line supplied with a predetermined voltage between a voltage of the first semiconductor region and a voltage of the second semiconductor region, and
• the first region and the voltage supply line are electrically connected by a second electrically conductive path.