Light detector, light detection system, lidar device, and vehicle

A light detector, comprising:

• a conductive layer including a first conductive portion and a second conductive portion;
• a first element including a first semiconductor layer, a second semiconductor layer, and a third semiconductor layer, the first semiconductor layer being of a first conductivity type, the second semiconductor layer and the third semiconductor layer being of a second conductivity type, the second semiconductor layer being provided between the first conductive portion and the first semiconductor layer in a second direction crossing a first direction, the third semiconductor layer being provided between the first conductive portion and the second semiconductor layer, the first direction being from the first conductive portion toward the second conductive portion;
• a second element including a fourth semiconductor layer, a fifth semiconductor layer, and a sixth semiconductor layer, the fourth semiconductor layer being of the first conductivity type, the fifth semiconductor layer and the sixth semiconductor layer being of the second conductivity type, the fifth semiconductor layer being provided between the second conductive portion and the fourth semiconductor layer in the second direction, the sixth semiconductor layer being provided between the second conductive portion and the fifth semiconductor layer;
• a first insulating part provided between the first element and the second element;
• a second insulating part provided between the first insulating part and the second element;
• a first member provided between the first insulating part and the second insulating part, a light transmittance of the first member being lower than a light transmittance of the third semiconductor layer and lower than a light transmittance of the sixth semiconductor layer;
• and
• a first wiring part electrically connected to the first semiconductor layer,
• a portion of the first element and a portion of the first insulating part being positioned between the conductive layer and the first wiring part in the second direction.

A light detector, comprising:

• a conductive layer including a first conductive portion and a second conductive portion;
• a first element including a first semiconductor layer and a second semiconductor layer, the first semiconductor layer being of a first conductivity type, the second semiconductor layer being of a second conductivity type and being provided between the first conductive portion and the first semiconductor layer in a second direction crossing a first direction, the first direction being from the first conductive portion toward the second conductive portion;
• a second element including a fourth semiconductor layer and a fifth semiconductor layer, the fourth semiconductor layer being of the first conductivity type, the fifth semiconductor layer being of the second conductivity type and being provided between the second conductive portion and the fourth semiconductor layer in the second direction;
• a first member provided between the first element and the second element and between the first conductive portion and the second conductive portion, the first member being conductive;
• an insulating layer provided between the conductive layer and the first member;
• a first insulating part provided between the first element and the first member;
• a second insulating part provided between the second element and the first member;
• and
• a first wiring part electrically connected to the first semiconductor layer and the first member.

A light detector comprising:

• a conductive layer including a first conductive portion and a second conductive portion;
• a first element including a first semiconductor layer and a second semiconductor layer, the first semiconductor layer being of a first conductivity type, the second semiconductor layer being of a second conductivity type and being provided between the first conductive portion and the first semiconductor layer in a second direction crossing a first direction, the first direction being from the first conductive portion toward the second conductive portion;
• a second element including a fourth semiconductor layer and a fifth semiconductor layer, the fourth semiconductor layer being of the first conductivity type, the fifth semiconductor layer being of the second conductivity type and being provided between the second conductive portion and the fourth semiconductor layer in the second direction;
• a first member provided between the first element and the second element and electrically connected to the conductive layer, the first member being conductive;
• a first insulating part provided between the first element and the first member;
• a second insulating part provided between the second element and the first member;
• and
• a semiconductor part provided between the first insulating part and the first member, between the second insulating part and the first member, or between the first insulating part and the first member and between the second insulating part and the first member.