Device comprising a plurality of diodes

A device comprising a plurality of interconnected concentric coplanar diodes, each diode comprising a continuous active region comprising a vertical stack of first and second regions of opposite conductivity types, the active regions of the different diodes being separated from one another by ring-shaped trenches crossing said stack,

• wherein:
• the diodes are connected two by two in antiparallel, the associations of two diodes in antiparallel being series-connected;
• first and second neighboring diodes are connected by first and second metallizations arranged in the ring-shaped trench which separates them, the first and second metallizations substantially extending along respective first and second halves of the length of said trench, the first metallization being in contact with the second region of the first diode and with the first region of the second diode along substantially the entire first half of the length of said trench, and the second metallization being in contact with the first region of the first diode and with the second region of the second diode along substantially the entire second half of the length of said trench;
• and
• a third diode next to the second diode is connected to the second diode by a third metallization arranged in the ring-shaped trench which separates them, the third metallization extending along substantially the entire length of said trench and being in contact with the second region of the second diode and with the second region of the third diode along substantially the entire length of the trench.