INTEGRATED CIRCUIT SHAPED WITH A STACK OF TWO CHIPS CONNECTED IN SERIES

摘要

An integrated circuit (100) includes a first chip (30) having a depletion mode high voltage transistor and a second chip (40) having an enhancement mode device, the first (30) and second (40) chips having on their front face respectively first and second contact pads gate (31,41), source (32,42) and drain (33,43). The integrated circuit (100) is remarkable in that: • The first chip (30) and the second chip (40) are assembled together at their respective front faces (34,44) and form a stack (50), the surface of the first chip (30) being greater than that of the second chip (40) so that a peripheral portion of the front face (34) of the first chip (30) is not masked by the second chip (40), • the first chip (30) comprises at least one additional contact pad (331) disposed on its front face (34), electrically isolated from the high voltage transistor in depletion mode, and in contact with the second stud gate contact (41), • The first gate contact pad (31) is in contact with the second source contact pad (42) and / or the first source pad (32) is in contact with the second drain contact pad (43), • the first gate contact pad (31) and the contact pad ad In the peripheral portion of the first chip (30), at least part of the distribution (331) extends.