US 11,742,267 B2
Power electronics assembly having flipped chip transistors
Hitoshi Fujioka, Ann Arbor, MI (US); Shailesh N. Joshi, Ann Arbor, MI (US); Feng Zhou, Ann Arbor, MI (US); and Danny J. Lohan, Ann Arbor, MI (US)
Assigned to Toyota Motor Engineering and Manufacturing North America, Inc., Plano, TX (US)
Filed by Toyota Motor Engineering and Manufacturing North America, Inc., Plano, TX (US)
Filed on Oct. 12, 2020, as Appl. No. 17/68,070.
Prior Publication US 2022/0115305 A1, Apr. 14, 2022
Int. Cl. H01L 23/495 (2006.01); H01L 25/07 (2006.01)
CPC H01L 23/49568 (2013.01) [H01L 23/49537 (2013.01); H01L 23/49541 (2013.01); H01L 23/49548 (2013.01); H01L 23/49562 (2013.01); H01L 23/49575 (2013.01); H01L 23/49589 (2013.01); H01L 25/072 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power electronics apparatus comprising:
a transistor assembly comprising a plurality of transistor pairs arranged in a common plane, each transistor pair comprising a first transistor and a second transistor, each transistor comprising a first terminal and a signal terminal on a first surface and a second terminal on a second surface, the second surface on an opposite side relative to the first surface, wherein for each pair of transistors the second transistor is flipped relative to the first transistor such that the second surface of the second transistor faces the same direction as the first surface of the first transistor;
wherein, the transistor assembly further comprises:
a first lead frame arranged parallel to the first transistor in each transistor pair, the first lead frame electrically coupled to the first transistor in each transistor pair;
a second lead frame arranged coplanar to the first lead frame and parallel to the second transistor in each transistor pair, the second lead frame electrically coupled to the second transistor in each transistor pair; and
a plurality of output lead frames arranged coplanar to each other, each respective output lead frame arranged parallel to and electrically coupled to a respective one pair of the plurality of transistor pairs.