US 12,446,180 B2
High power multilayer module having low inductance and fast switching for paralleling power devices
Daniel Martin, Fayetteville, AR (US); Brice McPherson, Fayetteville, AR (US); and Alexander Lostetter, Fayetteville, AR (US)
Assigned to Wolfspeed, Inc., Durham, NC (US)
Filed by Wolfspeed, Inc., Durham, NC (US)
Filed on May 6, 2024, as Appl. No. 18/655,878.
Application 18/655,878 is a continuation of application No. 16/890,503, filed on Jun. 2, 2020, granted, now 12,010,823.
Application 16/890,503 is a continuation of application No. 16/266,771, filed on Feb. 4, 2019, granted, now 10,749,443, issued on Aug. 18, 2020.
Application 16/266,771 is a continuation in part of application No. 15/405,520, filed on Jan. 13, 2017, granted, now 10,212,838, issued on Feb. 19, 2019.
Claims priority of provisional application 62/790,965, filed on Jan. 10, 2019.
Prior Publication US 2024/0292575 A1, Aug. 29, 2024
Int. Cl. H05K 7/14 (2006.01); G01R 31/40 (2020.01); H01L 25/16 (2023.01); H02M 1/00 (2007.01); H05K 1/02 (2006.01); H05K 1/18 (2006.01); H05K 7/20 (2006.01)
CPC H05K 7/14329 (2022.08) [H01L 25/165 (2013.01); H05K 1/0271 (2013.01); H05K 1/181 (2013.01); H05K 7/20509 (2013.01); H05K 7/20909 (2013.01); G01R 31/40 (2013.01); H02M 1/0054 (2021.05)] 23 Claims
OG exemplary drawing
 
1. A power module, comprising:
at least one power substrate;
a housing arranged on the at least one power substrate;
a first terminal electrically connected to the at least one power substrate;
a second terminal; and
a plurality of power devices electrically connected to the at least one power substrate,
wherein the first terminal, the second terminal, the at least one power substrate, and the plurality of power devices are configured such that current flows in a first direction from the first terminal across the at least one power substrate; and
wherein the first terminal, the second terminal, the at least one power substrate, and the plurality of power devices are further configured such that current flows in a second direction, opposite to the first direction, from the at least one power substrate to the second terminal to reduce impedance; and
wherein the power module is structured, arranged, and configured to have switching losses within a range of 0.05 milli-joules per amp (mJ/A) to 0.025 milli-joules per amp (mJ/A).