US 12,341,426 B2
Semiconductor device, electronic device, and method of setting characteristics of electronic device
Ryuu Soga, Yokohama (JP); and Tomoyuki Maeda, Yokohama (JP)
Assigned to LAPIS Technology Co., Ltd., Yokohama (JP)
Filed by LAPIS Technology Co., Ltd., Yokohama (JP)
Filed on Sep. 18, 2023, as Appl. No. 18/468,738.
Claims priority of application No. 2022-155406 (JP), filed on Sep. 28, 2022.
Prior Publication US 2024/0106327 A1, Mar. 28, 2024
Int. Cl. H02M 3/156 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/156 (2013.01) [H02M 1/0012 (2021.05)] 14 Claims
OG exemplary drawing
 
1. A semiconductor device comprising:
a storage circuit configured to be connected to a regulator circuit having characteristics to be identified using one or a plurality of values and store values identifying the characteristics of the regulator circuit; and
an electronic fuse controller including: an input configured to be connected to an electronic fuse circuit including one or a plurality of electronic fuses, an output configured to be connected to the storage circuit, a reading control circuit, and a characteristic control circuit,
wherein the reading control circuit includes a reading circuit configured to read values from at least part of the electronic fuses through the input in a reading period, and
wherein the characteristic control circuit is configured to generate identification data configured to identify the characteristics based on a signal from the reading circuit, and supply the identification data to the storage circuit through the output in an identifying period different from the reading period.