(19)
(11) EP 4 824 874 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24903013.1

(22) Date of filing: 16.12.2024
(51) International Patent Classification (IPC): 
H01L 23/498(2006.01)
(52) Cooperative Patent Classification (CPC):
H10W 40/255; H10W 70/658; H10W 90/401; H10W 42/121
(86) International application number:
PCT/CN2024/139644
(87) International publication number:
WO 2025/124598 (19.06.2025 Gazette 2025/25)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 15.12.2023 CN 202311741137

(71) Applicant: Littelfuse, Inc.
Rosemont, Illinois 60018 (US)

(72) Inventors:
  • ONG, Yong Ai
    Chicago Illinois 60631 (US)
  • TAI, Chuyao
    Chicago Illinois 60631 (US)

(74) Representative: Arnold & Siedsma 
Bezuidenhoutseweg 57
2594 AC The Hague
2594 AC The Hague (NL)

   


(54) PACKAGE DEVICE BASEPLATE INCLUDING PLATFORM SECTION