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產品介紹

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Void Free AMB Substrate

KI 為全球首家,自 2022 年起正式投入 AMB 基板的量產與供應。

憑藉獨特的製程技術,KI 能在銅材與陶瓷之間的介面實現無空洞(Void)的穩定接合。

在異質材料的接合過程中,因熱膨脹係數差異,空洞周圍的結合強度容易降低,甚至可能導致剝離,進而對應用於電動車與航太領域之功率模組的運作可靠性造成重大影響。

KI 的 AMB 基板以高可靠性為核心,已廣泛應用於電動車功率模組及衛星電源模組。

Application
Power Modules for xEV, renewable energy, aerospace
Features
Void Free in interface between copper and ceramic
Thermal Shock Test : 3000 Cycles
Test Condition : -55~150℃, 30 min/cycle, Total 1500 Hours
Major reference
EV Power module : German EV power module
Satellite Power module : China Satellite
Industrial Power module : Littelfuse TO-247 (ISO-247), SMPD

Void Free Picture

Data sheet

Product STC Substrates AMB Substrates
Ceramic materials Al2O3 AlN-170 AlN-130 AlN-170 Si3N4
Raw Materials Ceramic thickness (mm) 0.25 / 0.38 / 0.635 / 1.0 0.38 / 0.635 0.25 / 0.38 / 0.635 / 1.0 0.25 / 0.32
Cu thickness (mm) 0.006~0.3 0.127 / 0.3 / 0.4 / 0.5 / 0.8
Thermal CTE ppm/K @ 20°C - 400°C 6.7 4.6 4.6 4.6 2.6
Thermal conductivity W/mK @ 25°C 24 180 130 180 85
Mechanical Bending strength MPa 400 450 650 450 800
Fracture toughness MPa・√m 3.0 3.0 2.4 3.0 6.5
Electrical Breakdown strength kV/mm (DC) >15 >15 >15 >15 >15
Electrical resistivity Ω·cm @ 25℃ >1014 >1014 >1014 >1014 >1014

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