Composite substrate
TW202642219APending Publication Date: 2026-10-16NGK INSULATORS LTD
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Patent Information
- Application Number
- TW114148846
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-10-28
- Filing Date
- 2025-12-12
- Publication Date
- 2026-10-16
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Abstract
A composite substrate with excellent electrical properties is provided. According to an embodiment of the present invention, the composite substrate sequentially comprises: a support substrate, a charge-trapping layer, an intermediate layer, and a functional layer. The oxygen concentration of the support substrate is 1.0 × 10¹⁸ atoms / cm³ or less. The charge-trapping layer has a different crystalline structure from the support substrate, or has an amorphous structure.
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