Introduction to 4-Layer LTCC Ceramic PCB with Al2O3 Substrate 

Kathy from Best Technology presents a ceramic PCB, specifically a 4-layer LTCC ceramic board. It features an Al2O3 substrate with a 1.2mm thickness, silver conductor, blue glass glaze solder mask, and immersion gold surface treatment. Notably, the board includes 4 holes via in pad filled with resin and copper plated.
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www.bstceramicpcb.com

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