SIMPLIFIED CARRIER REMOVABLE BY REDUCED NUMBER OF CMP PROCESSES

A method includes bonding a first package component on a composite carrier, and performing a first polishing process on the composite carrier to remove a base carrier of the composite carrier. The first polishing process stops on a first layer of the composite carrier. A second polishing process is...

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Bibliographische Detailangaben
Hauptverfasser: Shih, Chao-Wen, Ko, Ting-Chu, Chang, Chun-Wei, Chen, Ming-Fa
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method includes bonding a first package component on a composite carrier, and performing a first polishing process on the composite carrier to remove a base carrier of the composite carrier. The first polishing process stops on a first layer of the composite carrier. A second polishing process is performed to remove the first layer of the composite carrier. The second polishing process stops on a second layer of the composite carrier. A third polishing process is performed to remove a plurality of layers in the composite carrier. The plurality of layers include the second layer, and the third polishing process stops on a dielectric layer in the first package component.