3D integrated DC-DC power converters

Techniques for integrating DC-DC power converters with other on-chip circuitry are provided. In one aspect, an integrated DC-DC power converter includes: a GaN transistor chip having at least one GaN switch formed thereon; an interposer chip, bonded to the GaN transistor chip, having at least one po...

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Bibliographische Detailangaben
Hauptverfasser:	Sadana Devendra K, Wang Naigang, Sprogis Edmund J, Deligianni Hariklia
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	Techniques for integrating DC-DC power converters with other on-chip circuitry are provided. In one aspect, an integrated DC-DC power converter includes: a GaN transistor chip having at least one GaN switch formed thereon; an interposer chip, bonded to the GaN transistor chip, having at least one power driver transistor formed thereon; TSVs present in the interposer chip adjacent to the power driver transistor and which connect the power driver transistor to the GaN switch; and an on-chip magnetic inductor formed either on the GaN transistor chip or on the interposer chip. A method of forming a fully integrated DC-DC power converter is also provided.