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Heat dissipation substrate for multi-chip package

專利號
US11177188B1
公開日期
2021-11-16
申請人
ACTRON TECHNOLOGY CORPORATION(TW Taoyuan)
發(fā)明人
Hsin-Chang Tsai; Ching-Wen Liu
IPC分類
H01L23/34; H01L23/28; H01L21/00; H05K7/20; H05K7/18; H01L23/367; H01L23/31; H01L25/07; H01L23/00; H01L21/48; H01L21/56; H01L23/495
技術領域
chipset,chip,chips,substrate,thermally,molded,packaging,heat,conductive,pre
地域: Taoyuan

摘要

A chip packaging structure includes a heat dissipation substrate, a pre-molded chipset, an interconnection and a second encapsulant. The pre-molded chipset is located on the heat dissipation substrate. The interconnection is located in the packaging structure and electrically connects the heat dissipation substrate and the pre-molded chipset. The second encapsulant covers part of the heat dissipation substrate, part or all of the interconnection, and part or all of the pre-molded chipset. The pre-molded chipset includes a thermally conductive substrate, at least two chips, a patterned circuit, and a first encapsulant. The patterned circuit is located in the pre-molded chipset. At least two chips are electrically connected by the patterned circuit. The first encapsulant covers at least two chips and part or all of the patterned circuit. A manufacturing method of a chip packaging structure is also provided.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

It should be noted that although the combination of four three-terminal chips is shown in FIG. 2B, the combination mode of the chips 1220 of the disclosure is not limited thereto, and may be arranged according to actual design requirements. For example, in some embodiments, the at least two chips 1220 may all be three-terminal chips. In other embodiments, the at least two chips 1220 may all be two-terminal chips. In yet other embodiments, the at least two chips 1220 may include a combination of three-terminal chips and two-terminal chips.

In some embodiments, the chip 1220 may be a silicon carbide (SiC) or gallium nitride (GaN) wide bandgap semiconductor. Since the larger the size of the wide bandgap semiconductor chip, the lower the yield rate, the wide bandgap single large-sized chip has a disadvantage of being more expensive than multiple small-sized chips. As a result, the disposition of the chipset can more effectively reduce the total cost of the chip packaging structure including the wide bandgap chip, but the disclosure is not limited thereto.

權利要求

1
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