Cyntec Company

Han-Hsiang Lee

Yi-Cheng Lin

Da-Jung Chen

Jeng-Jen Li

Kun-Hong Shih

Bau-Ru Lu

Pei-Chun Hung

The invention discloses a package structure for better heat-dissipation or EMI performance. A first conductive element and a second conductive element are both disposed between the top lead frame and the bottom lead frame. The first terminal of the first conductive element is electrically connected to the bottom lead frame, and the second terminal of the first conductive element is electrically connected to the top lead frame. The third terminal of the second conductive element is electrically connected to the bottom lead frame, and the fourth terminal of the second conductive element is electrically connected to the top lead frame. In one embodiment, a heat dissipation device is disposed on the top lead frame. In one embodiment, the molding compound is provided such that the outer leads of the top lead frame are exposed outside the molding compound.

Package structure and manufacturing method thereof

A composite substrate made of a conductive pattern structure mounted on a lead frame is used for an electronic system package. High heat generated electronic components are adapted to mount on the lead frame and relatively low heat generated electronic components are adapted to mount on the conductive pattern structure. Metal lines are used for electrical coupling between the circuitry of the IC chip and the conductive pattern structure. An electronic system with the composite substrate gains both advantages&#x2014;good circuitry arrangement capability from the conductive pattern structure and good heat distribution from the lead frame.

Electronic system with a composite substrate

An electronic package structure is provided. The electronic package structure comprises a substrate, a first electronic element, and a second electronic element. The substrate includes a heat-dissipating plate and a circuit board disposed on the heat-dissipating plate. The first electronic element is disposed on the heat-dissipating plate and coupled to the circuit board. The second electronic element is disposed on the circuit board and coupled to the circuit board.

Electronic package structure

A composite substrate made of a circuit board mounted on a lead frame is used for an electronic system package. High heat generated electronic components are adapted to mount on the lead frame and relatively low heat generated electronic components are adapted to mount on the circuit board. Metal lines are used for electrical coupling between the circuitry of the IC chip and the circuit board. An electronic system with the composite substrate gains both advantages&#x2014;good circuitry arrangement capability from the circuit board and good heat distribution from the lead frame.

A MOSFET pair with a stack capacitor is disclosed herein. It can regulate the input voltage and optimize a short EMI loop. It has a bottom lead frame and an up lead frame, which can simultaneously dissipate the heat generated by two MOSFETs to achieve excellent thermal-dissipation. It can adopt solder, Ag epoxy, or gold balls to implement the electrical bonding of two MOSFETs with the bottom lead frame and the up lead frame to achieve excellent structural flexibility. A device, such as an IGBT, a diode, an inductor, a choke, and a heat sink, can be stacked above the up lead frame to form a powerful SiP module. A corresponding method of manufacturing the MOSFET pair with a stack capacitor is also disclosed herein, which is simple, time-saving, flexible, cost-effective, and facile.

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Taipei, Taiwan

Han-Hsiang Lee