Two-chip synchronous rectifier diode
A synchronous rectification and diode technology, which is applied in semiconductor/solid-state device components, semiconductor devices, electrical components, etc., to achieve the effects of improving bonding force, simplifying installation process, and eliminating structural defects
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Embodiment 1
[0042] Such as figure 1 As shown, the two-piece synchronous rectification diode with an open gap includes a first frame 1, a MOSFET chip 2, a control IC chip 3, a second frame 4, and a built-in capacitor 5. The second frame has two external leads The second frame is provided with an open gap, the control IC chip is fixed on the second frame, the external terminal of the built-in capacitor is connected to the second frame, and the internal terminal is located at the open gap; the first frame has an external The MOSFET chip is fixed on the first frame; the MOSFET chip, the control IC chip, and the built-in capacitor are connected through bonding wires.
[0043] The built-in capacitors are MLCC capacitors. The first frame and the second frame are copper alloy frames. The first frame 1, the MOSFET chip 2, the control IC chip 3, the second frame 4, and the built-in capacitor 5 are welded and formed by bonding wires, and then packaged in a plastic package to form an integral synch...
Embodiment 2
[0056] Such as image 3 As shown, the two-piece synchronous rectification diode with a closed gap includes a first frame 1, a MOSFET chip 2, a control IC chip 3, a second frame 4, and a built-in capacitor 5. The second frame has two external leads There is a closed gap on the second frame, the control IC chip is fixed on the second frame, the external terminal of the built-in capacitor is connected to the second frame, and the internal terminal is located at the closed gap; the first frame has an external The MOSFET chip is fixed on the first frame; the MOSFET chip, the control IC chip, and the built-in capacitor are connected through bonding wires.
[0057] The built-in capacitors are MLCC capacitors. The first frame and the second frame are copper alloy frames. The first frame 1, the MOSFET chip 2, the control IC chip 3, the second frame 4, and the built-in capacitor 5 are welded and formed by bonding wires, and then packaged in a plastic package to form an integral synchr...
Embodiment 3
[0069] Such as Figure 5 As shown, the two-piece synchronous rectification diode with insulating and heat-conducting coating includes a first frame 1, a MOSFET chip 2, a control IC chip 3, a second frame 4, and a built-in capacitor 5. The second frame has two external Pin, the control IC chip is fixed on the second frame, the external terminal of the built-in capacitor is connected to the second frame, and an insulating and heat-conducting coating 6 is provided between the internal terminal and the second frame; the first frame 1 is provided with an external The MOSFET chip is fixed on the first frame; the MOSFET chip, the control IC chip, and the built-in capacitor are connected through bonding wires.
[0070] The built-in capacitors are MLCC capacitors. The first frame and the second frame are copper alloy frames. The first frame 1, the MOSFET chip 2, the control IC chip 3, the second frame 4, and the built-in capacitor 5 are welded and formed by bonding wires, and then pa...
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