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US 9,431,385 B2Granted
Semiconductor component that includes a common mode filter and method of manufacturing the semiconductor component
AssigneeSemiconductor Components Industries, LLC
InventorsYupeng Chen, Rong Liu, Phillip Holland, Umesh Sharma
Life of this patent
Estimating the term…
Abstract
In accordance with an embodiment, a semiconductor component, includes a common mode filter monolithically integrated with a protection device. The common mode filter includes a plurality of coils and the protection device has a terminal coupled to a first coil and another terminal coupled to a second coil.
Claims14
A semiconductor component, comprising a common mode filter monolithically integrated with a protection device, the common mode filter comprising:
- a first coil having first and second terminals;
- a second coil having first and second terminals, the first terminal of the second coil coupled to the first terminal of the first coil, the first coil magnetically coupled to the second coil;
- the protection device having a first terminal coupled to the first terminal of the first coil and a second terminal coupled to the first terminal of the second coil;
- and
- wherein the protection device further comprises a first capacitor coupled between the first terminal and the second terminal of the first coil and a second capacitor coupled between the first terminal and the second terminal of the second coil.
2 more elements
A semiconductor component, comprising a common mode filter monolithically integrated with a protection device, the common mode filter comprising:
- a first coil having first and second terminals;
- a second coil having first and second terminals, the first terminal of the second coil coupled to the first terminal of the first coil, the first coil magnetically coupled to the second coil;
- the protection device having a first terminal coupled to the first terminal of the first coil and a second terminal coupled to the first terminal of the second coil, wherein the protection device further comprises:
- a first diode having an anode and a cathode;
- and
- a second diode having an anode and a cathode, the cathode of the first diode coupled to the first terminal of the first coil, the cathode of the second diode coupled to the anode of the first diode;
- a third diode having an anode and a cathode, the anode of the third diode coupled to the anode of the second diode;
- and
- a fourth diode having an anode and a cathode, the anode of the fourth diode coupled to cathode of the third diode and to the first terminal of the second coil;
- a first transistor having a control electrode and first and second current carrying electrodes, the first current carrying electrode coupled to the cathode of the first diode and the second current carrying electrode coupled to the anode of the second diode and to the anode of the third diode;
- and
- a second transistor having a control electrode and first and second current carrying electrodes, the first current carrying electrode of the second transistor coupled to the second current carrying electrode of the first transistor, and the second current carrying electrode of the second transistor coupled to the anode of the fourth diode.
9 more elements
A semiconductor component that includes a common mode filter monolithically integrated with a protection device, the semiconductor component comprising:
- a semiconductor material having a peripheral region, a central region, and a resistivity of at least 5 ohm-centimeters, wherein the central region comprises a plurality of device regions isolated by isolation trenches;
- a first coil over a first portion of the central region, the first coil having a first terminal and a second terminal;
- a second coil over a second portion of the central region, the second coil having a first terminal and a second terminal;
- a first insulating material over the first and second coils;
- and
- a protection device monolithically integrated with the first and second coils, the protection device having a first terminal coupled to the first coil and a second terminal coupled to the second coil, wherein the protection device further comprises:
- a first diode having an anode and a cathode, the cathode of the first diode coupled to the first terminal of the first coil;
- and
- a second diode having an anode and a cathode, the cathode of the second diode coupled to the second terminal of the second coil, the anode of the second diode coupled to the anode of the first diode;
- and wherein the protection device further comprises a first capacitor coupled between the first terminal and the second terminal of the first coil and a second capacitor coupled between the first terminal and the second terminal of the second coil.
7 more elements
Dependencies are inferred from the claim text.