Invention Grant
- Patent Title: Optimized configurations to integrate steering diodes in low capacitance transient voltage suppressor (TVS)
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Application No.: US14627750Application Date: 2015-02-20
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Publication No.: US09793256B2Publication Date: 2017-10-17
- Inventor: Madhur Bobde
- Applicant: Alpha and Omega Semiconductor Incorporated
- Applicant Address: US CA Sunnyvale
- Assignee: Alpha and Omega Semiconductor Incorporated
- Current Assignee: Alpha and Omega Semiconductor Incorporated
- Current Assignee Address: US CA Sunnyvale
- Agent Bo-In Lin
- Main IPC: H01L21/332
- IPC: H01L21/332 ; H01L27/02 ; H01L29/866 ; H01L29/74 ; H01L29/66 ; H01L21/266
Abstract:
A transient-voltage suppressing (TVS) device disposed on a semiconductor substrate including a low-side steering diode, a high-side steering diode integrated with a main Zener diode for suppressing a transient voltage. The low-side steering diode and the high-side steering diode integrated with the Zener diode are disposed in the semiconductor substrate and each constituting a vertical PN junction as vertical diodes in the semiconductor substrate whereby reducing a lateral area occupied by the TVS device. In an exemplary embodiment, the high-side steering diode and the Zener diode are vertically overlapped with each other for further reducing lateral areas occupied by the TVS device.
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Information query
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