Invention Grant
- Patent Title: Pad ESD spreading technique
- Patent Title (中): 垫ESD传播技术
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Application No.: US11621724Application Date: 2007-01-10
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Publication No.: US07564665B2Publication Date: 2009-07-21
- Inventor: Patrick J. Holly , David Rodriguez , David R. Rice
- Applicant: Patrick J. Holly , David Rodriguez , David R. Rice
- Applicant Address: US NY Hauppauge
- Assignee: Standard Microsystems Corporation
- Current Assignee: Standard Microsystems Corporation
- Current Assignee Address: US NY Hauppauge
- Agency: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- Agent Jeffrey C. Hood
- Main IPC: H02H9/00
- IPC: H02H9/00

Abstract:
A system, e.g. an integrated circuit or part, may include a plurality of pads, e.g. digital I/O pads, each comprising a physical pad and associated pad circuit. In case of an ESD event affecting one or more of the digital I/O pads, PMOS devices configured in an output buffer section between an I/O pad supply rail and the physical output pad—within their respective pad circuits in the affected digital I/O pads—may all be turned on in response to the ESD event. This may allow the capacitance of each pad, in some cases approximately 3 pF capacitance per pad, to charge up, absorbing the energy of the ESD event and reducing the peak voltage the integrated circuit or part experiences as a result of the ESD event. The reduced peak voltage may be directly correlated with improved ESD performance of the product.
Public/Granted literature
- US20080165459A1 Pad ESD Spreading Technique Public/Granted day:2008-07-10
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