VERTICAL SILICON CONTROLLED RECTIFIER ELECTRO-STATIC DISCHARGE PROTECTION DEVICE IN BI-CMOS TECHNOLOGY
A vertical silicon controlled rectifier (SCR) that directs an electro-static discharge (ESD) current directly to ground from the input/output pad. The vertical SCR is includes a vertical NPN and a vertical PNP that creates a very good SCR exhibiting very low ohmic on-resistance. The vertical SCR pro...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
01.02.2007
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Subjects | |
Online Access | Get full text |
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Summary: | A vertical silicon controlled rectifier (SCR) that directs an electro-static discharge (ESD) current directly to ground from the input/output pad. The vertical SCR is includes a vertical NPN and a vertical PNP that creates a very good SCR exhibiting very low ohmic on-resistance. The vertical SCR provides a low on-resistance and fast turn on, and can be adjusted to alter the trigger voltage value, holding voltage and how it is triggered. It can be optimized to trigger under ESD events and discharge the ESD current effectively to ground. |
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Bibliography: | Application Number: US20050161230 |