Devices for monolithic data conversion interface protection and methods of forming the same
US9006781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2013 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Oct 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/611
Abstract
Apparatus and methods for monolithic data conversion interface protection are provided herein. In certain implementations, a protection device includes a first silicon controlled rectifier (SCR) and a first diode for providing protection between a signal node and a power high supply node, a second SCR and a second diode for providing protection between the signal node and a power low supply node, and a third SCR and a third diode for providing protection between the power high supply node and the power low supply node. The SCR and diode structures are integrated in a common circuit layout, such that certain wells and active regions are shared between structures. Configuring the protection device in this manner enables in-suit input/output interface protection using a single cell. The protection device is suitable for monolithic data conversion interface protection in sub 3V operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.