Full protection component for a subscriber line interface circuit
US5828089A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 1996 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | May 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/60
Abstract
A monolithic component for protecting a subscriber line interface circuit includes, in an N-type substrate, whose bottom surface is coated with a first uniform metallization, first and second portions separated by a P-type isolation wall. The first portion includes two vertical diodes having a common cathode corresponding to the bottom surface of the substrate, two vertical transistors having a common collector and a common base, the collectors corresponding to the bottom surface of the substrate. The second portion includes two sets each including a pair of head-to-tail parallel-connected vertical thyristors and a pair of head-to-tail parallel-connected vertical zener diodes for controlling the conduction of these thyristors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.