AI Patent Summary

Patent Document
#US6424211B1
United States Patent
Abstract
An operational amplifier is trimmed electrically using non- volatile fuses. The non-volatile fuses may be programmed electrically without destroying any passivation layers or other devices on the electronic component. In the case of an integrated circuit analog component, the ttimming may be performed either at the wafer level or at the packaging level. The trimming may be performed specifically to adjust the quiescent current or offset voltage of the operational ampli- fier. 26 Claims, 9 Drawing Sheets f_ 289 7— 960 FUSE IN NPGM
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Patent Classification & AI Product Mapping
Authoritative patent classification definitions mapped to real-world technology domains and commercial product categories.
CPC H03F3/00
Confidence: High
Official Definition
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
ELECTRICITY > ELECTRONIC CIRCUITRY > AMPLIFIERS
AI Technology & Product Mapping
Technology Domain:
Analog & Mixed-Signal Circuitry
Product Category:
Operational Amplifiers & Linear ICs
Plain-English Summary:
General electronic amplifiers built using solid-state semiconductor components rather than vacuum tubes.
Relation to Claims:
The patent discloses an operational amplifier utilizing semiconductor devices that are electrically trimmed using non-volatile fuses.
CPC H03F3/45
Confidence: High
Official Definition
Differential amplifiers
ELECTRICITY > ELECTRONIC CIRCUITRY > AMPLIFIERS
AI Technology & Product Mapping
Technology Domain:
Analog & Mixed-Signal Circuitry
Product Category:
Operational Amplifiers & Linear ICs
Plain-English Summary:
Amplifiers that measure and amplify the voltage difference between two input signals while rejecting signals common to both inputs.
Relation to Claims:
Operational amplifiers rely heavily on differential amplifier topologies as their core input stages, which are adjusted for parameters like offset voltage.
CPC H03F3/45071
Confidence: High
Official Definition
Differential amplifiers with semiconductor devices only
ELECTRICITY > ELECTRONIC CIRCUITRY > AMPLIFIERS
AI Technology & Product Mapping
Technology Domain:
Analog & Mixed-Signal Circuitry
Product Category:
Operational Amplifiers & Linear ICs
Plain-English Summary:
Differential amplifiers constructed exclusively using solid-state semiconductor components like transistors.
Relation to Claims:
The invention implements an operational amplifier IC using semiconductor-based differential amplifier configurations.
CPC H03F3/45479
Confidence: Medium
Official Definition
Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
ELECTRICITY > ELECTRONIC CIRCUITRY > AMPLIFIERS
AI Technology & Product Mapping
Technology Domain:
Analog & Mixed-Signal Circuitry
Product Category:
Operational Amplifiers & Linear ICs
Plain-English Summary:
Semiconductor differential amplifiers specifically focused on how they filter out unwanted noise and signals common to both inputs.
Relation to Claims:
Trimming the offset voltage and quiescent current directly impacts the performance, accuracy, and common-mode rejection characteristics of the differential amplifier.
CPC H03F3/45632
Confidence: Medium
Official Definition
Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
ELECTRICITY > ELECTRONIC CIRCUITRY > AMPLIFIERS
AI Technology & Product Mapping
Technology Domain:
Analog & Mixed-Signal Circuitry
Product Category:
Operational Amplifiers & Linear ICs
Plain-English Summary:
Semiconductor differential amplifiers using Field-Effect Transistors (FETs) as the primary amplifying elements, focusing on common-mode rejection.
Relation to Claims:
The patent deals with trimming integrated circuit analog components, which are commonly implemented using FET-based operational amplifiers.