Symmetric IC Input Circuitry for Orientation-Independent Assembly
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Solution Overview
Problem
Integrated circuit devices with a one-wire interface in symmetric packages face challenges during manufacturing, testing, and assembly due to the need for correct orientation, which can be error-prone and reduce available footprint for pressure contacts.
Innovation Solution
A self-configuring integrated circuit device with an input stage that provides an internal operating voltage with predefined polarity, independent of the external voltage polarity, allowing for symmetrical packaging without orientation guides or labels, and enabling easier handling and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the package is made symmetric to reduce cost and simplify structure, then manufacturing cost and structural complexity are reduced, but handling and assembly become error-prone due to lack of orientation identification
Solution Approach 1:
The input stage automatically detects the external voltage polarity and self-configures the internal connections to provide a standardized internal operating voltage with correct polarity, eliminating the need for external orientation identification or manual configuration during assembly
Solution Approach 2:
The system changes its internal configuration parameters based on the detected external voltage polarity, allowing the same physical package to correctly operate regardless of how it is oriented during assembly
2Ease of operation
If labeling or modification is added to make the package asymmetric for correct orientation identification, then ease of operation during assembly is improved, but the available footprint for pressure contacts is reduced
Solution Approach 1:
The input stage performs automatic polarity detection and self-configuration, making the package self-sufficient for orientation identification without requiring external labels or modifications that would consume package footprint
Solution Approach 2:
The orientation identification function is extracted from the physical package structure (labels, asymmetric features) and transferred to the electronic input stage, freeing up package footprint for pressure contacts
3Ease of operation
If labeling is added to indicate correct orientation, then ease of operation during assembly is improved, but manufacturing complexity and potential for error are increased due to additional steps and image recognition requirements
Solution Approach 1:
The input stage automatically detects voltage polarity and configures itself, eliminating the need for labels and the associated manufacturing steps, thereby reducing manufacturing complexity while maintaining ease of operation
Solution Approach 2:
The mechanical/visual orientation identification system (labels, asymmetric features) is replaced with an electrical detection system in the input stage that automatically identifies polarity through voltage application
Data Source
AI summary
An integrated circuit device is disclosed, which integrated circuit device comprises at least a first external contact, a second external contact, and an input stage, connected with the external contacts and being configured to provide an internal operating voltage when an external voltage is applied to the external contacts. To allow easier handling at manufacture, test, assembly, and end use, the internal operating voltage has a predefined polarity, which predefined polarity is independent of the polarity of the external voltage.