Semiconductor Pin Electrical Characterization Method
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Solution Overview
Problem
Current methods for screening semiconductor devices for functionality are costly due to the need for expensive and sophisticated test equipment, and they do not effectively characterize pin electrical properties, which can lead to device failure from defects at the package interface.
Innovation Solution
A method for electrically characterizing semiconductor device pins by providing a test pattern, adjusting the electrical state, and measuring dependent states to generate an electrical characterization, which can be displayed and compared to expected values, allowing for rapid and compact functionality checking without the overhead of traditional automated test equipment hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional automated test equipment is used for semiconductor device screening, then measurement precision and reliability are improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent extracts the essential electrical characterization function from complex automated test equipment and implements it through a simplified circuit configuration. By separating the core measurement capability (voltage-current measurement at a pin) from the surrounding complex test infrastructure, the invention achieves accurate pin characterization without requiring sophisticated capital equipment.
Solution Approach 2:
The invention replaces expensive, complex automated test equipment with a simpler, more affordable testing approach using standard multimeters and basic circuit configurations. The test method uses disposable test patterns and standard electrical measurements rather than requiring expensive specialized test hardware.
2Reliability
If traditional automated test equipment is used for semiconductor device screening, then reliability is improved, but cost increases due to expensive capital equipment
Solution Approach 1:
The patent employs inexpensive standard multimeters and basic electrical measurement techniques instead of expensive automated test equipment. The testing method uses simple voltage-current measurements and standard electrical characteristics that can be measured with affordable equipment, significantly reducing the cost barrier for device screening while maintaining reliability.
Solution Approach 2:
The invention extracts the essential reliability-checking function from expensive automated test equipment and implements it through simplified electrical measurements. By focusing on core electrical characteristics (voltage, current, resistance) that can be measured with standard instruments, the patent achieves reliable device screening without the high cost of sophisticated test hardware.
3Reliability
If comprehensive device testing is performed to ensure functionality, then reliability is improved, but test duration increases causing cost to increase
Solution Approach 1:
The patent performs preliminary electrical characterization of individual pins before complete device assembly and final packaging. By measuring electrical characteristics early in the manufacturing process using simple voltage-current measurements, the method identifies defective devices before they undergo time-consuming final packaging and testing, thereby reducing overall test duration while maintaining reliability.
Solution Approach 2:
The invention segments the device testing process into independent pin-level electrical characterization measurements that can be performed in parallel. Instead of testing the entire device as a single unit, the patent measures individual pin characteristics separately, allowing concurrent testing of multiple pins and significantly reducing total test time while maintaining comprehensive functionality verification.
Data Source
AI summary
Embodiments related to electrically characterizing a semiconductor device are provided. In one example, a method for characterizing a pin of a semiconductor device is provided, the method comprising providing a test pattern to the semiconductor device. Further, the method includes adjusting a selected electrical state of a pin of the semiconductor device and measuring a value for a dependent electrical state of the pin responsive to the selected electrical state. The example method also includes generating an electrical characterization for the pin by correlating the dependent electrical state with the selected electrical state and outputting the electrical characterization for display.