Memory Device Reuse via Health Report Grading
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Solution Overview
Problem
Conventional solutions for recycling memory devices fail to effectively reuse or repurpose memory devices that do not meet specification requirements for primary applications, leading to waste and inefficiency in semiconductor manufacturing.
Innovation Solution
The proposed solution involves reusing or repurposing memory devices that do not meet specifications for primary applications by identifying suitable secondary applications based on the device's health report, which includes information on reuse state, health grade, and operating conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If memory devices that do not meet primary application specifications are discarded, then manufacturing quality standards are maintained, but semiconductor waste increases and resources are lost
Solution Approach 1:
The patent changes the specification parameters by creating secondary application specifications that are less stringent than primary application specifications. Memory devices that fail primary specifications are re-evaluated against relaxed secondary specifications, allowing them to be reused in applications where their performance is still adequate. This transforms the parameter requirements from strict to flexible based on the application tier.
Solution Approach 2:
The patent makes memory devices multi-functional by enabling them to serve both primary and secondary applications. A single memory device can be deployed in primary applications if it meets those specifications, or repurposed for secondary applications if it only meets the relaxed secondary specifications. This universal approach maximizes device utilization and reduces waste.
2Loss of substance
If memory devices are reused in secondary applications with relaxed specifications, then semiconductor waste is reduced and costs decrease, but device reliability for the original application is compromised
Solution Approach 1:
The patent applies local quality by matching specific memory devices to specific secondary applications based on their actual performance characteristics. Instead of uniformly discarding all devices that fail primary specifications, the system evaluates each device's actual capabilities and assigns it to a secondary application where those capabilities are sufficient. This localized matching ensures reliability is maintained for each specific use case.
Solution Approach 2:
The patent converts the harm of specification failures into benefit by creating a structured reuse pathway. Devices that fail primary specifications are not simply discarded as defects, but are systematically re-evaluated and deployed in secondary applications where their performance is still adequate. The failure to meet primary specs becomes the criterion for entering a beneficial reuse program rather than disposal.
3Measurement precision
If health reports are generated and analyzed to determine reuse eligibility, then device reuse accuracy improves, but system complexity and processing requirements increase
Solution Approach 1:
The patent applies preliminary action by generating health reports during or immediately after the manufacturing testing process, before the devices are finalized for primary applications or discarded. This early generation of health reports captures accurate device state information when it is most relevant, enabling subsequent reuse determination without requiring complex post-manufacturing analysis systems.
Data Source
AI summary
Methods of reusing and/or repurposing microelectronic devices are disclosed. A method may include enabling a reuse mode on a memory device responsive to the memory device being fit for a secondary application. The method may further include reconfiguring the memory device responsive to enabling the reuse mode. Associated systems are also disclosed.