The first question is not whether it is new
New matters. It just does not settle the investment question.
A device structure can be novel. A process step can be clever. A paper can be impressive. A patent can be filed. None of that automatically means the company can capture value if the idea works.
What defensibility actually protects
Defensibility protects the gap between technical progress and economic capture. It answers what happens after the market notices.
Can a better-capitalized company copy it? Can a customer design around it? Can a foundry offer an alternative? Can the incumbent absorb the feature? Can the advantage survive qualification, pricing pressure, and second-source requirements?
Where moat can come from
In hard tech, defensibility may come from IP, know-how, process control, yield learning, data, customer integration, qualification history, supply-chain access, or switching cost.
The strongest moat is tied to the bottleneck the customer actually cares about. A performance edge that does not change adoption, cost, qualification, or system value may be real and still not be investable.
TIGRE lens
TIGRE separates novelty from defensible advantage. The question is not "is this new?" The question is "if this works, why does value accrue to this company?"