Wear-out monitor device
First Claim
1. An integrated circuit device comprising a monitor device comprising a plurality of monitor structures each comprising a reservoir and a corresponding diffusion region into which a diffusant from the reservoir diffuses, wherein different ones of the monitor structures are configured differently to record indications of an exposure of a core circuit to different stress conditions by diffusing respective diffusants at different diffusion rates.
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Accused Products
Abstract
The disclosed technology generally relates to integrated circuit devices with wear out monitoring capability. An integrated circuit device includes a wear-out monitor device configured to record an indication of wear-out of a core circuit separated from the wear-out monitor device, wherein the indication is associated with localized diffusion of a diffusant within the wear-out monitor device in response to a wear-out stress that causes the wear-out of the core circuit.
95 Citations
26 Claims
- 1. An integrated circuit device comprising a monitor device comprising a plurality of monitor structures each comprising a reservoir and a corresponding diffusion region into which a diffusant from the reservoir diffuses, wherein different ones of the monitor structures are configured differently to record indications of an exposure of a core circuit to different stress conditions by diffusing respective diffusants at different diffusion rates.
- 11. An integrated circuit device comprising a monitor device configured to record an indication of an exposure of a core circuit to a stress condition without being powered, wherein the monitor device comprises a reservoir and a diffusion region into which a diffusant from the reservoir diffuses and is configured to initiate recording the indication of the exposure by diffusing the diffusant through a diffusion barrier into the diffusion region in response to an applied stimulus.
- 18. An integrated circuit device comprising a monitor device comprising a reservoir and a diffusion region into which a diffusant from the reservoir diffuses, wherein the monitor device is configured to distinguishably record indications of a core circuit being exposed to stress conditions at different times by diffusing the diffusant from the reservoir into the diffusion region in response to the stress conditions at different times.
Specification