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This paper describes a way to improve commonly used static laser stimulation techniques. Several analysis and set-up modules are presented to enrich them. Quickly assembled, combinable and easily adaptable, they allow for example to face atypical failure analysis cases. Effectiveness of this methodology is verified by two cases study. The proposed methodology further extends the capabilities of Laser...
A preliminary scheme was developed for base-mounted solid-propellant retro rocket motors to self-penetrate the Orion Crew Module heat shield for configurations with the heat shield retained during landings on Earth. In this system the motors propel impactors into structural push plates, which in turn push through the heat shield ablator material. The push plates are sized such that the port created...
Technology advances in mixed-mode and analog ICs, involving multiple functions inside the device, make Failure Analysis (FA) difficult. Variation Mapping techniques based on Thermal Laser Stimulation (TLS [1],[2],[3]) have already proven their efficiency for the localization of a physical defect or design weakness. Their extension will play a key FA role but the impact of IR laser beam on the basic...
Thermal Laser Stimulation images are normally acquired using an averaging scheme to improve signal detection. However it does not work well when strong perturbation signals are present. For these cases correlation methods, which are more effective at extracting weak signals embedded in strong perturbations, become more important for TLS techniques.
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