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The laser voltage probe (LVP) is a laser-based voltage and timing waveform acquisition system which is used to perform failure analysis on flip-chip integrated circuits. The device to be analyzed is de-encapsulated in order to expose the silicon surface. The silicon substrate is thinned mechanically using a back side mechanical thinning tool. The thinned device is then mounted on a movable stage and connected to an electrical stimulus source. Signal measurements are performed through the back side of the device after substrate thinning has been performed. The device being probed must be electrically stimulated using a repeating test pattern, with a trigger pulse provided to the LVP as reference. The operation of the LVP is similar to that of a sampling oscilloscope.

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  • Laser voltage prober (en)
  • Sonda di tensione a laser (it)
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  • The laser voltage probe (LVP) is a laser-based voltage and timing waveform acquisition system which is used to perform failure analysis on flip-chip integrated circuits. The device to be analyzed is de-encapsulated in order to expose the silicon surface. The silicon substrate is thinned mechanically using a back side mechanical thinning tool. The thinned device is then mounted on a movable stage and connected to an electrical stimulus source. Signal measurements are performed through the back side of the device after substrate thinning has been performed. The device being probed must be electrically stimulated using a repeating test pattern, with a trigger pulse provided to the LVP as reference. The operation of the LVP is similar to that of a sampling oscilloscope. (en)
  • La sonda di tensione a laser è un sistema di acquisizione di tensioni in forma grafica basato sul laser che viene utilizzato per eseguire l'analisi guasti sui circuiti integrati a piastrine senza adduttori. Il dispositivo che deve essere analizzato viene decapsulato per esporre la superficie di silicio. Il substrato di silicio viene assottigliato meccanicamente usando un attrezzo di assottigliamento. Il dispositivo assottigliato viene poi montato su un tavolino traslatore e collegato ad una sorgente di sollecitazione elettrica. Le misurazioni dei segnali sono eseguite attraverso il lato posteriore del dispositivo dopo avere effettuato l'assottigliamento del substrato. Il dispositivo in corso di sondaggio deve venire stimolato elettricamente usando uno schema di prova iterativo, con un impu (it)
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  • The laser voltage probe (LVP) is a laser-based voltage and timing waveform acquisition system which is used to perform failure analysis on flip-chip integrated circuits. The device to be analyzed is de-encapsulated in order to expose the silicon surface. The silicon substrate is thinned mechanically using a back side mechanical thinning tool. The thinned device is then mounted on a movable stage and connected to an electrical stimulus source. Signal measurements are performed through the back side of the device after substrate thinning has been performed. The device being probed must be electrically stimulated using a repeating test pattern, with a trigger pulse provided to the LVP as reference. The operation of the LVP is similar to that of a sampling oscilloscope. (en)
  • La sonda di tensione a laser è un sistema di acquisizione di tensioni in forma grafica basato sul laser che viene utilizzato per eseguire l'analisi guasti sui circuiti integrati a piastrine senza adduttori. Il dispositivo che deve essere analizzato viene decapsulato per esporre la superficie di silicio. Il substrato di silicio viene assottigliato meccanicamente usando un attrezzo di assottigliamento. Il dispositivo assottigliato viene poi montato su un tavolino traslatore e collegato ad una sorgente di sollecitazione elettrica. Le misurazioni dei segnali sono eseguite attraverso il lato posteriore del dispositivo dopo avere effettuato l'assottigliamento del substrato. Il dispositivo in corso di sondaggio deve venire stimolato elettricamente usando uno schema di prova iterativo, con un impulso di scatto di riferimento fornito alla sonda. Il funzionamento della sonda di tensione a laser è come quello di un oscilloscopio. (it)
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