Generating sets of tailored laser pulses

H - Electricity – 04 – J

Patent

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H04J 14/02 (2006.01)

Patent

CA 2535706

In a master oscillator power amplifier, a driver (208) of a diode laser (202) is specially controlled to generate a set of two or more injection laser pulses that are injected into a power amplifier (204) operated in an unsaturated state to generate a set (50) of laser pulses (52) that replicate the temporal power profile of the injection laser pulses to remove a conductive link (22) and/or its overlying passivation layer (44) in a memory or other IC chip. Each set (50) includes at least one specially tailored pulse (52) and/or two or more pulses (50) having different temporal power profiles. The duration of the set (50) is short enough to be treated as a single "pulse" by conventional positioning systems (380) to perform on-the-fly link removal without stopping.

Dans un amplificateur de puissance à oscillateur principal, un pilote (208) d'une diode laser (202) est commandé de façon particulière pour produire un ensemble d'au moins deux impulsions laser à injection qui sont injectées dans un amplificateur de puissance (204) qui fonctionne dans un état non saturé pour produire un ensemble (50) d'impulsions laser (52) qui répliquent le profil de puissance temporelle des impulsions laser à injection afin d'éliminer un lien conducteur (22) et/ou sa couche de passivation sus-jacente (44) dans une mémoire ou une autre puce à CI. Chaque ensemble (50) comprend au moins une impulsion particulière (52) et/ou au moins deux impulsions (50) ayant des profils de puissance temporelle différents. La durée de l'ensemble (50) est assez courte pour être traitée comme "simple impulsion" par des systèmes de positionnement conventionnels (380) pour réaliser une suppression de lien à la volée sans interruption.

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