Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Passive components in ics
Reexamination Certificate
2011-01-11
2011-01-11
Mai, Anh D (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Passive components in ics
C257SE23149, C257SE23150
Reexamination Certificate
active
07868417
ABSTRACT:
A semiconductor device includes plural fuse elements which can be disconnected by irradiating a laser beam, and attenuation members which are located between the plural fuse elements as viewed two-dimensionally and can attenuate the laser beam. Each attenuation member includes plural columnar bodies. With this arrangement, the attenuation members including plural columnar units absorb the laser beam leaked out from a fuse element to be disconnected to a semiconductor substrate side. The laser beam is also scattered by Fresnel diffraction. Therefore, the columnar body can efficiently attenuate the laser beam, without generating a crack in the insulation film by absorbing excessive energy.
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Japanese Office Action dated Feb. 3, 2009 with Partial English-Language Translation.
Elpida Memory Inc.
Mai Anh D
McGinn IP Law Group PLLC
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