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US 2004/0057293 A1Published application
Hybrid fuses for redundancy
AssigneesInfineon Technologies AG, Kabushiki Kaisha Toshiba
InventorsThomas Roehr, Hans-Oliver Joachim, Norbert Rehm, Tadashi Miyakawa
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Abstract
A redundancy unit comprising first and second fuse blocks for programming the redundancy element is disclosed. One fuse block has laser blowable fuses and the other electrical fuses. The redundancy unit can be programmed by either one of the fuse blocks, enabling the redundancy unit to able to be used for defects identified before packaging and as well as after.
Claims17
A redundancy unit comprising:
- a first fuse block comprising at least one first fuse;
- a second fuse block comprising at least one second fuse;
- and
- a redundant element coupled to the first and second fuse blocks, the redundant element can be programmed by either the first or second fuse blocks.
1 more element
Dependencies are inferred from the claim text.