Back to results
US 6,333,878 B2Granted
Semiconductor memory device having program circuit
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorTsukasa Ooishi
Life of this patent
Estimating the term…
Abstract
A memory core part includes a program part and a voltage supply part. The program part includes a program structure part, a latch part and an address compare part. The program structure part includes an electric fuse blown with a program voltage. The voltage supply part supplies the program voltage to the program part every repair address. The latch part holds the program state in the program structure part on the basis of a transfer signal. The address compare part outputs a spare determination result on the basis of an input address and the latched program state.
Claims13
A semiconductor device, comprising:
- a program circuit for programming an internal state;
- a latch circuit for latching an output from said program circuit;
- a transfer gate provided between said program circuit and said latch circuit for transferring an output from said program circuit;
- and
- an internal circuit for performing an operation on an output from said latch circuit.
2 more elements
Dependencies are inferred from the claim text.