Electric fuse cutoff control circuit and semiconductor device
AssigneeFujitsu Microelectronics Limited
InventorTatsuru MATSUO
Life of this patent
Estimating the term…
Abstract
An electric fuse cutoff control circuit controlling cutoff of a plurality of electric fuses including: a cutoff information storage circuit adapted to store cutoff information about whether or not each of the plurality of electric fuses is cut off; a cutoff information control circuit controlling the cutoff of the plurality of electric fuses based on an output signal of the cutoff information storage circuit; and a cutoff information renewal circuit receiving an output signal of the cutoff information control circuit and renewing the cutoff information set for the cutoff information storage circuit.
Claims20
An electric fuse cutoff control circuit configured to control cutoff of a plurality of electric fuses, comprising:
- a cutoff information storage circuit configured to store cutoff information about whether or not each of the plurality of electric fuses is cut off;
- a cutoff information control circuit configured to control the cutoff of the plurality of electric fuses based on an output signal of the cutoff information storage circuit;
- and
- a cutoff information renewal circuit configured to receive an output signal of the cutoff information control circuit and renewing the cutoff information set for the cutoff information storage circuit.
A semiconductor device, comprising:
- an electric fuse cutoff control circuit configured to control cutoff of a plurality of electric fuses, including:
- a cutoff information storage circuit configured to store cutoff information about whether or not each of the plurality of electric fuses is cut off;
- a cutoff information control circuit configured to control the cutoff of the plurality of electric fuses based on an output signal of the cutoff information storage circuit;
- and
- a cutoff information renewal circuit configured to receive an output signal of the cutoff information control circuit and renewing the cutoff information set for the cutoff information storage circuit;
- an electric fuse circuit including the plurality of electric fuses, the cutoff of the plurality of electric fuses being controlled by the electric fuse cutoff control circuit;
- and
- an internal circuit for which the electric fuse circuit performs a given setting.
Dependencies are inferred from the claim text.