Structure for using a portion of an integrated circuit die

Details Structure for using a portion of an integrated circuit die Structure for using a portion of an integrated circuit die

1992-11-13

1994-10-11

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Having fuse element

365200, 365201, 365182, 257782, G11C 700

Patent

active

053553446

ABSTRACT:
Two addresses of an integrated circuit are selected to define a portion of the die which is functional and the portion of the die which will not be used. An input structure for addresses, which may be added to part of the electrostatic discharge (ESD) input structure of a pin, allows an address signal to be set to a predetermined logic level and to not be bonded out to the package. Additionally, another input structure allows the mapping of a signal pin to be changed. The function of a pin may need to be changed to accommodate a pinout for a different density device. This is useful when a die is put into a smaller density device package which has a pin out that does not accommodate the die. In this way, partially functional die that previously were discarded may be utilized, thereby recouping potential losses during manufacturing.

REFERENCES:
patent: 4446534 (1984-05-01), Smith
patent: 4833650 (1989-05-01), Hirayama et al.

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