Method for implementing grid-based crosscheck test structures an

Details Method for implementing grid-based crosscheck test structures an Method for implementing grid-based crosscheck test structures an

1989-11-28

1991-08-06

Hearn, Brian E.

Fishing, trapping, and vermin destroying

437 7, 437 8, 437 57, 437 48, 324158R, 324158F, H01L 2170, H01L 2700

Patent

active

050377710

ABSTRACT:
Methods for fashioning CrossCheck testing structures allow the testing of high density integrated circuit structures to be made in a space efficient manner. In one method, sense lines and probe lines are disposed in different layers perpendicular to one another and a diffusion line is overlaid in such a manner as to form a sense transistor. In another method, a pair of probe lines are routed between each pair of cells in a manner to form a sense transistor. In still another embodiment circuit layout requires no modification to the basic macrocell structure and a metal interconnection layer is used to couple sense transistors to individual cells.

REFERENCES:
patent: 4426773 (1984-01-01), Hargis
patent: 4457066 (1984-07-01), Rao et al.
patent: 4516312 (1985-05-01), Tomita
patent: 4691434 (1987-09-01), Percival et al.
patent: 4749947 (1988-06-01), Gheewala
patent: 4902638 (1990-02-01), Muto
Y. Suehiro et al., "A 120K-Gate Usable CMOS Sea of Gates Packing 1.3M Transistors", Proceedings of the IEEE 1988 Custom Integrated Circuits Conference, pp. 20.5.1-20.5.4.
K. Sawada, "A 72K CMOS Channelless Gate Array with Embedded 1Mbit Dynamic RAM", Proceedings of the IEEE 1988 Custom Integrated Circuits Conference, pp. 20.3.1-20.3.4.

Affiliated with

Also associated with

Rating

Method for implementing grid-based crosscheck test structures an does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for implementing grid-based crosscheck test structures an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for implementing grid-based crosscheck test structures an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1986795