PUF CELL ARRAY, SYSTEM AND METHOD OF MANUFACTURING SAME
First Claim
1. A physically unclonable function (PUF) cell array comprising:
- a first PUF cell arranged in a first column in a first direction, the first PUF cell comprising;
a first set of conductive structures extending in the first direction and a second direction different from the first direction, the first set of conductive structures being on a first metal layer, and including a first conductive structure extending in at least the second direction and a second conductive structure extending in at least the second direction and being separated from the first conductive structure in the first direction; and
a second PUF cell arranged in a second column in the first direction, the second PUF cell comprising;
a second set of conductive structures extending in the first direction and the second direction, being on the first metal layer and including a third conductive structure extending in at least the second direction and a fourth conductive structure extending in at least the second direction and being separated from the third conductive structure in the first direction;
wherein at least the first conductive structure and the third conductive structure, or the second conductive structure and the fourth conductive structure are symmetric to each other with respect to a central line of at least the first PUF cell or the second PUF cell extending in the second direction.
1 Assignment
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Accused Products
Abstract
A physically unclonable function (PUF) cell array includes a first PUF cell arranged in a first column in a first direction and a second PUF cell arranged in a second column in the first direction. The first PUF cell includes a first set of conductive structures extending in the first and a second direction. The second PUF cell includes a second set of conductive structures extending in the first and the second direction. The first PUF cell includes a first conductive structure and a second conductive structure extending in the second direction. The second PUF cell includes a third conductive structure and a fourth conductive structure extending in the second direction. The first and third conductive structure or the second and fourth conductive structure are symmetric to each other with respect to a central line of at least the first or second PUF cell extending in the second direction.
1 Citation
20 Claims
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1. A physically unclonable function (PUF) cell array comprising:
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a first PUF cell arranged in a first column in a first direction, the first PUF cell comprising; a first set of conductive structures extending in the first direction and a second direction different from the first direction, the first set of conductive structures being on a first metal layer, and including a first conductive structure extending in at least the second direction and a second conductive structure extending in at least the second direction and being separated from the first conductive structure in the first direction; and a second PUF cell arranged in a second column in the first direction, the second PUF cell comprising; a second set of conductive structures extending in the first direction and the second direction, being on the first metal layer and including a third conductive structure extending in at least the second direction and a fourth conductive structure extending in at least the second direction and being separated from the third conductive structure in the first direction; wherein at least the first conductive structure and the third conductive structure, or the second conductive structure and the fourth conductive structure are symmetric to each other with respect to a central line of at least the first PUF cell or the second PUF cell extending in the second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of forming a physically unclonable function (PUF) cell array, the method comprising:
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generating a first layout design of a first PUF cell, the first layout design being arranged in a first column in a first direction, the generating the first layout design comprising; generating a first set of conductive feature layout patterns extending in the first direction and a second direction different from the first direction, the first set of conductive feature layout patterns being on a first layout level, and including a first conductive feature layout pattern extending in at least the second direction and a second conductive feature layout pattern extending in at least the second direction and being separated from the first conductive feature layout pattern in the first direction; generating a second layout design of a second PUF cell, the second layout design being arranged in a second column in the first direction, the generating the second layout design comprising; generating a second set of conductive feature layout patterns extending in the first direction and the second direction, the second set of conductive feature layout patterns being on the first layout level, and including a third conductive feature layout pattern extending in at least the second direction and a fourth conductive feature layout pattern extending in at least the second direction and being separated from the third conductive feature layout pattern in the first direction; and wherein at least the first conductive feature layout pattern and the third conductive feature layout pattern, or the second conductive feature layout pattern and the fourth conductive feature layout pattern are symmetric to each other with respect to a central line of at least the first layout design or the second layout design extending in the second direction, at least one of the above generating operations is performed by a hardware processor, and at least the first layout design or the second layout design is stored in a non-transitory computer-readable medium; and manufacturing the PUF cell array based on at least the first layout design or the second layout design. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A system for designing a physically unclonable function (PUF) cell array, the system comprises:
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a non-transitory computer readable medium configured to store executable instructions; and a processor coupled to the non-transitory computer readable medium, wherein the processor is configured to execute the instructions for; placing a first layout design of a first PUF cell in a first column in a first direction, the placing the first layout design comprising; placing a first set of conductive feature layout patterns on a first layout level, the first set of conductive feature layout patterns extending in the first direction and a second direction different from the first direction, and including a first conductive feature layout pattern extending in at least the second direction and a second conductive feature layout pattern extending in at least the second direction and being separated from the first conductive feature layout pattern in the first direction; placing a second layout design of a second PUF cell in a second column in the first direction, the placing the second layout design comprising; placing a second set of conductive feature layout patterns on the first layout level, the second set of conductive feature layout patterns extending in the first direction and the second direction, and including a third conductive feature layout pattern extending in at least the second direction and a fourth conductive feature layout pattern extending in at least the second direction and being separated from the third conductive feature layout pattern in the first direction; wherein at least the first conductive feature layout pattern and the third conductive feature layout pattern, or the second conductive feature layout pattern and the fourth conductive feature layout pattern are symmetric to each other with respect to a first central line of at least the first layout design or the second layout design extending in the second direction. - View Dependent Claims (19, 20)
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Specification