Integrated circuit system employing stress-engineered spacers
First Claim
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1. A method for manufacturing an integrated circuit system comprising:
- providing a substrate including a first region with a first device and a second device and a second region with a resistor device;
configuring each of the first device, the second device, and the resistor device to include a gate, a gate dielectric, a first spacer and a second spacer;
forming a stress inducing layer over the first region and the second region;
processing at least a portion of the stress inducing layer formed over the first region to alter the stress within the stress inducing layer; and
forming a third spacer adjacent the second spacer of the first device and the second device from the stress inducing layer, the stress inducing layer including a portion remaining over the second region with a stress altered boundary between the second device and the resistor device.
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Abstract
An integrated circuit system that includes: providing a substrate including a first region with a first device and a second device and a second region with a resistance device; configuring the first device, the second device, and the resistance device to include a first spacer and a second spacer; forming a stress inducing layer over the first region and the second region; processing at least a portion of the stress inducing layer formed over the first region to alter the stress within the stress inducing layer; and forming a third spacer adjacent the second spacer of the first device and the second device from the stress inducing layer.
36 Citations
10 Claims
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1. A method for manufacturing an integrated circuit system comprising:
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providing a substrate including a first region with a first device and a second device and a second region with a resistor device; configuring each of the first device, the second device, and the resistor device to include a gate, a gate dielectric, a first spacer and a second spacer; forming a stress inducing layer over the first region and the second region; processing at least a portion of the stress inducing layer formed over the first region to alter the stress within the stress inducing layer; and forming a third spacer adjacent the second spacer of the first device and the second device from the stress inducing layer, the stress inducing layer including a portion remaining over the second region with a stress altered boundary between the second device and the resistor device. - View Dependent Claims (2, 3, 4, 5)
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6. A method for manufacturing an integrated circuit system comprising:
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providing a substrate including a first region with a first device and a second device and a second region with a resistor device; configuring each of the first device, the second device, and the resistor device to include a gate, a gate dielectric, a first spacer and a second spacer; forming a stress inducing layer over the first region and the second region; processing at least a portion of the stress inducing layer formed over the second device to alter the stress within the stress inducing layer; and forming a third spacer from the stress inducing layer to create a first stress level in the first device and a second stress level in the second device, the first stress level differing from the second stress level and a portion of the stress inducing layer remaining over the second region with a stress altered boundary between the second device and the resistor device. - View Dependent Claims (7, 8, 9, 10)
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Specification