System and method for detecting substrate and manufacturing device
First Claim
1. A detection system for detecting a substrate, comprising an emitter and a controller unit, whereinthe emitter is configured for providing a first reference light and a second reference light, the first reference light propagates to the controller unit, the second reference light is modulated by the substrate to generate a test light, and the test light propagates to the controller unit;
- andthe controller unit is configured for obtaining and comparing a power measured in watts of the first reference light and a power measured in watts of the test light so as to determine whether a foreign matter is present on a surface of the substrate,wherein the second reference light entering the substrate from the surface of the substrate leaves the substrate from an outer surface that is comprised by the substrate and is opposite to the surface of the substrate, and then is received by the controller unit.
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Abstract
A system and a method for detecting a substrate and a manufacturing device are disclosed. The detection system includes: an emitting unit and a control unit; wherein the emitting unit provides a first reference light and a second reference light, the first reference light propagates to the control unit, the second reference light is modulated by the substrate to generate a test light, the test light propagates to the control unit; the control unit obtains and compares a power of the first reference light and a power of the test light so as to determine whether a foreign matter is present on a surface of the substrate. The detection system can prevent foreign matters such as photoresist from influencing other manufacturing devices such as cleaning and deposition devices, which is beneficial to the maintenance and service of the manufacturing devices.
13 Citations
19 Claims
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1. A detection system for detecting a substrate, comprising an emitter and a controller unit, wherein
the emitter is configured for providing a first reference light and a second reference light, the first reference light propagates to the controller unit, the second reference light is modulated by the substrate to generate a test light, and the test light propagates to the controller unit; - and
the controller unit is configured for obtaining and comparing a power measured in watts of the first reference light and a power measured in watts of the test light so as to determine whether a foreign matter is present on a surface of the substrate, wherein the second reference light entering the substrate from the surface of the substrate leaves the substrate from an outer surface that is comprised by the substrate and is opposite to the surface of the substrate, and then is received by the controller unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A detection method for detecting a substrate, comprising:
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providing a first reference light and a second reference light, the second reference light is modulated by the substrate to generate a test light; obtaining and comparing a power measured in watts of the first reference light and a power measured in watts of the test light so as to determine whether a foreign matter is present on a surface of the substrate, wherein the second reference light entering the substrate from the surface of the substrate leaves the substrate from an outer surface that is comprised by the substrate and is opposite to the surface of the substrate, and then is received by the controller unit. - View Dependent Claims (18, 19)
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Specification