Measuring device and method for ascertaining a pressure map
First Claim
1. A measuring device for determining a pressure map before and/or during a bond process, the measuring device comprising:
- a sensor comprising a first substrate, a second substrate, and a measurement layer by which the first substrate and the second substrate are permanently connected, the measurement layer being disposed between the first substrate and the second substrate, the measurement layer including an optical material having optical properties that are configured to change when exposed to pressure applied to the measurement layer, the sensor being disposed between a first pressure body and a second pressure body, the first pressure body being separated from the measurement layer by the first substrate, the second pressure body being separated from the measurement layer by the second substrate, the pressure bodies being configured to apply said pressure to the measurement layer,a transmitter located on a peripheral edge of the measurement layer for emission of signals in the form of electromagnetic waves along a first signal route which runs through the measurement layer and at least one other signal route which runs through the measurement layer, the emitted signals being configured to change when exposed to changes in pressure applied by the pressure bodies to the measurement layer,a receiver located on the peripheral edge of the measurement layer, the receiver being configured to receive the emitted signals of the first signal route and the at least one other signal route through the measurement layer and record the received signals, andan evaluation unit configured to evaluate the received and recorded signals along the signal routes and form the pressure map by determining localized pressure values from the evaluated signals by reconstruction of the evaluated signals.
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Accused Products
Abstract
A measuring device for determining a pressure map during application of pressure to at least one measurement layer between a first pressure body and a second pressure body the measuring device comprising: (i) at least one transmitter located on one peripheral edge of the measurement layer for emission of signals in the form of electromagnetic waves along a first signal route which runs through the measurement layer and at least one other signal route which runs through the measurement layer, and (ii) at least one receiver located on the peripheral edge for reception of the signals of the first signal route and other signal route(s), which signals are sent by the transmitter through the measurement layer and can be changed when pressure is applied. Furthermore this invention relates to a corresponding method.
103 Citations
21 Claims
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1. A measuring device for determining a pressure map before and/or during a bond process, the measuring device comprising:
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a sensor comprising a first substrate, a second substrate, and a measurement layer by which the first substrate and the second substrate are permanently connected, the measurement layer being disposed between the first substrate and the second substrate, the measurement layer including an optical material having optical properties that are configured to change when exposed to pressure applied to the measurement layer, the sensor being disposed between a first pressure body and a second pressure body, the first pressure body being separated from the measurement layer by the first substrate, the second pressure body being separated from the measurement layer by the second substrate, the pressure bodies being configured to apply said pressure to the measurement layer, a transmitter located on a peripheral edge of the measurement layer for emission of signals in the form of electromagnetic waves along a first signal route which runs through the measurement layer and at least one other signal route which runs through the measurement layer, the emitted signals being configured to change when exposed to changes in pressure applied by the pressure bodies to the measurement layer, a receiver located on the peripheral edge of the measurement layer, the receiver being configured to receive the emitted signals of the first signal route and the at least one other signal route through the measurement layer and record the received signals, and an evaluation unit configured to evaluate the received and recorded signals along the signal routes and form the pressure map by determining localized pressure values from the evaluated signals by reconstruction of the evaluated signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for determining a pressure map before and/or during a bond process, the method comprising:
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arranging a sensor of a measuring device between a first pressure body and a second pressure body, the sensor comprising a first substrate, a second substrate, and a measurement layer by which the first substrate and the second substrate are permanently connected, the measurement layer being disposed between the first substrate and the second substrate, the measurement layer including an optical material having optical properties that are configured to change when exposed to pressure applied to the measurement layer, applying said pressure to the measurement layer by the pressure bodies, the first pressure body being separated from the measurement layer by the first substrate, the second pressure body being separated from the measurement layer by the second substrate, emitting, using a transmitter of the measuring device, signals in the form of electromagnetic waves along a first signal route running through the measurement layer and at least one other signal route which runs through the measurement layer such that the emitted signals are changed when exposed to changes in pressure applied by the pressure bodies to the measurement layer, the transmitter being located on a peripheral edge of the measurement layer, receiving, using a receiver of the measuring device, the emitted signals of the first signal route and the at least one other signal route, the receiver being located on the peripheral edge of the measurement layer, recording, using the receiver, said received signals, evaluating, using an evaluation unit of the measuring device, the received and recorded signals along the signal routes, and forming, using the evaluation unit, the pressure map by determining localized pressure values from the evaluated signals by reconstruction of the evaluated signals. - View Dependent Claims (20)
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21. A measuring device for determining a pressure map before and/or during a bond process, the measuring device comprising:
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a measurement layer disposed between a first substrate and a second substrate, the measurement layer including an optical material permanently cementing the first substrate to the second substrate, the optical material having optical properties that are configured to change when exposed to pressure applied to the measurement layer, the sensor being disposed between a first pressure body and a second pressure body, the first pressure body being separated from the measurement layer by the first substrate, the second pressure body being separated from the measurement layer by the second substrate, the pressure bodies being configured to apply said pressure to the measurement layer, a transmitter located on a peripheral edge of the measurement layer for emission of signals in the form of electromagnetic waves along a first signal route which runs through the measurement layer and at least one other signal route which runs through the measurement layer, the emitted signals being configured to change when exposed to changes in pressure applied by the pressure bodies to the measurement layer, a receiver located on the peripheral edge of the measurement layer, the receiver being configured to receive the emitted signals of the first signal route and the at least one other signal route through the measurement layer and record the received signals, and an evaluation unit configured to evaluate the received and recorded signals along the signal routes and form the pressure map by determining localized pressure values from the evaluated signals by reconstruction of the evaluated signals.
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Specification