Method and apparatus for performing pattern alignment to plurality of dies
AssigneeMicronic Mydata AB
InventorsMikael Wahlsten, Per-Erik Gustafsson
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AssigneeMicronic Mydata AB
InventorsMikael Wahlsten, Per-Erik Gustafsson
Estimating the term…
A method for patterning a workpiece in a direct write machine in the manufacturing of a multilayer stack, wherein a first circuit pattern comprising patterns for connection points is transformed according to determined fitting tolerances to fit to connection points of a second circuit pattern and to circuit pattern(s) of specific features such as random placed dies, or group of dies, on or in the workpiece. The second layer may be a previously formed layer or a layer to be formed on the same workpiece or on a different workpiece for the stack. Pattern data associated with selected die is transformed into adjusted circuit pattern data using the transformation defined by the transformed positions such that the circuit pattern is fitted to the selected die(s).
A method for patterning a layer of a first workpiece in a direct write machine in the manufacturing of a multilayer stack, where the direct write machine is provided with a coordinate system for controlling write operations on a first layer of the first workpiece having a plurality of dies distributed thereon, wherein the plurality of dies each have a plurality of connection points;
The method of any of the preceding claims, wherein the second layer(s) has been previously formed or is to be subsequently formed on the same first workpiece or on/for a second workpiece that is to be joined to the first workpiece in the stack.
The method of any of the preceding claims, wherein the required fitting tolerance(s) is determined as a position and/or a surface area covering a projection of the connection point of the first circuit pattern and a projection of the connection point of the at least one second circuit pattern when the patterns are aligned.
The method of any of the preceding claims, wherein the required fitting tolerance(s) is a distance of less than 50 μm from the ideal position.
The method of any of the preceding claims, wherein the preparing of the adjusted first circuit pattern data comprises:
The method of any of the preceding claims, wherein the retrieving of first circuit data of the first circuit pattern is comprising the steps of:
The method of any of the preceding claims, wherein the preparing of the adjusted first circuit pattern data comprises:
The method of any of the preceding claims, wherein the second layer(s) has been previously formed or is to be subsequently formed on the first workpiece.
The method of any of the preceding claims, wherein the required fitting tolerance is determined as a position and/or a surface area covering a projection of the connection point of the first circuit pattern and a projection of the connection point of the second circuit pattern when the patterns are aligned.
The method of any of the preceding claims, wherein the required fitting tolerance is determined by transforming said patterns and said layers to a common plane, and calculating the required fitting tolerance based on distances between ideal pattern data and adjusted pattern data in said common plane.
The method of any of the preceding claims, wherein the adjusted first circuit pattern data is rendered to be fitted to the plurality of dies, or group of dies, in a way such that the sub-portions of the adjusted pattern data each represents a sub-area of the workpiece associated with a particular die, or group of dies, and where each of said sub-areas includes, or covers, said particular die, or group of dies.
The method of any of the preceding claims, wherein at least a portion of the first workpiece area is divided into sub-areas that each are to be represented by sub-portions of the adjusted pattern data, and wherein the sub-areas are identified by the received measurement data and/or the workpiece area is divided into sub-areas by the use of a pre-determined algorithm.
The method of any of the preceding claims, wherein the sub-areas are automatically identified by the received measurement data and/or the first workpiece area is automatically divided into sub-areas by the use of the pre-determined algorithm.
The method of any of the preceding claims, wherein a plurality of said sub-portions of the adjusted first circuit pattern data are rendered to fit to respective sub-area within certain requirements or pre-settable deviation parameters.
The method of any of the preceding claims, wherein the certain requirement or pre-settable deviation parameters are associated with at least one of:
The method of any of the preceding claims, wherein the whole adjusted circuit pattern data is fitted to the plurality of dies, or group of dies, on the workpiece within a pre-settable deviation parameter or set of deviation parameters.
The method of any of the preceding claims, wherein the pre-settable deviation parameters include both parameter(s) associated with location and parameter(s) associated with orientation.
The method of any of the preceding claims, wherein the adjusted circuit pattern data associated with a particular die, or group of dies, is fitted individually to said particular die, or group of dies.
The method of any of the preceding claims, wherein the plurality of dies, or group of dies, includes all of the dies distributed on the workpiece.
The method of any of the preceding claims, wherein the circuit pattern data associated with at least one of the dies, or group of dies, on the workpiece is adjusted individually and independently of circuit pattern data associated with the other dies on the workpiece.
The method of any of the preceding claims, wherein the circuit pattern data associated with each of the dies, or group of dies, on the workpiece is adjusted individually and independently of circuit pattern data associated with any of the other dies on the workpiece.
The method of any of the preceding claims, wherein the positions of the dies, or group of dies, in terms of both location and orientation together with the workpiece location and orientation relative the writer coordinate system is used to determine a transformation of the measured positions defined in the coordinate system of the direct write machine.
The method of any of the preceding claims, wherein the position of the dies, or group of dies, is determined in terms of:
The method of any of the preceding claims, where the adjusted circuit pattern data represents the whole workpiece having all of the dies distributed thereon
The method of any of the preceding claims, wherein the at least one reference feature of the workpiece is determined by a selection or a combination of:
The method of any of the preceding claims wherein a reference feature of a die is determined by a selection or a combination of:
The method of any of the preceding claims, wherein the measuring of the position of a die is determined by a selection of:
The method of any of the preceding claims, wherein the preparing of adjusted circuit pattern data comprises:
The method of any of the preceding claims, wherein the preparing of adjusted circuit pattern data comprises:
The method of any of the preceding claims, wherein the preparing of adjusted circuit pattern data comprises:
The method of any of the preceding claims, wherein the transformation of the pattern data, vector data or coordinate system to fit the spatial positions of the die(s) or groups/clusters of dies could be either linear or non-linear such as e.g. a spline, polynomial or projective.
The method of any of the preceding claims, wherein the measurement data indicating the position of the dies or of a group/cluster of dies on the workpiece is determined:
The method of any of the preceding claims, wherein the preparing of adjusted circuit pattern data is based solely on measurements and data associated with the workpiece, thereby enabling measurement and writing time in real time.
The method of any of the preceding claims, where a die is a passive component, an active component, or any other component associated with electronics.
The method of any of the preceding claims, wherein the preparing of adjusted circuit pattern data comprises transforming of the pattern data to fit the positions of the dies, or group of dies, using a selection of linear or non-linear transformations.
The method of any of the preceding claims, wherein transforming the measured positions to transformed positions of the dies, or group of dies, comprises a selection of linear or non-linear transformations.
An apparatus for patterning a layer of a workpiece in a direct write machine in the manufacturing of a multilayer stack, where the direct write machine is provided with a coordinate system for controlling write operations on a first layer of the first workpiece having a plurality of dies distributed thereon, wherein the plurality of dies each have a plurality of connection points;
A computer program product for patterning a layer of a workpiece in a direct write machine in the manufacturing of a multilayer stack, where the direct write machine is provided with a coordinate system for controlling write operations on a first layer of the first workpiece having a plurality of dies distributed thereon, wherein the plurality of dies each have a plurality of connection points;
Dependencies are inferred from the claim text.