PATENT DOCUMENT

Publication Number: US-9069418-B2
Application Number: US-13503808-A
Country: US
Kind Code: B2

Title: High resistivity metal fan out

Abstract:
The formation of metal traces in the border areas of a touch sensor panel to provide improved reliability, better noise rejection, and lower manufacturing costs is disclosed. The metal traces can be coupled to rows on the touch sensor panel in an interleaved manner, so that any two successive rows can be coupled to metal traces in border areas on opposite sides of the touch sensor panel. In addition, by utilizing the full width available in the border areas in some embodiments, the metal traces can be formed from higher resistivity metal, which can reduce manufacturing costs and improve trace reliability. The wider traces can also provide better noise immunity from noise sources such as an LCD by providing a larger fixed-potential surface area and by more effectively coupling the drive lines to the fixed potential.

Claims:
What is claimed is: 
     
       1. Conductive traces for routing a plurality of rows in a touch sensor panel to a single edge of the touch sensor panel, comprising:
 a stackup of a first conductive material patterned into traces in a border area of the touch sensor panel, the traces configured such that the traces are electrically isolated from one another and occupy substantially a full area of the border area, wherein at least one trace has varying width along the length of the trace, and wherein the plurality of rows form at least a portion of a plurality of sensors. 
 
     
     
       2. The traces of  claim 1 , wherein the traces are coupled to every other row in an interleaved manner such that at least one trace is present along a full length of the border area. 
     
     
       3. The traces of  claim 1 , wherein the traces in any particular portion of the border area alongside a row have substantially the same width. 
     
     
       4. The traces of  claim 1 , wherein the first conductive material has a resistivity greater than about 0.4 ohms per square. 
     
     
       5. The traces of  claim 1 , wherein the first conductive material is Molybdenum/Niobium (Mo/Nb). 
     
     
       6. The traces of  claim 1 , wherein the first conductive material is a stackup of Molybdenum/Niobium (Mo/Nb), Aluminum Neodymium (Al/Nd) and Mo/Nb. 
     
     
       7. The traces of  claim 1 , the touch sensor panel incorporated within a computing system. 
     
     
       8. A touch sensor panel comprising:
 a stackup of a first conductive material patterned into a plurality of traces in a border area of the touch sensor panel and routed to an edge of the touch sensor panel, the traces configured such that the traces are electrically isolated from one another and occupy substantially a full area of the border area, wherein at least one trace has varying width along the length of the trace; and 
 a second conductive material patterned to create a plurality of rows, each row coupled to a different trace, the rows forming least a portion of a plurality of sensors to be routed to the edge of the touch sensor panel. 
 
     
     
       9. A mobile telephone including a touch sensor panel, the touch sensor panel comprising:
 a stackup of a first conductive material patterned into a plurality of traces in a border area of the touch sensor panel and routed to an edge of the touch sensor panel, the traces configured such that the traces are electrically isolated from one another and occupy substantially a full area of the border area, wherein at least one trace has varying width along the length of the trace; and 
 a second conductive material patterned to create a plurality of rows, each row coupled to a different trace, the rows forming at least a portion of a plurality of sensors to be routed to the edge of the touch sensor panel. 
 
     
     
       10. A digital media player including a touch sensor panel, the touch sensor panel comprising:
 a stackup of a first conductive material patterned into a plurality of traces in a border area of the touch sensor panel and routed to an edge of the touch sensor panel, the traces configured such that the traces are electrically isolated from one another and occupy substantially a full area of the border area, wherein at least one trace has varying width along the length of the trace; and 
 a second conductive material patterned to create a plurality of rows, each row coupled to a different trace, the rows forming at least a portion of a plurality of sensors to be routed to the edge of the touch sensor panel.

Description:
FIELD OF THE INVENTION 
     This relates generally to the formation of metal traces on substrates, and more particularly, to the formation of metal traces in the border areas of a touch sensor panel in a manner that allows for higher resistivity conductive materials to be used to improve trace reliability, reduce noise, and lower manufacturing costs. 
     BACKGROUND OF THE INVENTION 
     Many types of input devices are presently available for performing operations in a computing system, such as buttons or keys, mice, trackballs, joysticks, touch sensor panels, touch screens and the like. Touch screens, in particular, are becoming increasingly popular because of their ease and versatility of operation as well as their declining price. Touch screens can include a touch sensor panel, which can be a clear panel with a touch-sensitive surface, and a display device such as a liquid crystal display (LCD) that can be positioned partially or fully behind the panel so that the touch-sensitive surface can cover at least a portion of the viewable area of the display device. Touch screens can allow a user to perform various functions by touching the touch sensor panel using a finger, stylus or other object at a location dictated by a user interface (UI) being displayed by the display device. In general, touch screens can recognize a touch event and the position of the touch event on the touch sensor panel, and the computing system can then interpret the touch event in accordance with the display appearing at the time of the touch event, and thereafter can perform one or more actions based on the touch event. 
     Mutual capacitance touch sensor panels can be formed from a matrix of drive and sense lines of a substantially transparent conductive material such as Indium Tin Oxide (ITO), often arranged in rows and columns in horizontal and vertical directions on a substantially transparent substrate. In some touch sensor panel designs, the substantially transparent drive and/or sense lines can be routed to one edge of the substrate for off-board connections using metal traces in the border areas of the substrate where transparency may not be required. Because these metal traces are thin, low resistance conductive material may be needed. To create such traces, multiple layers of conductive material may be needed to adhere low resistance material to the substrate and form the traces. However, the processing of multiple layers can increase manufacturing costs. In addition, there can be reliability issues involved in the fabrication of stackups of these thin metal layers. Furthermore, these thin metal traces do not provide maximum shielding from noise sources such as the LCD. 
     SUMMARY OF THE INVENTION 
     This relates to the formation of metal traces in the border areas of a touch sensor panel to provide improved reliability, better noise rejection, and lower manufacturing costs. The metal traces can be coupled to rows on the touch sensor panel in an interleaved manner, so that any two successive rows can be coupled to metal traces in border areas on opposite sides of the touch sensor panel. In addition, by utilizing the full width available in the border areas in some embodiments, the metal traces can be formed from higher resistivity metal, which can reduce manufacturing costs and improve trace reliability. The wider traces can also provide better noise immunity from noise sources such as an LCD by providing a larger fixed-potential surface area and by more effectively coupling the drive lines to the fixed potential. 
     By making the metal traces fill up the available width of the border areas, the traces can be wider and thus the overall line resistance of the trace can be lower, or the resistivity of the material can be increased for the same overall line resistance. For example, a single thicker and wider layer of Molybdenum/Niobium (Mo/Nb) having a thickness of about 3000-5000 Å can be formed on a substrate. The higher resistivity of Mo/Nb is compensated for by the increased width and height of the Mo/Nb layer. After the Mo/Nb layer is deposited at the preferred thickness, it can be patterned (etched) to form traces. A layer of conductive material such as ITO can then be formed over the Mo/Nb layer. A conductive material layer can then be patterned to form the drive or sense lines that couple to the metal traces, and can also be patterned over the Mo/Nb traces to form another protective layer for the Mo/Nb traces. A protective layer of material such as silicon oxide (SiO 2 ) can then be formed over the Mo/Nb layer and the conductive material layer. 
     In general, the ability to use higher resistivity material enables more flexibility in the material stack. For example, in two conductive layer embodiments, manufacturing costs can be reduced as compared to three-layer stackups of thin, higher conductivity material. The fewer number of conductive layers also reduces the problem of side wall control present in when multi-layer stackups are patterned. In addition, the wider, thicker traces are generally of higher reliability, because etching defects, corrosion or other environmental effects may not create problems as easily as if the traces were thinner. 
     Although the embodiments described above utilize higher resistivity conductive material, such material need not be used. If low resistivity material is used to form the wide traces, the line resistance can be made even lower. This reduced line resistance can produce a better coupling to ground (or some fixed potential) for the wide row traces, improving the noise shielding effectiveness of the rows. Alternatively, a low resistance material can be used with the traces widths kept thin. The thin metal traces can enable a reduction in the width of the touch sensor panel. For example, a thinned three-layer stackup including low resistance material can be used, and in some cases may be less expensive than to develop an alternate chemistry two-layer stackup. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1   a  illustrates a top view of row traces representing either drive or sense lines and metal traces represented symbolically as thin lines in border areas of a touch sensor panel according to embodiments of the invention. 
         FIG. 1   b  illustrates the exemplary touch sensor panel of  FIG. 1   a , with metal traces drawn with representative widths (not to scale) according to embodiments of the invention. 
         FIG. 1   c  illustrates a close up view of an exemplary location of a border area at which a transition from six to seven metal traces is occurring according to embodiments of the invention. 
         FIG. 2   a  illustrates an exemplary stackup of higher resistivity material that can be used to form wide traces in the border areas of a touch sensor panel according to embodiments of the invention. 
         FIG. 2   b  illustrates an exemplary stackup of low resistivity material that can be used to form thinned traces in the border areas of a touch sensor panel according to embodiments of the invention. 
         FIG. 3  illustrates an exemplary double-sided ITO (DITO) touch sensor panel having wide conductive traces in the border areas of the touch sensor panel according to embodiments of the invention. 
         FIG. 4  illustrates an exemplary computing system including a touch sensor panel utilizing improved metal traces in the border areas according to embodiments of the invention. 
         FIG. 5   a  illustrates an exemplary mobile telephone having a touch sensor panel that includes improved metal traces in the border areas according to embodiments of the invention. 
         FIG. 5   b  illustrates an exemplary digital media player having a touch sensor panel that includes improved traces in the border areas according to embodiments of the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     In the following description of preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which it is shown by way of illustration specific embodiments in which the invention can be practiced. It is to be understood that other embodiments can be used and structural changes can be made without departing from the scope of the embodiments of this invention. 
     This relates to the formation of metal traces in the border areas of a touch sensor panel to provide improved reliability, better noise rejection, and lower manufacturing costs. The metal traces can be coupled to rows on the touch sensor panel in an interleaved manner, so that any two successive rows can be coupled to metal traces in border areas on opposite sides of the touch sensor panel. In addition, by utilizing the full width available in the border areas, the metal traces can be formed from higher resistivity metal, which can reduce manufacturing costs and improve trace reliability. The wider traces can also provide better noise immunity from noise sources such as an LCD by providing a larger fixed-potential surface area and by more effectively coupling the drive lines to the fixed potential. 
     Although embodiments of the invention may be described and illustrated herein in terms of mutual capacitance touch sensor panels, it should be understood that embodiments of this invention are not so limited, but are additionally applicable to self-capacitance sensor panels, and both single and multi-touch sensor panels in which the fabrication of metal traces in the border areas of a touch sensor panel is required. Furthermore, although embodiments of the invention may be described and illustrated herein in terms of double-sided ITO (DITO) touch sensor panels, it should be understood that embodiments of the invention are also applicable to other touch sensor panel configurations, such as configurations in which the drive and sense lines are formed on different substrates or on the back of a cover glass, configurations in which the drive and sense lines are formed on the same side of a single substrate, and configurations in which the drive and sense lines are formed in geometries other than rows and columns. 
       FIG. 1   a  illustrates a top view of row traces (R 0 -R 7 )  100  representing either drive or sense lines, and conductive traces  102  and  104  represented symbolically as thin lines in border areas  106  and  108  of touch sensor panel  110  according to embodiments of the invention. To make full use of the length of border areas  106  and  108 , in some embodiments row traces  100  can be coupled to metal traces  102  and  104  in an interleaved manner as shown in  FIG. 1   a , which results in some metal traces running the full length of touch sensor panel  110 . However, in alternative embodiments, interleaving need not be employed, and the metal traces can be routed in either or both of the border areas on either side of the touch sensor panel. In the example of  FIG. 1   a , rows R 0 , R 1 , R 2  and R 3  are coupled to metal traces  102  in left border area  106 , while interleaved rows R 4 , R 5 , R 6  and R 7  are coupled to metal traces  104  in right border area  108 . Note that the row designations R 0 -R 7  in  FIG. 1   a  are merely exemplary, and that other row designations (such as sequentially from R 0  to R 7  from bottom to top) are also possible. 
       FIG. 1   b  illustrates the exemplary touch sensor panel  110  of  FIG. 1   a , with conductive traces  102  and  104  drawn with representative widths (not to scale) according to embodiments of the invention. In the example of  FIG. 1   b , to make full use of the width of border areas  106  and  108 , conductive traces  102  and  104  can be made wider in accordance with the number of traces present at any location along the length of touch sensor panel  110 . For example, at location A (alongside row R 0  and R 4 ), only one metal trace is present, so trace portion  111 -A fills the entire available border area. At location B (alongside row R 1  and R 5 ), two metal traces are present, so the two trace portions  111 -B and  112 -B can be made the same width, wide enough to fill the entire available border area except for separation areas between traces. At location C (alongside row R 2  and R 6 ), three metal traces are present, so the three trace portions  111 -C,  112 -C and  114 -C can be made the same width, wide enough to fill the entire available border area except for separation areas between traces. At location D (alongside row R 3  and R 7 ), four metal traces are present, so the four trace portions  111 -D,  112 -D,  114 -D and  116 -D can be made the same width, wide enough to fill the entire available width of the available border area except for separation areas between traces. A similar trace construction can be utilized for metal traces  104  in border area  108 . Although the embodiment of  FIG. 1   b  shows metal traces being made the same width to fill up the available border area, in alternative embodiments the traces need not be of equal width. For example, the longer traces may be wider than the shorter traces. 
     By making metal traces  102  and  104  fill up the available width of border areas  106  and  108 , the traces can be wider and thus the overall line resistance of the trace can be lower, or the resistivity of the material can be increased for the same overall line resistance. For example, instead of using a Molybdenum/Aluminum/Molybdenum (Mo/Al/Mo) stackup at 0.4 ohms per square for the metal traces, a material having a resistivity of 1.0 ohms per square can be used. 
       FIG. 1   c  illustrates a close up view of an exemplary location of a border area portion  106  at which a transition from six to seven conductive traces  102  is occurring according to embodiments of the invention. As the example of  FIG. 1   c  illustrates, at each point where the traces need to be narrowed, an angled routing scheme can be used to avoid right-angled routing and to ensure that trace widths are maintained, although it should be understood that a right-angled routing scheme is not required. 
       FIG. 2   a  illustrates an exemplary stackup  200  of higher resistivity material that can be used to form wide traces in the border areas of a touch sensor panel according to embodiments of the invention. In the example of  FIG. 2   a , a single thicker and wider layer of Molybdenum/Niobium (Mo/Nb)  204  having a thickness of about 3000-5000 Å can be formed on substrate  206 . The higher resistivity of Mo/Nb is compensated for by the increased width and height of the Mo/Nb layer. After Mo/Nb layer  204  is deposited at the preferred thickness, it can be patterned (etched) to form traces. A layer of conductive material  224  such as ITO can then be formed over Mo/Nb layer  204 . Conductive material layer  224  can be patterned to form the drive or sense lines that couple to the metal traces, and can also be patterned over Mo/Nb traces  204  to form another protective layer for the Mo/Nb traces. Note that although  FIG. 2   a  shows conductive material  224  formed over Mo/Nb layer  204 , in alternative embodiments the reverse stackup can also be used. In other words, the Mo/Nb layer can be formed over the conductive material. A protective layer of material  210  such as silicon oxide (SiO 2 ) can then be formed over Mo/Nb layer  204  and conductive material layer  224 . Typical thicknesses for the materials of stackup  200  can be about 3000-5000 Å for Mo/Nb layer  204 , about 100-200 Å for conductive material layer  224 , and about 300-1000 Å for protective layer  210 . 
     In general, the ability to use higher resistivity material enables more flexibility in the material stack. For example, because the embodiment of  FIG. 2   a  utilizes only two conductive layers, manufacturing costs can be reduced as compared to three-layer stackups of thin, higher conductivity material. The fewer number of conductive layers also reduces the problem of side wall control present in when multi-layer stackups are patterned. In addition, the wider, thicker traces are generally of higher reliability, because etching defects, corrosion or other environmental effects may not create problems as easily as if the traces were thinner. 
     Although the embodiments described above utilize higher resistivity conductive material, such material need not be used. If low resistivity material is used to form the wide traces, the line resistance can be made even lower. This reduced line resistance can produce a better coupling to ground (or some fixed potential) for the wide row traces, improving the noise shielding effectiveness of the rows. Alternatively, a low resistance material can be used with the traces widths kept thin. The thin metal traces can enable a reduction in the width of the touch sensor panel. For example, a thinned three-sub-layer stackup including low resistance material can be used, and in some cases may be less expensive than to develop an alternate chemistry two-layer stackup. 
       FIG. 2   b  illustrates an exemplary stackup  212  of low resistivity material that can be used to form thinned traces in the border areas of a touch sensor panel according to embodiments of the invention. In the example of  FIG. 2   b , the primary conductive trace used for carrying the signal of interest can be a layer of Aluminum Neodymium (Al/Nd)  202 , although other materials with similar properties can also be used. (The signal of interest, as defined herein, includes but is not limited to alternating current (AC) signals, direct current (DC) signals at a substantially constant voltage, and pulse or other momentary perturbations in a DC signal.) Because Al/Nd does not adhere well to substrate  206 , a layer of Molybdenum Niobium (Mo/Nb)  204 , another metal, can be first formed on substrate  206  to enhance the adhesion of the Al/Nd to the substrate, although other materials with similar properties can also be used. Al/Nd layer  202  can then be formed over Mo/Nb layer  204 . A second layer of Mo/Nb  208  (or other similar material) can then be formed over Al/Nd layer  202  as an additional measure of protection from the atmosphere for the Al/Nd, which is highly corrosive. These three layers can be applied in essentially one step as an in-line process, with three chambers used to apply each layer in successive fashion. The three layers can then be etched together to form the traces, although in other embodiments, each of the three layers can be applied and patterned individually before the next layer is applied. A layer of conductive material  224  such as ITO can then be formed over the three-layer stackup. Conductive material layer  224  can be patterned to form the drive or sense lines that couple to the metal traces, and can also be patterned over the three-layer stackup to form another protective layer for the stackup. First passivation layer  210  of a material that can be sputtered (e.g. SiO 2 ) can then be applied over the traces to protect the formed traces, although other materials with similar properties can also be used. 
       FIG. 3  illustrates an exemplary DITO touch sensor panel  300  having widened conductive traces  316  (shown symbolically as dashed lines) in the border areas of the touch sensor panel according to embodiments of the invention. As shown in  FIG. 3  (with the z-direction greatly exaggerated for clarity of illustration), DITO multi-touch sensor panel  300  can have column traces  302  (e.g. sense lines) that can terminate at a short edge  304  of substrate  306 , requiring flex circuit  324  having wide flex circuit portion  308  extending the full width of the short edge that can bond to bond pads  310  on the top side of the substrate. 
     It can be undesirable to have column traces  302  (e.g. sense lines) and row traces  312  (e.g. drive lines) cross over each other at bonding area  314 , and it can also be undesirable to have bond pads  310  and  318  formed on directly opposing sides of substrate  306  because such areas can generate unwanted stray mutual capacitance and coupling of signals. Therefore, row traces  312  can be routed to the same short edge  304  of substrate  306  as column traces  302  using wide conductive traces  316  (represented symbolically as thin lines) running along the borders of the substrate. 
       FIG. 4  illustrates exemplary computing system  400  that can include one or more of the embodiments of the invention described above. Computing system  400  can include one or more panel processors  402  and peripherals  404 , and panel subsystem  406 . Peripherals  404  can include, but are not limited to, random access memory (RAM) or other types of memory or storage, watchdog timers and the like. Panel subsystem  406  can include, but is not limited to, one or more sense channels  408 , channel scan logic  410  and driver logic  414 . Channel scan logic  410  can access RAM  412 , autonomously read data from the sense channels and provide control for the sense channels. In addition, channel scan logic  410  can control driver logic  414  to generate stimulation signals  416  at various frequencies and phases that can be selectively applied to drive lines of touch sensor panel  424 . In some embodiments, panel subsystem  406 , panel processor  402  and peripherals  404  can be integrated into a single application specific integrated circuit (ASIC). 
     Touch sensor panel  424  can include a capacitive sensing medium having a plurality of drive lines and a plurality of sense lines, although other sensing media can also be used. Either or both of the drive and sense lines can be coupled to wide conductive traces according to embodiments of the invention. Each intersection of drive and sense lines can represent a capacitive sensing node and can be viewed as picture element (pixel)  426 , which can be particularly useful when touch sensor panel  424  is viewed as capturing an “image” of touch. (In other words, after panel subsystem  404  has determined whether a touch event has been detected at each touch sensor in the touch sensor panel, the pattern of touch sensors in the multi-touch panel at which a touch event occurred can be viewed as an “image” of touch (e.g. a pattern of fingers touching the panel).) Each sense line of touch sensor panel  424  can drive sense channel  408  (also referred to herein as an event detection and demodulation circuit) in panel subsystem  406 . 
     Computing system  400  can also include host processor  428  for receiving outputs from panel processor  402  and performing actions based on the outputs that can include, but are not limited to, moving an object such as a cursor or pointer, scrolling or panning, adjusting control settings, opening a file or document, viewing a menu, making a selection, executing instructions, operating a peripheral device coupled to the host device, answering a telephone call, placing a telephone call, terminating a telephone call, changing the volume or audio settings, storing information related to telephone communications such as addresses, frequently dialed numbers, received calls, missed calls, logging onto a computer or a computer network, permitting authorized individuals access to restricted areas of the computer or computer network, loading a user profile associated with a user&#39;s preferred arrangement of the computer desktop, permitting access to web content, launching a particular program, encrypting or decoding a message, and/or the like. Host processor  428  can also perform additional functions that may not be related to panel processing, and can be coupled to program storage  432  and display device  430  such as an LCD display for providing a UI to a user of the device. Display device  430  together with touch sensor panel  424 , when located partially or entirely under the touch sensor panel, can form touch screen  418 . 
     Note that one or more of the functions described above can be performed by firmware stored in memory (e.g. one of the peripherals  404  in  FIG. 4 ) and executed by panel processor  402 , or stored in program storage  432  and executed by host processor  428 . The firmware can also be stored and/or transported within any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. In the context of this document, a “computer-readable medium” can be any medium that can contain or store the program for use by or in connection with the instruction execution system, apparatus, or device. The computer readable medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, a portable computer diskette (magnetic), a random access memory (RAM) (magnetic), a read-only memory (ROM) (magnetic), an erasable programmable read-only memory (EPROM) (magnetic), a portable optical disc such a CD, CD-R, CD-RW, DVD, DVD-R, or DVD-RW, or flash memory such as compact flash cards, secured digital cards, USB memory devices, memory sticks, and the like. 
     The firmware can also be propagated within any transport medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. In the context of this document, a “transport medium” can be any medium that can communicate, propagate or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The transport readable medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic or infrared wired or wireless propagation medium. 
       FIG. 5   a  illustrates exemplary mobile telephone  536  that can include touch sensor panel  524  and display device  530 , the touch sensor panel including the conductive traces formed in the border areas of the touch sensor panel according to embodiments of the invention. 
       FIG. 5   b  illustrates exemplary digital media player  540  that can include touch sensor panel  524  and display device  530 , the touch sensor panel including improved reliability conductive traces according to embodiments of the invention. 
     Although embodiments of this invention have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of embodiments of this invention as defined by the appended claims.

Metadata:
Filing Date: 20080606
Publication Date: 20150630
Grant Date: 20150630
Priority Date: 20080606
Inventors: GRUNTHANER MARTIN PAUL
HUANG LILI
Assignee: APPLE INC
CPC Classifications: [{"code": "G06F3/044", "inventive": true, "first": true, "tree": "[]"}, {"code": "H05K3/24", "inventive": true, "first": false, "tree": "[]"}, {"code": "H05K2201/0108", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/0289", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F3/04164", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F2203/04107", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F3/0448", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/0446", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/0445", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0445", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F2203/04103", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F3/0412", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F2203/04103", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F2203/04107", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F2203/04113", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F2203/04102", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F3/0446", "inventive": true, "first": true, "tree": "[]"}]
Family ID: 40834273