# US 2013/0155021 A1 · Capacitive touch sensor and fabrication method thereof and capacitive touch panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155021 A1 - Document ID: US20130155021A1 - Status: Published application - Kind: A1 - Application number: 13/767,343 - Filed: 2013-02-14 - Published: 2013-06-20 - Earliest claimed: 2010-02-03 - Assignees: Wintek Corporation; Wintek (China) Technology Ltd. - Inventors: Hsiang-Wei YIN; Ming-Kung WU; Kuo-Chang SU; Ping-Wen HUANG - Web page: https://patentgrep.com/patent/US20130155021A1 ## CPC - G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer} - G01D 5/24: by varying capacitance - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - H05K 3/10: in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern - G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate - Y10T 29/49155: Manufacturing circuit on or in base - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A capacitive touch sensor includes multiple first-axis traces, multiple second-axis traces, an insulation layer and multiple metal traces. Each first-axis trace includes multiple first touch-sensing pads and first connecting lines connected therebetween. Each second-axis trace includes multiple second touch-sensing pads and second connecting lines connected therebetween. At least one of the first connecting line and the second connecting line is a metal printing line. ## Claims ### Claim 1 A capacitive touch sensor, comprising: a plurality of first-axis traces, wherein each of the first-axis traces comprises a plurality of first touch-sensing pads and first connecting lines, the first touch-sensing pads are arranged along a first direction, each of the first connecting lines connects two adjacent first touch-sensing pads, and each of the first connecting lines has an enlarged portion at each of the opposed end portions; a plurality of second-axis traces intersected with the first-axis traces, wherein each of the second-axis traces comprises a plurality of second touch-sensing pads and second connecting lines, the second touch-sensing pads are arranged along a second direction different to the first direction, each of the second connecting lines connects two adjacent second touch-sensing pads, and each of the second connecting lines has an enlarged portion at each of the opposed end portions; an insulation layer at least formed between the first connecting lines and the second connecting lines; and a plurality of metal traces disposed on the periphery of the capacitive touch sensor, electrically connected to the first-axis traces and the second-axis traces, and connected to at least one signal output terminal for transmitting a sensing signal of the capacitive touch sensor to a back-end signal processing unit through the signal output terminal. ### Claim 2 (depends on 1) The capacitive touch sensor as claimed in claim 1, wherein each one of two adjacent first touch-sensing pads has a first extrusion extending towards the other, and each one of two adjacent second touch-sensing pads has a second extrusion extending towards the other. ### Claim 3 (depends on 1) The capacitive touch sensor as claimed in claim 1, wherein the material of at least one of the first connecting lines and the second lines is metal. ### Claim 4 (depends on 1) The capacitive touch sensor as claimed in claim 1, wherein at least one of the first connecting lines and the second lines is a multi-layer stack structure and the area of each layer in the multi-layer stack structure is decreased from the bottom to the top of the multi-layer stack structure. ### Claim 5 (depends on 1) The capacitive touch sensor as claimed in claim 1, wherein each of the metal traces is a multi-layer stack structure and an area of each layer in the multi-layer stack structure is decreased from the bottom to the top of the multi-layer stack structure. ### Claim 6 A capacitive touch sensor, comprising: a plurality of first-axis traces arranged at regular intervals and parallel to each other, wherein each of the first-axis traces comprises a plurality of first touch-sensing pads and first connecting lines, the first touch-sensing pads are arranged along a first direction, and each of the first connecting lines connects two adjacent first touch-sensing pads, and each of the first connecting lines has an enlarged portion at each of the opposed end portions; a plurality of second-axis traces arranged at regular intervals, parallel to each other and intersected with the first-axis traces, wherein each of the second-axis traces comprises a plurality of second touch-sensing pads and second connecting lines, and the second touch-sensing pads are arranged along a second direction different to the first direction; and an insulation layer at least formed between the first connecting lines and the second connecting lines. ### Claim 7 (depends on 6) The capacitive touch sensor as claimed in claim 6, further comprising a plurality of metal traces disposed on the periphery of the capacitive touch sensor, electrically connected to the first-axis traces and the second-axis traces, and connected to at least one signal output terminal for transmitting a sensing signal of the capacitive touch sensor to a back-end signal processing unit through the signal output terminal. ### Claim 8 (depends on 7) The capacitive touch sensor as claimed in claim 7, wherein each of the metal traces is a multi-layer stack structure and an area of each layer in the multi-layer stack structure is decreased from the bottom to the top of the multi-layer stack structure. ### Claim 9 (depends on 6) The capacitive touch sensor as claimed in claim 6, wherein each one of two adjacent first touch-sensing pads has a first extrusion extending towards the other, and each one of two adjacent second touch-sensing pads has a second extrusion extending towards the other. ### Claim 10 (depends on 6) The capacitive touch sensor as claimed in claim 6, wherein the material of at least one of the first connecting lines and the second lines is metal. ### Claim 11 (depends on 6) The capacitive touch sensor as claimed in claim 6, wherein at least one of the first connecting lines and the second lines is a multi-layer stack structure and the area of each layer in the multi-layer stack structure is decreased from the bottom to the top of the multi-layer stack structure. ### Claim 12 A capacitive touch panel, comprising: a cover lens; and a touch sensor formed on the cover lens and comprising: a plurality of first-axis traces, wherein each of the first-axis traces comprises a plurality of first touch-sensing pads and first connecting lines, the first touch-sensing pads are arranged along a first direction, each of the first connecting lines connects two adjacent first touch-sensing pads, and each of the first connecting lines has an enlarged portion at each of the opposed end portions; a plurality of second-axis traces intersected with the first-axis traces, wherein each of the second-axis traces comprises a plurality of second touch-sensing pads and second connecting lines, the second touch-sensing pads are arranged along a second direction different to the first direction, and each of the second connecting lines connects two adjacent second touch-sensing pads; an insulation layer at least formed between the first connecting lines and the second connecting lines; and a plurality of metal traces disposed on the periphery of the capacitive touch sensor, electrically connected to the first-axis traces and the second-axis traces, and connected to at least one signal output terminal for transmitting a sensing signal of the capacitive touch sensor to a back-end signal processing unit through the signal output terminal. ### Claim 13 (depends on 12) The capacitive touch panel as claimed in claim 12, wherein the cover lens comprises a substrate and a decorative layer formed on the substrate. ### Claim 14 (depends on 13) The capacitive touch panel as claimed in claim 13, wherein the substrate is a glass substrate or a plastic substrate. ### Claim 15 (depends on 12) The capacitive touch panel as claimed in claim 12, wherein the decorative layer is formed at a position overlapping the metal traces. ### Claim 16 (depends on 12) The capacitive touch panel as claimed in claim 12, wherein the material of the decorative layer comprises at least one of diamond-like carbon, ceramic, ink, and photo resist. ### Claim 17 (depends on 12) The capacitive touch panel as claimed in claim 12, wherein each one of two adjacent first touch-sensing pads has a first extrusion extending towards the other, and each one of two adjacent second touch-sensing pads has a second extrusion extending towards the other. ### Claim 18 (depends on 12) The capacitive touch panel as claimed in claim 12, wherein the material of at least one of the first connecting lines and the second lines is metal. ### Claim 19 (depends on 12) The capacitive touch panel as claimed in claim 12, wherein at least one of the first connecting lines and the second lines is a multi-layer stack structure and the area of each layer in the multi-layer stack structure is decreased from the bottom to the top of the multi-layer stack structure. ### Claim 20 (depends on 12) The capacitive touch panel as claimed in claim 12, wherein each of the metal traces is a multi-layer stack structure and an area of each layer in the multi-layer stack structure is decreased from the bottom to the top of the multi-layer stack structure.