TWI286329B - Recoverable over-current protection device and its manufacturing method - Google Patents

Abstract

A kind of recoverable over-current protection device and its manufacturing method are disclosed in the present invention. The invention is composed of the followings: providing a lamination layer body that includes at least two conductive polymer layers, in which at least one inner electrode layer is disposed and spaced at intervals inside the conductive polymer layer, and the upper and the lower electrode layers are disposed outside two outmost conductive polymer layers; alternately disposing the isolation grooves formed between two adjacent electrode layers so as to divide and define plural particle-shaped devices; coating the insulation layer on both the upper and the lower electrodes to cover the isolation groove; performing the dicing step to form plural particle-shaped devices such that each particle-shaped device is provided with two curve-shaped end faces symmetrical to each other; and electroplating both left and right electrodes to cover two curve-shaped end faces of the particle-shaped device and have an electrical connection with the upper and the lower electrode layers, respectively, so as to form the reversible over-current protection device.

Description

1286329 IX. Description of the Invention: [Technical Field] The present invention relates to a multiplexable overcurrent protection device and a method for fabricating the same, and more particularly to a polymer positive temperature coefficient (Polymer Positive Temperature Coefficient) PPTC) A method for fabricating a positive temperature coefficient thermistor element made of a material and a device thereof [Prior Art] A polymer-based positive temperature coefficient thermistor element (particles, etc.), a polymer substrate, and a fresh-made composition, The increase of temperature or current will increase the resistance value of the component at the same time, and after the temperature or current condition is removed, the component impedance value will be restored to the low impedance state of the county. Therefore, the polymer ί positive temperature coefficient thermistor component is also It can be called “replicable piece”, that is, polymer polymer city switch 4, the main secret small power electronic equipment short circuit and over current. The PPTG thermistor industry applications include computer peripherals (such as USB port), Circuit protection for telecommunications equipment, secondary rechargeable battery packs, power supplies, automotive electronics (such as automotive starters) and transformers For reference, please refer to the figure--, at normal temperature, the S molecular substrate is bound to the conductive structure (4) in its crystalline structure to form a low impedance (100 ohm-cm or less ohms or less). , or 丨 ohm _ cm or less) chain key, the current maintains the circuit path by the particles closely connected by the conductive filler, and does not change the crystal structure of the polymer substrate; however: when the current sharply increases, Excessive heat will extinguish the PPTG. The temperature rises rapidly in 1286329. When the temperature is higher than a predetermined value, the polymer substrate changes from crystalline to amorphous, and is bound to the polymer substrate. The conductive filler particles are separated, and the impedance of the PPTC thermistor is rapidly increased, so that the passing current becomes smaller in a very short time, and the circuit is disconnected, thereby achieving the protection purpose; After that, the polymer substrate is again transformed into an amorphous shape by an amorphous shape. At this time, the chain between the conductive filler particles and the domain is established, so that the PPTG thermistor _ impedance has a low impedance, and the shape L The action principle is based on energy conservation. When the current passes through the P^rc thermistor, the heat generated by the PTG thermistor will be emitted to the environment or increase the temperature of the thermistor itself; as shown in the first figure. The temperature indicated by the second point is the balance that can be achieved when the ppTC thermistor is not significantly increased in current or ambient temperature. When the current or ambient temperature is increased: the PPTC heat is increased. The varistor will reach the critical temperature as point 3 of the first figure. A small temperature change in this phase will cause a significant increase in impedance. Once the temperature exceeds the third point, the PPTC thermistor will jump = (Trip). State, the impedance is rapidly increased to the 4th point of the first figure of the actuation / dish to limit the passage of current, thereby protecting the relevant equipment from damage. The general clothing, PPTC thermistor steps, including the individual manufacturers _ = square (including 3 molecular polymer, conductive fillers and additives, etc.), at the temperature of the formula is mixed into a board Shape, use the upper and lower metal = reverse (usually nickel plate, nickel-plated copper plate or nickel-copper alloy) to clamp the plate. Use various techniques to form the above-mentioned metal plate to form two upper and lower electrodes to complete a positive temperature coefficient thermistor. element. Among them, the formula palm control material ΐ 'the other about the PPTC thermistor impedance, tripping ability and back =: characteristics, is based on the formula for the research and development of confidentiality; Crystallization characteristics, conductive filler 1286329 J degree and the thickness of the board and the overlap area of the two upper and lower electrodes. There is still a combination of polymer and metal plate in the hawthorn. The internal stress after the process, the security of the client application, and other issues need to be considered. / In addition, in response to the light and short appeal of electronic equipment, the size of the surface-adhesive electronic components is gradually improved by 12〇6. For 〇6〇3, 0402, or even 02 (^ and other specifications, the higher impedance PPTC thermistor can not be developed in the size of the plane ruler = (such as · long, I)' must be stacked Changing the south degree of 7G parts, the double-layer or multi-layer parallel packaging method is used to achieve the requirement of multi-layer ρρ=thermistor; compared with the single-layer ppTC thermistor, it has the ability to work more smoothly (higher jump) De-current margin) and multi-layer PPTC The varistor occupies the required surface area for the board (red such as surface yea) is smaller than the single layer or tens of thermistor; however, when the number of stacked layers is higher and higher, the electrodes at both ends of the multilayer PPTC thermistor The thermal effect will become more and more obvious. Excessive heat accumulation effect not only has the risk of triggering the multi-layer ppTC thermistor tripping, but the excess thermal stress can affect the component itself. In part, it is applied to the fabrication technology of the conventional single-layer structure, and it is impossible to cope with the heat polymerization effect brought by the stack. Please refer to US Patent No. 6, 348, 852 disclosed in Figures 2A to 2F. Firstly, it is disclosed that at least three nickel-plated electroplated copper foil sheets 1 a are pre-formed with a plurality of toothed comb-shaped grooves ,a, and the three nickel-plated electro-ceramic copper foil sheets 1 a are interlaced at least two layers. Positive temperature coefficient conductive polymer material 2 a (hereinafter referred to as PPTC material), and the teeth of the three nickel-plated copper plating tanks 1 a are staggered and overlapped (as shown in Figure A); cutting on the plated substrate Dice) has a plurality of channels (openings) 1 1 a, the basin runs through the 1286329 two nickel plates 1 a, and the channel 1 1 a and the tooth comb groove 1 〇 a two or two miscellaneous settings (such as the second B Then, a layer of epoxy-modified acrylic resin protective adhesive 4a is coated with a screen printing to cover the toothed comb-shaped groove 1 〇a but exposes a portion of the tooth portion of the tooth-shaped groove 1 〇a (eg, 2 c)); coating the epoxy-modified acrylic resin protective adhesive 4 a after the nickel electro- ore, the outer surface of the channel 1 1 a and the upper and lower nickel plate ia are covered with a nickel layer (such as the second map) After completing the nickel plating, the plate-shaped substrate is cut into a granular substrate, and a single double-layer PPTC thermistor (such as the second E diagram) is completed. As shown in the second E diagram, the channel 1 1 a is processed by a dicing blade and is linear; as described above, the impedance of the ppTC thermistor and the overlapping area of the upper and lower electrodes Relatedly, the larger the overlap area is, the smaller the impedance is. However, the first upper electrode overlap area is determined by the channel 1 a and the tooth comb groove 1 〇 a, and the channel 1 1 a A flat line with the comb-like groove 1 〇a indicates that a small overlap area is determined in this structure (by wasting the PPTC material at the proximal electrode), which is determined by the above-mentioned small overlap area. The larger component resistance value reduces the margin of the tripcurrent determined by the pptc material formulation, which in turn limits the application range of the PPTC thermistor. Referring to the second prior art of U.S. Patent No. 6,242,997, the disclosure of which is incorporated herein by reference to the entire disclosure of the entire disclosures of , at least two tissue plate-shaped substrates are prepared, and each of the plate-shaped base materials has a groove 1 〇b for the nickel plate 1 b, and the channels 10 b of the two plate-shaped base materials are staggered and outermost The plate-shaped substrate outer layer nickel plate 1 b is kept flat, that is, it is not etched (please refer to both the second and the second and B) (wherein the etching of the channel of the nickel plate 1 b) For a schematic view, please refer to the third B / diagram; press the plate-shaped substrate into 1286329 a laminate (such as the third c: figure); the plate-shaped substrate is penetrated by a plurality of grooves = (slots) (such as 3d)); performing copper electroplating, the copper layer 3b is plated on the outermost two nickel plates 1b, and is still plated in the groove 1 1 b, so that the three nickel plates 1 b are borrowed from the copper layer 3 b is connected in a staggered manner (such as the third ^: figure); etching is further etched the outermost two nickel plates ib respectively to a separation groove 1 2 b, forming the upper and lower electrodes separated by the separation groove 丄 2 b ( As the second = Applying a protective layer 4 b to the outermost layer of the nickel plate ib to cover the separation groove 1 2 b (as shown in the third G diagram); and finally plating the tin layer 5 b outside the copper layer 3b (as in the first Three η map); and the plate-shaped substrate is cut into a granular shape to complete a single multi-layer PPTC thermistor (as shown in Figure 3). As in the first conventional PPTC thermistor structure, the overlapping areas of the upper and lower electrodes are determined by the upper and lower partitioning grooves 1 2 b, and the two dividing grooves 2b are flat and straight, which means waste of the proximal electrode. At the ppTC material, it is known that the smaller overlap area determines the larger component resistance value, and the trip current determined by the PPTC material formulation is reduced (the remaining t of the 廿 is reduced, thereby limiting the PPTC thermistor) In addition, the terminal electrode portion of the first-known PPTC varistor is formed by the electric bond to the groove, and the copper layer 3 b in the 1 1 b is formed with the tin layer 5 b to achieve two-phase f upper and lower nickel The electrical connection of the board 1 b, but the ppTC thermistor of the structure is too small and has poor holding power (poor so 1 derab i 1 i ty) or Fu ^ is also subjected to the reflow process If it is not tin (de-wetting). Resistance iG = p = nllifting), etc. 'Re-influence (four) hot bite ▲, customer application and reliability.

UiToL reads the US patent us, 5 c ^ ^ two PPTC materials 2 c disclosed in Figure 4A to Figure 2 after forming a plate-like substrate (please refer to 1286329, fourth A and fourth B, respectively); The substrate penetrates through the arrayed hole axis 1 1 c (as shown in FIG. 4C); the nickel layer is plated to a thickness of about 1 〇 2 〇 2 μm, and then a copper layer of about 10 to 20 μm thick is plated, and the channel hole axis 1 lc The inner and outermost two copper foil plates 1 c are covered with a nickel-copper layer 4 c (as shown in the fourth d-figure), so that the outermost two copper foil plates 1 c are electrically charged by the nickel-copper layer 4 c Sexually connected, the last two layers of the two copper foil sheets 1 C (along with the recorded copper layer 4 c ) are respectively named with a dividing groove 1 2 c (as shown in the fourth E diagram); The two copper plate 1 b is coated with a protective layer 5 c covering the separation groove 12c (as shown in the fourth F diagram); nickel plating is performed to make the copper layer 4 c beside the area covered by the protective layer 5 c Each layer is covered with a recording layer 6 c (such as the fourth G picture); finally, the plate-shaped substrate is cut into a granular shape, and a single multi-layer PPTC thermistor (such as the fourth drawing) is completed. The separation groove 1 2 c is etched in a curved manner, and the ppTC material at the proximal electrode can be fully utilized to solve the problems encountered in the conventional and second conventional methods. However, the third conventional PPTC thermal The end electrode portion of the resistor is formed by the nickel-copper layer 4c plated in the hole shaft 1c and the nickel layer 6c to achieve electrical connection between the two upper and lower metal foil electrode plates 1c. However, the pptc thermistor of this structure is prone to the problem of poor solderability due to the excessively small electrodes at both ends, and is also de-wetting or de-wetting during the reflow process. Tombstone effect (c〇mp〇nent lifting), etc., because of the difficulty in plating the hole axis, the plating effect of the nickel-copper layer 4c or the nickel layer 6c cannot achieve the required fineness, and may even The nickel-copper layer 4c or the cracked jointing of the nickel layer 6c is caused to be more serious, the internal stress unevenness of the client after reflow is caused by component cracking, and the like; in addition, the hole axis iic The surface area is not so large that the PPTC thermistor of this structure is applied to the general circuit 1286329 board. When the current is easily generated by the hole axis with a small surface area, the PPTC thermistor is crossed and the +2 limit is over, and the e e is easy to occur, and the 〇ver-current load is not yet generated. Break through the current ·, and then influence the curse thermistor to follow 々丨L (^ιρ usability and reliability. 实 舄 舄 舄 Γ Γ amp amp amp amp 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述 上述The invention is reasonable and widely designed to effectively improve the above-mentioned defects. [Inventive content] The main purpose of the _ piece and == is to provide a multiplexable overcurrent protection component and a manufacturing method thereof, which can improve the heat conduction effect and improve the heat dissipation effect. External temperature or poorly designed heat accumulation affects product characteristics and the second object of the present invention is to provide a reversible overcurrent protection element and a method of fabricating the same, which is to maintain the maximum effective (overlap) area of the upper and lower electrodes, when the effective area The larger the impedance of the component, the greater the margin from the tripping current determined by the PPTC material formulation (trip(3) plant (9)7), and the reckless PPTC thermal The application of the resistor is broader. A further object of the present invention is to provide a multiplexable overcurrent protection component and a method of fabricating the same, which can prevent internal stress from remaining inside the component after splicing, thereby avoiding body rupture. Another object is to provide a multiplexable overcurrent protection component and a method of fabricating the same, which can increase the surface area of plating and soldering, improve the good solderability, and avoid de-wetting or toe 1286329 component lifting. And so on. In order to achieve the above object, the present invention provides a multiplexable overcurrent protection member comprising a laminated body, left and right end electrodes, and upper and lower insulating layers. The lamination system includes at least one conductive polymer layer, a lower electrode layer disposed on the lower side of the conductive polymer layer, and at least one internal electrode disposed adjacent to the conductive polymer layer; Wherein the laminate system has two curved end faces which are symmetrical to each other; the conductive polymer layer has a positive temperature coefficient. The left and right end electrodes respectively cover the two curved end faces of the laminate, and are electrically connected to the upper and lower electrode layers and the inner electrode layer, respectively, and the upper and lower electrode layers and the inner electrode layer are electrically interlayer connection. The upper and lower insulating layers are respectively covered on the upper surface of the upper surface of the laminate and filled between the left and right end electrodes; wherein the left and right end faces of the upper and lower electrode layers correspond to the left and right curved end faces of the laminate Symmetrical curves. In order to achieve the above object, the laminated body provided by the present invention comprises a plurality of conductive polymer layers, at least an inner electrode layer spaced apart from each other in the two conductive south molecular layers, and Two upper and lower electrode layers on the outer side of the outermost conductive polymer layer. In order to achieve the above object, the present invention provides a method for fabricating a replicable overcurrent protection device, the steps of which are: κ a) provisioning a two-electrode layer de-extrusion-conductivity south molecular layer formation-monomer; (b) fine and complex isolation trenches respectively The two electrode layers of the monomer; (e) preparing at least two of the monomers and at least one of the conductive polymer layers are mutually inspected and disposed (four) into a laminated sheet; wherein the electrodes Each of the layers is etched with a plurality of insulating grooves, and the insulating grooves formed by the two adjacent electrodes are alternately arranged 12 1286329, thereby defining a plurality of granular elements, and the insulating grooves are curved; a cutting grid line is disposed on the upper and lower electrode layers according to a predetermined pattern, the cutting grid line includes a plurality of continuous longitudinal curves and a plurality of discontinuous transverse straight lines, and the longitudinal curves adjacent to each other are symmetrical to each other; (e) Applying an insulating layer to the upper and lower electrodes and covering the upper and lower isolation grooves; (f) fabricating the laminate body into a plurality of granular elements, each of the granular elements having mutually symmetrical left and right curved end faces (curved sidewal 1 ); And (g) the left and right end electrodes of the electric ore to cover the two curved end faces of each of the granular elements, and are electrically connected to the electrode layers by a fault, respectively; wherein the electrode layers are electrically conductive connection. In order to achieve the above object, the present invention provides a method for fabricating a replicable overcurrent protection device, the method comprising the steps of: a) providing a single electrode layer to pinch a single two-conductive polymer layer to form a monomer; and (b) etching a plurality of isolation trenches; The electrode layer of the monomer; (c) sequentially stacking at least two of the monomers and another electrode layer to form a laminated sheet; (d) etching the plurality of insulating grooves to the electrodes of the laminate body a layer, the two adjacent insulating grooves are arranged alternately with each other, whereby a plurality of granular elements are defined by the partition, and the insulating groove is curved; (e) the cutting grid is set to the upper and lower electrodes according to the pre (four) sample a layer, the cutting grid line comprises a plurality of continuous longitudinal curves and a plurality of strips of continuous transverse trajectory, wherein the longitudinal curves of adjacent lines are symmetrical to each other; (f) coating an insulating layer on the upper and lower electrodes and covering The upper and lower insulation grooves; (g) the laminate body is formed into a plurality of granular elements, each of the granular elements having mutually symmetrical left and right curved end faces (coffee); and (h) electroplating left and right end electrodes for wrapping Cover each - granular Both end surfaces of the member, and are alternately electrically connected to these electrode layers. In order to achieve the above object, the present invention provides a fabrication method for a multiplexable overcurrent protection element 13 1286329, the steps of which include: (a) arranging a two-electrode layer to pinch a lead, and forming a south molecular layer-monomer; Separating (four) a plurality of isolation holes in the two electrode layers of the monomer; (C) preparing at least two of the monomers and at least the conductive germanium molecular layer are spaced apart from each other and pinched to form a laminated sheet; Each of the equal electrode layers is etched with a plurality of insulating grooves, and the two insulating grooves formed by the adjacent electrode layers are alternately arranged with each other, thereby defining a plurality of granular elements, and the partition is curved; (d) Array holes are arranged through the layer of the plurality of layers, wherein the upper and lower electrode layers of the laminate body are pre-cut with a ruled line, the holes are at the intersection of the grid lines; (e) the insulating layer is coated on the upper and lower sides The electrode is covered with ray f) The body of the money plate is made into a plurality of 7G pieces, each of which has a mutually symmetrical through-hole soil at both ends of the flank, and (g) a plated left and right end electrodes to coat each particle. Both ends of the element are interleaved Such electrically connected to the electrode layer. In order to achieve the above objective, the present invention provides a method for fabricating a reflowable protective element, the steps of which include: (a) a charge-electrode layer pinching a single conductive polymer layer to form a monomer; a plurality of isolation holes in the electrode layer of the precursor; (e) sequentially stacking at least two of the monomers and another electrode layer to form a laminate body; (d) _ a plurality of spacers The electrode layers; the insulating grooves of the electrode layer adjacent to the towel (4) are alternately arranged with each other, thereby defining a plurality of granular elements, and the partitions are curved; (e) arranging the array holes (drilHng h〇les) penetrating the laminate body, wherein the upper and lower electrode layers of the laminate body are pre-cut with a ruled line, the hole is at the intersection of the ruled line; (f) an insulating layer is applied to the layer The upper and lower electrodes are covered and covered by the insulating groove; (g) the laminated body is made into a plurality of granular elements, each of the granular elements is symmetrical to each other on both end faces, and (h) the left and right ends of the plating Electrodes are coated on both end faces of each granular element, and are electrically connected to the same electric power in a staggered manner The protective layer of the laminate body is formed on the upper and lower electrode layers, and the layer is formed by separating the plurality of granular elements, wherein the plurality of granular elements are defined by the partition, wherein Curved shape; set the cutting grid line in the upper pattern, the longitudinal curve and the plurality of discontinuities in the predetermined pattern. The longitudinal curve is symmetrical with each other, and the insulating layer iri is applied to the groove; The composite ink plate body is formed into a complex element having two symmetrical left and right curved shapes: 』: 1); and the left and right end electrodes are plated to cover the two curved end faces of each piece, and are respectively electrically connected to The upper and lower protective elements ί 'the present invention provides a double overcurrent protection conductivity t eight early island, the steps include: preparing - a laminate body (1_ed sheet) formed by the upper and lower electrode layer sandwich t = layer; ^The upper and lower electrode layers are arranged with array holes (two holes), the teeth of the laminate body, the intersection of the purely miscellaneous wires, and the upper and lower electrode layers of the body. Curved shape, two two; the upper and lower electrodes are overlapped = 'r granular element system The two ends, the dentate soil, and the left and right end electrodes of the electric ore are coated with two layers of each of the granular elements of each of the 15 elements. @ , and are electrically connected to the upper and lower electrodes respectively for the purpose of reviewing the ruling. & technical content, please The features and contents of the present invention are only provided to provide a detailed description of the present invention. However, the invention is limited and the invention is limited. As shown in the figure, when the pp flow or overheating occurs, the brittle resistance of the polymer can be supplied to the power supply A曰丄7, and the substrate structure is converted from the crystalline phase to the non-daili phase, making the PPTC thermistor Impedance 佶曰, /P1 ΓΤ · /η, 夕 疋歼 疋歼 呈 呈 呈 呈 呈 呈 Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr Tr After that, the impedance value is deliciously restored to the low impedance state. This characteristic is called "recoverability". When the suction meter is not ^ (especially when the multi-layer thermistor fabricated in a stack is easy to emit ^ ^ two external 'the temperature is too high, the PPTC thermistor easily accumulates heat to generate an action (tripping state), resulting in the original operation The pendulum creates unnecessary troubles. Therefore, the present invention provides a reconfigurable overcurrent protection component and a manufacturing method thereof, which can improve the heat conduction effect, improve the heat dissipation effect, and avoid the external rated temperature or the poorly designed heat accumulation affecting the product characteristics and Referring to FIGS. 5A and 5B, it is a reconfigurable overcurrent protection element comprising a laminate having mutually symmetrical left and right curved sidewalls 1 〇 and 1 1 . Laminated body 1. respectively coating the two curved end faces of the laminate 1 with the left and right end electrodes 2 and 3 of the work 1, and covering the lower insulating layer 4 above the lower surface of the laminate 1, respectively. And 5 °, wherein the laminate 1 can comprise at least one conductive polymer layer 1 16

κ更) is replacing page 2, " ϋ 电 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上 上The inner turtle pole 2 〇; in a preferred embodiment, the laminate 1 does not contain a plurality of conductive molecular layers 丄 2, at least the inner electrode layer 2 disposed in the two conductive polymer layers 1f Q, and set at the outermost = conductive boring tool: two upper and lower electrode layers 13 and 1 on the outer side of layer 12: π layer 12 determines impedance, tripping ability and recovery layer: 0, high conductivity In the molecular layer 12, the internal electrode 'i 4> is inferior to the upper surface of the lower electrode surface except the conductive polymer layer 1 2, and the lower surface of the conductive polymer layer 12 is disposed on the upper surface of the conductive layer 12 and the upper iiff16 . The upper electrode layer 13 is insulated from each other by the isolation trenches 18 and =5, and the lower electrode layer 14 is connected to the middle, and the left end electrode is electrically insulated from each other. In this embodiment, the right end is electrically connected to the upper conductive layer 15 and the lower electrode layer 2 0 盥嗲 = 亟 3 is inductively connected to the lower conductive layer 16 , the inner electrode 2 = layer i3 Thus, the drain is formed on the right curved end of the conductive polymer layer 12 1 . The upper electrode layer 13 extends inwardly from the lower electrode layer 4 且 and approaches the upper conductive layer 15 and the lower conductive layer 16 and extends inwardly from the left curved end face 1 1 and approaches to The system corresponds to a curved shape in which the left and right end faces of the upper and lower electrode layers 13 and 14 of the layer are symmetric, and the left and right curved end faces 1〇 and 11 are formed as mutually polar layers 20 in the upper and lower electrode layers 13 and 14 and The internal power (overlap) is the most suitable size (such as (10) 〇 3, 0201, etc.), the smaller the overlap impedance, the effective area is unloaded, and the larger the effective area, the more the conductive polymer layer 12 Decided jump

The margin of the top current is large, which makes the application of the component wider. The upper and lower insulating layers 4, 5 cover the upper and lower isolation grooves 17 and 18, respectively, and are filled between the left and right end electrodes 2, 3. The upper and lower 'pole layers 1 3, 14 , the inner electrode layer 2 ◦ and the conductive layer 丄 5, 丄 6 2: made of: steel, nickel-plated copper foil or nickel-copper alloy, the left and right end electrodes 2 The 3 series includes at least two electric ore layers, and the second outermost layer of the second electric ore layer 2, 3 2 is for the purpose of continuous board or welding, and the most (10)^ ore layer 21, 31 can be regarded as the upper and lower electrode layers 13 , and the conductive layer ^ 5 1 6 material is a nickel layer or a copper layer; the left and right of the implementation of the touch: the pole 2, 3 series includes three layers of plating layer 'When the first plating layer 2 丄, 3 丄 更Further included is a nickel layer 23, 3 3 between the copper layer 2 1 , 3 1 and the tin layer 2 2, 3 2 . In other embodiments, the left and right curved ends 1 have at least a concave surface 1 〇 2, 1 丄 2; the right two curved end faces 10, 11 are respectively as shown in the fifth A diagram. The performance shown in the figure shows that there is no 11 total production 丄丄 'left and right curved end face 10, the force of the parts to increase the contact surface area under the same size requirements (such as _3, surface, etc.); The (four) New surface area of the left and right end electrodes 2, 3 helps to improve the H-rate and compactness of the welding; in the welding process, :1 γ1γΛΦ 1 5 ^ ^ ^ (good ;T (de-ett-^^ΤΓΤΓ/ In addition, the left and right curved surfaces 10, 1]_ must be symmetrical because the end electrodes 2, 3 are equal to the holding force of the ', * left and right residual internal stress, from (four) free of the station After the connection, the upper and lower electrode layers 1 1 , 1 曰丄 1 d 1 4 , the inner electrode layer 20 and the conductive layer are repaired (more) positively replaced by the nickel, copper, nickel-plated copper pig or Made of nickel-copper alloy, 2, 3 series including at least two electroplated layers, the outermost layer of tin, to facilitate subsequent plate or welding; use,; 4" layer J1, 31 visible When the left and right end electrodes 2, 3 of the upper and lower electrode layers 13 4 μ include only two layers of the first electric ore layers 2r and 3r as recording layers, the steel layer 2 is directly disposed on the nickel layer 2丄. -3丄〃上。 d1 The upper and lower insulating layers 4, 5 are made of liquid photosensitive anti-welding Ph-_MeSolderMask, the layer 4 j can be as shown in the figure, the two ends of which are along the laminated body 1 The left and right curved end faces 1 Q, 11 are configured to be symmetrical with each other, as shown by the % force two A diagram, the upper and lower insulating layers 4, 5 are simple or two, and may be due to the upper and lower insulating layers 4, 5 The purpose is to make the upper and lower 7 mutual conduction when the electric ore is avoided in a straight line, that is, the grooves 17. 18, as shown in the sixth B, the reversible treatment of the present invention includes the step of completely coating the layer. Pressing body! Before and after ^^兀件6, also has the function of avoiding the conduction during plating. The side insulating layer 6 can be liquid photosensitive solder resist green paint (LPSM) = side insulating layer diagram, the present invention The reversible overcurrent protection element=. However, if the two sides are not coated with any protective layer after the fifth B, the density distribution before the laminate 1 can be utilized, and the conductive high score is removed. Layer 1, ^ ^ with the appropriate current edge layer 4, 5, only the diagnosis of the laminate 1 and the upper and lower 0, 1 1 can be mineralized on the left and right end electrodes 2 # two curved shape 1 When the conduction is in. 3, to exclude 19 (more) to replace ij - as shown in the seventh HI, is one of the invention, at least two manufacturing methods of the protection element, the -f; Ϋ-type over-current protection eight maps to the eighth! ^ map and the eighth map, the steps include two questions = read the central: conductive polymer layer 12 〃 formed monomer, ^ 丄d丄4 the early body The isolation groove 177, / Sun Yinu / by partition to define a plurality of granular elements, which form 曰, = ..., at least one concave surface at both ends = two: size two two sides i continuous concave surface The number can be based on the grid line on the upper and lower electrodes, and the J predetermined pattern is set to cut several continuityes. (4) • The cut grid line includes the complex m-direction curve y and a plurality of discontinuous transverse lines x, two adjacent The longitudinal curves y are symmetrical to each other; wherein the step (b) of the step (c) can be mutually adjusted; (d) the board: as the eighth D disk, the parent e map, prepare at least The monomer and at least the conductive polymer layer are spaced apart from each other, and are pinched to form a laminated sheet 1 'e coated with LPSM: as shown in FIG. Applying an insulating layer to the upper and lower electrode layers 1 3 〃, 1 4 〃 and covering the insulating groove 17, '(f) pelletizing: as shown in the eighth G diagram, the laminate body 1 is made into a complex f The granular element 'per-grain element has two curved curved walls 1 CT,; [^^, which are symmetrical with each other, and the manufacturing step includes the laminate body according to the longitudinal curve y and the transverse straight line 1 〃 directly punching into a plurality of granular elements; or, as in the eighth X drawing, the laminated body 1 is punched into a plurality of strip-shaped substrates, and then the strip-shaped substrate is The transverse straight line X is folded into a plurality of granular elements; (g) side 20

And f, varnish 6" on the front and back sides of the granular element; pole y ^ mine. As shown in the eighth to eighth figure, the left and right ends of the electric ore, 3 to cover each of the granular elements The two (four) end faces 1 (r, ^, and electrically connected to the upper and lower electrode layers 丄 3 / /, i 4 "; shape two: = f less plating two layers of plating on each of the two granular elements On the curve 1 ^ ' 1 1 , the step includes electroplating the first electric ore layer 2 Q3 ^ < the crucible is a nickel layer or a copper layer, and the outermost second electric ore: 2, 3 2 Layer 2 work '3 working eves? Coating 2 2, 3 2 '' is a tin layer; when the first plating layer 2:, when it is a copper layer, the system further electroplating the nickel layer ' (4) f1'31 继 and subsequent 2〃 32 〃 于 于 于 于 于 于 于 于 于 于 亦可 亦可 亦可 亦可 亦可 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电 电In addition to '5//, only the two curved end faces 1 o' it pass the above-mentioned money layer of the left and right end electrodes 2〃, 3〃, to eliminate the improper conduction. The figure and the ninth to ninth G drawings are the fabrics of the hairdresser. In another embodiment prior to coating the LPSM, the step of the package includes: the steps include: (a) plate making: as shown in the ninth A and ninth b, the electrode layer 1 3 is clamped - the conductive polymer layer 1 2 formed a monomer; (bj first rhyme · · ninth c picture, the remaining number of isolation holes ^ 7 in the electrode of the electrode layer 3; (c The first pre-cutting, such as the ninth C-picture, sets the cutting grid line to the upper and lower electrode layers according to a predetermined pattern, the __ system includes a plurality of continuous longitudinal curves 7 and a plurality of non-continuous horizontal straight lines X, The two longitudinally adjacent longitudinal curves are symmetrical to each other, 21

More material) is replacing the page movement == ninth degree diagram, stacking at least two of the other ones in sequence - such as ~ 曰i masking the formation of the laminate body P; (e) second order. Electric (four) 17 〃 on the laminate The body 1 i is formed by interlacing, whereby the surface is defined as: surface, or has a continuous concave and convex surface, and the designed concave surface or: ^ the number of convex surfaces is determined by the size of the pavement; ((= side) is set according to a predetermined pattern The cutting grid line includes a plurality of continuous longitudinal continuous transverse straight line factories, and the longitudinal curves of the adjacent two pairs are alternately set in the middle b) and the step (.), and the step U And the step dt side and the pre-cutting step can be mutually adjusted; (g) coating the LpSM: for example, the drawing of the insulating layer 4/, covering the upper and lower electrode layers, and covering the isolation Groove; follow-up process is the same as above. Please also refer to the seventh figure, and the second clothing method of the eighteenth to tenth κ drawings, the steps of which include: (a) plate making: as in the tenth a picture and the + Β = 'preparation - by The upper and lower f-pole layers 1 3 〃, 丨 4 〃 pinch the conductive polymer ^ 1 2 to form a single body; (b) the first etching: as shown in the tenth c-figure, etch the plurality of isolation grooves 2 respectively The two upper and lower electrode layers 1 3", 1 4 ", the isolation slot 7 is a curved surface having a concave surface, and (.c) repeatedly. The monomer and at least the conductive polymer layer 1 2 " are spaced apart from each other and are pinched to form the laminate body 1"; (d) a perforation · as shown in the tenth figure, the pre-cut line is on the upper and lower electrodes Layer 1 3 ”, 1 4 " and set array hole 1 9 (drilling 1es) Bayer #海层魔板体 1 /, the hole 1 9 '' is tied to the grid 22 = intersection; (e) The second etching: as shown in the tenth 1st, respectively, etching the plural: selling, the groove 1 r is formed in the upper and lower electrode layers 13' 1 4', and the insulating groove 1 71 of the layer 2 is r-shaped, thereby forming a region Define the number of granular elements, Forming the isolation trench 1 is formed along the hole /q//$; (f) coating LPSM: as shown in the tenth G diagram, coating the insulating layer 4// 4 upper and lower electrodes 1 3 ”, 14 And cover the isolation tank 1 7 "; g) pellet: as in the tenth map, directly punch the laminate into a Shanghai = surface element; or first fold the laminate i" The plurality of strips are formed into a plurality of strips, and then folded into a plurality of granular elements; each of the granular elements is woven at both ends with a mutually symmetrical through-hole wall corresponding to the holes 19; (h) side: ' 10I, varnish 6" on the front and back sides of the granular element; r and (i) electroplating: as shown in the tenth J, electroplating left and right end electrodes 2,,, 3// = coated each grain element On both end faces of the device, and electrically connected to the upper electrode layer 1.3〃, 14〃, respectively; and the left and right end electrodes 2′ 3// include the at least two layers of the electric ore layer . In addition, the heng (^), immersion step may be omitted as described in the first production method. For the μ side, please refer to the seventh figure, and the other embodiment of the second material of the tenth Η-picture, which is from the step U) to the step (f), and is changed by the pelletizing in the step (h). For the stripping: as for the tenth ^1, the laminate body 1 is first folded into a plurality of strip-shaped substrates, dipped, and then the two positions before and after the strip-shaped substrate, and then folded into a rehearsal ' Electric mine. In addition, the side sticking step is also narrower than the first method of making. Therefore, it can be seen from the foregoing that the present invention has the following defects. i. The use of the component electrode is curved, and the surface area of the heat and electric ore is increased, so that the heat accumulation affects the mouth of the mouth of the dry mouth and the mouth of the mouth is 4 inches. Application, and 23 problems caused by poor plating density and poor solderability; 2) The curves of the terminal electrodes are symmetrical to each other to avoid internal stress remaining inside the component after soldering, thereby avoiding body cracking; and 3. Using the upper and lower electrode layers along the The shape of the terminal electrode is etched into a curve whose effective (overlapping) area can be kept to a maximum under the same dimensional requirements. However, the above is only the preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, and the equivalent structural changes of the present specification or the drawings are all included in the same. Within the scope of the present invention, to protect the rights and interests of the inventors, Chen Ming. [Simple diagram of the diagram] The first diagram is a schematic diagram of the characteristics of the PPTC thermistor; the second diagram A to the second diagram E is the first conventional PPTC thermistor production process is not intended, the third diagram A to The third I diagram is a second conventional PPTC thermistor manufacturing process, and the fourth A to fourth diagrams are not intended for the third conventional PPTC thermistor fabrication process, and the fifth A diagram, The structure of the first embodiment of the multiplexable overcurrent protection device of the present invention is not intended; FIG. 5B is a top view of the first embodiment of the multiplexable overcurrent protection device of the present invention; The figure is a schematic structural view of a second embodiment of the multiplexable overcurrent protection component of the present invention; and the sixth diagram is a third real secret of the multiplexable overcurrent protection component of the present invention. The schematic diagram of the page embodiment; the seventh figure is a flow chart of the multiplexable overcurrent protection component of the present invention; the eighth through eighth to eighth K and the eighth X are the multiplexable A schematic diagram of a manufacturing process of the first embodiment of the current protection component; 9A to 9F are schematic diagrams showing a manufacturing process of a fourth embodiment of the multiplexable overcurrent protection device of the present invention; and 10A to 10J and FIG. A schematic diagram of the manufacturing process of the fifth embodiment of the multiplexable overcurrent protection component. [Main component symbol description] The first conventional nickel-plated electroplated copper foil plate tooth comb-like groove 10a channel 11a PPTC material 2 a epoxy-modified acrylic resin protective glue 4 a second conventional nickel plate lb channel 10b Hole axis lib Separation groove 12b PPTC material 2 b Copper layer 3 b Protective layer 3 b Tin layer 5 b Third conventional copper foil plate 1 c Hole axis 11c 25

Separation groove 1 2 C PPTC material 2 nickel-copper layer 4 c protective layer recording layer 6 c Reversible overcurrent protection element laminate 1 of the present invention curved end face 1 0 concave surface 102, 112 continuous concave-convex surface 101, Conductive polymer layer 12 upper and lower electrode layer 13 conductive layer 15, inner electrode 2 0 first plating layer 2 1 , 3 1 nickel layer 2 3 ^ tin layer 2 2, 3 2 (^2 insulating layer 4, 5 laminate body 1" Upper and lower electrode layer 13' Upper and lower isolation groove 17-, Array hole 1 9" Internal electrode 2 0" Terminal electrode 2^3 First plating layer 2 1^ Second plating layer 2 2^ Nickel layer 2 3,, Insulation layer 4", .6 upper and lower isolation grooves 17 terminal electrodes 2, :, 2 r, 3 r ) 3 3 ^ , , 3 2 . Side insulation layer 6 polymer layer 12 1 4" 1 8"

26 more :·丨换 i continuous longitudinal curve y, y discontinuity transverse straight line χ, χ

27

Claims (1)

Repair (more) original ten, the scope of the patent application: - 1, a multiplexable overcurrent protection component, comprising: - a laminated body comprising at least one conductive polymer layer disposed at the high conductivity a lower electrode layer on the lower side of the molecular layer, and at least one internal electrode selectively disposed adjacent to the conductive polymer layer; wherein the laminate system has two curved end faces that are symmetrical to each other; The conductive polymer layer has a positive temperature coefficient (Positive Temperature Coefficient) characteristic; the left and right end electrodes respectively cover the two curved end faces of the laminate, and are electrically connected to the upper and lower electrode layers in a staggered manner, respectively. The inner electrode, the upper and lower electrode layers and the inner electrode layer are electrically connected to each other; and the upper and lower insulating layers are respectively covered on the upper surface of the upper surface of the laminate and filled between the left and right end electrodes; wherein The left and right end faces of the upper and lower electrode layers are curved in a symmetrical shape corresponding to the left and right curved end faces of the laminate. 2. The multiplexable overcurrent protection component of claim 1, wherein: the laminated body comprises a plurality of conductive polymer layers disposed at intervals in the two conductive polymer layers. At least one inner electrode layer and two upper and lower electrode layers provided on the outer side of the outermost conductive polymer layer. 3. The reversible overcurrent protection element of claim 2, wherein the curved end face has at least one concave surface. 4. The reversible overcurrent protection element of claim 2, wherein the curved end face has a continuous concave and convex surface. 28 1286329 5. The multiplexable overcurrent protection component of claim 2, wherein the upper and lower electrodes and the inner electrode layer are respectively spaced apart from the left and right end electrodes to form a separation groove which is interlaced with each other, and The upper and lower insulation layers respectively cover the upper and lower isolation grooves. 6. The double-over overcurrent protection element of claim 2, wherein the upper and lower electrode layers are made of copper, copper, or copper alloy. 7. The multiplexable overcurrent protection component of claim 2, wherein the left and right end electrodes comprise at least two electroplated layers, wherein the outermost layer of the electric ore layer is a tin layer. 8. A reversible overcurrent protection element as claimed in claim 7 wherein the innermost plating layer is a nickel layer or a copper layer. 9. The multiplexable overcurrent protection element of claim 2, wherein the upper and lower insulation layers are made of liquid photosensitive green paint (LPM). 10. The multiplexable overcurrent protection element of claim 2, wherein the upper and lower insulating layers are coated along the configuration of the two curved end faces of the laminate, and have mutually symmetrical curved sides. 1 1. The multiplexable overcurrent protection element of claim 2, further comprising a side insulating layer completely coated on both sides of the front and back of the laminate. 1 2. A reversible overcurrent protection component according to claim 1 of the patent scope, wherein the insulating layers on both sides are made of liquid photosensitive anti-welding green paint. 1 . A method for fabricating a multiplexable overcurrent protection device, the method comprising the steps of: 29 1286329 providing a two-electrode layer to sandwich a conductive polymer layer to form a single body; respectively etching a plurality of isolation trenches on the two electrodes of the monomer Forming at least two of the monomers and at least one of the conductive polymer layers are spaced apart from each other and pinched to form a laminated sheet; wherein the electrode layers are etched with a plurality of insulating grooves, adjacent to each other The isolation and the grooves are arranged alternately with each other, whereby a plurality of granular elements are defined by the division, and the separation groove is curved; the cutting grid is set to the upper and lower electrode layers according to a predetermined pattern, and the cutting grid line includes a plurality of strips The continuous longitudinal curve and the plurality of discontinuities traverse the straight line, and the longitudinal curves adjacent to each other are symmetrical to each other; an insulating layer is coated on the upper and lower electrodes and covers the upper and lower insulating grooves; a plurality of granular elements each having left and right curved sidewalls symmetrical to each other; and plating left and right end electrodes to coat each of the particles The two shaped end face of the element, and are alternately electrically connected to these electrode layers. The method of fabricating a replicable overcurrent protection component according to claim 13 wherein the curved end face has at least one concave surface. A method of fabricating a replicable overcurrent protection component according to claim 13 wherein the curved end face has a continuous concave and convex surface. [16] The method of fabricating a replicable overcurrent protection component according to claim 13 wherein the step of fabricating the granular component comprises directly stamping the laminate body according to the longitudinal-direction curve and the transverse straight line ( Punching) . 30 1286329 A plurality of granular elements. The method for fabricating a replicable overcurrent protection component according to claim 13 wherein the step of fabricating the particulate component comprises: pressing the laminate body into a plurality of strip substrates according to the longitudinal curve, and then The strip substrate is folded into a plurality of granular elements according to the transverse straight line. · 1 8. Reversible overcurrent protection as claimed in Article 13 of the patent application. The method of manufacturing the component further includes: before the plating of the left and right end electrodes: the side is varnished with insulating paint on the front and back sides of the granular component. 1 9. A method of fabricating a replicable overcurrent protection Φ component according to claim 13 wherein at least two plating layers are plated on the two curved end faces of each of the granular components, the step comprising: The first electroplated layer of the ore is on the two curved end faces, and the first electric ore layer is a recording layer or a copper layer. A method of fabricating a replicable overcurrent protection device according to claim 19, wherein the step comprises plating a second plating layer on the first plating layer, the second plating layer being a tin layer. 2 1. A method for fabricating a replicable overcurrent protection component according to claim 20, wherein when the first plating layer is a copper layer, the nickel layer is further electroplated between the copper layer and the tin layer. . 2, a method for fabricating a multiplexable overcurrent protection device, the method comprising: providing a single electrode layer to pinch a single conductive polymer layer to form a monomer; etching a plurality of isolation trenches in the electrode layer of the cell; Stacking at least two of the monomers and another electrode layer to form the layer-laininated sheet; - 31 1286329 etching the plurality of isolation trenches on the electrode layers of the laminate body, adjacent to each other The grooves are arranged alternately with each other, whereby a plurality of granular elements are defined by the partition, and the insulating groove is curved; the cutting grid is arranged on the upper and lower electrode layers according to a predetermined pattern, and the cutting grid line comprises a plurality of continuous longitudinal curves and a plurality of discontinuities transverse to a straight line, the longitudinal curves adjacent to each other are symmetrical to each other; an insulating layer is coated on the upper and lower electrodes to cover the upper and lower isolation grooves; and the laminated body is formed into a plurality of granular elements Each of the granular elements has a curved side wall which is symmetrical to each other; the left and right end electrodes of the upper and lower sides of the electric iron are used to coat the two of the granular elements Curved end wail. ^ The hole-shaped 端面-shaped end face has a reversible over-current protection with a concavity and convex surface element and a bran, such as the patent application scope 2 H, the 列 column dry circumference 2nd item 1286329 Material: It is folded into a plurality of granular elements in a straight line. The system of components #such as the application of patent paratax _2 2 of the reversible overcurrent protection side "paint = with = terminal electrode miscellaneous: components such as the patent scope of the second item of the reusable or overcurrent protection one # go, At least two electroplated layers are plated on each of the two St-shaped curved end faces, the reading step includes electroplating, and the electroplated layer is on the surface of P. The first electroplated layer is a nickel layer or a copper strip. [29] A reversible overcurrent protection method according to claim 28, wherein the step comprises electroplating a second electroplated layer on the electroplated layer, the second electroplated layer being a tin layer . A method for fabricating a replicable overcurrent protection device according to claim 28, wherein when the first plating layer is a copper layer, the layer is further electrically layered between the layers. 3, a method for fabricating a multiplexable overcurrent protection device, the method comprising: providing a two-electrode layer to squeeze a conductive polymer layer to form a single body; respectively etching a plurality of isolation trenches in the two electrode layers of the monomer; Preparing at least two of the monomers and at least one of the conductive polymer layers are spaced apart from each other and sandwiched to form a laminated sheet; wherein the electrode layers are etched with a plurality of insulating grooves, and the electrode layers adjacent to each other Forming the isolation grooves are staggered with each other, thereby defining a plurality of granular elements, and the insulating grooves are curved; s history array holes (dri 11 i ng h〇1 es) are worn by the laminate a body, wherein the upper and lower electrode layers of the laminate body are pre-cut with a ruled line, the hole 33 1286329 is at the intersection of the grid lines; an insulating layer is coated on the upper and lower electrodes and covers the isolation groove; j laminate 1 is a plurality of granular elements, each / granular element has mutually permeable through-hole walls on both end faces; and the electrodes are bent to the left and right sides of the electrode to cover the two end faces of each granular element, and are respectively staggered Connected to these electrode layers. 3 2. The method for manufacturing a reversible overcurrent protection device according to claim 31, wherein the laminating step of the laminate comprises directly punching the plurality of granular elements according to the grid. 3 3. Reversible overcurrent protection as claimed in item 32 of the patent application The method of fabricating the component further includes before the plating of the left and right end electrodes: the side is varnished with insulating paint on the front and rear sides of the granular component. A method for fabricating a reversible overcurrent protection crucible according to claim 31, wherein the laminating step of the laminate comprises first folding the laminate into a plurality of strip substrates. Then fold (4) complex components. The metric system, such as the multiplexable overcurrent protection = 'the manufacturing method of the patent application scope § 4, is further packaged before the folding into a plurality of granular components; the side is varnished with insulating varnish on the sides of the strip substrate before and after . The component, such as the multiplexable overcurrent protection manufacturing method of claim 31, further comprises: before, after, plating the left and right end electrodes: the smear, the smear, and the smear on both sides of the granule. An apparatus, such as the method of claim 4, wherein the plating is performed on at least two layers of plating on each of the two sides of the granular band. The layer is on both sides, and the first plating layer is a nickel layer or a copper layer. 34 1286329 3 8. The method for fabricating a replicable overcurrent protection device according to claim 37, wherein the step comprises plating a second plating layer on the first plating layer, the second plating layer being tin Floor. 3. The method for fabricating a replicable overcurrent protection device according to claim 38, wherein when the first plating layer is a copper layer, the nickel layer is further electroplated between the copper layer and the tin layer. . _ 4〇, a method for fabricating a multiplexable overcurrent protection device, the method comprising: providing a single electrode layer to pinch a single conductive polymer layer to form a single body; I insect engraving a plurality of isolation grooves at the electrode of the monomer a layer; at least two of the cells are sequentially stacked to form a laminate body with another electrode layer; and the plurality of insulating layers are etched into the electrode layer of the laminate body; wherein the two adjacent electrode layers are formed The insulating grooves are arranged alternately with each other to define a plurality of granular elements, and the insulating grooves are curved; Array holes are arranged through the laminate, wherein the upper and lower sides of the laminated body The electrode layer is pre-cut with a ruled line, the hole is at the intersection of the ruled line; an insulating layer is coated on the upper and lower electrodes and covers the isolation groove; and the laminate body is made into a plurality of granular elements, each of which The element is formed on the both end faces with mutually symmetrical through-hole walls; and the left and right end electrodes of the electro-mineral are coated on both end faces of each of the granular elements, and are electrically connected to the electrode layers in a staggered manner. - 4 1. A method for fabricating a multiplexable overcurrent protection - 35 1286329 component, wherein the granulation step of the laminate comprises directly pulsing the plurality of granules according to the grid. 4 2. The method for manufacturing the multiplexable overcurrent protection component according to the 41st patent application scope further includes: before the plating of the left and right end electrodes, the side is immersed with the insulating paint on the front and the back sides of the granular component. · 4 3. The method of manufacturing the component according to the method of claim 40, wherein the step of granulating the laminate comprises first folding the laminate into a plurality of strip substrates. It is then folded into a plurality of granular elements. 4 4. The method for manufacturing the multiplexable overcurrent protection _ component according to the patent application scope § 4, further including before the folding into the plurality of granular components: the side is immersed in the varnish on the front side of the strip substrate ^ 4 5. The method for fabricating the multiplexable overcurrent protection component according to claim 40 of the patent scope further includes: before the plating of the left and right end electrodes, the side is varnished with insulating paint on the front and rear sides of the granular component. 4. A method of fabricating a replicable overcurrent protection component according to claim 40, wherein at least two plating layers are plated on the both end faces of each of the granular components, the step comprising electroplating the first plating The layer is on the two curved end faces, and the first electric ore layer is a recording layer or a copper layer. 4. A method of fabricating a replicable overcurrent protection device according to claim 46, wherein the step comprises plating a second plating layer on the first plating layer, the second plating layer being a tin layer. 4. A method of fabricating a replicable overcurrent protection device according to claim 47, wherein when the first plating layer is a copper layer, a nickel layer is further electroplated between the copper layer and the tin layer. _ 4 9. A method for fabricating a multiplexable overcurrent protection element, the step of which is: 36 1286329 comprises: preparing a laminate body formed by sandwiching a conductive polymer layer between the upper and lower electrode layers; respectively etching a plurality of discrete discontinuities The groove is formed on the upper and lower electrode layers, and the insulating grooves of the laminate body are alternately formed, thereby defining a plurality of granular elements according to the partition, wherein the insulating groove is curved; and the cutting grid is arranged on the upper and lower sides according to a predetermined pattern. An electrode layer comprising a plurality of continuous longitudinal curves and a plurality of discontinuous transverse straight lines, wherein the longitudinal curves adjacent to each other are symmetrical to each other; and an insulating layer is applied to the upper and lower electrodes and covers the Separating the groove; forming the laminate body into a plurality of granular elements, each of the granular elements having mutually curved left and right curved sidewalls; and plating the left and right end electrodes to cover the two of the granular elements The curved end faces are electrically connected to the upper and lower electrode layers, respectively. 50. The method of fabricating a replicable overcurrent protection component according to claim 49, wherein the curved end face has at least one concave surface. Lu 5 1. A method of fabricating a replicable overcurrent protection component according to claim 49, wherein the curved end face has a continuous concave and convex surface. 5 . The method of fabricating a multiplexable overcurrent protection component according to claim 49, wherein the step of fabricating the granular component comprises directly punching the laminate body according to the longitudinal curve and the transverse straight line. Into a plurality of granular elements. 5 3. The method for fabricating a detachable overcurrent protection 37 1286329 component according to claim 49, wherein the step of fabricating the granular component comprises punching the laminate body into a plurality of strip substrates according to the longitudinal curve. Then, the strip substrate is folded into a plurality of granular elements according to the transverse straight line. 5 4. The method for fabricating the multiplexable overcurrent protection component of claim 49, further including before plating the left and right end electrodes: . The side is varnished with insulating paint on the front and rear sides of the granular component. 5. The method of fabricating a replicable overcurrent protection component according to claim 49, wherein at least two plating layers are plated on the two curved end faces of each of the granular components, the step comprising electricity The first electroplated layer of the ore is on the two curved end faces, and the first electric ore layer is a recording layer or a copper layer. 5. The method of fabricating a replicable overcurrent protection device according to claim 5, wherein the step comprises plating a second plating layer on the first plating layer, and the second electrode layer is a tin layer . 5. A method of fabricating a replicable overcurrent protection device according to claim 56, wherein when the first plating layer is a copper layer, a nickel layer is further electroplated between the copper layer and the tin layer. 5 8. A method for fabricating a multiplexable overcurrent protection device, the method comprising: preparing a laminated sheet formed by sandwiching a conductive polymer layer between upper and lower electrode layers; and pre-cutting lines on the upper and lower sides The electrode layer and the array of drilling holes are disposed through the laminate body, and the holes are at the intersection of the grid lines; and the plurality of discontinuous isolation grooves are respectively etched on the upper and lower electrode layers, and the isolation plate of the laminate body Interlaced to form a plurality of granular _ 38 ^ 86629 components, in the broadcast of the goods, the isolation groove is curved, and the isolation groove is formed along the hole; I retanning the edge layer And the upper and lower electrodes cover the insulating groove; in the &amp;, the composite layer is made into a plurality of granular elements, each of the granular elements has a mutually symmetrical through-hole wall; and eight gas plating The terminal electrode is coated on the rain end surface of each of the granular elements, and the blade is electrically connected to the upper and lower electrode layers. </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; A 6 〇, such as the patentable scope of item 59, the multiplexable overcurrent protection = the manufacturing method of the part </ RTI> further steps before the plating of the left and right end electrodes include: then the varnish is applied to the front and back sides of the remainder. 161. The method for manufacturing a multiplexable overcurrent protection element according to claim 58 of the patent application, wherein the step of granulating the laminate comprises first folding the laminate into a plurality of strip substrates. It is then folded into a plurality of granular elements. A 6 2. The method for manufacturing the multiplexable overcurrent protection element according to the sixth paragraph of the patent application scope is as follows: before the folding into the complex component, the side is covered with the side varnish on the front side of the strip substrate . 6 3. If the application method of the multiplexable overcurrent protection component of the patent application scope δ 1 is further advanced, the method includes: the side is immersed with the insulating paint on the front and the back sides of the granular component. I6 2: The versatile over-current protection of 70 parts of the profit-making range of item 5, the towel is made of at least two layers of electricity (four) on the two end faces of each granular element. The first plating layer is on the curved end faces of the two 39 1286329, and the first plating layer is a nickel layer or a copper layer. 6. The method of fabricating a replicable overcurrent protection device according to claim 64, wherein the step comprises plating a second plating layer on the first plating layer, the second plating layer being a tin layer. 6. A method of fabricating a replicable overcurrent protection device according to claim 65, wherein when the first plating layer is a copper layer, a further electro-mineral layer is interposed between the copper layer and the tin layer. 40 1286329 Figure 7 1286329 VII. Designated representative map: (1) The representative representative of the case is the picture (5A). (2) Brief description of the components of the present diagram: Resolvable overcurrent protection element laminate 1 of the present invention Conductive polymer layer 12 Upper and lower electrode layers 1 3, 14 Conductive layer 1 5, 16 6 Insulation groove 1 7 18 inner electrode 2 0 end electrode 2 , 3 first plating layer 2 1 , 3 1 second plating layer 2 2, 3 2 end electrode 2, 3 first plating layer 2 1 , 3 1 second plating layer 2 3 2 Insulation layer 4, 5 Side insulation layer VIII. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: