CN1781216A - Electrical contact - Google Patents
Electrical contact Download PDFInfo
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- CN1781216A CN1781216A CN 200480011283 CN200480011283A CN1781216A CN 1781216 A CN1781216 A CN 1781216A CN 200480011283 CN200480011283 CN 200480011283 CN 200480011283 A CN200480011283 A CN 200480011283A CN 1781216 A CN1781216 A CN 1781216A
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01029—Copper [Cu]
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- Manufacturing Of Electrical Connectors (AREA)
Abstract
An electrical contact formed from a plurality of interlaced and annealed wires by weaving or braiding the wires together to form a mesh, annealing the mesh, and cutting the annealed mesh so as to form a plurality of individual electrical contacts. A method for forming a precursor material for use in manufacturing an electrical contact is also provided that includes manipulating a plurality of wires so as to interlace the wires into a unitary structure The unitary structure is then annealed. An electrical contact may then be formed from the precursor material by elastically rolling a portion of the unitary structure so as to form a tube, annealing the tube, and then cutting the unitary structure so as to release the tube thereby to form an electrical contact. An electrical contact may also be formed by folding a portion of the unitary structure so as to form one or more pleats, annealing the pleated unitary structure and then cutting the pleated unitary structure so as to release one or more electrical contacts. The precursor material may also be formed by photo-etching a sheet of conductive material so as to form a mesh, and then annealing the mesh. A connector system may be formed including a housing defining a plurality of openings that are each filled with an electrical contact comprising a plurality of interlaced and annealed wires that have been previously either rolled or pleated.
Description
MULTIPLE-BLADE
The application requires to be indebted to the U.S. Provisional Patent Application No.60/457 that submits on March 24th, 2003,076, the U.S. Provisional Patent Application No.60/457 that submits on March 25th, 2003, the U.S. Provisional Patent Application No.60/462 that on April 8th, 258 and 2003 submitted to, 143.
Technical field
The present invention relates to the electrical interconnection device, particularly between first electronic installation and the substrate or the electrical contact at the interface between an electrical cnnector and the substrate.
Background technology
Highly dense integrated circuit (IC) encapsulation of encapsulation LSI/VLSI N-type semiconductor N device is well-known.The I/O pin of this type of IC encapsulation usually is configured to a dense mode (surpassing 200 tight alternate contacts sometimes) so that the IC encapsulation is direct soldering to a substrate, for example a printed wire or circuit board (PCB) can cause several and relevant significant problem is checked and corrected to any soldering mistake that causes.Known land grid array (LGA) connector makes the IC encapsulation be connected to PCB.Particularly LGA does not need the soldering program when engaging with PCB.Referring to Fig. 1, LGA assembly of the prior art is used to make one to have the IC encapsulation A of the scolding tin projection B on a plurality of flat contact pads or the bottom surface to be connected to one to be arranged on the lip-deep contact C of a PCB D with mode of rule.
A known insulation shell E and a plurality of resilience conduction contacts F that is contained in the passage that is formed among the housing E of comprising of the LGA assembly of prior art.For with flat contact pads B, C engages, resilience conduction contacts F has especially at the upper surface of insulation shell E and the expose portion at lower surface place.When IC encapsulation A by the position that accurately places PCB D stacked arrangement to engage, when conductive sheet B was engaged with conductive sheet C, a normal forces put on the expose portion of each resilience conduction contacts F to engage contact B, C respectively with electric and mechanical mode respectively.
The resilience conduction contacts of LGA has multiple shape in the prior art.The form of resilience conduction contacts commonly used comprises two free ends that the resilient portion with a bending couples together, this resilient portion engage that IC encapsulates and the process of PCB in the storage of elastic energy is provided.Resilience conduction contacts of the prior art can be a single metal structure of form of springs, thereby during also as electrically connected transport element, can provide required elastic reaction at it in service process.Perhaps, also available contact button substitutes, have one in this contact button at the connector to twine, to embed or otherwise to engage with a dielectric core on every side, this contact button usually provides the elastic energy storage in the conductor operating process that a conductivity path is only arranged.Representative ground, for anticorrosion and increase electrically contact, the combination that a kind of barrier metal and heavy metal are electroplated is applied to the spring surface.Situation these plating does not often have the enough thickness that only carries out conductivity along the spring surface.The example of this existing resilience conduction contacts can find in following U.S. patent documents: U.S. Patent number 2,153,177; 3,317,885; 3,513,434; 3,795,884; 4,029,375; 4,810,213; 4,820,376; 4,838,815; 4,922,376; 5,030,109; 5,061,191; 5,101,553; 5,127,837; 5,215,472; 5,228,861; 5,232,372; 5,308,252; 5,350,308; 5,385,477; 5,403,194; 5,427,535; 5,441,690; 5,473,510; 5,495,397; 5,599,193; 5,653,598; 5,791,914; 5,800,184; 5,806,181; 5,810,607; 5,817,986; 5,823,792; 5,833,471; 5,949,029; 6,074,219; And 6,264,476.Therefore aforementioned patent is incorporated herein by reference.
A problem that exists in this technology is the good material that is used to construct spring, as high-intensity steel, is not good electric conductor.On the other hand, good electric conductor as copper alloy or heavy metal, often can not provide enough elastic performances.This just needs more resilience conduction contacts, thus with good elastic performance, temperature resistance and high conductance these just known to opposite requirement combine, but not to the requirement of any whole supporting construction.Therefore, need one to be used for LGA receptacle slot or the improved electrical contact of electric connector, this electrical contact can overcome the defective of conventional electrical contact.
Therefore need a kind of good original paper that electrically contacts, have following characteristic: (a) both can be used for the product receptacle slot, and also can be used for test and high temperature ageing receptacle slot, the latter's use needs high-durability; (b) bigger resilient flexibility scope and lower contact force; (c) can transmit high-frequency signal and high electric current; (d) can bear higher working temperature; (e) show high-durability, promptly＞repeated deformation of 500K.
But existing technology lacks the required above-mentioned characteristic of a kind of electrical contact of widespread usage at least.
Summary of the invention
The invention provides a kind of electrical contact, it forms from precursor material, as etching or impression sheet metal, or a plurality of staggered wire.This precursor material can form tubulose or other suitable shape, and is annealed to fix its planform.This annealed structure can be cut into short section then to form a plurality of single electrical contacts.Precursor material is usually by being that a network structure with perforate of default size and dimension forms with the photoetch of a slice conductive material.This net also can form by impressing on a conventional metals work mould.Perhaps, this precursor material can form these wires are staggered to form a netted single structure by handling many one metal wires.The shape of desired electrical contact can be a tubulose by at first the part of precursor material being rolled up, and anneals so that form element for good and all fixedly forms under constraint then.This tubular structure is cut into short section then to form individual electrical contacts.The preferred construction shape comprises the foldable structure of formation from one or more gauffers of precursor material.This structure can be fit to form the gauffer of net or the mould of foldable structure is made by single web frame being compressed into one, next by the gauffer in the annealing mould or folded net with the permanent fixation planform.Be cut into individual electrical contacts then.
In one embodiment, the invention provides the electrical contact of a kind of formation from a plurality of alternation sum annealed metal silks.This electrical contact is usually by many one metal wires being woven into together net or pigtail shape to form a net, anneal this net and cut this annealing net, thereby form many individual electrical contacts and form, the result of annealing operation is that described each individual electrical contacts all has the elastic range that has enlarged.
A kind of method that is formed for making the precursor material of electrical contact also is provided, has comprised and handle many one metal wires, made described wire be staggered to form a single structure.This single structure is annealed then.So the part that a kind of electrical contact that is made of described precursor material can be by this single structure that curls is to form a pipe, the single structure that should curl is annealed, and produces electrical contact formation thereby cut this single structure then to separate this pipe.A kind of electrical contact also can be by folding this single structure part to form one or more gauffers, and the single structure that this is folding is annealed, and the single structure that cuts gauffer then forms to separate one or more electrical contacts.This precursor material also can be by photoetch a slice conductive material to form a net, should net annealing then and form.
One connected system can be formed according to the present invention, comprises that one limits the housing of a plurality of perforates, and each perforate all is filled with an electrical contact of the present invention.In one embodiment, can form a connected system, comprise that one limits the housing of a plurality of perforates, each perforate all is filled with an electrical contact that comprises a plurality of alternation sum annealed metal silks.This connected system also can comprise by a plurality of and is arranged in one and has the electrical contact that the alternation sum annealed metal silk in the single net of at least one gauffer constitutes.
Description of drawings
These and other characteristic of the present invention and advantage will more fully be disclosed and detailed description together with accompanying drawing the specifying of the preferred embodiment of the present invention by following, and same label refers to same parts in the accompanying drawing, in addition therein:
Fig. 1 is the perspective exploded view of LGA assembly of the prior art;
Fig. 2 is the perspective view according to a braiding electrical contact of one embodiment of the invention formation;
Fig. 3 is presented in the process of an electrical contact produced according to the invention, the perspective view that the part that individual wire is twined around a SMIS is analysed and observe;
Fig. 4 is and the perspective view of a LGA assembly, with class mutually shown in Figure 1, but has merged electrical contact formed according to the present invention;
Fig. 5 is the cross-sectional view of LGA assembly shown in Figure 4;
Fig. 6 is the side cross-sectional view that LGA assembly shown in Figure 4 is partly disconnected;
Fig. 7 is the cross-sectional view that is used to form the typical metal silk of electrical contact of the present invention;
Fig. 8 is a cross-sectional view similar to Fig. 7, but demonstration is to be placed on insulating barrier on the wire outer surface;
Fig. 9 be woven wire embodiment overlook front elevation, this woven wire is used to form the electrical contact according to another embodiment of the present invention;
Figure 10 is the enlarged drawing of net shown in Figure 9;
Figure 11 is the vertical view of net shown in Figure 9, shows the process that is involved in a tubular contact according to the present invention;
Figure 12 is the top end view of the part of net shown in Figure 9, pleating back to form another embodiment of the present invention;
Figure 13 is and the cross-sectional view of the cut-out of a similar LGA assembly shown in Figure 6 that difference is to have merged a gauffer net electrical contact;
Figure 14 is the cut-out perspective view that has merged the connected system of individual gauffer electrical contact formed according to the present invention;
Figure 15 is the decomposition diagram of a photomask, and this photomask is used for a slice conductive metal to form net according to still another embodiment of the invention;
Figure 16 is a slice photoetch net, to shown in Figure 9 similar, but produce by light etching process; And
Figure 17 is another sheet photoetch net, to Fig. 9 with shown in Figure 16 similar, but shown the mode of the width that changes the perforate between the cross-point of purlin.
Embodiment
The explanation of preferred implementation answers conjunction with figs. to read, and accompanying drawing also is considered to the part of the whole written specification of the present invention.Accompanying drawing and unnecessary proportional, and some figures among the present invention may on the ratio or on some signal forms for clear and concise and to the point purpose and some is exaggerative.In this manual, relative words are as " level ", " vertical ", " on ", D score, " top " and " end " and derivation vocabulary (as: " flatly " thereof, " below ground ", " ground, top " or the like) should explain with reference to subsequently explanation and the direction shown in the drawings of discussing.These relative words are for convenience of description, might not require accurate direction usually.Comprise " internally " correspondence " externally ", " longitudinally " correspondence " horizontal ", and similarly express, in appropriate circumstances, be interpreted as relative to each other, or with respect to a prolongation axle, or pivot or axle.About set up, joint and similarity relation, such as " connection " and " being connected to each other ", unless otherwise express, otherwise that indication is a kind of relation structure wherein is fastening indirectly or set up directly or by intermediate structure each other, and the setting up or concern of two removable or rigidity.Vocabulary " effectively connect " is so a kind ofly to set up, engage or connect, thereby allows dependency structure to rely on this relation and running as expected.In claims, device+function subordinate clause is used to contain printed instructions or accompanying drawing is illustrated, suggestion or the structure that clearly shows to be to implement the written function of being stated, not only comprises equivalent structures, also comprises equivalent structure.
Referring to Fig. 2～Fig. 6, the invention provides a kind of electrical contact 2, comprise that one interweaves or metal structure that weave, annealing, so that comprise a big elastic range as forming results that this metal structure provides a plurality of individual purlins section 6.Electrical contact 2 can be by at least three or four discrete metal wire knitted are formed together, thereby soon wire is synthesized together they is interlocked to form a single structure, therefore an electrical contact precursor net 12 of formation or tubular shape (Fig. 2-6 and Figure 11-12) or sheet (Fig. 9-10 and Figure 13-17).Easily, because it is that the combination of alternation sum annealed metal silk 8 no longer needs any additional complete or coating, co-extruded or the support structure of casting fully, tubulose embodiment of the present invention has not required that one has centered on central support structure wiry, and perhaps a wire is arranged on outside or the inner supporting structure in the electrical contact shape of shaping.In other words, only comprising one when being treated to the net of the shape that be fit to connect two or more adjacent structures cleverly, electrical contact promptly can be its specific purpose operation.Comprise a unbraced structure with regard to electrical contact 2 of the present invention in this respect.
In the embodiment of a braiding, 8 stainless steel wires 8 are woven in together to form a tubular electrical contact 2.In this is provided with, each wire 8 is in order to interweave with each adjacent wire 8 and to adopt a spiral path, meanwhile, each wire 8 only experiences sufficient elasticity distortion, that is to say that each wire 8 will be showed the on all four flexural property of elastic limit part with its material beneath distinctive " stress-strain " or " power amount of deflection " curve.In processing procedure, do not cause plastically deformable in the wire 8 in fact.And, should understand intersection/cross over point 9 places of wire 8 in net 12, there be not interconnecting of welding or other machinery between the adjacent part of wire 8.The result of this structure setting is that the adjacent part that limits each wire 8 of each intersection/cross over point 9 relative to each other is movably.In being woven into pigtail shape or staggered structure, when the ratio of contact diameter and laying length less than a half, even when being cut into short section after the annealing, be the place that each wire curves length, obtain mechanical stability and be found to be effectively at laying length.Therefore can make a diameter with enough effects electrical contact greater than 10mils.
Rather important, this tubular electrical contact of braiding can be annealed and once strain the wire 8 that relaxes, especially at a plurality of intersection/cross over points 9 places.Metal as stainless steel and copper, comprises a common stereo crystal structure.The particularly concrete variation of this crystal structure (face-centered cubic lattice) is given these metals and is become the ductility of curved shape to allow wire 8 elastic bendings, as by in mobile axle 20 (Fig. 3) knit wire or it is weaved into the pigtail shape on every side.On the other hand in the present invention, wire 8 does not have this bad dislocation or plastically deformable in the braiding process, thereby but in the net 12 wire 8 of the distortion of elasticity annealing fully eliminated the slip that the elastic stress that is stored in the wire produces a controlled metallic crystal.Like this, this metal is made up of standard crystal, and this crystal is by discharging owing to interweave or knitting process and the elastic stress that produces in each wire is fixed their knitting structure.Therefore, wire 8 does not flick when being cut into individual electrical contacts 2, but the state that will keep the integrality of their institute's composite structures and keep being woven together.
Representative is that traditional electrical contact structure is by forming metal deformation to moulding scope with the desired shape of permanent fixation.Usually be impossible reach the desired shape that obtains by a forming step, but will implement distortion until obtaining final shape through series of steps.A crooked wire can make its hardening, and this will cause the defective of structure, structure dislocation as known.These defectives interference further are out of shape and are made metal hardening grow so that be difficult for quilt bending once more, in case and cause the metal bending just to be fixed.Annealing operation comprises the method for the electrical contact of the spring structure with less relatively space as production, and is very important in the present invention.Therefore the normally less size of structure of the present invention is difficult to traditional bending and forming process.If a tubular structure is formed by plastic deformation, the cross section of individual wire also will be subjected to gross distortion simultaneously, and this is not that mechanical performance is desired.
Among the present invention, structure formation only relates to the strain in curling, weave into pigtail shape and other operation in essence.Under strain, if the structure of shaping does not support constraint then can not be held.Otherwise this structure will be as the result of elastic recoil and is collapsed.Advantageously, electrical contact of the present invention can retrain formation in preceding shape, under enough high temperature, they and the elastic stress of being stored are annealed jointly then, thereby dislocation will produce and move the elastic stress of being stored with the shape release of permanent fixation electrical contact.Deformation extent in the elastic range is confined so that can not change as transverse shape wiry, and easier design mould or other restraint devices.One folding or folded structure when this structure is in the suitable mould of the design that is used for retraining or other fixture strain, can form by this structure of annealing.For a resilient contact structure of curling, a restraint device that suitably designs for the maintenance tubular form is essential in annealing process.In one embodiment, net 12 provides a cardinal principle helical structure by oneself being wrapped up to form a plurality of coating to a pipe (Figure 11).Weave under the tubular structure situation of pigtail shape one, this structure is from the role who takes on restraint device in annealing process before cutting.
The annealing of net 12 discharged a result as knitting process in wire 8 intrinsic elastic stress, particularly sentenced by the intersection/cross over point 9 of strain and make its bending or curve at wire 8.Lack this annealing steps and structure, wire 8 and net 12 will under the situation as a polymerization or resiliency supported core or housing, flick fully lacking any other inside or external support structure of fixing with net 12.Individual wire 8 is woven into a structure with intrinsic grand elastic characteristic, and the power flexural property that the combination of individual wire fixing annealing steps in its braiding structure is provided with is provided special enhancing.When therefore being woven into net 12 according to the present invention, annealing then, a plurality of wires 8 provide a resilient electrical contact structure of the elastic range with special increase.In order to keep a surface of good situation, should in the controllable pressure stove, heat-treat under the suitable temperature, with reach stainless special rank or, in the embodiment that takes second place, realize copper alloy by oil hardening to reach maximum intensity.
According to the present invention, electrical contact 2 also can use as a conventional metals silk braiding machine (not shown) by three, and four or more loose weave or Conductive fiber or the wire of weaving into the pigtail shape are made.For example, the metal wire knitted machine being used for becoming electricity or electronic cable with as electromagnetic protection metal or synthetic metal wire knitted for a long time, or is woven into hydraulic hose and as the rope of a payload structure in industry.A this seam loop that is fit to formation electrical contact 2 is a moon First Five-Year Plan cylindricality machine, and the bobbin conveyer that wherein transmits the individual wire 8 that will weave is moved along mutual circle or bow-shaped route around the braiding point by the zigzag rotor on angle gear or the deck.Among the present invention, this braiding point can be provided with along a removable cylindrical mandrel 20 or some other removable center support (Fig. 2).The bobbin conveyer of half is along an interaction path, move around this braiding point (being provided with) in a direction along removable cylindrical mandrel 20, in the opposite direction along the braiding point operation of another interaction path, this path intersects in each mutual direction with first path second half conveyer simultaneously.When this two covers conveyer in the opposite direction around this when operation braiding point, the paths intersect of each conveyer and another conveyer, weaving is together during in braiding in their polymerizations for the wire that leaves bobbin.One continuous pipe of electrical contact precursor material is extracted out from this conventional metals silk braiding machine.This electrical contact precursor then is annealed, and is that cutting position is handled then, laterally cuts in this position to form individual electrical contacts 2.This machine is well-known in this technology, as together as with reference to the United States Patent (USP) 3,783,736 of file; 5,085,211; Disclosed in 5,257,571 and 5,931,077.
The braiding machine that is used to form the another kind of form of electrical contact 2 is a rotary braiding machine (not shown).In these machines, a cover inner carriers is arranged, a cover outer carriers and is overlapped the wire harness guide plate between inside and outside conveyer.This inside and outside conveyer be rotation so that follow a rightabout circular path around braiding point.This guide plate is arranged in the beam path from the conveyer of outside.These guide plates make wire from outer carriers in the paths intersect of inner carriers, thereby make the wire weaving.So the wire polymerization of weaving weaves electrical contact 2 in the braiding point to form.At this, another, a continuous pipe of electrical contact precursor material is extracted out from described rotary braiding machine, and annealing is laterally cut with the cutting position that forms individual electrical contacts 2 places it then and is handled.This machine also is well-known in this technology, as what disclosed in the United States Patent (USP) 4,275,638 of conduct with reference to file.
In fact suitable conductivity fiber or wire comprise that specific insulation is lower than any fiber material of about 100 μ Ω/cm, preferably about 2-5 μ Ω/cm.Be typically, this conductivity fiber should be conductive metal wires, as tungsten and its alloy, stainless steel or copper alloy, and the part (label 25 among Fig. 2) that this conductivity fiber can useful high conduction metal coating, for example silver, palladium, rhodium, the multiple alloy of Jin Heqi.Selectively, suitable conductivity fiber can be made by changing electrical insulating fibre, such as being incorporated in natural or synthesized polymer body or other material such as the carbon by giving agent just like the conduction of metallic.When the condensate synthetic can not bear special annealing temperature, can use a ceramic/metal synthetic to obtain good effect.
Typically, be suitable for conductivity wire diameter of the present invention in .025-.1 millimeter scope.Opposite wire cross put space (label 26 among Fig. 2) between the adjacent conductor of 9 measurements representative between the .1-.5 millimeter.With reference to Fig. 7 and Fig. 8, wire 8 can be that bare wire also can have an insulating barrier 27 of using on the outer surface.In all cases, the pine that braiding all should be enough remains with gap or slit 8 of adjacent wire, so that in the press process of vertically using, wire 8 forms a plurality of elastically deformables purlin section 6 so that a desired elastic force to be provided.Advantageously, electrical contact 2 annealed operations are fully to be fixed on individual wire 8 its bending or curve shape and as a structure original paper or an assembly of mesh grid 12.When the temperature that stainless steel wire is annealed should be controlled at about 500 ℃ of-600 ℃ of scopes, in most application, be preferably about 550 ℃.
Consult Fig. 4, Fig. 5 and Fig. 6, IC encapsulation A can comprise that the LGA assembly of electrical contact 2 of the present invention is electrically connected to tracking circuit PCB D with one.Each electrical contact 2 is arranged in the perforate that forms among the housing E, so that first end 31 of each electrical contact 2 is located on the housing E surface, second end 33 is located under the housing E surface (Fig. 5).Selectable, a housing with a plurality of blind holes 35 is arranged on IC encapsulation A and goes up in corresponding an array of array of contact chip B, so that encapsulate A and can make inner a connection on the PCB D or between the circuit tracing of the inside at IC.
In the another embodiment of the present invention, wire 8 can be woven into an initial plain net 40 (being made up of warp thread and weft yarn wire), can be shaped then to make multiple contact structure.For example, but net 40 self curl to form a rolled contact 42 (Figure 11 and Figure 12).Net 40 parcels self are to form a plurality of coating, for rolled contact 42 provides a cardinal principle helical structure (Figure 11).Each rolled contact 42 then can be by cutting from net 40 and assembling in a suitable housing of disclosing as mentioned.Selectable, net 40 can be folded a plurality of gauffers 45 that limited by a plurality of grooves 47 and burr 49 to make.One engagement edge is limited along the border of gauffer 45.Gauffer electrical contact 45 can and be arranged in a plurality of passages or perforate 35 in the housing E, so that oppose (Figure 14) separated with contact chip B in the position of contact edges 50 from net 40 cutting then.Like this, gauffer 45 is supported on the contact in the perforate 35.In operation, when IC encapsulation A when housing E moves, contact chip B connects the contact edges 50 of gauffer electrical contact 45, makes 45 distortion of gauffer electrical contact to produce a synthetic contact force thus.Here, another, allow annealing gauffer electrical contact 45 or rolled contact 42 in wire 8, to produce solid shape.Under the situation of contact edges 50, one has the suitable forming-tool of a gauffer punch press and die set, can be in annealing operation near net 40 so that remain on the structure setting of elastic forming wire 8.
In a further optional embodiment, a net 60 can form by a photoetch operation, and a mask 64 is used to a slice conductive material in this operation, as: stainless steel 68, and according to conventional method photoetch (Figure 15).Resulting plain net 60 is formed by intersecting the purlin array, and this intersection purlin limits an opening array, and plain net 60 can be curled or gauffer then, (Figure 16 and the Figure 17) that is disclosed in as mentioned.Again, be fully to eliminate the elastic stress that is stored in photoetch net 60, photoetch net 60 must curl or pleating after anneal, be controlled with the slip of the metallic crystal of toilet generation.Like this, this metal by from photoetch and or curl or the form of gauffer fixing standard crystal form.The compliance of etching web frame depends on multiple factor, comprises its cross-sectional dimensions, and the ratio of net perforate height and width, as: a rhomboidal opening array.One net 60 can be formed by a rhombus opening array, and this perforate has the different net perforate height and the ratio (Figure 17) of width.Ratio is more little, and the compliance under the low external force effect is just high more.On the contrary, braiding of the present invention or the electrical contact structure of weaving into the pigtail shape have movably junction point, and compliance will depend on the ratio of diameter wiry and contact diameter and laying length.Certainly, a net sheet can form by casting, vacuum coating or other anode (interpolation) metal deposition process according to the present invention.
Should be appreciated that the present invention is not limited only in this announcement and the concrete structure in the accompanying drawings, and also comprise within the scope of the claims any change and equivalent.
Claims (35)
1, a kind of electrical contact comprises many staggered, annealing and unsupported wire.
2, electrical contact according to claim 1, wherein said many wires staggered and annealing comprise the structure of a braiding and annealing, this structure has a plurality of independent purlins section.
3, electrical contact according to claim 1, wherein said many wires staggered and annealing comprise at least three discrete wires that lump together, and described wire is staggered to form a single structure.
4, electrical contact according to claim 1, the wherein said many staggered annealed metal silks that reach comprise eight discrete wires that lump together, and described wire is staggered to form a single structure.
5, electrical contact according to claim 1, wherein said many wires staggered and annealing comprise at least three discrete wires that lump together, described wire is staggered to form the single tubular structure of a no central support structure, and described wire is wrapped in this structure periphery.
6, electrical contact according to claim 1, the wherein said many staggered annealed metal silks that reach comprise at least three discrete wires that lump together, and described wire is staggered to form one had not both had the single tubular structure that external support structure does not have inner supporting structure yet.
7, electrical contact according to claim 4, wherein each described many discrete wire that wire staggered and annealing lumps together with comprising eight spiral types is staggered to form a single structure with described wire.
8, electrical contact according to claim 7, wherein each described many wire staggered and annealing limits a plurality of intersection/cross over points.
9, electrical contact according to claim 8, relative another metal wire of part that wherein limits each metal wire of each described intersection/cross over point is movably.
10, electrical contact according to claim 8, the wires of wherein said many staggered and annealing are in that described a plurality of intersections/the cross over point place comprises a Stress Release.
11, electrical contact according to claim 8, wherein said many wires staggered and annealing comprise one of copper alloy and stainless steel at least.
12, electrical contact according to claim 8, wherein said many wires staggered and annealing comprise the gap between adjacent described wire.
13, a kind of electrical contact is by many one metal wires being woven together to form an elastic network(s) substantially, with this mesh grid annealing, and cuts described braiding, annealing net and forms, so that form a plurality of individual electrical contacts.
14, the electrical contact that forms according to claim 13, wherein said mesh grid is annealed between about 300 ℃ to 1200 ℃ temperature range.
15, the electrical contact that forms according to claim 13, wherein said mesh grid is annealed in about 550 ℃ temperature.
16, a kind of connected system comprises combination:
One housing limits a plurality of perforates; And
One electrical contact comprises place each described perforate many staggered, annealing and unsupported wire.
17, a kind of electrical contact is included in many staggered and anneal wires that are provided with in the single net of a plurality of gauffers.
18, electrical contact according to claim 17, wherein said gauffer comprises a plurality of grooves and burr, and along the contact edges that periphery limited of described gauffer.
19, a kind of connected system comprises combination:
One housing limits a plurality of perforates; And
One electrical contact comprises the neutralize wires of many of each described perforate staggered and annealing of the single net that places at least one gauffer.
20, connected system according to claim 19, wherein said single net comprises a plurality of gauffers.
21, a kind of method that is formed for making the precursor material of electrical contact comprises:
Handle many one metal wires, so that described wire is woven into a single structure; And
With described single structure annealing.
22, method according to claim 21, wherein said single structure is curled and cuts, to form at least one electrical contact.
23, method according to claim 21, wherein said single structure is by pleating and cutting, to form a plurality of gauffer electrical contacts.
24, a kind of method that forms electrical contact comprises:
Elasticity is handled many one metal wires, so that described wire is woven into a single structure;
The part of curling described single structure is to form a pipe;
With described curling single structure annealing; And
Thereby cutting described single structure separates described pipe and forms one first electrical contact.
25, the method for formation electrical contact according to claim 24, a part that wherein repeats the described described single structure that curls are forming a pipe, and the described single structure of described cutting separates the step of described pipe to form a plurality of electrical contacts.
26, a kind of method that is formed for making the precursor material of electrical contact comprises:
Photoetch a slice conductive material is to form a net
The part of curling described net is to form a pipe; And
With described curling net annealing.
27, method according to claim 26, wherein said net are curled and cut to form at least one electrical contact.
28, method according to claim 26, wherein said net by pleating and the cutting to form a plurality of gauffer electrical contacts.
29, a kind of electrical contact that forms by the described method of claim 26.
30, electrical contact according to claim 29, it has different big or small opening arrays that are defined between the staggered purlin.
31, a kind of electrical contact that forms by the described method of claim 24.
32, a kind of electrical contact that is formed by the described method of claim 26, it comprises a plurality of overlapping metal wire layers.
33, a kind of electrical contact comprises a photoetch net, and described photoetch net comprises the staggered annealing purlin array that limits the rhomboid opening array.
34, electrical contact according to claim 33, it has the rhomboid opening array of the different sizes that limited between staggered annealing purlin.
35, a kind of connected system comprises combination:
One housing limits a plurality of perforates; And
One photoetch net comprises the staggered annealing purlin array that limits the rhomboid opening array.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45707603P | 2003-03-24 | 2003-03-24 | |
| US60/457,076 | 2003-03-24 | ||
| US60/457,258 | 2003-03-25 | ||
| US60/462,143 | 2003-04-08 | ||
| US10/736,280 | 2003-12-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1781216A true CN1781216A (en) | 2006-05-31 |
| CN100468869C CN100468869C (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800112834A Expired - Lifetime CN100468869C (en) | 2003-03-24 | 2004-01-14 | Electrical contact |
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| Country | Link |
|---|---|
| CN (1) | CN100468869C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362393A (en) * | 2009-02-25 | 2012-02-22 | 巴斯夫欧洲公司 | Method for producing flexible metal contacts |
| CN106025695A (en) * | 2016-05-20 | 2016-10-12 | 中航光电科技股份有限公司 | Electric connector and electric connector assembly using electric connector |
| CN106099460A (en) * | 2016-08-22 | 2016-11-09 | 上海航天科工电器研究院有限公司 | What a kind of signal transmitted twines wire connection contact element |
| CN109546377A (en) * | 2018-11-23 | 2019-03-29 | 上海航天科工电器研究院有限公司 | A kind of Elastic Contact circle for signal transmission |
| CN109803484A (en) * | 2019-01-10 | 2019-05-24 | 东华大学 | A kind of fabric electric circuit plate and electronic component are detachably connected method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102030586B1 (en) * | 2018-06-20 | 2019-10-10 | 주식회사 아이에스시 | Test connector, manufacturing method of the test connector, and testing method of device-under-test using the test connector |
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2004
- 2004-01-14 CN CNB2004800112834A patent/CN100468869C/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362393A (en) * | 2009-02-25 | 2012-02-22 | 巴斯夫欧洲公司 | Method for producing flexible metal contacts |
| CN106025695A (en) * | 2016-05-20 | 2016-10-12 | 中航光电科技股份有限公司 | Electric connector and electric connector assembly using electric connector |
| CN106099460A (en) * | 2016-08-22 | 2016-11-09 | 上海航天科工电器研究院有限公司 | What a kind of signal transmitted twines wire connection contact element |
| CN106099460B (en) * | 2016-08-22 | 2019-04-12 | 上海航天科工电器研究院有限公司 | A kind of wrapping contact of signal transmission |
| CN109546377A (en) * | 2018-11-23 | 2019-03-29 | 上海航天科工电器研究院有限公司 | A kind of Elastic Contact circle for signal transmission |
| CN109803484A (en) * | 2019-01-10 | 2019-05-24 | 东华大学 | A kind of fabric electric circuit plate and electronic component are detachably connected method |
| CN109803484B (en) * | 2019-01-10 | 2021-07-02 | 东华大学 | Detachable connection method for fabric circuit board and electronic component |
| CN112399710A (en) * | 2020-11-18 | 2021-02-23 | 贵州华阳电工有限公司 | Hollow circuit board connecting structure |
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| Publication number | Publication date |
|---|---|
| CN100468869C (en) | 2009-03-11 |
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Effective date of registration: 20160520 Address after: Singapore Singapore Patentee after: Bewsey Private Ltd. Address before: American New York Patentee before: M.H.Han Effective date of registration: 20160520 Address after: American New York Patentee after: M.H.Han Address before: American New York Patentee before: Li Zeyu |
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