CN1849036B - Thin circuit substrate and its manufacturing method - Google Patents
Thin circuit substrate and its manufacturing method Download PDFInfo
- Publication number
- CN1849036B CN1849036B CN2006100773202A CN200610077320A CN1849036B CN 1849036 B CN1849036 B CN 1849036B CN 2006100773202 A CN2006100773202 A CN 2006100773202A CN 200610077320 A CN200610077320 A CN 200610077320A CN 1849036 B CN1849036 B CN 1849036B
- Authority
- CN
- China
- Prior art keywords
- circuit
- circuit board
- organic film
- film
- flexible organic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a film circuit board and manufacturing method, which comprises the following parts: stiffness in flexure film substrate, wiring on the film substrate and non-electric connecting part of wiring and film substrate surface.
Description
The application is that application number is dividing an application of 02152264.2 application for a patent for invention, and the applying date of original application is on November 21st, 2002, and denomination of invention is " manufacture method of slim circuit board and slim circuit board ".
Technical field
The present invention relates to slim circuit board.
The invention still further relates to the slim circuit board (integrated circuit structure body) of the film like device of the electric equipment that for example uses multilayer circuit board and functional module or light device etc.
Further, the invention still further relates to slim circuit board (lamination circuit) and the manufacture method thereof that the circuit module that will have the integrated formation of connecting portion between flexual circuit board and circuit board is laminated.
Background technology
In recent years, during the multifunction of electronic circuit, miniaturization are making progress rapidly.For example, in mobile telephone and computer, in limited space, form circuit with multiple function.Therefore, need take to discharge the way that from the way of the heat of each circuit generation, also needs to take to make the parts miniaturization.
Fig. 5 shows the mobile telephone that electronic circuit is equipped with in inside.In mobile telephone, a plurality of electronic units 23, microprocessor (MPU) 24, loud speaker 25, microphone 26 have been installed on the circuit board 22 that is installed on the casing 21.According to the mobile telephone of such formation, after the signal that receives on the antenna 27 is transformed into audio signal through the MPU24 processing, by a plurality of electronic units, from loud speaker 25 output sound sound.Also have, the sound sound of collecting at microphone 26 is transformed into audio signal, handles the back from antenna 27 emissions by a plurality of electronic unit 23 usefulness MPU.
But, along with the miniaturization more of electronic instrument, with just not obtaining exothermicity fully in the existing circuit board.Particularly under the situation of mobile telephone, it is impossible making the area of circuit board 22 also more for a short time than the area of a plurality of electronic units.Also have, the circuit board 22 that uses and the thickness of electronic unit 23 are bigger now.Therefore, mobile telephone is difficult to miniaturization, relevant with the increase of manufacturing cost.On the other hand, though also considered scheme with circuit board 22 multiple stratifications, the length of arrangement wire between the sort of situation lower member is elongated, having produced the other problem of the control difficulty of trembling.
Secondly, in order to realize minitype high-performanceization, the circuit board that is used in electric equipment and light device changes to the double sided board that forms circuit on the two sides of substrate from the single sided board that only forms circuit at the single face of substrate, further, change to the multilayer circuit printed circuit board (PCB) that on multilayer, forms circuit, in many electric equipments, adopt the printed circuit board (PCB) of multiple stratification to high-density now.
In the manufacturing process of multilayer circuit printed circuit board (PCB), at first, epoxy resin contained be immersed on the glass cloth, make it dry, make the backing material that is called mylar.Secondly, on the two sides of this backing material, stick Copper Foil, further dry film on stacked on the Copper Foil, and, with the dry film exposure and develop form the etching figure after, the etching Copper Foil is removed dry film at last and is formed double sided board.Double sided board of Xing Chenging and mylar interaction cascading make it integrated by heating and pressure like this.Then, machining hole on the position of expectation forms conductive membrane on the inner face in hole, guarantee the conducting of each interlayer.
On the MULTILAYER SUBSTRATE of making like this, have function in order to make it as electric circuit, various functional parts are installed.Usually, on the surface of multilayer circuit board, mounted on surface with headed by the chip functions parts of LCR of being used for processing signal etc., be used for encapsulating of signal operation logical device etc.And, in order to satisfy as commodity function electric, light device, several multilayer circuit boards need be coupled together as module, also will be used for electric signal, light signal or audio signal be transformed into it the necessary information of commodity function various functional modules and be connected as battery of power circuit etc.
Below, use an example of the electric light device of above-mentioned existing multilayer circuit board with reference to description of drawings.
Fig. 9 shows the profile of the structure example of the existing electric light device that uses multilayer circuit board and functional module.In the drawings, the 231st, multilayer board, the 232nd, flexual substrate, 233a is a Liquid Crystal Module, and 233b is the photographic camera module, and 233c is the input touch panel module, the 234th, the logical circuit that has encapsulated, the 235th, shaped like chips functional part, the 236th, the Copper Foil wiring in the multilayer circuit board, the 237th, the through hole part that the conducting resinl that connects with the interlayer of multilayer circuit is filled.
Below, the action of the electric light device of the multilayer circuit board that uses said structure is described.At first, the information of outside optics is taken into optics camera module 233b, is transformed into electric signal, and logical circuit 234 calculation process with being configured in the back side are transformed into view data.When people imported necessary information on touch pad 233c, this information was transformed into electric signal.Also have, this electric signal is by the processing such as chip circuit parts that are positioned at the back side.The information that is taken into like this is transformed into electric signal data, this signal data is transferred on other the multilayer circuit board by flexual substrate 232, there by the shaped like chips functional part 235 further conversion of the logical circuit 234 that has encapsulated and LCR etc.The manufactured data of conversion further are transferred on the Liquid Crystal Module 233a that shows usefulness by pliability substrate 232, are transformed into light signal, export as view data.
Be installed in function element on the two sides of the multilayer circuit board that possesses this function and parts by being configured in the layer or the various wirings of interlayer connect.Wiring (circuitous pattern) in the layer constitutes with Copper Foil wiring 236, also has, and the connection of interlayer thus, constitutes the circuit of solid by 236 electric being connected of connecting up of conducting resinl 237 in the through hole that is filled in the two sides that connects multilayer circuit board and the Copper Foil of each layer.
But, in such stereochemical structure, because installation function parts on the surface of each multilayer circuit board only, the length of arrangement wire that reaches intermodule between each parts can not shorten, further, also need to connect pliability substrate between each multilayer circuit board etc., loss when easily high-frequency signal transmission taking place and The noise.Also have, owing to be to wait with welding shaped like chips functional part and the device that encapsulated function are connected to structure on the multilayer circuit, it is difficult relying on the feature accuracy of each functions of components precision and installation accuracy raising circuit integral body.Consequently, can not adapt, still exist as the multifunction of equipment, the miniaturization and still problem of difficulty with more high frequencyization, high speed, the digitlization of operating frequency.
Next, Figure 13 shows the profile of the pliability rigidity wiring plate of suggestion always.On this pliability rigidity wiring plate 301, be hard rigid element that can not bending with the scope shown in the symbol 302, with the scope shown in the symbol 303 be can bending the pliability part.The covering that the conductor circuit 305 of the multiwiring board 304 in pliability part 303 is pasted by bonding agent is laid film 306 covering protections and.Also have, in rigid element 302, use with symbol 307 represent bonding with bonding pad or mylar, make multiwiring board 304 and the 308 bonding or lamination shapings of rigidity wiring plate, in the pliability part 303 that multiwiring board 304 exposes, bonding pad or mylar 307 and rigidity wiring plate 308 are removed.Further, a plurality of electronic units 309 are installed on the rigidity wiring plate 308 in rigid element 302, these electronic units 309 are by connecting through hole 310 electric being connected of multiwiring board 304 and rigidity wiring plate 308.
Like this, in existing pliability rigidity wiring plate 301,, the shape processing degree of freedom is limited, for example, can not carries with the casing coupling of making by curved surface because the circuit board section that is made of multiwiring board 304 does not have pliability.Also have, the thickness of multiwiring board 304 is limited, and in the shortening of stack direction length of arrangement wire boundary is arranged also, can not be adapted to high frequencyization from now on.Further, electric necessity that is connected with of circuit of lamination disposes through hole in stack direction (thickness direction) intricately in order to incite somebody to action, cause the degree of freedom of circuit design to descend, the miniaturization of circuit board is restricted, because complicated circuit form is difficult to reduce manufacturing cost.
On the other hand, under the situation of general laminated circuit board, each layer is fully bonding comprehensively each other, checks hardly in the way that the circuit board lamination goes down in manufacturing process, only depends on the inspection of finished product.In the circuit board of the structure that such each layer is adjacent to mutually, the heat dissipation difficulty that in circuit, takes place, there is the problem of heating in substrate self.Also have, laminated circuit board carries out inspections such as motion detection as its manufactured goods usually.This is that one deck or which floor do not have function because existing laminated circuit board has only competence exertion function after all layer laminate.In finishing not measurable present situation,, just produced the problem of rate of finished products reduction and cost depletions at laminated circuit board in lamination procedure owing to the defective products that takes place can not be separated.
Summary of the invention
The purpose of this invention is to provide the slim circuit board that to realize the electronic equipment miniaturization and.
In order to achieve the above object, the feature of slim circuit board of the present invention is to possess: flexual thin film-substrate; Be configured in the lip-deep wiring of described film-substrate; And be not installed in overlappingly between the lip-deep described wiring of described film-substrate with described wiring, the parts that are connected electric with described wiring.
The slim circuit board of other modes of the present invention possesses: possess wiring from the teeth outwards and the film-substrate of a plurality of laminations of the electric component that is electrically connected with this wiring, it is characterized in that: be arranged on one on the film-substrate wiring and be arranged on wiring on other film-substrate, by on the thickness direction on above-mentioned or other film-substrate, connecting the electric connection of electric connection part that this film-substrate is provided with at it.
The feature of the slim circuit board of other modes of the present invention (integrated circuit structure body) is: at the organic film with the circuit that has disposed at least a functional module, have the organic film of the functional circuit that film forms and have in the organic film of circuit of the function element that has disposed the naked core sheet, at least the organic film of lamination one kind, be configured in lamination a plurality of organic films on circuit electric or the continuing of optics.
The feature of the slim circuit board of other modes of the present invention is: with a plurality of circuit module multilayers ground lamination, each circuit module possesses: possess the parts and the flexual circuit board of having of the circuit that is connected these parts of taking on signal transmission or signal processing, and possess with the mutual circuit that couples together electric or optics of foregoing circuit board and also possess and flexual circuit board that described circuit board is integrally formed between connecting portion.
The slim circuit board of other modes of the present invention possesses the 1st circuit module and the 2nd circuit module; The the described the 1st and the 2nd circuit module is made of following method respectively: forming the 1st and the 2nd circuit board on the flexual substrate that is made of insulating material and linking connecting portion between the circuit board of these the 1st and the 2nd circuit boards, meanwhile, on the described the 1st and the 2nd circuit board, form a plurality of parts and the circuit that is connected these a plurality of parts that carry out signal transmission or signal processing, on connecting portion between described circuit board, form the interconnective circuit of circuit with the 1st circuit board and the 2nd circuit board, it is characterized in that: the described the 1st and the 2nd circuit module, be with the 1st and the 2nd circuit board overlay configuration of the 1st circuit module on the 1st and the 2nd circuit board of the 2nd circuit module.
The feature of slim method of manufacturing circuit board of the present invention is: possess the parts and the flexual circuit board of having of the circuit that is connected these parts of taking on signal transmission or signal processing, possess the mutual circuit that continues electric or optics of described circuit board, and possess and flexual circuit board that described circuit board is integrally formed between a plurality of circuit modules of connecting portion, in the manufacture process of lamination circuit that with a plurality of circuit module multilayers ground lamination is feature, till the lamination of finishing the expectation number of plies, each layer or every several layers of inspection operation of carrying out the confirming operation of signal circuit are set.
Description of drawings
Fig. 1 is the profile that the part of the single-layer type slim circuit board relevant with execution mode 1 is amplified.
Fig. 2 is the profile that the part of the lamination-type slim circuit board relevant with execution mode 2 is amplified.
Fig. 3 is the part amplification profile that the circuit board of the execution mode 3 that makes the slim circuit board distortion of lamination-type shown in Figure 2 is shown.
Fig. 4 is the profile that the part of the slim circuit board of lamination-type that possesses the execution mode 4 of piezoelectric element is amplified.
Fig. 5 is the stereogram of internal structure that the mobile telephone of inner mounting circuit boards is shown.
Fig. 6 is the schematic perspective view of the integrated circuit structure body of the slim circuit board relevant with execution mode 5.
Fig. 7 is the profile of the integrated circuit structure body of film like device shown in Figure 6.
Fig. 8 shows the aspect graph that utilizes of film like device shown in Figure 6.
Fig. 9 is the profile of structure example that possesses the electric light device of existing multilayer circuit board and functional module.
Figure 10 is the ideograph of the slim lamination circuit relevant with execution mode 6.
Figure 11 is the ideograph of the slim lamination circuit relevant with execution mode 7.
Figure 12 is the ideograph of the slim lamination circuit relevant with execution mode 8.
Figure 13 is the profile of existing pliability rigid substrate
Embodiment
Below, with reference to description of drawings a plurality of execution modes of the present invention.In addition, in order to simplify drawing, the same or similar parts of representing on a plurality of drawings are annotated with same symbol.
(execution mode 1)
Fig. 1 is the profile that the part of the inner flat slim circuit board of installing 101 on electronic equipments such as mobile telephone is amplified.As shown in the drawing, circuit board 101 possesses the substrate 102 that the film by the thin softness of easy bending constitutes.On side of film 102 or two sides' first type surface, form a plurality of thin wirings 103, between a plurality of wirings 103 (i.e. Bu Xian next door) install 103 nonoverlapping with wiring, than the 103 thinner slim parts 104 that connect up.
The thin-film material of substrate 102 is suitable for using polyethylene terephthalate (PET:polyethyleneterephthalate), polyimides (polyimide), polyhenylene sulfuration thing (PPS:polyphenylenesulfide).In order to give this resin film with preferably about 5～150 μ m of the thickness of sufficient bendability, film.Film not necessarily must be a resin, for example, also can be the metallic film that is made of aluminium foil.In general, using under the situation of aluminium foil, be preferably on its surface insulating barrier that is made of insulating material such as epoxy resin is set.But,, do not need insulating barrier forming under the situation of oxide-film on the surface of metallic film.
A plurality of slim parts 104 comprise electronic units such as capacitor, coil, resistance, transformer, and the thin film fabrication technology of using known semiconductor fabrication and using in semiconductor fabrication (for example: vapor growth method physics such as evaporation, sputter or chemistry) make on the surface of substrate 102.Perhaps, also can with in the slim component configuration that forms on other film in substrate 102, with welding with connect up 103 electric being connected.No matter be the sort of method, below the preferably about 1 μ m of the thickness of slim parts.
Like this, relevant with present embodiment circuit board 101 has the thin wiring 103 of high conductivity by setting in thin substrate 102 and the parts 104 also thinner than this thin wiring 103 constitute.Therefore, because circuit board 101 is very easy to bending, can follows the shape of casing easily and accommodate this circuit board 101.Therefore, circuit board 101 is compared with on-deformable existing circuit board and can be accommodated in the littler space.Consequently, can realize the miniaturization and of the equipment of inner mounting circuit boards 101.Also have, when will thick parts (for example: loud speaker 25 shown in Figure 5) be installed under the situation on the circuit board 101,, circuit board 101 can be housed in the littler space because the substrate on every side in the zone that these parts are installed partly is out of shape.
(execution mode 2)
Fig. 2 is the profile that the part of the slim circuit board relevant with execution mode 2 is amplified.As shown in the drawing, the lamination-type circuit board 101A relevant with present embodiment constitutes single-layer type circuit board 101 laminations of above-mentioned execution mode 1.Though be that 3 single-layer type circuit board 101 laminations form in the present embodiment,, the number of the single-layer type circuit board 101 of lamination is unqualified.The bonding agent that each single-layer type circuit board 101 and other single-layer type circuit board 101 usefulness that are connected with it are made of insulating material comprehensively or bonding the getting final product of part.When under the bonding situation, preferably not using suitable joint portion material (for example clip) that they are not linked up discretely a plurality of single-layer type circuit board 101.
Mounted component 104 on the single-layer type circuit board 101 and with other single-layer type circuit boards 101 of this circuit board 101 adjacency on mounted component 104 can be by 105 electric the coupling together of the electric connection part in the substrate 102 that is formed on any one parts 104.Electric connection part 105 is as shown in the figure preferably by being formed on the through hole 106 in the substrate 102 and constituting in the inner face wiring 107 that form or that be configured on the inner space of this through hole 106.Such electric connection part 105 can form by enough known semiconductor fabrications.
In the lamination-type circuit board 101A that constitutes like this, for example the electric signal of 104 outputs of the parts from the substrate 102 that is installed in the 1st layer (the superiors) sends on the 2nd layer parts 104 by the 1st layer the wiring 103 and the wiring 103 in electric connection part 105 and the 2nd layer (intermediate layer).Therefore, comparing with the circuit board that other electric connection part in the periphery by being configured in substrate 102 or the outside carries out the signal transmission can the shortest enough routing path transmission signals.Thus, do not have or seldom on the signal that is transmitted, increase interference such as noise.
Like this, because thin parts 104 are installed in thin substrate 102 in advance, the slim circuit board 101A relevant with present embodiment can be suppressed at Min. with other the part count that must be installed in the substrate 102.Thus, can be with circuit board 101A miniaturization.Consequently, circuit board 101A can be housed in the littler space.Also have, can realize that inside installed the miniaturization and of the equipment of circuit board 101A.
(execution mode 3)
Fig. 3 shows lamination-type circuit board 101B is housed in state diagram in the casing 110.As shown in the drawing, the circuit board of casing 110 accommodate face (above) on 111, form the variant part of the pit 112 of concavity or bend etc.Also have, on the part of the formation pit 112 of casing 110, form the hole 114 of one or more between 111 and following 113 above connecting.
In such structure, as shown in the figure, under situation about circuit board 101B being housed in the pit 112, tabular circuit board 101B is configured on the surface 111 of casing 110, makes its cover pit 112.Secondly, be connected hole 114 fluids on the suction device 115, make the inner space evacuation of pit 112.Consequently, the slim circuit board 101B of easy deformation is attracted distortion by the negative pressure in the pit 112, has given the three-dimensional shape of imitating the interior shape of pit 112 as shown in the figure like that.
When because under the irretentive situation of shape after the distortion of flexible circuit plate 101B of self, for example use suitable adhesive technology (for example: heat seal 116, bonding agent) with the periphery of circuit board 101B continuous be bonded on the casing 110 time, heating casing 110 makes it to be out of shape or fills suitable filler with hole 114 sealings, the permanent three-dimensional shape of keeping illustrated circuit board 101B.In addition, under the circuit board surface situation that holding components is smoothless that is connected when the surface with casing 110, heat seal is dispensable.But, when circuit board 101B by the situation of plastic deformation under, do not need the method for enforceable maintenance deformed shape.Also have, also can before being installed to casing, make circuit board 101B that plastic deformation takes place and give its three-dimensional shape corresponding, the circuit board 101B that has given three-dimensional shape is installed in the casing with pit.
Like this, utilize slim circuit board circuit board reasonably can be housed in to have concavity and partly wait in the casing of crushed element.Thus, when increasing casing and comprising the design freedom of equipment of this casing, manufacturing time and manufacturing cost that can suppression equipment.Can also improve the performance of equipment.
In addition, in the above description, though make circuit board distortion with vacuum method, also can be, circuit board 101B heating is made it distortion with pressure sintering.
(execution mode 4)
Fig. 4 illustrates the slim circuit board 101C relevant with execution mode 4.The feature of this circuit board 101C is: the piezoelectric element 117 of having assembled the bending that detects this circuit board, corresponding amount of bow output electric signal.
Piezoelectric element 117 is before forming wiring 103 on the surface of substrate 102 or after wiring, and the thin film fabrication technology of using known semiconductor fabrication and using in semiconductor is made (for example: vapor growth method physics such as evaporation, sputter or chemistry) form.Also have, will possess the single layer board lamination of necessary wiring 103, parts 104 and electric connection part 105,, obtain slim circuit board 101C if necessary with bonding between the same single layer board.
According to the circuit board 101C of such formation, when making substrate crooked by the energy that comes from the outside, piezoelectric element 117 distortion, its deflection is transformed into voltage, by wiring output.Also have, when the energy that comes from the outside disappeared, substrate also returned to original shape, and the output voltage of piezoelectric element 117 also returns to the value before the distortion.
Therefore, the sound equipment inverting element of this piezoelectric element as loud speaker, microphone can be used.Consequently, loud speaker, microphone can miniaturization.Also have, also piezoelectric element can be used as vibration generation part (that is: vibrator).For example, piezoelectric element is configured in the both sides of axle, feasible conducting/disconnections that is accompanied by voltage, the piezoelectric element contracts that set in advance are upheld rotation around axle, can be with the deflection amplification of circuit board.According to such structure, the voltage that takes out from piezoelectric element becomes big, has the advantage that the output error in deflection and the voltage relationship is diminished.
In addition, be the deflection that detects circuit board with piezoelectric element in the above description, for example also can use spring contact as the detection method of deflection.
(execution mode 5)
Execution mode 5 relates to the integrated circuit structure body of film like device, promptly, relate to slim circuit board, the feature of this integrated circuit structure body is: at organic film with the circuit that disposes a functional module at least, have the functional circuit that film forms organic film, have in the organic film of function element circuit of configuration naked core sheet, the organic film of at least a class of lamination, be configured in lamination a plurality of organic films on circuit electric or the coupling together of optics.
Concrete usefulness Fig. 6～Fig. 8 explanation.Fig. 6 represents the three-dimensional concept map of the integrated circuit structure body of used for mobile terminal film like device, and Fig. 7 is the profile of integrated circuit structure body, and what Fig. 8 showed integrated circuit structure specifically utilizes form.
In Fig. 6 and Fig. 7; the 201st, have the organic film of function module circuit; the 202nd, have the functional part of film formation and the organic film of naked core pellet parts; the 203rd, have the organic film of the functional circuit that function module circuit and film form; the 204th, transparent protective film; the 205th, adhering film; the 206th, protective film; from 207a to 207i slim various functional modules; from 208a to 208c the functional circuit parts that form with various films; the 209th, the function element of naked core sheet, the 210th, with the interlayer metal engaging portion of each film.
Functional module comprises: the light-emitting component 207f of button class 207e, the LED etc. of the display 207a of liquid crystal etc., recipient (loud speaker) 207b that uses piezoelectric, slim microphone 207c, CCD camera 207d, touch pad etc., the thin type antenna 207g that accepts electric wave, slim storage battery 207h, the vibrator 207i of the film like of vibration takes place.
In the three-dimensional concept map of Fig. 6, various functional modules 207 are configured on the organic film 201 and 203 of the following PET of thickness 100 μ m, polyimides etc.On organic film 201, disposed the module of audio visual interface function, bonding transparent protective film 204 on its surface with the people who operates machines.On organic film 201,, handle necessary information by the electric wiring between each functional module with the mutual conversion of electric signal, light signal and audio signal.
Disposed on organic film 203 that power supply on portable terminal is supplied with, the acceptance of electric wave signal, vibration take place, the functional module of the signal beyond people's the audio visual etc.Further, bonding protection film 206 below it.
For Signal Processing, processing and the control of carrying out these functional modules 207, as shown in Figure 7, metal bond 210 connection that the interlayer of each organic film is electric of the sticking patch of usefulness metal material etc.Part beyond the metal bond portion 210 for organic film is up and down engaged, is filled organic material by adhering film 205 when keeping insulation.
Each layer organic film 201,202 or 203 as required also can lamination many pieces.Under the sort of situation, between each layer, insert many pieces of adhering films 205.
In interlayer connected, when not being with electric signal but under the situation about connecting with light signal, use clear films that also can part, material be as adhering film 205, photo detectors such as the light-emitting component of the connection LED of optics etc. and photodiode.
The functional circuit of the functional part of the various signals of configuration calculation process, device etc. on organic film 202.In those functional circuits, comprise: the inductor 208c of the capacitor 208a of film like, the resistor 208b of film like, film like.The direct sputtering process of functional circuit 208 usefulness of this film like is formed on the organic film 202.Perhaps, the film like element that also can be configured in other organic film upper film formation cuts off the slim functional part that forms.
The functional circuit of these film like forms with the following thin-film technique film forming of thickness 10 μ m, graphical back.Need when in film forming under the situation of high-temperature technology, the material of organic film 202 also can use has stable on heating polyimides etc.Function element 209 is bare chips of Si, compound semiconductor.For example, comprise the IC, the LSI that carry out electric calculation process or as compound semiconductor device of GaAs of light circuit function etc. etc.These naked core sheet function element 209 use metal bond sticking patch etc. are installed in and are formed on the organic film 202 lip-deep cloth line terminals.These naked core sheet function elements also can be processed into chip thickness back below the 100 μ m as required to be installed.
Use above structure, the circuit structure body of the mobile terminal device that formation conduct as shown in Figure 7 is slim, compared with the existing, the thin thickness of structure integral body, realize the following thin type structure of 7mm, further realized the more lightweight of film substrate.
In addition, though with the portable terminal is the structure that example shows the integrated circuit of film like device, owing to thickness can be accomplished below the 7mm as structure, except that the portable phone of configuration example such as sheet, also can constitute the circuit that ID, electronic cards 243, portable information communication machine (PDA) 244, the long-distance operating device (remote control) 245 of sheet computer 241 shown in Fig. 8 (a)～(f), identification card 242 etc., the storage card 246 that is used in electric equipments such as washing machine 247 television sets 248 microwave ovens 249 etc. have commodity function.Also have, function as structure is not limited only to the mobile terminal of using, for example, also can be deployed into sheet PC, passport, the licence with home computer's function, thin slice ID with business card function, can the recording voice vision etc. the thin slice memory, fund card of data with credit card and visa card function, further, the structure with wide variety of functions such as laminar remote controls also can launch.
As mentioned above, organic film with the following thickness of 100 μ m is substrate, the organic film that will have the circuit of the functional module that has disposed the various signals of conversion, organic film with the film like functional circuit that forms with the following thickness of 10 μ m, and the lamination of organic film solid with circuit of the function element that has disposed the naked core sheet, with the interlayer metal connection of the circuit on those films or coupling together of optics, form a kind of structure, by possessing this structure is that the integrated circuit structure body of the film like device of feature constitutes each functional part, the length of arrangement wire of intermodule is owing to only be wiring the shortizationest of the solid of the interlayer wiring of the thick thin film of 100 μ m and the wiring on the film.Also have, the pliability substrate between each multilayer circuit board of necessary up to now connection also can be eliminated, and meanwhile, compares with the multilayer circuit board of existing glass epoxy resin etc., owing to be film substrate, lightweight also becomes possibility.Also have, the connection of interlayer and naked core pellet parts etc. are to the connection material of circuit, owing to can use the metal bond of sticking patch etc., compare with existing conductive paste, can reduce the signal degradation of high-frequency signal, the loss in the time of can the erasure signal transmission.Further, connect owing to also can be applicable to the interlayer of optics, as information data, the signal processing of high-speed high capacity also becomes possibility in the influence that reduces noise with the light signal of optical device etc.Further, be not to use the function element of shaped like chips functional part and encapsulation, but the function element of the functional circuit that forms with the film high accuracy below the 10 μ m and naked core sheet can be installed in the interlayer of structure, the precision that can avoid function precision and installation because of shaped like chips to cause is degenerated, and realizes that the precision of circuit integral body improves.
Therefore, more high frequencyization, high speed, the digitlization of operating frequency can be adapted to, multifunction, miniaturization and can be realized as electric light device.
As mentioned above, can connect with the shortest wiring that does not have loss between each functional module according to this integrated circuit structure body, can three-dimensional integrated high-precision functional part.Consequently, can adapt to high frequencyization, high speed, digitlization, high function, miniaturization and, realize various outstanding electric light devices.
(execution mode 6)
Figure 10 (a) is the ideograph of the structure of the expression slim lamination circuit (multilayer laminated circuit) relevant with embodiments of the present invention 6.As shown in the drawing, slim lamination circuit 311 is made of lamination a plurality of (2) circuit module 312 at least.Each circuit module 312 by represent with square on the drawing the 1st with the circuit board of the 2nd circuit board 313,314 and the band shape that is connected these the 1st, the 2nd circuit boards 313,314 between connecting portion 315 constitute.The substrate 316 that constitutes each circuit module 312 is by the profile processing according to connecting portion 315 between the 1st and the 2nd circuit board 313,314 and circuit board of the pliability insulated metal thin slice on one piece thin pliability resin sheet that constitutes with insulating material or the surface that overlayed on the film that is made of metal material with insulating material, the parts of configuration necessity on this substrate 316.For example, on the substrate part of forming circuit board 313,314, the parts of taking on signal transmission or signal processing of the electronic unit 317 of formation or installation resistance, electric capacity, coil, LSI chip etc. etc., these electronic units 317 are coupled together aptly by the electric wiring 318 of the lip-deep metal forming that is formed on circuit board 313,314.On the other hand, form electric wiring 319 on the substrate of connecting portion 315 between forming circuit plate part, electric wiring 319 will be arranged on electronic unit 317 and/or the person's electric wiring 318 on the 1st circuit board 313 and be arranged on electronic unit 317 on the 2nd circuit board 314 and/or person's electric wiring 318 is electric mutually or the coupling together of optics.Also have, as the back illustrates, when a plurality of circuit module of lamination 3 12, forming the electric wiring 318 of each circuit module 312 and electric wiring 318 electric connection parts that couple together electric or optics or the optics connecting portion or the through hole (all not illustrating in the drawings) of other circuit module 312 on the connecting portion 315 between the part of circuit board 313,314 and/or person's circuit board.
In the present embodiment, the substrate 316 of a plurality of circuit modules 312 forms same shape, when these a plurality of circuit modules 312 are overlapping, at connecting portion 315 between other the 1st circuit board 313 the 2nd circuit board 314 circuit boards of circuit module of position just on the connecting portion 315 between the 1st circuit board 313 the 2nd circuit board 314 circuit boards of each circuit module 312 or down or on the top and bottom.But, lift-launch the electronic unit 317 on the substrate 316 of each circuit module 312 and electric wiring 319,318 do not need with the substrate 316 of circuit module 312 that carries at other on electronic unit 317 etc. be same, usually, electronic unit, the electric wiring different with other circuit module 312 are set on each circuit module 312.
A plurality of circuit modules 312 of Xing Chenging are shown in Figure 10 (b) like this, the going up or connecting portion 315 lucky location overlaps between the 1st circuit board 313 the 2nd circuit board 314 circuit boards of other circuit module down or on the upper and lower surface of connecting portion 315 between the 1st circuit board 313 the 2nd circuit board 314 circuit boards of each circuit module 312 is from up and down to the incorporate slim lamination circuit 311 of the 315 pressurization compression formation of connecting portion between overlapping circuit board.If necessary, with bonding agent on the stack direction with the circuit board of adjacency and/or person's circuit board between at least a portion of connecting portion bonding.But, the area of adhesive applicating in circuit board 313,314 part (adhesive portion), the purpose of the heat that takes place from the electronic unit of effectively emitting on the circuit board is considered, wishes that this area is below 50% of area of its circuit board.The surface covered of bonding agent also has, owing at below 50% of area of circuit board, can access the pliability characteristic of good lamination circuit.
Also have, the electric wiring 318,319 of each circuit module 312 by being formed on circuit board 313,314 a part and/or person's circuit board between being electrically connected of electric connection part on the connecting portion 315 or through hole part.That is, the circuit board 313,314 of coincidence only connects at electric connection part, is in notconnect state in other parts.Therefore, the heat that on the circuit board 313,314 of the circuit module 312 between the circuit module 312 that is clamped in up and down, produces, the gap by disconnected position is discharged into the outside.
As mentioned above, incorporate slim lamination circuit 311 is overlapped a plurality of circuit modules 312 of connecting portion 315 connections between the flexual circuit board that forms by the sheet that will approach, and connecting portion 315 still has flexibility between the circuit board of this coincidence, can be easy to bending.Therefore, processing has the degree of freedom to shape, for example, can be easy to carry in the casing of being made by curved surface.
(execution mode 7)
Figure 11 (a) shows the ideograph of the slim lamination circuit 311A relevant with execution mode 2, different on the different this point in position, position among the slim lamination circuit 311A of present embodiment 2, the position of connecting portion 315 between the circuit board in each circuit module 312 (to the relative position of circuit board 313,314) and other circuit module 312 with the slim lamination circuit 311 of execution mode 1.Therefore, in the slim lamination circuit 311 of execution mode 2, shown in Figure 11 (b) (particularly such with regard to what understand) from the contrast of Figure 11 (b) and Figure 10 (b), between with a plurality of circuit module 312 lamination compressor circuit plates during connecting portion 315, though the width of the integral body of connecting portion 315 is compared with execution mode 1 and is become big between the circuit board when seeing slim lamination circuit 311 up and down, because the thickness of its thickness and one deck is almost equal, can improve the degree of freedom and reliability for bending.Also have, the substrate shape that the degree of freedom is higher be designed to possibility.In addition, under the situation of present embodiment, the electric connection of the necessity between a plurality of circuit modules, on the part of circuit board 313,314, be provided with interlayer connecting portion or splicing ear (electric connection part), a plurality of circuit modules be in the electric mutually connection of the electric connection part of relative position when overlapping or link up.In this case, the placement of adhesives of part between the circuit board of stack direction adjacency also can be at the bonding circuit board of its adhesive portion.
(execution mode 8)
Figure 12 shows the ideograph of the slim lamination circuit 311B relevant with execution mode 3.The slim lamination circuit 311 of present embodiment 3 has the feature of circuit board 313,314 laminated layer sequences owing to use a plurality of circuit modules 312 that use in execution mode 2.Specifically, when the circuit board 313 shown in the left side of seeing Figure 12, the circuit board 313a of the circuit module 312 of the 1st (the superiors) is configured in the superiors, configuration the 2nd below it (from the 2nd layer) circuit board 313b.In contrast, when the circuit board 314 shown in the right side of seeing Figure 12, the circuit board 314a of the 1st circuit module 312 be configured in the 2nd circuit board 314b under, about the laminated layer sequence difference of circuit board.In addition,, show the opposite example of laminated layer sequence of circuit board 313,314 for the ease of understanding circuit module with regard to layers 1 and 2, laminated layer sequence to about the circuit board can freely select.
As mentioned above,, can make to have bendability between circuit board on the connecting portion, also have, also can have pliability at the circuit board because connecting portion is integrally formed between circuit board and circuit board.Simultaneously, because the connecting portion between circuit board is integrally formed, there is no need on substrate, to be provided with the connector that connects usefulness etc., operations such as certain installation also can be cut down, the degree of freedom raising of design, the shortening of manufacturing time, the reduction of manufacturing cost, further, miniaturization etc. all become possibility.In circuit board, owing to up to now the care of the circuit that connects between substrate, through hole formation etc. can be cut down significantly, this also makes raising, the decline of cost, the miniaturization of design freedom become possibility.
Further, because the raising of the degree of freedom of substrate shape, size, also can expect to assemble the effect of degree of freedom expansion of the shape of products of this circuit module performance function.Also have,, also can access the effect that can adapt to high-frequency circuit because the slimming of circuit board also has the effect that shortens length of arrangement wire.
Also have, when at lamination substrate on apply under the situation of hot pressing etc., because can be to the processing one by one of each circuit board, the ability of forcing press if the area of a circuit board just can, the miniaturization of manufacturing installation becomes possibility, further, because this circuit board can reduce the number of interlayer through hole, the whole face that there is no need the circuit board all is adjacent to.Therefore, except the part of connection necessity of electric grade, there is no need bonding at interlayer.Thus, when simplifying bonding process, owing to be provided with the gap, also can access exothermal effect with regard to circuit board.
Further, in this circuit board, each layer is made of electronic unit, circuit, even owing to also be made of the board layer with function under the situation separately, can carry out action checking in the operation before lamination.Therefore, carry out action checking, have the effect that can be chosen in the defective products that takes place in the manufacturing process by time point in each layer or number layer laminate.Thus, compare, can improve rate of finished products, can cut down cost depletions with the manufacturing process that depends on finished product inspection up to now.
As understanding from the above description, according to lamination circuit of the present invention, design freedom raising, manufacturing time shortening, manufacturing cost reduction, miniaturization, adaptation high frequency etc. all become possibility.Also have,,, make the rate of finished products of raising lamination circuit and the low price of goods become possibility owing to can before lamination, confirm the electrical characteristic of each circuit module according to the manufacture method of lamination circuit related to the present invention.
Claims (8)
1. integrated circuit (IC) apparatus comprises:
The first flexible organic film, the described first flexible organic film has bare chip function element mounted thereto;
The second flexible organic film, the described second flexible organic film has at least one functional module mounted thereto;
The 3rd flexible organic film, the described the 3rd flexible organic film has functional circuit mounted thereto, described functional circuit is made by organic film and at least one slim functional part mounted thereto, and wherein first, second and the 3rd flexible organic film are with a stacked setting of mode that is stacked on another;
The first insulation adhering film, the described first insulation adhering film is arranged between the first and second flexible organic films, is used for carrying out bonding between the first and second flexible organic films and bare chip function element and the functional module on the second flexible organic film on the first flexible organic film being insulated;
The second insulation adhering film, the described second insulation adhering film is arranged between the second and the 3rd flexible organic film, is used for carrying out bonding between the second and the 3rd flexible organic film and functional module and the functional circuit on the 3rd flexible organic film on the second flexible organic film being insulated;
First connector is used to connect bare chip function element on the first flexible organic film and the functional module on the second flexible organic film; And
Second connector is used to connect functional module on the second flexible organic film and the functional circuit on the 3rd flexible organic film.
2. integrated circuit (IC) apparatus according to claim 1, wherein, described functional circuit has 10 microns or littler thickness.
3. integrated circuit (IC) apparatus according to claim 1, wherein, each in first, second and the 3rd flexible organic film has 100 microns or littler thickness.
4. integrated circuit (IC) apparatus according to claim 1, wherein, described slim functional circuit is capacitor, inductor or register.
5. equipment that comprises integrated circuit (IC) apparatus as claimed in claim 1, wherein, described equipment is a kind of in portable phone, personal digital assistant, computer, identity card, electronics leather wallet, remote controller and the memory card.
6. equipment that comprises integrated circuit (IC) apparatus as claimed in claim 2, wherein, described equipment is a kind of in portable phone, personal digital assistant, computer, identity card, electronics leather wallet, remote controller and the memory card.
7. equipment that comprises integrated circuit (IC) apparatus as claimed in claim 3, wherein, described equipment is a kind of in portable phone, personal digital assistant, computer, identity card, electronics leather wallet, remote controller and the memory card.
8. equipment that comprises integrated circuit (IC) apparatus as claimed in claim 4, wherein, described equipment is a kind of in portable phone, personal digital assistant, computer, identity card, electronics leather wallet, remote controller and the memory card.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001355415A JP4079626B2 (en) | 2001-11-21 | 2001-11-21 | Thin circuit board |
| JP2001-355415 | 2001-11-21 | ||
| JP2001355415 | 2001-11-21 | ||
| JP2002019947 | 2002-01-29 | ||
| JP2002-019947 | 2002-01-29 | ||
| JP2002019947A JP4434546B2 (en) | 2002-01-29 | 2002-01-29 | Integrated circuit structure of film-like device |
| JP2002086373 | 2002-03-26 | ||
| JP2002-086373 | 2002-03-26 | ||
| JP2002086373A JP4398626B2 (en) | 2002-03-26 | 2002-03-26 | Laminated circuit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021522642A Division CN1259809C (en) | 2001-11-21 | 2002-11-21 | Thin circuit board and method for mfg. same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1849036A CN1849036A (en) | 2006-10-18 |
| CN1849036B true CN1849036B (en) | 2010-07-21 |
Family
ID=19167120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100773202A Expired - Fee Related CN1849036B (en) | 2001-11-21 | 2002-11-21 | Thin circuit substrate and its manufacturing method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4079626B2 (en) |
| CN (1) | CN1849036B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4591168B2 (en) * | 2005-04-14 | 2010-12-01 | パナソニック株式会社 | Three-dimensional electronic circuit unit and manufacturing method thereof |
| KR101238373B1 (en) * | 2008-07-24 | 2013-02-28 | 삼성전자주식회사 | Apparatus for supplying high voltage power |
| JP5549972B2 (en) * | 2009-11-17 | 2014-07-16 | 住友電工プリントサーキット株式会社 | Flexible printed wiring board and electronic device |
| JP2011243796A (en) * | 2010-05-19 | 2011-12-01 | Denso Corp | Electronic equipment and attachment structure of electronic equipment |
| CN104582325B (en) * | 2013-10-12 | 2018-03-27 | 鹏鼎控股(深圳)股份有限公司 | Rigid-flex combined board and preparation method thereof, circuit board module |
| JP5800076B2 (en) * | 2014-09-25 | 2015-10-28 | 株式会社デンソー | Electronic device and electronic device mounting structure |
| JP6489713B2 (en) * | 2015-02-13 | 2019-03-27 | パイクリスタル株式会社 | Method for forming multilayer circuit board and multilayer circuit board formed thereby |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116772A (en) * | 1994-06-02 | 1996-02-14 | 国际商业机器公司 | Design of high density structures with laser etch stop |
| CN1246268A (en) * | 1997-02-03 | 2000-03-01 | 普林斯顿大学理事会 | Driving circuit for stacked organic light emitting devices |
-
2001
- 2001-11-21 JP JP2001355415A patent/JP4079626B2/en not_active Expired - Fee Related
-
2002
- 2002-11-21 CN CN2006100773202A patent/CN1849036B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116772A (en) * | 1994-06-02 | 1996-02-14 | 国际商业机器公司 | Design of high density structures with laser etch stop |
| CN1246268A (en) * | 1997-02-03 | 2000-03-01 | 普林斯顿大学理事会 | Driving circuit for stacked organic light emitting devices |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003158346A (en) | 2003-05-30 |
| CN1849036A (en) | 2006-10-18 |
| JP4079626B2 (en) | 2008-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1259809C (en) | Thin circuit board and method for mfg. same | |
| US5406027A (en) | Mounting structure and electronic device employing the same | |
| US7514636B2 (en) | Circuit component module, electronic circuit device, and method for manufacturing the circuit component module | |
| CN102498562A (en) | Flexible circuit module | |
| CN105404880A (en) | Electronic device with fingerprint sensor assembly | |
| JP2005311205A (en) | Semiconductor device | |
| CN109427731B (en) | Circuit board | |
| JP2004128418A (en) | Semiconductor device and manufacturing method thereof | |
| CN1849036B (en) | Thin circuit substrate and its manufacturing method | |
| JP2002510101A (en) | Chip card manufacturing method | |
| JP2022507119A (en) | Electronic module for chip card | |
| EP3933697B1 (en) | Biometric imaging module and method for manufacturing a biometric imaging module | |
| JP4276740B2 (en) | Multilayer wiring board | |
| KR20050064550A (en) | A single side flexible printed circuit board | |
| CN109409486B (en) | smart cards and processing method thereof | |
| JP2003283131A (en) | Laminated circuit and its manufacturing method | |
| JP4434546B2 (en) | Integrated circuit structure of film-like device | |
| CN112714915A (en) | Method for manufacturing a card module and module obtained | |
| CN218729104U (en) | Ultrasonic fingerprint identification device and electronic equipment | |
| US11439011B2 (en) | Electronic device module and method of manufacturing electronic device module | |
| CN115003019B (en) | Electronic equipment and circuit board | |
| JP6917832B2 (en) | card | |
| CN117641729A (en) | Circuit board with light sensing element and manufacturing method thereof | |
| JPH01171992A (en) | Printed circuit board for ic card | |
| CN115424305A (en) | Ultrasonic fingerprint identification device and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20181121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |