CN105813383B - A kind of carbon film wiring board of printing primary element - Google Patents
A kind of carbon film wiring board of printing primary element Download PDFInfo
- Publication number
- CN105813383B CN105813383B CN201610150981.7A CN201610150981A CN105813383B CN 105813383 B CN105813383 B CN 105813383B CN 201610150981 A CN201610150981 A CN 201610150981A CN 105813383 B CN105813383 B CN 105813383B
- Authority
- CN
- China
- Prior art keywords
- active component
- adjustment
- initial value
- resistance
- printing
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 104
- 238000007639 printing Methods 0.000 title claims abstract description 77
- 238000005530 etching Methods 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims description 34
- 239000004020 conductor Substances 0.000 claims description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 229910052709 silver Inorganic materials 0.000 claims description 12
- 239000004332 silver Substances 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 229920002521 macromolecule Polymers 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000007650 screen-printing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 238000012938 design process Methods 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/167—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed resistors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0005—Apparatus or processes for manufacturing printed circuits for designing circuits by computer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/17—Post-manufacturing processes
- H05K2203/171—Tuning, e.g. by trimming of printed components or high frequency circuits
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Abstract
The present invention relates to a kind of carbon film wiring boards of printing primary element, active component and the multinomial adjustment switch of etching are adjusted by printing, the actual resistance of resistance is adjusted in the primary element formed to printing, improves the accuracy of primary element electric parameter in carbon film wiring board.
Description
Technical field
The present invention relates to a kind of printed wiring board, especially a kind of carbon film wiring board of printing primary element.
Background technology
PCB (Printed Circuit Board), i.e. printed wiring board, are one of important components of electronics industry.Exhausted
It on edge base material, according to Software for Design, is molded by printing, printed wiring board provides the conductive pattern of electronics connection between electronic component
Shape.
In order to meet the demands such as the producer, consumer and growing work, study, the amusement of researcher, people
Work and live in various electronic equipments and electronic product after realizing digitlization step by step, lightness and small-sized
The process of change is also getting faster.Printed wiring board due to it is its it is small, light-weight, circuit design is ripe, it is big to be conducive to
The features such as scale is produced in batches, is increasingly becoming the most common connection carrier of electronic component in electronic equipment and electronic product, accounts for
There is increasingly consequence.Almost each electronic equipment and electronic product, it is small to arrive computer greatly to electronic watch, calculator,
Communication electronic device, military issue weapons system, as long as there is the electronic components such as integrated circuit, for the electric interconnection between them, all
To use printed wiring board.
With the high-precision tipping of electronic equipment and electronic product, the conventional fabrication processes of printed wiring board are also constantly changing
Into a kind of printed wiring board of the primary elements such as printed resistor is come into being.This printed wiring board has abandoned traditional printing line
What is used in the plate of road fills the primary elements such as mounted resistor disc, directly will contain resistor disc before carbon printing ink is printed on using mode of printing
Dress paste position, instead of filling mounted resistor disc, form the primary element with certain electrical characteristic, such as with certain resistance value
Fixed carbon resister.That is, on such carbon film wiring board, conductive pattern and primary element are all obtained by printing, and are omitted
The dress of the primary elements such as later stage resistor disc pastes process, process is greatly saved, improves production efficiency, reduce manually at
Except this, the cost due to filling mounted resistor disc itself also greatly reduces material cost also than containing carbon printing ink costliness.Meanwhile
Flexibility ratio of such carbon film wiring board in Software for Design also has certain promotion.
However, in the prior art, using such technique when printing primary element on carbon film wiring board, not ensuring that
The accuracy of the electric parameter of primary element.For example, when printing fixed carbon resister, the deviation of resistance value is merely capable of control positive and negative
Within 20%.Although this relatively low accuracy can meet the needs of certain application scenarios, sophisticated design is much being pursued
Can not but play a role with the field of control, can only be continuing with it is traditional fill mounted resistor disc, this be clearly production firm not
It wishes to.Therefore, there is an urgent need for one kind can be by detecting, adjusting, to ensure the high-precision of primary element electrical characteristic parameter
The carbon film wiring board of true property.
Invention content
To solve above-mentioned problems of the prior art, the present invention provides a kind of carbon film circuits of printing primary element
Plate.The present invention prints the electricity of primary element by way of being printed according to preset pattern containing carbon printing ink with proper resistor rate
Resistance forms carbon film wiring board, adjusts active component by printing and the multinomial adjustment of etching switchs, and is formed to printing substantially first
The actual resistance of resistance is adjusted in part, improves the accuracy of primary element electric parameter in carbon film wiring board.
The present invention provides a kind of carbon film wiring board of printing primary element, which is characterized in that the printing on circuit base plate
There is the carbon film primary element of printing in region, the active component in the carbon film primary element include initial value active component, 8
Active component and multinomial adjustment construction of switch are adjusted, the resistance value of initial value active component is designed as active component calibration design value
80%, each resistance value for adjusting active component is designed to the 5% of active component calibration design value, wherein the active component
Printing zone be divided into length L, the rectangle initial value region of width m and area be initial value region 20% widened rectangle adjust area
Domain；In initial value region, there is the initial value active component that the own font to be formed is printed according to the design resistance value of initial value active component,
The initial value active component of the own font with fixed carbon resister trace made of being printed containing carbon printing ink by being constituted, initial value resistance section
The fixed carbon resister trace divided is printed as the width edge circumvolution n times in initial value region, the fixed carbon resister trace of initial value active component
Total length is (n*L+m)；The local width for printing the fixed carbon resister trace formed is w, and the thickness of carbon film is h；Initial value resistance section
Resistance value R=ρ * (n*L+m)/(w*h) divided, wherein ρ are resistivity, are determined containing carbon printing ink for printing by deployed；It is adjusting
In the domain of main plot, there is the design resistance value according to adjustment active component to print the adjustment active component for 8 linear types to be formed, each
The adjustment active component of the linear type with linear fixed carbon resister trace made of being printed containing carbon printing ink by being constituted, each
The length for adjusting active component is l；The local width for printing the fixed carbon resister trace formed is w, and the thickness of carbon film is h；Each
Adjust the resistance value r=ρ * l/ (w*h) of active component；Also there is the conductor trace figure that printing is formed, institute in the printing zone
It states conductor trace figure and the first end point of the initial value active component is connected to the first circuit access point, pass through first circuit
Access point is connect with the printed circuit other parts of carbon film wiring board；The conductor trace figure also concatenates 8 in adjustment region
Second endpoint of a adjustment active component and the initial value active component in initial value region；And the multinomial adjustment switch etching
In adjustment region, connecing between each adjustment active component of conductor trace figure constitution of formation and multinomial adjustment switch is printed
Connector between head and the second endpoint and multinomial adjustment switch of initial value active component；The multinomial adjustment switch selects 1 to open for 9
It closes, for according to the test result that is completed for printing the actual resistance between rear initial value active component first end point and the second endpoint,
Switch selection is carried out to the adjustment active component of practical access printed circuit other parts；Selection criteria is resistance section after selection
Error between the whole resistance value divided and calibration design value is within 5%；Multinomial adjustment switch is included in circuit base plate insulating layer
On 9 grooves opening up, there is 9 grooves public starting point, the starting point to be connected to the second electricity by penetrating the punching of insulating layer
Road access point is connect by the second circuit access point with the printed circuit other parts of carbon film wiring board；9 grooves are respective
Terminal is respectively communicated to connect described in any one adjustment active component and initial value active component by penetrating the punching of insulating layer
Head；The multinomial adjustment switch forms perforation circuit by selecting one from 9 grooves and low resistance silver paste being perfused, by this
Perforation circuit realizes leading for the second circuit access point and one of connector for adjusting active component or initial value active component
Electrical connection forms series circuit with initial value active component to adjust 0 to 8 in active component, forms final resistance
Part；Complete 0 to 8 adjustment that the actual resistance of active component after selecting switchs selection for initial value active component and multinomial adjustment
The sum of active component, 9 different selections for selecting 1 switch according to 9, the actual resistance of active component is (8r+R), (7r+R), (6r+
R), one of (5r+R), (4r+R), (3r+R), (2r+R), (r+R) or R.
Further, the carbon film wiring board of above-mentioned printing primary element, which is characterized in that low resistance silver paste is by 60%-
72% flake silver powder, the macromolecule resin carrier of 24%-38% and 2%-4% additives composition.
The present invention also provides a kind of methods of the carbon film wiring board of the above-mentioned printing primary element of manufacture, which is characterized in that
Include the following steps：S1, Software for Design were designed using the whole figure and layout of PCB design Software for Design carbon film wiring board
Cheng Zhong is labeled the high resistance region of resistance value precise requirements, for tab area, expands it and accounts for plate suqare, than not
Additionally expand 20% when being labeled；S2, allotment contain carbon printing ink, and high resistance is mixed with low resistance containing carbon printing ink containing carbon printing ink and is adjusted
Match, weight ratio 85%：15%；S3, printing fixed carbon resister are made using screen printing technique on the insulating layer of circuit base plate
Print initial value active component and 8 adjustment active components with containing carbon printing ink, printing initial value active component, 8 adjustment active components,
Conductor trace figure between multinomial adjustment switch；Make the conductor trace figure by the first end point of the initial value active component
It is connected to the first circuit access point, is connect with the printed circuit other parts of carbon film wiring board by first circuit access point；
The conductor trace figure is set to concatenate the second endpoint of 8 adjustment active components and initial value active component；And make conducting wire mark
Line graph constitutes the second endpoint of connector and initial value active component between each adjustment active component and multinomial adjustment switch
Connector between being switched with multinomial adjustment；Etching forms 9 grooves of multinomial adjustment switch on the insulating layer；The groove is set to have
There is public starting point, in the starting point penetrate the drilling operation of insulating layer, so that punching is connected to second circuit access point, pass through
The second circuit access point is connect with the printed circuit other parts of carbon film wiring board；In the respective terminal of groove penetrate absolutely
The drilling operation of edge layer makes punching be connected to the connector of any one adjustment active component and initial value active component；S4 is surveyed
Examination and adjustment, test the resistance value between initial value active component first end point and the second endpoint, according to test result, to practical access print
The adjustment active component of brush circuit other parts carries out switch selection, and selection criteria is the whole resistance value of active component after selection
Error between calibration design value is within 5%；With this standard, one in 9 grooves of multinomial adjustment switch is selected,
Low resistance silver paste is wherein perfused, forms perforation circuit, the second circuit access point and wherein one is realized by the perforation circuit
The connector of a adjustment active component or initial value active component is conductively connected；By 0 to 8 adjusted in active component and initial value electricity
Resistance part is grouped as series circuit, forms final active component；The carbon film wiring board of printed resistor is obtained after adjustment.
Further, the method for the carbon film wiring board of above-mentioned manufacture printing primary element, which is characterized in that low resistance silver paste
It is made of the flake silver powder of 60%-72%, the macromolecule resin carrier of 24%-38% and 2%-4% additives.
The carbon film wiring board design of the present invention is compact-sized rationally, forms primary element in a manner of printing and simplifies production work
Sequence reduces the failure rate in generating process and products application, improves the essence of primary element electric parameter in carbon film wiring board
True property.
Description of the drawings
Fig. 1 is the flow chart of the carbon film wiring board of manufacture printed resistor of the present invention.
Fig. 2 is the schematic diagram of the carbon film wiring board of printed resistor.
Fig. 3 is the schematic diagram of multinomial adjustment switch.
Fig. 4 is any one vertical view in 9 grooves of multinomial adjustment switch.
Specific implementation mode
Below in conjunction with Figure of description, the present invention will be further described.In the following embodiments, with most commonly seen base
Explanation is made that for this component resistance.Since other primary elements can also adjust electricity by adjusting resistance therein
Gas characterisitic parameter, it will be appreciated by those skilled in the art that other primary elements can also use similar scheme to obtain high precision
The electrical characteristic parameter of property.
Fig. 1 is the flow chart of the carbon film wiring board of manufacture printed resistor of the present invention, is included the following steps：
S1, Software for Design.Using the whole figure and layout of PCB design Software for Design carbon film wiring board, in design process,
The high resistance region of resistance value precise requirements is labeled, for tab area, expands it and accounts for plate suqare, than not into rower
Additionally expand 20% when note.Since resistance accounts for, plate suqare is originally very small, and for respective resistances, expansion 20% accounts for plate suqare to line
The global design of road plate does not influence substantially.
S2, allotment contain carbon printing ink.High resistance is mixed with low resistance containing carbon printing ink containing carbon printing ink and is allocated, weight ratio
85%：15%, the requirement of fixed carbon resister resistance value positive and negative 20% after printing molding can be met.
S3 prints fixed carbon resister.Using screen printing technique, printed using containing carbon printing ink on the insulating layer of circuit base plate
Initial value active component and 8 adjustment active components, printing initial value active component, 8 adjustment active components, multinomial adjustment switch it
Between conductor trace figure.Make the conductor trace figure that the first end point b of the initial value active component is connected to the first electricity
Road access point is connect by first circuit access point with the printed circuit other parts of carbon film wiring board；Make the conducting wire mark
Line graph concatenates the second endpoint a of 8 adjustment active components and initial value active component；And keep conductor trace figure constitution each
Second endpoint a of connector and initial value active component between a adjustment active component and multinomial adjustment switch is opened with multinomial adjustment
Connector between pass.
Etching forms 9 grooves of multinomial adjustment switch on the insulating layer.Make the groove that there is public starting point c,
The starting point penetrate the drilling operation of insulating layer, and punching is made to be connected to second circuit access point, is accessed by the second circuit
Point is connect with the printed circuit other parts of carbon film wiring board.Penetrate the drilling behaviour of insulating layer in the respective terminal of groove
Make, punching is made to be connected to the connector of any one adjustment active component and initial value active component.
S4, test and adjustment.The resistance value between initial value active component first end point b and the second endpoint a is tested, is tied according to test
Fruit carries out switch selection to the adjustment active component of practical access printed circuit other parts, and selection criteria is resistance after selection
Error between partial whole resistance value and calibration design value is within 5%.With this standard, 9 of multinomial adjustment switch are selected
One in groove, low resistance silver paste is perfused wherein, forms perforation circuit, the second circuit is realized by the perforation circuit
Access point is conductively connected with the connector of one of adjustment active component or initial value active component.It will be in adjustment active component
0 to 8 forms series circuit with initial value active component, forms final active component.This method of adjustment takes full advantage of string
Connecting resistance resistance value adds up to the circuit theory of all-in resistance, and circuit design is simple, and it is small to account for plate suqare, and regulated efficiency is high.Adjustment finishes
The carbon film wiring board of printed resistor is obtained afterwards.
Fig. 2 is the schematic diagram of the carbon film wiring board of printed resistor.Active component includes initial value active component R, 8 adjustment electricity
Resistance part divides r1-r8 and multinomial adjustment switch S structures, the resistance value of initial value active component R to be designed as active component calibration design value
80%, each resistance value for adjusting active component r1-r8 is designed to the 5% of active component calibration design value.As shown in Fig. 2,
The printing zone of active component is to be divided into length L, the rectangle initial value region A of width m and expansion that area is initial value region 20%
Rectangle adjustment region B.In the A of initial value region, has and print the own font to be formed according to the design resistance value of initial value active component R
Initial value active component R, to make full use of space, reduction accounts for plate suqare.
The initial value active component R of the own font with fixed carbon resister trace made of being printed containing carbon printing ink by being constituted.
The fixed carbon resister trace of initial value active component R is printed as the width edge circumvolution 3 times in initial value region A, resistance total length in Fig. 2
For (3L+m).As it can be seen that when circumvolution n times, the fixed carbon resister trace total length of initial value active component R is (n*L+m).Initial value resistance section
Divide R that can also be printed as the length sides circumvolution n times in initial value region A, resistance total length is (L+n*m), but due in length sides
When circumvolution, the circumvolution number of the resistance of same length does not use usually more than the circumvolution number in width edge circumvolution.
The local width for printing the fixed carbon resister trace formed is w, and the thickness of carbon film is h；The resistance value R of initial value active component
=ρ * (n*L+m)/(w*h), wherein ρ are resistivity, are determined containing carbon printing ink for printing by deployed.
L in adjustment region B there is the design resistance value according to adjustment active component to print the tune for 8 linear types to be formed
Whole active component r1-r8.The adjustment active component r1-r8 of each linear type is by contain straight line made of carbon printing ink printing
What shape fixed carbon resister trace was constituted, each length for adjusting active component is l, prints itself width of the fixed carbon resister trace of formation
Degree is w, and the thickness of carbon film is h, then each adjusts the resistance value r=ρ * l/ (w*h) of active component；
Also there is the conductor trace figure that printing is formed, conductor trace figure is by initial value active component R's in printing zone
First end point b is connected to the first circuit access point, and the printed circuit by first circuit access point and carbon film wiring board is other
Part connects.Conductor trace figure also concatenates in 8 adjustment active component r1-r8 and initial value region A in adjustment region B
The second endpoint a of initial value active component R.
Multinomial adjustment switch S is etched in B in adjustment region, prints each adjustment resistance of conductor trace figure constitution of formation
The the second endpoint a and multinomial adjustment switch S of connector and initial value active component R between part r1-r8 and multinomial adjustment switch S
Between connector.Adjustment resistance r1-r8 and multinomial adjustment switch S is simply illustrated in Fig. 2.
Fig. 3 is the schematic diagram of multinomial adjustment switch.As shown in figure 3, multinomial adjustment switch S selects 1 switch for 9, it to be used for basis
To being completed for printing the test result of the actual resistance between rear initial value active component R first end points b and the second endpoint a, to actually connecing
The adjustment active component r1-r8 for entering printed circuit other parts carries out switch selection.Selection criteria is active component after selection
Error between whole resistance value and calibration design value is within 5%.Multinomial adjustment switch S includes being opened on circuit base plate insulating layer
If 9 grooves, 9 grooves have a public starting point c, which is connected to second circuit by penetrating the punching of insulating layer and connects
Access point is connect by the second circuit access point with the printed circuit other parts of carbon film wiring board.9 respective terminals of groove
Punching by penetrating insulating layer is respectively communicated to described in any one adjustment active component r1-r8 and initial value active component R
Connector.Multinomial adjustment switch S forms perforation circuit by selecting one from 9 grooves and low resistance silver paste being perfused, by this
It penetrates through circuit and realizes second circuit access point and the connector of the one of adjustment active components of r1-r8 or initial value active component R
It is conductively connected, to which 0 to 8 in active component r1-r8 and initial value active component R composition series circuits will be adjusted, is formed most
Whole active component.
The actual resistance of active component after selecting is completed as the r1-r8 of initial value active component R and multinomial adjustment switch selection S
In 0 to 8 adjustment the sum of active component, 9 different selections for selecting 1 switch according to 9, the actual resistance of active component is (8r+
R), one of (7r+R), (6r+R), (5r+R), (4r+R), (3r+R), (2r+R), (r+R) or R.It is simply illustrated in Fig. 3
Do not illustrate groove in initial value resistance R and multinomial adjustment switch S, multinomial adjustment switch S.
Fig. 4 illustrates any one vertical view in 9 grooves in multinomial adjustment switch S.As shown in figure 4, c points are 9
The public starting point of groove, d points are one in 9 terminals.If c, the groove of d point-to-point transmissions is selected, it is perfused wherein low
Resistance value silver paste, to make two dot circuit access of c, d.Flake silver powder, 24%-38% of the low resistance silver paste by 60%-72%
Macromolecule resin carrier and 2%-4% additives composition.
The carbon film wiring board of printed resistor according to the present invention can get the higher fixed carbon resister of resistance value accuracy.
For example, the resistance value of design fixed carbon resister is 100 ohm, then the design value of initial value resistance R is 80 ohm, 8 adjustment resistance r1-r8
Design value be 5 ohm.Due to initial value resistance R there may be positive and negative 20% error (adjustment resistance due to resistance value it is relatively small,
Error is negligible when calculating), therefore its actual resistance may be 64-96 ohm.Test its resistance value be 96 ohm when, due to error
Within 5%, it can not be adjusted by 8 adjustment resistance r1-r8.And test its resistance value be 64 ohm when, due to accidentally
It is poor very big, it is adjusted by 8 adjustment resistance r1-r8, the resistance value of final fixed carbon resister can be made to reach 104 ohm, accidentally
Difference is within 5%.When actual resistance for initial value resistance R is the numerical value between remaining 64-96 ohm, using similar adjustment
Scheme.When practical operation, there is also errors when due to 8 adjustment resistance r1-r8 of printing, can be switched by multinomial adjustment
S is repeatedly adjusted and is tested, and the high result of accuracy is finally obtained.
Above example is merely to illustrate the present invention, and not limitation of the present invention, the common skill in relation to technical field
Art personnel can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all etc.
Same technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (2)
1. a kind of carbon film wiring board of printing primary element, which is characterized in that have print in the printing zone on circuit base plate
The carbon film primary element of system, the active component in the carbon film primary element include initial value active component, 8 adjustment active components
And multinomial adjustment construction of switch, the resistance value of initial value active component are designed as the 80% of active component calibration design value, each tune
The resistance value of whole active component is designed to the 5% of active component calibration design value, wherein
It is initial value region 20% that the printing zone of the active component, which is divided into length L, the rectangle initial value region of width m and area,
Widened rectangle adjustment region；
In initial value region, there is the initial value resistance section that the own font to be formed is printed according to the design resistance value of initial value active component
Point, the initial value active component of the own font with fixed carbon resister trace made of being printed containing carbon printing ink by being constituted, initial value electricity
The fixed carbon resister trace of resistance part point is printed as the width edge circumvolution n times in initial value region, the fixed carbon resister of initial value active component
Trace total length is (n*L+m)；The local width for printing the fixed carbon resister trace formed is w, and the thickness of carbon film is h；Initial value electricity
Resistance value R=ρ * (n*L+m)/(w*h) of resistance part point, wherein ρ are resistivity, are determined containing carbon printing ink for printing by deployed；
In adjustment region, there is the design resistance value according to adjustment active component to print the adjustment resistance for 8 linear types to be formed
The adjustment active component of part, each linear type is by contain linear fixed carbon resister trace structure made of carbon printing ink printing
At, each length for adjusting active component is l；The local width for printing the fixed carbon resister trace formed is w, the thickness of carbon film
For h；The resistance value r=ρ * l/ (w*h) of each adjustment active component；
Also there is the conductor trace figure that printing is formed, the conductor trace figure is by the initial value resistance in the printing zone
Partial first end point is connected to the first circuit access point, passes through the printed circuit of first circuit access point and carbon film wiring board
Other parts connect；The conductor trace figure also concatenates in 8 adjustment active components and initial value region in adjustment region
Initial value active component the second endpoint；And
The multinomial adjustment switch is etched in adjustment region, prints each adjustment resistance section of conductor trace figure constitution of formation
Divide the connector between the second endpoint of the connector between multinomial adjustment switch and initial value active component and multinomial adjustment switch；
The multinomial adjustment switch selects 1 switch for 9, for according to being completed for printing rear initial value active component first end point and second
The test result of actual resistance between endpoint carries out switch choosing to the adjustment active component of practical access printed circuit other parts
It selects；Selection criteria is that the error after selection between the whole resistance value of active component and calibration design value is within 5%；Multinomial tune
Whole switch includes 9 grooves opened up on circuit base plate insulating layer, and 9 grooves have public starting point, and the starting point is by wearing
The punching of saturating insulating layer is connected to second circuit access point, passes through the printed circuit of the second circuit access point and carbon film wiring board
Other parts connect；9 respective terminals of groove are respectively communicated to any one adjustment resistance section by penetrating the punching of insulating layer
Point and initial value active component the connector；The multinomial adjustment switch from 9 grooves by selecting one and being perfused low
Resistance value silver paste forms perforation circuit, and the second circuit access point and one of adjustment resistance section are realized by the perforation circuit
Point or the connector of initial value active component be conductively connected, to adjust 0 to 8 in active component and the grouping of initial value resistance section
At series circuit, final active component is formed；
Complete 0 to 8 adjustment that the actual resistance of active component after selecting switchs selection for initial value active component and multinomial adjustment
The sum of active component, 9 different selections for selecting 1 switch according to 9, the actual resistance of active component is (8r+R), (7r+R), (6r+
R), one of (5r+R), (4r+R), (3r+R), (2r+R), (r+R) or R；Wherein, low resistance silver paste is by 60%-72%'s
Flake silver powder, the macromolecule resin carrier of 24%-38% and 2%-4% additives composition.
2. a kind of method of the carbon film wiring board of manufacture printing primary element as described in claim 1, which is characterized in that including
Following steps：
S1, Software for Design, using the whole figure and layout of PCB design Software for Design carbon film wiring board, in design process, for
The high resistance region of resistance value precise requirements is labeled, and for tab area, is expanded it and is accounted for plate suqare, when than not being labeled
It is additional to expand 20%；
S2, allotment contain carbon printing ink, and high resistance is mixed with low resistance containing carbon printing ink containing carbon printing ink and is allocated, weight ratio 85%：
15%；
S3 prints fixed carbon resister, and using screen printing technique, initial value is printed using containing carbon printing ink on the insulating layer of circuit base plate
Active component and 8 adjustment active components, between printing initial value active component, 8 adjustment active components, multinomial adjustment switch
Conductor trace figure；Make the conductor trace figure that the first end point of the initial value active component is connected to the access of the first circuit
Point is connect by first circuit access point with the printed circuit other parts of carbon film wiring board；Make the conductor trace figure
Second endpoint of 8 adjustment active components of concatenation and initial value active component；And make each adjustment of conductor trace figure constitution
Between the second endpoint and multinomial adjustment switch of connector and initial value active component between active component and multinomial adjustment switch
Connector；
Etching forms 9 grooves of multinomial adjustment switch on the insulating layer；Make the groove that there is public starting point, in the starting point
The drilling operation for penetrate insulating layer, makes punching be connected to second circuit access point, passes through the second circuit access point and carbon
The printed circuit other parts of film wiring board connect；Penetrate the drilling operation of insulating layer in the respective terminal of groove, makes to beat
Hole is connected to the connector of any one adjustment active component and initial value active component；
The resistance value between initial value active component first end point and the second endpoint is tested in S4, test and adjustment, right according to test result
The adjustment active component of practical access printed circuit other parts carries out switch selection, and selection criteria is active component after selection
Whole resistance value and calibration design value between error within 5%；With this standard, 9 grooves of multinomial adjustment switch are selected
In one, low resistance silver paste is perfused wherein, forms perforation circuit, passes through the perforation circuit and realizes second circuit access
Point is conductively connected with the connector of one of adjustment active component or initial value active component；0 to 8 in active component will be adjusted
It is a to form series circuit with initial value active component, form final active component；The carbon film of printed resistor is obtained after adjustment
Wiring board；Wherein, low resistance silver paste is by the flake silver powder of 60%-72%, the macromolecule resin carrier of 24%-38% and 2%-
4% additive forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150981.7A CN105813383B (en) | 2016-03-16 | 2016-03-16 | A kind of carbon film wiring board of printing primary element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150981.7A CN105813383B (en) | 2016-03-16 | 2016-03-16 | A kind of carbon film wiring board of printing primary element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105813383A CN105813383A (en) | 2016-07-27 |
| CN105813383B true CN105813383B (en) | 2018-10-26 |
Family
ID=56453179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610150981.7A Active CN105813383B (en) | 2016-03-16 | 2016-03-16 | A kind of carbon film wiring board of printing primary element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105813383B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113286444A (en) * | 2021-05-20 | 2021-08-20 | 浪潮电子信息产业股份有限公司 | PCB impedance control method, device, equipment and readable storage medium |
| CN114245601A (en) * | 2021-12-01 | 2022-03-25 | 惠州市金百泽电路科技有限公司 | High-precision carbon oil resistance value manufacturing method of circuit board |
| CN114388168B (en) * | 2022-01-27 | 2022-12-02 | 深圳恒宝士线路板有限公司 | High-resistance carbon oil structure for replacing silver paste |
| CN117693088A (en) * | 2023-12-29 | 2024-03-12 | 中山市成源光电科技有限公司 | Method for dimming and toning COB light source |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5291179A (en) * | 1991-05-23 | 1994-03-01 | West Electric Company, Ltd. | Printed circuit board |
| CN1416310A (en) * | 2001-10-30 | 2003-05-07 | 李俊豪 | Method for quick resistance trimming by using laser on printed circuit board directly |
| CN101291564A (en) * | 2008-06-13 | 2008-10-22 | 广东风华高新科技股份有限公司 | Manufacturing process of resistor plate, obtained resistor plate and application thereof |
-
2016
- 2016-03-16 CN CN201610150981.7A patent/CN105813383B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5291179A (en) * | 1991-05-23 | 1994-03-01 | West Electric Company, Ltd. | Printed circuit board |
| CN1416310A (en) * | 2001-10-30 | 2003-05-07 | 李俊豪 | Method for quick resistance trimming by using laser on printed circuit board directly |
| CN101291564A (en) * | 2008-06-13 | 2008-10-22 | 广东风华高新科技股份有限公司 | Manufacturing process of resistor plate, obtained resistor plate and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105813383A (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105813383B (en) | A kind of carbon film wiring board of printing primary element | |
| KR20130102475A (en) | Method and program for creating equivalent circuit | |
| CN102573309A (en) | Method for improving graphic precision of substractive process printed circuit board (PCB) by adopting dynamic etching compensation method | |
| CN104317998B (en) | A kind of method and apparatus of the manufacture compensation of the parameter of Gerber files | |
| US6100787A (en) | Multilayer ceramic package with low-variance embedded resistors | |
| CN104349609A (en) | Printed circuit board and manufacturing method thereof | |
| CN101247699B (en) | Circuit boards and adjustable resistors embeddesd in circuit board and its manufacture method | |
| CN105765679B (en) | Multilayer ceramic capacitor including at least one slit | |
| CN108076586A (en) | Circuit board and method for manufacturing the same | |
| US4361634A (en) | Artwork master for production of multilayer circuit board | |
| CN104619114A (en) | PCB (printed circuit board) with embedded resistors and embedded resistor test method | |
| CN204408747U (en) | A kind of have the pcb board burying resistance | |
| US2847648A (en) | Printed delay line | |
| CN110650583B (en) | Communication circuit layer structure and circuit printing method thereof | |
| US3353136A (en) | Printed resistors | |
| JP3792613B2 (en) | High frequency characteristic evaluation substrate and measurement method | |
| US6801439B2 (en) | Multiple network electronic component | |
| CN104636526B (en) | The mismatch model method of silicon hole | |
| US20050062587A1 (en) | Method and structure of a substrate with built-in via hole resistors | |
| CN204560028U (en) | There is the printed circuit board of embedding resistance | |
| CN109819582A (en) | Circuit board, electric quantity monitoring circuit, circuit board manufacturing method and electronic equipment | |
| DE2338647A1 (en) | Printed circuit board with through-plating - provides high quality general purpose circuit mounting facility | |
| US20240289528A1 (en) | Method and system for automatically checking circuit layout of printed circuit board | |
| JP2000295036A (en) | Manufacture of voltage-controlled oscillator, and aggregate substrate for voltage-controlled oscillator | |
| JP2006293569A (en) | Method for calculating high frequency circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 310006 No. 99 Shuangma Road, Jinbei Street, Linan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Baolin Printed Circuits Co.,Ltd. Address before: 311300 No. 38 Weixi South Road, Jincheng Street, Linan City, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Baolin Printed Circuits Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A carbon film circuit board for printing basic components Effective date of registration: 20220720 Granted publication date: 20181026 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou Baolin Printed Circuits Co.,Ltd. Registration number: Y2022330001471 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230621 Granted publication date: 20181026 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou Baolin Printed Circuits Co.,Ltd. Registration number: Y2022330001471 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A carbon film circuit board for printing basic components Effective date of registration: 20230703 Granted publication date: 20181026 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou Baolin Printed Circuits Co.,Ltd. Registration number: Y2023330001343 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20181026 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou Baolin Printed Circuits Co.,Ltd. Registration number: Y2023330001343 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A carbon film circuit board for printing basic components Granted publication date: 20181026 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou Baolin Printed Circuits Co.,Ltd. Registration number: Y2024330001200 |