CN202841692U

CN202841692U - Carbon film board

Info

Publication number: CN202841692U
Application number: CN 201220547041
Authority: CN
Inventors: 沈金林; 胡锋
Original assignee: XUYI KAIYI ELECTRONIC MATERIAL CO Ltd
Current assignee: XUYI KAIYI ELECTRONIC MATERIAL CO Ltd
Priority date: 2012-10-24
Filing date: 2012-10-24
Publication date: 2013-03-27
Anticipated expiration: 2022-10-24

Abstract

The utility model discloses a carbon film board which comprises a substrate layer and a carbon film layer. The carbon film layer internally comprises two conducting circuits and carbon bridges. When the two conducting circuits are intersected mutually, one conducting circuit is disconnected at the intersection to form an open circuit while the other conducting circuit penetrates through from the disconnected position to form a continuous circuit; and the carbon bridges are arranged above the continuous circuit, and two ends of each carbon bridge are connected with two disconnected ends of the open circuit respectively to enable the open circuit to be connected. An insulating ink layer for insulating is further arranged between each carbon bridge and the continuous circuit, and two ends of each carbon bridge are in surface contact with the two disconnected ends of the open circuit. The carbon film board achieves intersection of the conducting circuits by the aid of the carbon bridges and achieves insulation between the conducting circuits by means of insulation ink, thereby being high in integration level, small in space occupation and high in operational stability.

Description

Carbon film plate

Technical field

The utility model designs a kind of circuit board, relates in particular to a kind of carbon film plate.

Background technology

In the method that printed circuit board is made circuit, prevailing have two kinds of subtractive process and addition processes.Addition process is all used without electrolysis or electro-coppering and is come generative circuit, the method of utilizing conductive ink is a kind of of addition process, makes wire with conductive ink, is printed on the insulator to generate, than being easier to, effectively make the printed circuit of various shapes in this way.The production technology of carbon-film PCB is to have made up the printed board manufacture method of subtractive process and addition process.Carbon-film PCB, along with the develop rapidly of electronics industry, common electric, measurement instrument industry trend multifunction and microminiaturized and progressively be used.As: television set, telephone set, electronic organ, game machine, video tape recorder etc.Its new technology, new function are continually developed and are used, and the electronic applications of computor-keyboard, card form computing machine, miniature radio-cassette player, electronic measuring device and SMT also begins to select, and its body reputation is improved, and demand enlarges.Carbon-film PCB, adopt simple wire mark technique, be added with one deck or two layers of conductive pattern at single-sided printed board, and realize highdensity wiring, the conductive pattern of printing is except making interconnecting lead, also as resistance, key switch contact and electro-magnetic screen layer etc., adapted to the development trend of miniaturization, lightweight and the multifunction of electronic product.But because the day by day complicated and integrated level of conducting wire increases, the cross-cutting issue of each conducting wire becomes increasingly conspicuous.The employing wire jumper that has solves, but needs extra wire like this, has not only increased the space, and line is many easily disorderly, and stability is bad, also not attractive in appearance.

The utility model content

Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provides a kind of integrated level high, and it is little to take up room, good stability carbon film plate.

For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of carbon film plate, comprise substrate layer and carbon film layer, it is characterized in that: comprise conducting wire and carbon bridge in the described carbon film layer, when two conducting wires intersected mutually, wherein a conducting wire disconnected at infall, formed open-circuit line, another conducting wire is passed from gap, forms continuous circuit; Described carbon bridge is arranged on continuous circuit top, and the two ends of carbon bridge are connected with two open ends of open-circuit line respectively, so that open-circuit line is connected; Also be provided with the dielectric ink layer that plays insulating effect between described carbon bridge and the continuous circuit.

As the further improved technical scheme of the utility model, the two ends of described carbon bridge be that face contacts with two open ends of open-circuit line.

The utility model adopts the carbon bridge to solve the cross-cutting issue of conducting wire, adopts the insulation between the dielectric ink realization conducting wire.Therefore the utility model integrated level is high, and it is little to take up room, the good stability of operation.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the sectional structure schematic diagram at the A-A place of Fig. 1.

Below in conjunction with accompanying drawing embodiment of the present utility model is described further.

Embodiment

Embodiment 1

Referring to Fig. 1 and Fig. 2, this carbon film plate, comprise substrate layer 1 and carbon film layer, comprise conducting wire and carbon bridge 2 in the described carbon film layer, when two conducting wires intersected mutually, wherein a conducting wire disconnected at infall, formed open-circuit line 3, another conducting wire is passed from gap, forms continuous circuit 4; Described carbon bridge 2 is arranged on continuous circuit 4 tops, and the two ends of carbon bridge 2 are connected with two open ends of open-circuit line 3 respectively, so that open-circuit line 3 is connected; Also be provided with the dielectric ink layer 5 that plays insulating effect between described carbon bridge 2 and the continuous circuit 4.The two ends of described carbon bridge 2 be that face contacts with two open ends of open-circuit line 3.

Claims

1. carbon film plate, comprise substrate layer (1) and carbon film layer, it is characterized in that: comprise conducting wire and carbon bridge (2) in the described carbon film layer, when two conducting wires intersect mutually, wherein a conducting wire disconnects at infall, form open-circuit line (3), another conducting wire is passed from gap, forms continuous circuit (4); Described carbon bridge (2) is arranged on continuous circuit (4)---top, and the two ends of carbon bridge (2) are connected with two open ends of open-circuit line (3) respectively, so that open-circuit line (3) is connected; Also be provided with the dielectric ink layer (5) that plays insulating effect between described carbon bridge (2) and the continuous circuit (4).

2. carbon film plate according to claim 1 is characterized in that: the two ends of described carbon bridge (2) be that face contacts with two open ends of open-circuit line (3).