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Manufacturing method of strip type macromolecular ESD protective device

A polymer-based, manufacturing method technology, applied in metal core circuit manufacturing, electrical components, circuit substrate materials, etc., can solve problems such as loss, data distortion, and large insertion loss

Active Publication Date: 2006-07-19
上海维安电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some existing overvoltage protection components can also protect against electrostatic discharge (ESD) hazards, the inherent capacitance of these devices is on the order of tens of picofarads or higher. When using these devices to protect the ports of high-speed data transmission equipment, due to Excessive inherent capacitance produces large insertion loss, which causes problems such as data distortion or loss during high-speed data transmission

Method used

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  • Manufacturing method of strip type macromolecular ESD protective device
  • Manufacturing method of strip type macromolecular ESD protective device
  • Manufacturing method of strip type macromolecular ESD protective device

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Embodiment Construction

[0018] Such as image 3 As shown in the flow chart of the manufacturing process of the chip-type polymer-based ESD device, the manufacturing method of the present invention includes the following steps in sequence: preparing pre-designed graphics on the copper layer of the PCB board, and proportioning the raw materials for preparing the core material in proportion, Pulping, printing core material slurry, curing core material, printing encapsulation layer, curing encapsulation layer, upper electrode, scribing, appearance inspection, test classification, tape weaving. In the present invention, the preparation of core material slurry is the core part of the whole process, and the core material is a composite material system of polymer matrix, conductor particles, semiconductor particles and insulating particles. According to the formula in the table, take Dow Corning's silicone resin components A and B, weigh them in a mass ratio of 1:1, and stir them with a high-speed stirrer un...

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Abstract

The invention relates to a method for producing the new paster macromolecule base ESD protective device, which comprises: preparing preset pattern on the copper layer of PCB board; proportioning the raw materials for preparing the core material; preparing slurry and printing the core material; solidifying the core material; printing the packing layer; solidifying the packing layer and the upper electrode; incising; detecting the appearance; and classifying. Wherein, the prepared core material is compound material comprising macromolecule adhesive, conductive particles, insulated particles, and semi-conductive particles, while said macromolecule adhesive is one or the mixture of organic silicon resin, epoxide resin and rubber; said conductive particle is one or mixture of nickel powder, nickel carbonoxide and aluminum powder; said semi-conductive particle is one or mixture of zinc oxide, barium titanate and silicon carbide; and said insulated particle is one or mixture of silicon dioxide, alumina and magnesia.

Description

technical field [0001] The invention relates to a manufacturing method of an overvoltage protection element, in particular to a manufacturing method of a patch-type polymer-based ESD protection device technical background [0002] Modern electrical equipment is developing in the direction of miniaturization and integration, and the functions of the equipment are becoming more and more powerful. This trend makes such devices extremely sensitive to overvoltage, especially the damage caused by electrostatic discharge (ESD) to equipment is becoming more and more serious. [0003] With the development of communication technology, the data transmission rate of modern communication equipment is getting faster and faster, and the I / O ports of these equipment are often harmed by electrostatic discharge. This requires an electrostatic suppressor that can guide the strong electrostatic pulse generated by electrostatic discharge into the ground, so as to effectively protect the working...

Claims

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Application Information

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IPC IPC(8): H05K3/44H05K1/03H05F3/02
Inventor 胡晓文连铁军侯李明程真王军黄琼
Owner 上海维安电子股份有限公司