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Preparation method of solderable silver-coated nickel conductive layer and automatic screen printing silver-coated device

A conductive layer, silver-nickel technology, applied in screen printing, screen printing machine, printing and other directions, to achieve the effect of simple and convenient operation, low cost, good consistency and stability

Active Publication Date: 2020-12-04
深圳原驰三维技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above technical problems, the present invention discloses a preparation method of a solderable silver-coated nickel conductive layer and an automatic silk screen silver-coated device, which are simple and convenient to operate, and solve the soldering problem of nickel paste well without increasing the three wastes Emissions, green and environmental protection, suitable for industrial production

Method used

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  • Preparation method of solderable silver-coated nickel conductive layer and automatic screen printing silver-coated device
  • Preparation method of solderable silver-coated nickel conductive layer and automatic screen printing silver-coated device
  • Preparation method of solderable silver-coated nickel conductive layer and automatic screen printing silver-coated device

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preparation example Construction

[0034] A preparation method of a solderable silver-coated nickel conductive layer, specifically comprising the following steps:

[0035] (1) Nano-Ni-B powder is used, mixed with glass powder, ethyl cellulose, and terpineol in proportion, and rolled with a three-roll mill to prepare the corresponding nickel paste.

[0036] (2) Mix silver particles of 20-50nm with glass powder, ethylene glycol, and ethyl cellulose in proportion, and ultrasonically treat them in an ultrasonic tank for 30-80 minutes to prepare nano-silver paste.

[0037] (3) Using automatic screen printing silver coating equipment, the nickel paste prepared above is first screen printed on the processed alumina ceramic substrate through an automatic screen printing machine, and then the screen printed alumina ceramic substrate is transferred to the automatic On the working table of the drip silver paste machine, drip low-viscosity nano-silver paste on the surface of the nickel paste to be welded.

[0038] (4) Sen...

Embodiment 1

[0045] 1. Mix nano-Ni-B powder with glass powder, ethyl cellulose, and terpineol in proportion, and roll it with a three-roll mill to prepare the corresponding nickel paste.

[0046] 2. Mix silver particles with an average particle size of 25nm with glass powder, ethylene glycol, and ethyl cellulose in proportion, and ultrasonically treat them in an ultrasonic tank for 70 minutes to obtain a glass phase with a silver content of 10%. Nano-silver paste with a content of 0.8% and a viscosity of 16mPa·s.

[0047] 3. Using automatic screen printing silver coating equipment, the nickel paste prepared above is first screen printed on the processed alumina ceramic substrate through the automatic screen printing machine, and then the screen printed alumina ceramic substrate is transferred to the automatic drop by the robot. On the workbench of the silver paste machine, drop 0.3g of nano-silver paste on the surface of the nickel paste to be welded.

[0048] 4. Send the ceramic sheets d...

Embodiment 2

[0053] 1. Mix Ni-B powder with glass powder, ethyl cellulose, and terpineol in proportion, and roll it with a three-roll mill to prepare the corresponding nickel paste.

[0054] 2. Mix silver particles with an average particle size of 47nm with glass powder, ethylene glycol, and ethyl cellulose in proportion, and ultrasonically treat them in an ultrasonic tank for 35 minutes to obtain a glass phase with a silver content of 12%. Nano-silver paste with a content of 1.2% and a viscosity of 24mPa·s.

[0055] 3. Using automatic screen printing silver coating equipment, the nickel paste prepared above is first screen printed on the processed alumina ceramic substrate through the automatic screen printing machine, and then the screen printed alumina ceramic substrate is transferred to the automatic drop by the robot. On the workbench of the silver paste machine, drop 0.8g of nano-silver paste on the surface of the nickel paste to be welded.

[0056] 4. Send the ceramic sheets drippe...

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Abstract

The invention provides a preparation method of a solderable silver-coated nickel conductive layer and an automatic screen printing silver-coated device, wherein the preparation method is: dripping nano-silver paste on the printed nickel conductive pattern, and then drying and co-sintering to obtain a solderable silver-coated nickel conductive layer; wherein, the nano-silver paste has a silver content of 5-15%, a glass phase content of 0.5-1.5%, and a viscosity of 5-30mPa·s. By adopting the technical solution of the present invention, no special flux and solder materials are needed, and only one co-sintering method is required to obtain a nickel conductive layer with better soldering effect and solder bonding force, and the operation is simple and convenient , the consistency and stability of the production products are good, the discharge of three wastes is not increased, the product is green and environmentally friendly, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a preparation method of a solderable silver-coated nickel conductive layer and an automatic screen printing silver-coated device. Background technique [0002] With the rapid development of global informatization, the world's demand for information is growing rapidly. Information products and information services are indispensable for various countries, regions, enterprises, units, families and individuals; information technology has become an important part of supporting today's economic activities and social life. Cornerstone. The development and growth of the electronic information industry is inseparable from the renewal and performance improvement of various electronic information materials. Conductive paste is an important part of electronic information materials. It is a new electronic functional material integrating materials, metallurgy, chemical industry, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/04B22F1/00B41F15/12
CPCB22F7/04B41F15/12B22F2007/047B41P2215/50B22F1/102
Inventor 李永东万军喜戴金洲罗丹妮
Owner 深圳原驰三维技术有限公司
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