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Preparation method of 996 aluminum oxide ceramic substrate

A technology for alumina ceramics and substrates, applied in chemical instruments and methods, ceramic molding machines, clay preparation devices, etc., can solve the problems of high sintering temperature and poor quality stability

Active Publication Date: 2022-05-27
FUJIAN HUAQING ELECTRONICS MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, in view of the above content, the present invention provides a method for preparing a 996 alumina ceramic substrate, which solves the problems of poor quality stability and high sintering temperature of 99 porcelain products produced in the prior art

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  • Preparation method of 996 aluminum oxide ceramic substrate
  • Preparation method of 996 aluminum oxide ceramic substrate

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Experimental program
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Embodiment 1

[0033] A preparation method of a 996 alumina ceramic substrate, comprising the following steps:

[0034] (1) Preparation of sintering aids: copper nitrate, titanium glycerol, tetraethoxysilane, acrylic acid, polyaziridine cross-linking agent, sodium tripolyphosphate, and ethanol are added to the reactor containing water in proportion , stirred at 60 °C for 30 min, then added ammonium persulfate, stirred and reacted until a gel was formed, stood at room temperature for 20 h, then dehydrated and dried, ground to obtain powder, and then put the powder into a calcining furnace for calcination, and the calcination temperature was 620℃, get CuO-TiO 2 -SiO 2 Ternary sintering aid;

[0035] Based on 100% water mass, the addition amount of each raw material component is: copper nitrate 7%, titanium glycerol 16%, tetraethoxysilane 36%, acrylic acid 8%, polyaziridine crosslinking agent 1% , sodium tripolyphosphate 0.2%, ethanol 8%, ammonium persulfate 0.4%;

[0036] (2) Preparation o...

Embodiment 2

[0045] A preparation method of a 996 alumina ceramic substrate, comprising the following steps:

[0046] (1) Preparation of sintering aids: copper nitrate, titanium glycerol, tetraethoxysilane, acrylic acid, polyaziridine cross-linking agent, sodium tripolyphosphate, and ethanol are added to the reactor containing water in proportion , stirred at 65°C for 45min, then added potassium persulfate, stirred and reacted to form a gel, stood at room temperature for 25h, then dehydrated and dried, ground to obtain powder, and then put the powder into a calcining furnace for calcination, and the calcination temperature was 640℃, get CuO-TiO 2 -SiO 2 Ternary sintering aid;

[0047] Based on 100% water mass, the addition amount of each raw material component is: copper nitrate 8%, titanium glycerol 18%, tetraethoxysilane 40%, acrylic acid 10%, polyaziridine crosslinking agent 2% , sodium tripolyphosphate 0.3%, ethanol 12%, potassium persulfate 0.6%;

[0048] (2) Preparation of slurry...

Embodiment 3

[0056] A preparation method of a 996 alumina ceramic substrate, comprising the following steps:

[0057] (1) Preparation of sintering aids: copper nitrate, titanium glycerol, tetraethoxysilane, acrylic acid, polyaziridine cross-linking agent, sodium tripolyphosphate, and ethanol are added to the reactor containing water in proportion , stirred at 70°C for 60min, then added ammonium persulfate, stirred and reacted to form a gel, stood at room temperature for 30h, then dehydrated and dried, ground to obtain powder, and then put the powder into a calciner for calcination, and the calcination temperature was 660℃, get CuO-TiO 2 -SiO 2 Ternary sintering aid;

[0058]Based on 100% water mass, the addition amount of each raw material component is: copper nitrate 9%, titanium glycerol 20%, tetraethoxysilane 42%, acrylic acid 12%, polyaziridine crosslinking agent 3% , sodium tripolyphosphate 0.4%, ethanol 15%, ammonium persulfate 0.8%;

[0059] (2) Preparation of slurry: Alumina po...

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Abstract

The invention relates to the technical field of ceramic substrates, and provides a preparation method of a 996 aluminum oxide ceramic substrate, which comprises the following steps: (1) preparing a sintering aid; (2) preparing slurry; (3) tape casting and stamping; (4) discharging glue; and (5) sintering. The formula and the process of the aluminum oxide ceramic are optimized, the content of aluminum oxide is increased to 99.6%, and the sintering temperature is reduced while the electrical property and the mechanical property of the aluminum oxide ceramic are improved. The problems that 99 porcelain products produced in the prior art are poor in quality stability and the sintering porcelain forming temperature is too high are solved.

Description

technical field [0001] The invention relates to the technical field of ceramic substrates, in particular to a preparation method of a 996 alumina ceramic substrate. Background technique [0002] With the continuous development of packaging technology in the electronics industry, it has gradually moved towards the direction of high integration, complete functions, excellent performance and strong reliability. The substrate material mainly plays the roles of insulation, heat dissipation, protection and carrying chips and metal electronic circuits in the electronic packaging process. Compared with other electronic substrate materials, alumina ceramic materials have the characteristics of high hardness, good chemical corrosion resistance, high flexural strength, and good expansion coefficient matching. The widest range of ceramic substrate materials. Its application fields mainly include electronic and microelectronic products such as electronic ceramic components, chip resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/622C04B35/64B28B17/02B28C3/00
CPCC04B35/10C04B35/64C04B35/622B28B17/026B28C3/00C04B2235/5436
Inventor 杨大胜施纯锡
Owner FUJIAN HUAQING ELECTRONICS MATERIAL TECH
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