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Low-temperature co-fired ceramic material emitting white light and preparation method thereof

A technology of low-temperature co-fired ceramics and white light, which is applied in the field of white-light-emitting low-temperature co-fired ceramic materials and their preparation, to achieve high luminous intensity, low sintering temperature, and good uniformity

Inactive Publication Date: 2012-03-28
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, there are no reports of luminescent LTCC materials that can be used for commercial production and can produce white light emission under the excitation of ultraviolet light chips.

Method used

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  • Low-temperature co-fired ceramic material emitting white light and preparation method thereof
  • Low-temperature co-fired ceramic material emitting white light and preparation method thereof
  • Low-temperature co-fired ceramic material emitting white light and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 will account for the CaCO of mol percent 11% 3 , 9% by mole of Dy 3+ The corresponding amount of Dy 2 o 3 Soluble in HNO 3 make nitrate solution 3 Then add 25% B in mole percent 2 o 3 The corresponding amount of H 3 BO 3 The solution was mixed to prepare an inorganic solution, accounting for 55% Si(OC 2 h 5 ) 4 dissolved in anhydrous C 2 h 5 Prepare an organic solution in OH. Slowly pour the inorganic solution into the organic solution, wherein the volume ratio of the inorganic solution to the organic solution is 2:1. The mixed solution was stirred in a water bath at 80° C. for 1 hour to obtain a gel. The gel was heated in an oven at 80° C. for 8 hours to obtain a dry gel, and then placed in a high-temperature furnace for pre-calcination at 550° C. for 3 hours. Put the gel powder obtained after pre-burning into a ball mill jar, add absolute ethanol, ball mill for 4 hours and then dry. 10wt%-PVA solution was added to the obtained powder, and ...

Embodiment 2

[0031] Will be 20% by mole %CaCO 3 , Dy at 1% by mole 3+ The corresponding amount of Dy 2 o 3 Soluble in HNO 3 Prepare nitrate solution, and account for mole percentage 29%B 2 o 3 The corresponding amount of H 3 BO 3 The solution is mixed to prepare an inorganic solution, accounting for 50% Si(OC 2 h 5 ) 4 Soluble in anhydrous C 2 h 5 Prepare an organic solution in OH.

[0032] The inorganic solution was slowly poured into the organic solution, wherein the volume ratio of the inorganic solution to the organic solution was 2:1, and the mixed solution was stirred in a water bath at 80° C. for 2 hours to obtain a gel.

[0033] The gel was heated in an oven at 100°C for 6 hours to obtain a dry gel, and then placed in a high-temperature furnace for pre-calcination at 600°C for 2 hours.

[0034] The gel powder obtained after the pre-burning is completed is put into a ball mill jar, and absolute ethanol is added, ball milled for 2 hours and then dried.

[...

Embodiment 3

[0038] Will account for 15% by mole of CaCO 3 3% by mole Dy(NO 3 ) 3 Soluble in HNO 3 The prepared nitrate solution and accounted for 22% by mole of B 2 o 3 The corresponding amount of H 3 BO 3 The solution is mixed to prepare an inorganic solution, accounting for 60% Si(OC 2 h 5 ) 4 dissolved in anhydrous C 2 h 5 Prepare an organic solution in OH.

[0039] The inorganic solution was slowly poured into the organic solution, wherein the volume ratio of the inorganic solution to the organic solution was 2:1, and the mixed solution was stirred in a water bath at 100° C. for 1.5 hours to obtain a gel.

[0040] The gel was heated in an oven at 100° C. for 3 hours to obtain a dry gel, and then placed in a high-temperature furnace for pre-calcination at 500° C. for 4 hours.

[0041] The gel powder obtained after the pre-burning is completed is put into a ball mill jar, and absolute ethanol is added, ball milled for 6 hours and then dried.

[0042] 10w...

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Abstract

The invention provides a low-temperature co-fired ceramic material emitting white light and a preparation method thereof. The ceramic material comprises the following components in percentage by mol: 10 to 20 percent of CaO, 20 to 30 percent of B2O3, 50 to 60 percent of SiO2, and 1 to 9 percent of optical activating agent ions. The invention also relates to the preparation method of the material, namely, a sol-gel method for preparing the low-temperature co-fired ceramic material emitting white light. The invention has the advantages that: 1, the preparation process is simple and advanced, the sintering temperature is low by adopting the Sol-gel method and is between 800 DEG C and 900 DEG C, the sintering shrink rate at the temperature is controllable between 13 percent and 17 percent, and a glass ceramic material has a flat and smooth surface, as well as higher strength; 2, the dielectric constant is adjustable between 4(1MHz) and 6 (1MHz), and the coefficient of dielectric loss is lower than 0.002; 3, the light emission intensity is high, the material can emit yellow and blue light under activation of ultraviolet light with the wavelength of between 320nm and 410nm, the white light obtained by mixing the blue light and the yellow light can be used for illuminating and displaying; and 4, based on the advantages, the low-temperature co-fired ceramic material can be applied to the fields of white light LED (Light Emitting Diode) lamps, integrated ceramic substrates and other electronic devices and semiconductors, as well as microelectronic packaging materials.

Description

technical field [0001] The invention relates to a white light-emitting low-temperature co-fired ceramic material of a glass ceramic system and a preparation method thereof. Background technique [0002] With the rapid development of microelectronic information technology, electronic, microelectronic and optoelectronic components are increasingly developing towards high power, high density, high integration and high operating speed, which requires substrate materials to meet high propagation speed, high wiring density and high stability requirements. Low temperature co-fired ceramic (LTCC) technology adapts to this requirement with its excellent electrical characteristics and advanced manufacturing technology, and provides a better solution for the miniaturization and weight reduction of electronic components and modules. developed rapidly. [0003] To meet the requirements of electronic packaging, the LTCC substrate material must have a lower sintering temperature (<l00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/622
Inventor 刘世香李幸运周济车平李文军常志东孙长艳董彬
Owner UNIV OF SCI & TECH BEIJING
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