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Dielectric composition and multilayered electronic component comprising the same

A technology of dielectric composition and electronic components, which is applied in the direction of fixed capacitance components, electrical components, laminated capacitors, etc., can solve the problems of reduced reliability, reduced insulation resistance breakdown voltage characteristics, etc., and achieve high miniaturization Effect

Active Publication Date: 2020-12-29
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, as the thickness of the dielectric layer decreases, reliability may decrease, and characteristics such as insulation resistance, breakdown voltage, etc. may decrease

Method used

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  • Dielectric composition and multilayered electronic component comprising the same
  • Dielectric composition and multilayered electronic component comprising the same
  • Dielectric composition and multilayered electronic component comprising the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] First, in order to confirm the effect of the sum of Dy and Nb contents on reliability, Test No. 1 to Test No. 3 were prepared so that based on 100 moles of the main component (BaTiO 3 ), the sum of the Dy and Nb contents in the dielectric composition was 1.5 moles (Test No. 1), 1.8 moles (Test No. 2) and 2.1 moles (Test No. 3).

[0132] A highly accelerated life test (Halt) was performed on Test No. 1 to Test No. 3, which are prototype MLCC samples thus completed.

[0133] Figure 4A to Figure 4C Graphs of the highly accelerated life test (Halt) of Test No. 1 to Test No. 3 are shown. A highly accelerated life test was performed by measuring the change in insulation resistance by applying 1.5 times the reference voltage at 125°C for 12 hours.

[0134] Figure 4A The case of Test No. 1 in which the sum of the contents of Dy and Nb is 1.5 mol based on 100 mol of the main component is shown. exist Figure 4A Among them, since there was no defect in the highly accelerat...

Embodiment 2

[0141] In order to confirm electrical characteristics according to changes in the Mg content, Test No. 4 to Test No. 6 were prepared by the above-described manufacturing process so that Dy, Nb, and Mg had the contents shown in Table 1 below based on 100 mol of the main components.

[0142] The capacity, dissipation factor (DF) and breakdown voltage (BDV) of Test No. 4 to Test No. 6 were measured. Test No. 4 to Test No. 6 were samples of the prototype MLCC thus completed, and the capacity, dissipation factor (DF ) and breakdown voltage (BDV) are shown in Table 1 below.

[0143] Figure 5A to Figure 5C is the I-V curve of test number 4 to test number 6, Figure 5A is the I-V curve of test number 4, Figure 5B is the I-V curve of test number 5, Figure 5C It is the I-V curve of test number 6.

[0144] [Table 1]

[0145] Test No. Dy (mole) Nb (mole) Mg (mole) Capacity (μF) DF(%) BDV(V) 4 0.9 0.05 0.467 4.91 3.3 78 5 0.9 0.05 0.7 5.25 3...

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Abstract

The present disclosure provides a dielectric composition and a multilayer electronic component including the same. The dielectric composition comprises a main component having a perovskite structure represented by ABO_3 (A is at least one of Ba, Sr, and Ca, and B is at least one of Ti, Zr, and Hf) and a first sub-component, wherein the first sub-component comprises 0.1 mole or more of rare earth elements, 0.02 mole or more of Nb, and 0.25 to 0.9 mole of Mg with respect to 100 moles of the main component, and the content sum of the rare earth elements and the Nb is 1.5 mol or less.

Description

[0001] This application claims the benefit of priority from Korean Patent Application No. 10-2019-0077574 filed with the Korean Intellectual Property Office on June 28, 2019, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The present disclosure relates to a dielectric composition and a multilayer electronic assembly including the dielectric composition. Background technique [0003] Multilayer ceramic capacitors (MLCCs, a type of multilayer electronic component) are chip capacitors that are mounted on devices including image display devices such as liquid crystal displays (LCDs) and plasma display panels (PDPs), computers, smartphones, , mobile phones, etc. on printed circuit boards of various types of electronic products, and used for charging or discharging. [0004] Multilayer ceramic capacitors may be used as components of various electronic devices due to their advantages such as miniaturization, high capacity, and ...

Claims

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Application Information

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IPC IPC(8): H01G4/12H01G4/232H01G4/248H01G4/30
CPCH01G4/12H01G4/1209H01G4/232H01G4/248H01G4/30C04B35/4682C04B2235/3206C04B2235/3224C04B2235/3251H01G4/012H01G4/1227H01G4/1254C04B2235/3213C04B2235/3215C04B2235/3208C04B2235/3262C04B2235/3239C04B2235/3272C04B2235/3279C04B2235/3275C04B2235/3281C04B2235/3284C04B2235/3418C04B2235/3217C04B2235/36C04B2235/85C04B2235/781C04B2235/6582C04B2235/658C04B2235/663H01B3/10H01G4/1218H01G4/302C04B2235/785C04B2235/3236C04B2235/768
Inventor 咸泰瑛赵志弘白承仁权亨纯
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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