KR20030007081A - 발진기 및 그 제조 방법 - Google Patents
발진기 및 그 제조 방법 Download PDFInfo
- Publication number
- KR20030007081A KR20030007081A KR1020020039689A KR20020039689A KR20030007081A KR 20030007081 A KR20030007081 A KR 20030007081A KR 1020020039689 A KR1020020039689 A KR 1020020039689A KR 20020039689 A KR20020039689 A KR 20020039689A KR 20030007081 A KR20030007081 A KR 20030007081A
- Authority
- KR
- South Korea
- Prior art keywords
- temperature range
- oscillator
- temperature
- vibrator
- capacity
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 31
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 17
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims description 39
- 239000000203 mixture Substances 0.000 claims description 29
- 230000007423 decrease Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 abstract description 21
- 239000003990 capacitor Substances 0.000 abstract description 8
- 230000003247 decreasing effect Effects 0.000 abstract description 5
- 229910000909 Lead-bismuth eutectic Inorganic materials 0.000 description 4
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- 150000001622 bismuth compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910000464 lead oxide Inorganic materials 0.000 description 2
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- 241000876446 Lanthanotidae Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
Claims (4)
- 비스무스(bismuth) 층상 화합물을 그 주성분으로 하는 압전체로 구성된 진동자를 사용한 피드백(feedback) 회로와 증폭기들을 갖는 발진기에 있어서, 상기 발진기는상기 진동자와 함께 상기 피드백 회로를 구성하는 부하 용량들을 포함하고, 상기 부하 용량들 각각은, 그 주성분으로, -20℃에서 80℃까지의 온도 범위의 1/2 이상의 영역에서의 온도가 증가함에 따라 비유전율이 감소하고, ε-TC가 5000ppm/℃ 이상인 유전체를 가지며, 이때 상기 ε-TC는 -20℃에서 80℃까지의 온도 범위에서의 상기 비유전율의 평균 변화율이며, (Cmax - Cmin)/(C20·100)으로 표현되고, 여기서 Cmax는 -20℃에서 80℃까지의 온도 범위에서의 용량의 최대치이고, Cmin은 -20℃에서 80℃까지의 온도 범위에서의 용량의 최소치이고, 그리고 C20은 20℃에서의 상기 용량인 것을 특징으로 하는 발진기.
- 제 1 항에 있어서, 상기 부하 용량들 각각은, 페로브스카이트(Perovskite)형 결정 구조의 세라믹 조성물을 그 주성분으로 하는 유전체 세라믹 조성물을 포함하는 것을 특징으로 하는 발진기.
- 제 1 항 또는 제 2 항에 있어서, 상기 부하 용량들 각각은 (Ba1-xSrx)TiO3, 이때, x=0.4 내지 0.7인 조성식으로 표현되는 세라믹 조성물을 그 주성분으로 하는 유전체 세라믹 조성물을 포함하는 것을 특징으로 하는 발진기.
- 비스무스(bismuth) 층상 화합물을 그 주성분으로 하는 압전체로 구성된 진동자를 사용한 피드백(feedback) 회로 및 증폭기들을 갖는 발진기의 제조 방법에 있어서, 상기 방법은상기 진동자와 함께 상기 피드백 회로를 구성하는 부하 용량들을 사용하는 단계를 포함하고, 상기 부하 용량들 각각은, 그 주성분으로, -20℃에서 80℃까지의 온도 범위의 1/2 이상의 영역에서의 온도가 증가함에 따라 비유전율이 감소하고, ε-TC가 5000ppm/℃ 이상인 유전체를 가지며, 이때 상기 ε-TC는 -20℃에서 80℃까지의 온도 범위에서의 상기 비유전율의 평균 변화율이며, (Cmax - Cmin)/(C20·100)으로 표현되고, 여기서 Cmax는 -20℃에서 80℃까지의 온도 범위에서의 용량의 최대치이고, Cmin은 -20℃에서 80℃까지의 온도 범위에서의 용량의 최소치이고, 그리고 C20은 20℃에서의 상기 용량인 것을 특징으로 하는 발진기의 제조 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001209270A JP2003023321A (ja) | 2001-07-10 | 2001-07-10 | 発振器およびその製造方法 |
JPJP-P-2001-00209270 | 2001-07-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030007081A true KR20030007081A (ko) | 2003-01-23 |
KR100475996B1 KR100475996B1 (ko) | 2005-03-10 |
Family
ID=19044947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0039689A KR100475996B1 (ko) | 2001-07-10 | 2002-07-09 | 발진기 및 그 제조 방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6690246B2 (ko) |
JP (1) | JP2003023321A (ko) |
KR (1) | KR100475996B1 (ko) |
CN (1) | CN1254010C (ko) |
TW (1) | TW563291B (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3949990B2 (ja) * | 2002-03-29 | 2007-07-25 | 株式会社東芝 | 電圧制御発振器 |
JP3783235B2 (ja) * | 2003-06-16 | 2006-06-07 | セイコーエプソン株式会社 | 圧電発振器とその製造方法ならびに圧電発振器を利用した携帯電話装置および圧電発振器を利用した電子機器 |
JP4676286B2 (ja) * | 2005-08-31 | 2011-04-27 | 東光株式会社 | 単板型圧電バイモルフ素子の製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52118598A (en) * | 1976-03-31 | 1977-10-05 | Tdk Corp | Dielectric porcelain composition |
US4219866A (en) * | 1979-01-12 | 1980-08-26 | Sprague Electric Company | Ceramic capacitor having a dielectric of (Pb,La) (Zr,Ti)O3 and BaTiO3 |
KR830003966A (ko) * | 1980-09-05 | 1983-06-30 | 모가미 쯔도무 | 발진 주파수 조정장치 |
JP2743701B2 (ja) * | 1992-03-30 | 1998-04-22 | 株式会社村田製作所 | 発振回路 |
JPH06199570A (ja) * | 1992-12-29 | 1994-07-19 | Tdk Corp | 複合ペロブスカイト型セラミック体 |
JP3129175B2 (ja) * | 1995-11-27 | 2001-01-29 | 三菱マテリアル株式会社 | (Ba,Sr)TiO3薄膜コンデンサの製造方法 |
JP2000281434A (ja) * | 1999-03-31 | 2000-10-10 | Kyocera Corp | 誘電体磁器 |
-
2001
- 2001-07-10 JP JP2001209270A patent/JP2003023321A/ja active Pending
-
2002
- 2002-06-27 TW TW91114170A patent/TW563291B/zh not_active IP Right Cessation
- 2002-07-03 US US10/189,125 patent/US6690246B2/en not_active Expired - Lifetime
- 2002-07-09 KR KR10-2002-0039689A patent/KR100475996B1/ko active IP Right Grant
- 2002-07-10 CN CNB021261474A patent/CN1254010C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1396706A (zh) | 2003-02-12 |
US20030095010A1 (en) | 2003-05-22 |
US6690246B2 (en) | 2004-02-10 |
TW563291B (en) | 2003-11-21 |
CN1254010C (zh) | 2006-04-26 |
JP2003023321A (ja) | 2003-01-24 |
KR100475996B1 (ko) | 2005-03-10 |
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