JPH0585496B2 - - Google Patents
Info
- Publication number
- JPH0585496B2 JPH0585496B2 JP60187715A JP18771585A JPH0585496B2 JP H0585496 B2 JPH0585496 B2 JP H0585496B2 JP 60187715 A JP60187715 A JP 60187715A JP 18771585 A JP18771585 A JP 18771585A JP H0585496 B2 JPH0585496 B2 JP H0585496B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- temperature
- porcelain
- powder
- test piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 claims description 16
- 229910052573 porcelain Inorganic materials 0.000 claims description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 229910020599 Co 3 O 4 Inorganic materials 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims 1
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 description 11
- 230000035939 shock Effects 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000807 Ga alloy Inorganic materials 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Insulating Materials (AREA)
Description
〔産業上の利用分野〕
この発明は、多層配線基板等の材料として使用
される絶縁性磁器組成物に関する。
〔従来の技術〕
従来、多層回路基板の材料には、主として絶縁
性に優れたアルミナ系磁器組成物が使用されてい
た。この磁器組成物は約96%のAl2O3粉末と、
SiO2,MgO,CaO等の粉末からなる磁器原料を
還元雰囲気において、1500〜1600℃の温度で焼成
することにより得られる。また、基板内部の導体
の印刷にはMoやWを主体とした導電ペーストが
使用されている。
〔発明が解決しようとする問題点〕
上記従来のアルミナ磁器組成物は、熱膨張係数
が7.5×10-6/℃(線膨張係数)以上と大きいた
め、熱衝撃に弱く、これから作られた多層回路基
板に数十度以上の温度差の熱衝撃を与えると、ク
ラツクが発生するという欠点があつた。このた
め、多層配線基板に電子部品を半田付けする際に
は、同基板を予め半田の溶融温度に近い温度ま
で、ゆつくり時間をかけて加熱していく、いわゆ
る予熱工程を必要とした。
この発明は、従来のアルミナ系絶縁性磁器組成
物における上記の問題を解決すべくなされたもの
で、従来の磁器組成物に比べて熱膨張係数が小さ
く、電気部品の半田付け等に伴う熱衝撃によつ
て、多層配線基板にクラツク等の損傷が生じにく
い絶縁性磁器組成物を提供することを目的とす
る。
〔問題を解決するための手段〕
この発明の絶縁性磁器組成物は、Al2O3を20〜
70重量%と、SiO2を10〜55重量%と、B2O3を3
〜30重量%と、Li2Oを0.1〜3重量%と、CaO,
SrO,BaO,ZnOのグループから選ばれた一種以
上を1〜40重量%と、Mn3O4,Co3O4,NiO,
CuOのグループから選ばれた一種以上を0.5〜10
重量%の比率で混合したものを、酸化雰囲気で焼
成してなるものである。
〔実施例〕
以下、この発明の実施例ついて説明する。
まず下表に掲げる各試料の製作方法と条件につ
いて、試料1を例にとつて説明すると、Al2O3粉
末を40.0g、SiO2粉末を10.0g、B2O3粉末を30.0
g、Li2CO3粉末を0.25g、CaCO3粉末を17.8g、
BaCO3粉末を6.32g、及びMn3O4粉末を5.0gず
つ秤量した。なお、上記Li,Ca,Baの炭酸塩粉
末は、何れも空気中で安定なものを使用した。
上記粉末をボールミルに入れ、約15時間ボール
ミリングすることにより、これらを湿式混合し
た。
次に、上記混合粉末に対して、ポリビニルブチ
ラール樹脂を8重量%、ジブチルフタレートを8
重量%、アセトンを40重量%、オレイン酸を0.5
重量%ずつ加えて攪拌し、スラリーを作つた。次
で、このスラリーをドクターブレード法によつて
延伸し、厚さ0.25mmの長尺な未焼結磁器シートを
作り、これを10cm角に切断した。
そして切断された未焼結磁器シートから次の3
種類のテストピースを作つた。第一のテストピー
スは、上記シートを直径16mmの円板形に打ち抜い
たものである。第二のテストピースは、上記シー
トを17枚重ねて圧着したものを、長さ36mm、幅4
mmの寸法に切断したもので、その厚さは約4mmで
ある。第三のテストピースは、上記シートにPd
を主成分とする導電ペーストを用いて配線パター
ンを印刷し、これを6枚重ねて圧着し、長さ30
mm、幅15mmに切断したもので、厚さは約1.5mmで
ある。
これらテストピースを、空気中で毎時100℃の
割合で1150℃まで昇温させ、この温度を2時間維
持した後、常温まで毎時200℃の割合で冷却する
というプロフアイルで焼成した。
続いて、焼成後のテストピースについて、それ
ぞれ次の方法で試験を行つた。
第一の円板形のテストピースについては、その
両主面にIn−Ga合金を塗布して、直径10mmの電
極を設け、比誘電率ε、クオリテイフアクタQ及
び抵抗率ρ(Ωcm)を測定した。比誘電率εは、
25℃の温度下において1MHzの周波数で測定した
静電容量により算出し、Qは、上記静電容量と同
様の条件で測定した。また抵抗率ρは、500Vの
直流電圧を印加し、印加開始から60秒後の絶縁抵
抗値から算出した。
17枚の磁器シートを積層して作られた第二のテ
ストピースについては、温度20〜500℃における
線膨張係数α(/℃)を測定した。
Pdの配線パターンが印刷された第三のテスト
ピースについては、予熱せずに常温から250℃の
溶融半田に3秒間浸漬した後、引き上げ、常温ま
で自然冷却させて、クラツク等の発生の有無を調
べた。また、このテストピースを使用し、内部の
配線パターンが肉眼で透けて見えるか否かで遮光
性を調べた。そして、透けて見えないものを遮光
性良好とし、透けて見えるものを遮光性不良とし
た。
以下、試料2〜53についても、下表の各欄に示
すような組成を有する磁器組成物から、3種類の
テストピースを作り、それぞれ試料1と同様の方
法と条件で試験を行つた。但し、焼成温度FTは、
各々異なり、別表各欄に示す温度で実施した。
下表から明らかな通り、これら1〜53までの試
料は、焼成温度FTが950〜1250℃、線膨張係数α
が3.0〜6.0×10-6/℃であつた。また、何れも溶
融半田への浸漬試験においてクラツク等の発生は
認められず、遮光性も良好であつた。なお、下表
に具体的な数値の掲載を省略したが、これら試料
の非誘電率εは6〜9、Qは500〜2000、抵抗率
ρは1×1013〜5×1014Ωcmであつた。
また、上記実施例との比較のため、次の表の試
料No.54〜65のように、本発明の組成要件を満たさ
ない磁器組成物から、3種類のテストピースを作
つた。そして、それらのそれぞれについて、試料
No.1〜53と同様の方法と条件で試験を行い、その
結果を焼成温度FTと共に表の試料No.54〜65の欄
に示した。
[Industrial Application Field] This invention relates to an insulating ceramic composition used as a material for multilayer wiring boards and the like. [Prior Art] Conventionally, alumina-based ceramic compositions with excellent insulation properties have been mainly used as materials for multilayer circuit boards. This porcelain composition contains approximately 96 % Al2O3 powder,
It is obtained by firing a porcelain raw material made of powder such as SiO 2 , MgO, CaO, etc. at a temperature of 1500 to 1600°C in a reducing atmosphere. Furthermore, a conductive paste mainly composed of Mo or W is used to print conductors inside the substrate. [Problems to be solved by the invention] The conventional alumina porcelain composition described above has a large thermal expansion coefficient of 7.5×10 -6 /°C (linear expansion coefficient) or more, so it is susceptible to thermal shock, and the multilayers made from it are susceptible to thermal shock. The drawback was that cracks would occur if the circuit board was subjected to a thermal shock with a temperature difference of several tens of degrees or more. Therefore, when soldering electronic components to a multilayer wiring board, it is necessary to perform a so-called preheating process in which the board is slowly heated over a period of time to a temperature close to the melting temperature of the solder. This invention was made to solve the above-mentioned problems with conventional alumina-based insulating porcelain compositions, which have a smaller coefficient of thermal expansion than conventional porcelain compositions, and which are less susceptible to thermal shock caused by soldering electrical parts. An object of the present invention is to provide an insulating ceramic composition that is less likely to cause damage such as cracks to a multilayer wiring board. [Means for solving the problem] The insulating porcelain composition of the present invention contains Al 2 O 3 from 20 to 20%.
70% by weight, 10-55% by weight of SiO 2 and 3 % by weight of B 2 O 3
~30% by weight, 0.1-3% by weight of Li 2 O, CaO,
1 to 40% by weight of one or more selected from the group of SrO, BaO, ZnO, Mn 3 O 4 , Co 3 O 4 , NiO,
0.5 to 10 of one or more selected from the CuO group
It is made by baking a mixture of % by weight in an oxidizing atmosphere. [Examples] Examples of the present invention will be described below. First, to explain the manufacturing method and conditions for each sample listed in the table below, using Sample 1 as an example, 40.0g of Al 2 O 3 powder, 10.0g of SiO 2 powder, and 30.0g of B 2 O 3 powder.
g, 0.25 g of Li 2 CO 3 powder, 17.8 g of CaCO 3 powder,
6.32 g of BaCO 3 powder and 5.0 g of Mn 3 O 4 powder were weighed. The Li, Ca, and Ba carbonate powders used were all stable in the air. The above powders were wet mixed by placing them in a ball mill and ball milling for about 15 hours. Next, to the above mixed powder, 8% by weight of polyvinyl butyral resin and 8% by weight of dibutyl phthalate were added.
wt%, acetone 40 wt%, oleic acid 0.5
A slurry was prepared by adding each weight percent at a time and stirring. Next, this slurry was drawn by a doctor blade method to produce a long unsintered porcelain sheet with a thickness of 0.25 mm, which was cut into 10 cm squares. Then, from the cut unsintered porcelain sheets, the following 3
I made various test pieces. The first test piece was obtained by punching out the above sheet into a disk shape with a diameter of 16 mm. The second test piece was made by stacking and crimping 17 of the above sheets, with a length of 36 mm and a width of 4 mm.
It is cut to a size of mm, and its thickness is approximately 4 mm. The third test piece is Pd on the sheet above.
A wiring pattern was printed using a conductive paste whose main ingredient was
mm, cut to 15 mm wide, and approximately 1.5 mm thick. These test pieces were fired in a profile in which the temperature was raised to 1150°C at a rate of 100°C/hour in air, this temperature was maintained for 2 hours, and then cooled to room temperature at a rate of 200°C/hour. Subsequently, the fired test pieces were tested in the following manner. For the first disk-shaped test piece, In-Ga alloy was applied to both main surfaces, electrodes with a diameter of 10 mm were provided, and the relative permittivity ε, quality factor Q, and resistivity ρ (Ωcm) were determined. It was measured. The relative dielectric constant ε is
It was calculated from the capacitance measured at a frequency of 1 MHz at a temperature of 25° C., and Q was measured under the same conditions as the capacitance described above. Further, the resistivity ρ was calculated from the insulation resistance value 60 seconds after applying a DC voltage of 500V. Regarding the second test piece made by laminating 17 porcelain sheets, the coefficient of linear expansion α (/°C) at a temperature of 20 to 500°C was measured. The third test piece, on which the Pd wiring pattern was printed, was immersed in molten solder at room temperature to 250°C for 3 seconds without preheating, then pulled out, allowed to cool naturally to room temperature, and checked for cracks, etc. Examined. Furthermore, using this test piece, the light-shielding properties were examined by determining whether the internal wiring pattern was visible to the naked eye. Those that could not be seen through were considered to have good light-shielding properties, and those that could be seen through were judged to have poor light-shielding properties. Hereinafter, for Samples 2 to 53, three types of test pieces were made from the porcelain compositions having the compositions shown in each column of the table below, and each test piece was tested in the same manner and under the same conditions as Sample 1. However, the firing temperature FT is
Each test was conducted at a different temperature as shown in each column of the attached table. As is clear from the table below, these samples 1 to 53 have a firing temperature FT of 950 to 1250℃ and a linear expansion coefficient α
was 3.0 to 6.0×10 -6 /°C. In addition, no cracks were observed in any of them in the immersion test in molten solder, and the light shielding properties were also good. Although specific numerical values are omitted in the table below, the dielectric constant ε of these samples is 6 to 9, Q is 500 to 2000, and resistivity ρ is 1 × 10 13 to 5 × 10 14 Ωcm. Ta. In addition, for comparison with the above examples, three types of test pieces were made from porcelain compositions that did not meet the compositional requirements of the present invention, such as Sample Nos. 54 to 65 in the following table. And for each of them, the sample
Tests were conducted using the same method and conditions as Nos. 1 to 53, and the results are shown in the columns of Samples Nos. 54 to 65 in the table along with the firing temperature FT.
【表】【table】
【表】【table】
【表】【table】
【表】【table】
【表】【table】
【表】【table】
【表】【table】
以上説明した通り、この発明の絶縁磁器組成物
では、3.0〜6.0×10-6/℃と小さい線膨張係数α
が得られる。従つてこの磁器組成物から作られた
多層回路基板は、電子部品の半田付け工程で通常
受ける230℃程度の温度差による熱衝撃によつて、
クラツクが発生しない。これにより、多層配線基
板に電子部品を半田付けする際に、従来必要とさ
れていた予熱工程を省くことができる。
As explained above, the insulating porcelain composition of the present invention has a small linear expansion coefficient α of 3.0 to 6.0×10 -6 /°C.
is obtained. Therefore, multilayer circuit boards made from this porcelain composition are susceptible to thermal shock caused by a temperature difference of about 230°C, which is normally experienced during the soldering process of electronic components.
Cracks do not occur. Thereby, when soldering electronic components to a multilayer wiring board, it is possible to omit a preheating step that is conventionally required.
Claims (1)
%と、B2O3を3〜30重量%と、Li2Oを0.1〜3重
量%と、CaO,SrO,BaO,ZnOのグループから
選ばれた一種以上を1〜40重量%と、Mn3O4,
Co3O4,NiO,CuOのグループから選ばれた一種
以上を0.5〜10重量%の比率で混合したものを、
酸化雰囲気で焼成してなる絶縁性磁器組成物。1 20-70% by weight of Al2O3 , 10-55% by weight of SiO2 , 3-30% by weight of B2O3 , 0.1-3% by weight of Li2O , CaO, SrO, 1 to 40% by weight of one or more selected from the group of BaO, ZnO, Mn 3 O 4 ,
A mixture of one or more selected from the group of Co 3 O 4 , NiO, CuO at a ratio of 0.5 to 10% by weight,
An insulating porcelain composition fired in an oxidizing atmosphere.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60187715A JPS6246952A (en) | 1985-08-26 | 1985-08-26 | Insulative ceramic composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60187715A JPS6246952A (en) | 1985-08-26 | 1985-08-26 | Insulative ceramic composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6246952A JPS6246952A (en) | 1987-02-28 |
JPH0585496B2 true JPH0585496B2 (en) | 1993-12-07 |
Family
ID=16210904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60187715A Granted JPS6246952A (en) | 1985-08-26 | 1985-08-26 | Insulative ceramic composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6246952A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5057612B2 (en) * | 2001-02-27 | 2012-10-24 | 京セラ株式会社 | Low-temperature sintered porcelain and wiring board using the same |
JP2002338353A (en) * | 2001-05-17 | 2002-11-27 | Aiomu Technology:Kk | Dielectric ceramic composition |
CN114349484B (en) * | 2021-12-28 | 2023-08-08 | 江苏省陶瓷研究所有限公司 | Ceramic material for calcining electrode material of lithium battery and preparation method thereof |
-
1985
- 1985-08-26 JP JP60187715A patent/JPS6246952A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6246952A (en) | 1987-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH03197333A (en) | Crystallizable glass and thick membranous composition thereof | |
JPH03241724A (en) | Composite circuit board with a built-in capacitor | |
JP2800176B2 (en) | Glass ceramic composition | |
JPS6325268A (en) | Glass ceramic dielectric composition | |
US6270880B1 (en) | Crystalline glass composition for use in circuit board, sintered crystalline glass, insulator composition insulating paste and thick film circuit board | |
JPH0585497B2 (en) | ||
EP0498410B1 (en) | Partially crystallizable glass compositions | |
JPH0585496B2 (en) | ||
JPH0585498B2 (en) | ||
EP0498409A1 (en) | Partially crystallizable glass compositions | |
JPH034594A (en) | Composite circuit board having built-in capacitor | |
JPH024549B2 (en) | ||
JPH02212336A (en) | Glass-ceramic composition and its use | |
JPH0260236B2 (en) | ||
JPS6117086B2 (en) | ||
JPS6350305B2 (en) | ||
JPH02305490A (en) | Capacitor built-in composite circuit substrate | |
JPS6350306B2 (en) | ||
JPH088191B2 (en) | Conductive paste for electrodes of porcelain capacitors | |
JPH0477442B2 (en) | ||
JPH0428121B2 (en) | ||
JPH0428127B2 (en) | ||
JPH0428123B2 (en) | ||
JPH0220583B2 (en) | ||
JPH0428122B2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |