JPS6296379A - Al↓2 O↓3含有セラミツク上に、強固に付着している、ロウ接性でパタ−ン化可能の金属層をつくる方法 - Google Patents

Al↓2 O↓3含有セラミツク上に、強固に付着している、ロウ接性でパタ−ン化可能の金属層をつくる方法

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Publication number
JPS6296379A
JPS6296379A JP61244327A JP24432786A JPS6296379A JP S6296379 A JPS6296379 A JP S6296379A JP 61244327 A JP61244327 A JP 61244327A JP 24432786 A JP24432786 A JP 24432786A JP S6296379 A JPS6296379 A JP S6296379A
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Japan
Prior art keywords
screen printing
printing paste
metal layer
al2o3
layer
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JP61244327A
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ビルギト・ピツツ
ヘルムート・ザウツター
ロタール・ヴエーバー
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Robert Bosch GmbH
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Robert Bosch GmbH
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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 産業上の+1j用分野 不発明は、Al2O3龜有セラミツク上に強固に付着し
ている、ロウ液性のパターンイし可能の金櫟層全段造す
る方法に関する。
従来の技術 Al2O3含有セラミック上に、強固に付着している銅
層tや酸化銅と金属銅と全同時に焼付けろことによって
設けることは公知であり、0の場合焼句条件は、金属銅
が十分に保持されて、該金属銅?引続きめつきにより補
強することができるように制御しなければならない。こ
の場合に得られる層は、一方では比較的厚く、他方では
酸素不含の焼結雰囲気が無条件に必要であり、これが高
い装置費全必要とすboさらに、かかる基板上に設けら
れた銅層の付着強度は多くの目的になお十分ではない。
強固に付着しているニッケル層?つくる同様の方法は公
知ではない。
発明?達成するための手段 本発明によるAl2O3宮有セラミツク上に、強電に付
着している、ロウ液性でパターン化可能の金へ層?つく
る方法は、セラミック基板に金属酸化物含有スクリン印
刷用ペースト′に全面に印刷し、空気中で800〜16
508Cで焼付け、こうして生成したスピネル層?引続
き無電流で金属化し、その後無電流でつくられた金属層
?めっきで補強すること?特数とする。
本発明方法は、付Mk仲介するスピネル中間層?空気中
で焼付けることができ、付着仲介層上に設けられた金属
層の付着強度が著しく改良。
されかつ方法がニッケルにも適用できるという利点全頁
する。
特許請求の範囲第2項以降に記載された手段により、特
許請求の範囲第1項に記載された方法の有利な実施態様
および改良が可能である。
付着會さらに改良するのにとくに有利なのは、スクリン
印刷用ペーストに酸化アルミニウムまたは焼付@度にお
いて酸化アルミニウム?形成する化合物?添加すること
である。この場合アルミニウムアセチルアセトネートA
1(05H702hがとくに有利であると立証された。
それというのも粉末としての酸化アルミニウムに比して
、これがヌクリン印刷用役−ストに可溶であり、従って
非常に均旬なフィルム?生じるからである。
実施例 酸化アルミニウムセラミックからなる小板状基板ケ、次
の組成?有するスクリン印刷用に一ヌトで印刷する: 8.2g   フクロヘ置部ン40容量部、ベンジルア
ルコール80容量部、 α−テルピネオール50谷量部 およびエチルセルロース15it 置部からなるペースト形成剤 0.635 g  アルミニウムアセチルアセトネート 6 g   上記組成の浴剤混合物 0.9 gCu20 (−ストを乾燥した後、印刷された基板?1200°C
で空気中でQ、 5〜1時間処理する。
この礪合差当ジCu2OがCuOK変換し、このCuO
かに一スト中に存在するAl2O3ならびに基板表面の
Al2O3と次式によジ反応して銅スピネルが生成する
: CuO+  Al2O3→CuAl20゜冷却した後、
歌化アルミニウム基板上の表面上につくられたスピネル
層?市販の浴中で銅めっきし、その際表面上に厚さ1μ
の薄い銅層が生成する。この銅層は、所定の便用目的に
より、全体を銅めっき浴中で増強することもできるし、
表面にポジラッカーを塗布し、これケ相応に露光して現
像することにより所望のパターンケ設けることもできる
。その後、たんに露出している部分上めっきにより補強
し、場合により良好なロウ液性のためになお鉛・錫合金
で破iiする。
残留する、めっきで補強されてない、無電流で設けられ
た銅の層は、簡単にエツチング浴中で除去できる。
Cu2Oの代りに、酸化ニッケルNiO?!−s′有す
るスクリン印刷用ペーストを使用する陽会、基体表面上
にニッケルスtネルNiAl2O,が付看仲命中間層と
して生成し、次いでこの層上に同様に市販の浴を用い無
電流でニッケル島?設けることができる。このスクリン
印刷用役−ストも、付着強度?改良するために、アルミ
ニウムアセチルアセトネートまたは酸化アルミニウムモ
含有する。
熱処理により基板表面上に生成されるヌビネルは絶縁体
であるので、これは基板上に導体路をつくるのに適当で
ある。

Claims (1)

  1. 【特許請求の範囲】 1、Al_2O_3含有セラミック上に、強固に付着し
    ている、ロウ液性でパターン化可能の金属層をつくる方
    法において、セラミック基板を金属酸化物含有スクリン
    印刷用ペーストで全面に印刷し、空気中で800〜13
    50℃で焼付け、こうして生成したスピネル層を引続き
    無電流で金属化し、その後無電流でつくつた金属層をめ
    つきにより補強することを特徴とするAl_2O_3含
    有セラミック上に、強固に付着している、ロウ液性でパ
    ターン化可能の金属層をつくる方法。 2、Cu_2O含有スクリン印刷用ペーストを使用し、
    生じた銅スピネル層を無電流で銅めつきする、特許請求
    の範囲第1項記載の方法。 3、NiO含有スクリン印刷用ペーストを使用し、生成
    したニッケルスピネル層を無電流でニッケルめつきする
    、特許請求の範囲第1項記載の方法。 4、スクリン印刷用ペーストにAl_2O_3または焼
    付温度においてAl_2O_3を生成するアルミニウム
    化合物を添加する、特許請求の範囲第1項から第3項ま
    でのいずれか1項記載の方法。 5、スクリン印刷用ペーストにアルミニウムアセチルア
    セトネートを添加する、特許請求の範囲第4項記載の方
    法。 6、スクリン印刷用ペーストに、式: MeO+Al_2O_3→MeAl_2O_4(式中M
    =Cu、Ni)による化学量論的反応に関してAl_2
    O_38〜12重量%に相当するような量のアルミニウ
    ム化合物を添加する、特許請求の範囲第4項または第5
    項記載の方法。
JP61244327A 1985-10-18 1986-10-16 Al↓2 O↓3含有セラミツク上に、強固に付着している、ロウ接性でパタ−ン化可能の金属層をつくる方法 Pending JPS6296379A (ja)

Applications Claiming Priority (2)

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DE3537161A DE3537161C2 (de) 1985-10-18 1985-10-18 Verfahren zur Herstellung festhaftender, lötfähiger und strukturierbarer Metallschichten auf Aluminiumoxid-haltiger Keramik
DE3537161.7 1985-10-18

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JPS6296379A true JPS6296379A (ja) 1987-05-02

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US (1) US4780332A (ja)
JP (1) JPS6296379A (ja)
DE (1) DE3537161C2 (ja)
FR (1) FR2588858A1 (ja)

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Also Published As

Publication number Publication date
FR2588858A1 (fr) 1987-04-24
DE3537161C2 (de) 1995-08-03
US4780332A (en) 1988-10-25
DE3537161A1 (de) 1987-04-23

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