JP2022501827A - 電気部品用、特に電子部品用のキャリア基板およびキャリア基板の製造方法 - Google Patents
電気部品用、特に電子部品用のキャリア基板およびキャリア基板の製造方法 Download PDFInfo
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Abstract
Description
有利には、一次方向で測定された側面プロファイルは、第1の縁と第2の縁との間の第1の長さにわたって延在し、第1の長さと第1の厚さとの間の比が0.5から1.9の間、好ましくは0.6から1.7、より好ましくは0.7から1.5の間であることが規定される。これにより、比較的広い側面曲線を実現することができる。比較として、第1の長さ対第1の厚さの比は、通常、0.5未満である。この側面プロファイルの拡大は、耐熱衝撃性にプラスの効果をもたらすだけでなく、特に第1の縁の非常に近くに配置されたコンポーネントの場合、これらが熱輸送のための金属層の側面プロファイルの下方の領域を使用可能であるため、熱の拡散をサポートすることが判明した。広い側面プロファイルにより、極大と極小とを有する構造をより制御された方法で設定することもできる。好ましくは、特に極大が側面プロファイルから明確に明らかでない場合、第2の厚さは、一次方向から見て、第2の縁から第1の長さの2/5倍である点で測定される。
均一な酸化銅層が形成されるように銅箔を酸化すること。
セラミック層に銅箔を配置すること。
複合材料を約1025乃至1083℃のプロセス温度、例えば約1071℃まで加熱すること。
室温まで冷ますこと。
耐熱衝撃性試験は−55°から+150°の間で実施された。したがって、1サイクル内で、各キャリア基板1は、−55°から+150°の間の温度変動に晒され、サイクル数が記録され、その後に絶縁層11または金属層12の脱離または引き裂きが検出される(例えば、超音波画像化プロセスまたは目視検査によって)。したがって、キャリア基板1がまだ使用可能であるか、または脱離を示さなかった後の平均サイクル数は、キャリア基板1の耐熱衝撃性の尺度である。耐熱衝撃試験は、以下の3つのタイプについて実施された。
極大21および極小22を有する側面プロファイル2は、ドーム型の凹部がエッジ領域に組み込まれる従来のアプローチと比較して、耐熱衝撃性の大幅な改善をもたらす。
2…側面プロファイル
8…所定の破壊点
11…絶縁層
12…金属層
15…第1の縁
16…第2の縁
17…機能領域
21…極大
22…極小
25…接合領域
31…上側
32…下側
100…マスターカード
D1…第1の厚さ
D2…第2の厚さ
D3…第3の厚さ
V1…第1の接続線
V2…第2の接続線
L1…第1の長さ
L2…第2の長さ
L3…第3の長さ
W1…第1の角度
W2…第2の角度
S…積層方向
HSE…主延長面
P…一次方向
A…距離
Claims (15)
- キャリア基板(1)であって、
絶縁層(11)と金属層(12)とを備え、
側面プロファイル(2)、特にエッチング側面プロファイルは、主延長面(HSE)に平行に延びる一次方向(P)で前記金属層(12)に少なくとも帯状に隣接し、
前記一次方向(P)から見た場合、前記側面プロファイル(2)は、前記絶縁層(11)とは反対側に向いている前記金属層(12)の上側(31)の第1の縁(15)から、前記絶縁層(11)に対向する前記金属層(12)の下側の第2の縁(16)まで延びるキャリア基板(1)において、前記側面プロファイル(2)は、前記一次方向(P)から見た場合、少なくとも1つの極大(21)および少なくとも1つの極小(22)を有することを特徴とするキャリア基板(1)。 - 前記金属層(12)は、前記側面プロファイル(2)の外側で、特に機能面(17)として提供される中央領域において第1の厚さ(D1)と、前記極大(21)において第2の厚さ(D2)とを有し、前記第2の厚さ(D2)は前記第1の厚さ(D1)よりも小さい、請求項1に記載のキャリア基板(1)。
- 前記第1の厚さ(D1)に対する前記第2の厚さ(D2)の比が0.95未満、好ましくは0.9未満、より好ましくは0.8未満である、請求項2に記載のキャリア基板(1)。
- 前記側面プロファイル(2)は、前記一次方向(P)で測定された第1の長さ(L1)にわたって延び、前記第1の厚さ(D1)に対する前記第1の長さ(L1)の比は、0.5から1.9の間、好ましくは0.6から1.7の間、より好ましくは0.7から1.5の間の値を有する、請求項2又は3に記載のキャリア基板(1)。
- 前記側面プロファイル(2)は、前記下側(32)の前記第2の縁(16)から第2の長さ(L2)にわたって前記極大(21)まで延び、前記第1の長さ(L1)に対する前記第2の長さ(L2)の比は、0.2から0.7の間、好ましくは0.25から0.6、より好ましくは0.3から0.5の間の値を有する、請求項2乃至4の何れか一項に記載のキャリア基板(1)。
- 前記第1の長さ(L1)に対する第2の厚さ(D2)の比は、0.08から0.4の間、好ましくは0.09から0.35の間、より好ましくは0.1から0.3の間の値、又は0.1である、請求項2乃至5の何れか一項に記載のキャリア基板(1)。
- 前記第1の縁(16)および前記第2の縁(15)を通過する仮想的な直線の第1の接続線(V1)は、前記金属層(12)が前記絶縁層(11)に接合されることにより、接合領域(25)に対して第1の角度(W1)だけ傾斜し、前記第2の縁(16)および前記極大(21)を通過する仮想的な直線の第2の接続線(V2)は、前記接合領域(25)に対して第2の角度(W2)だけ傾斜している、請求項1乃至6の何れか一項に記載のキャリア基板(1)。
- 前記第2の角度(W2)は前記第1の角度(W1)よりも小さく、特に前記第1の角度(W1)に対する前記第2の角度(W2)の比は、0.8よりも小さく、好ましくは0.7よりも小さく、より好ましくは0.6よりも小さい、請求項7に記載のキャリア基板(1)。
- 前記第2の角度(W2)は前記第1の角度(W1)よりも大きく、特に前記第1の角度(W1)に対する前記第2の角度(W2)の比は、1から2.5の間、好ましくは1.2から2の間、またはより好ましくは約1.4から1.8の間の値を有する、請求項7又は8に記載のキャリア基板(1)。
- 前記第1の角度(W1)と前記第2の角度(W2)との間の比は、前記主延長面(HSE)に平行に延びる周方向に沿って変化し、特に調整される、請求項8又は9に記載のキャリア基板(1)。
- 前記金属層(12)が前記極小(22)において第3の厚さ(D3)を有し、前記第2の厚さ(D2)に対する前記第3の厚さ(D3)の比が0.1から1の間、好ましくは0.2から0.8の間、より好ましくは0.3から0.6の間の値を有する、請求項2乃至10の何れか一項に記載のキャリア基板(1)。
- 請求項1乃至11の何れか一項に記載のキャリア基板(1)であって、前記第1の厚さ(D1)は、
0.2から1mmの間、好ましくは0.25から0.8mmの間、より好ましくは0.3から0.6mmの間の値、又は
0.4から2.5mmの間、好ましくは0.5から2mmの間、より好ましくは0.6から1.5mmの間の値を有する、キャリア基板(1)。 - 前記キャリア基板(1)は、特に第1の電気部品と共に、カブセル化により埋め込まれる、請求項1乃至12の何れか一項に記載のキャリア基板(1)。
- 第2の電気部品が前記カプセル化の外側に提供され、前記第1の電気部品は、好ましくは、前記カプセル化を通って延びるスルーホール接続を介して前記第1の電気部品に接続される、請求項13に記載のキャリア基板(1)。
- 前記側面プロファイル(2)が、好ましくはエッチングステップ、特に単一のエッチングステップによって形成される、請求項1乃至14の何れか一項に記載のキャリア基板(1)を製造する方法。
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