JP6587792B2 - 埋め込み型半導体デバイスパッケージおよびその製造方法 - Google Patents
埋め込み型半導体デバイスパッケージおよびその製造方法 Download PDFInfo
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- JP6587792B2 JP6587792B2 JP2014192072A JP2014192072A JP6587792B2 JP 6587792 B2 JP6587792 B2 JP 6587792B2 JP 2014192072 A JP2014192072 A JP 2014192072A JP 2014192072 A JP2014192072 A JP 2014192072A JP 6587792 B2 JP6587792 B2 JP 6587792B2
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Description
12 半導体デバイス
14 誘電体層(第1の誘電体層、予め金属化された誘電体層、ポリイミド層、ポリイミドフィルム)
16 誘電体層(第2の誘電体層、背面誘電体層、ポリイミド層、背面ポリイミドフィルム)
18 前面(POLパッケージ構造10の)
20 背面(POLパッケージ構造10の)
22 接着剤
24 誘電体封入材(プリプレグ封入材)
26 誘電体シート、誘電体材料、誘電体層(プリプレグシート、プリプレグ材料、プリプレグ層)
28 開口/カットアウト
30 ビア
32 前面(半導体デバイス12の)
34 背面(半導体デバイス12の)
36 貫通ビア
38 金属相互接続、POL相互接続、POL金属相互接続、相互接続
40 銅層
42 剥離層
44 銅キャリア層
48 銅層
50 コンタクトパッド
52 位置合せマーク
54 付加的な層
56 付加的な層
58 接着剤
59 ビア
60 パッケージ構造
61 銅箔
62 誘電体ウェブ材料(POLウェブ)
64 開口/カットアウト
66 POLパッケージ構造
70 POLパッケージ構造
72 パワー半導体デバイス(電子部品)
74 ゲートドライバ(電子部品)
76 受動デバイス(電子部品)
78 銅シム
80 はんだ
82 熱伝導材料(TIM)
Claims (20)
- 第1の誘電体層(14)と、
前記第1の誘電体層(14)に付着される少なくとも1つの半導体デバイス(12)と、
前記少なくとも1つの半導体デバイス(12)を埋め込むように、前記第1の誘電体層(14)および前記少なくとも1つの半導体デバイス(12)の周りに付着される誘電体シート(26)と、
前記少なくとも1つの半導体デバイス(12)に至るように形成される複数のビア(30)であって、前記第1の誘電体層(14)および前記誘電体シート(26)に形成される複数のビア(30)と、
前記第1の誘電体層(14)および前記誘電体シート(26)を貫通し延長する複数の貫通ビア(36)と、
前記少なくとも1つの半導体デバイス(12)に対する電気的相互接続を形成するために、前記複数のビア(30)に、およびパッケージ構造(10)の1つまたは複数の外側に面する表面(18、20)上に形成される金属相互接続(38)と、
前記少なくとも1つの半導体デバイス(12)の周りに配置される誘電体ウェブ(62)を含み、
前記誘電体ウェブ(62)は、非溶解材料で形成され、前記少なくとも1つの半導体デバイス(12)及び、前記少なくとも1つの半導体デバイス(12)の周りに付着された前記誘電体シート(26)を受け取るために、それに形成される1つまたは複数の開口(28)を含むとともに、前記誘電体ウェブ(62)は、前記誘電体シート(26)と比較して増加した剛性を有し、積層プロセスの間に流れないように構築され、前記誘電体ウェブ(62)は、プリント回路基板(PCB)コア材料、ポリイミド層、セラミック材料、およびこれらを組み合わせた材料のうちの1つから構成され、
前記第1の誘電体層(14)は、積層プロセスの間に流れない材料から構成され、
前記誘電体シート(26)の各々に前記少なくとも1つの半導体デバイス(12)を受け入れる開口が形成され、前記誘電体シート(26)の各々は、前記積層プロセスで硬化する際に溶解し流れるように構成される硬化材料から構成され、そのようにして、前記誘電体ウェブ(62)の前記1つまたは複数の開口(28)内に配置された誘電体シート(26)を含む前記誘電体シート(26)は溶解し流れて、前記少なくとも1つの半導体デバイス(12)の周囲に存在する任意の空気ギャップを埋めるパッケージ構造(10)。 - 前記誘電体ウェブ(62)は、銅の回路を有するように構築される、請求項1に記載のパッケージ構造(10)。
- 前記誘電体シート(26)は、プリプレグ材料、重合樹脂、または接着剤のうちの1つから構成される、請求項1または2のいずれかに記載のパッケージ構造(10)。
- 前記少なくとも1つの半導体デバイス(12)は、パワー半導体デバイス(72)を含む、請求項1乃至3のいずれかに記載のパッケージ構造(10)。
- 前記複数のビア(30)は、
前記第1の誘電体層(14)を貫通し、前記パワー半導体デバイス(72)の前面(32)に至るように形成されるビア(30)と、
前記誘電体シート(26)を貫通し、前記パワー半導体デバイス(72)の背面(34)に至るように形成されるビア(30)と、を含み、
前記ビア(30)は、前記パッケージ構造(10)の熱的および電気的ビアとして機能し、
前記金属相互接続(38)は、前記パワー半導体デバイス(72)の前記前面(32)および前記背面(34)に至る前記ビア(30)の各々に形成される、請求項4に記載のパッケージ構造(10)。 - 前記金属相互接続(38)は、前記パッケージ構造(10)の前記外側に面する表面(18、20)上に、電気的接続を形成するめっきされた銅パワーオーバーレイ(POL)相互接続および熱拡散銅パッドを含み、そのようにして、前記パワー半導体デバイス(72)に対して電気的および熱的相互接続を提供する、請求項5に記載のパッケージ構造(10)。
- 前記パッケージ構造(10)の外側に面する表面(18、20)上に、および前記熱拡散銅パッドの上に付着される熱伝導材料(TIM)(82)をさらに含み、そのようにして前記パッケージ構造(10)をヒートシンクに接合することを可能にする、請求項6に記載のパッケージ構造(10)。
- 前記第1の誘電体層(14)の反対側の前記パッケージ構造(10)の外側に面する表面(18、20)に配置される第2の誘電体層(16)をさらに含み、前記誘電体シート(26)および前記少なくとも1つの半導体デバイス(12)は、前記第1の誘電体層(14)と前記第2の誘電体層(16)との間に配置され、前記第2の誘電体層(16)は、積層プロセスの間に流れない材料から構成される、請求項1乃至7のいずれかに記載のパッケージ構造(10)。
- 前記第1の誘電体層(14)の反対側の前記パッケージ構造(10)の外側に面する表面(18、20)に配置される銅箔(61)をさらに含み、前記誘電体シート(26)および前記少なくとも1つの半導体デバイス(12)は、前記第1の誘電体層(14)と前記銅箔(61)との間に配置される、請求項1乃至7のいずれかに記載のパッケージ構造(10)。
- 多層パッケージ構造を形成するように、前記パッケージ構造(10)の前記外側に面する表面(18、20)に付着される、PCBプリプレグ材料またはポリイミド材料のうちの1つの層と、
前記PCBプリプレグ材料またはポリイミド材料の前記層の各々を貫通し形成される複数のビア(30)と、
前記PCBプリプレグ材料またはポリイミド材料の前記層の前記複数のビア(30)に形成される金属相互接続(38)と、をさらに含む、請求項1乃至9のいずれかに記載のパッケージ構造(10)。 - 半導体デバイスパッケージ構造(10)を製造する方法であって、
少なくとも1つの半導体デバイス(12)を接着剤(22)で第1の誘電体層(14)に付着させるステップと、
硬化する際に溶解し流れるように構成される硬化材料の複数の誘電体シート(26)を形成するステップであって、前記複数の誘電体シート(26)の各々に前記少なくとも1つの半導体デバイス(12)を受け入れる開口が形成され、前記複数の誘電体シート(26)の各々は、硬化していないか、または部分的に硬化した状態であるステップと、
前記複数の誘電体シート(26)を、前記少なくとも1つの半導体デバイス(12)の周りに互いにスタックされて配置されるように、前記第1の誘電体層(14)上に付着させるステップと、
前記少なくとも1つの半導体デバイス(12)を受け取るための1つまたは複数の開口(28)を含むように非溶解材料の誘電体ウェブ構造(62)を形成するステップであって、前記誘電体ウェブ構造(62)は、前記誘電体シート(26)と比較して増加した剛性を有し、積層プロセスの間に流れないように構築され、前記誘電体ウェブ構造(62)は、プリント回路基板(PCB)コア材料、ポリイミド層、セラミック材料、およびこれらを組み合わせた材料のうちの1つから構成されるものである、ステップと、
前記第1の誘電体層(14)上に、および前記少なくとも1つの半導体デバイス(12)の周りに前記誘電体ウェブ構造(62)を配置するステップであって、前記複数の誘電体シート(26)は、前記少なくとも1つの半導体デバイス(12)と前記誘電体ウェブ構造(62)との間の任意のギャップにおける前記第1の誘電体層(14)上に互いにスタックされて配置される、前記ステップと、
前記最後の誘電体シート(26)の外側表面上に銅箔(61)を付着させるステップと、前記少なくとも1つの半導体デバイス(12)と前記誘電体ウェブ構造(62)との間の複数の誘電体シート(26)を含む前記複数の誘電体シート(26)を溶解して前記少なくとも1つの半導体デバイス(12)の周囲に存在する任意の空気ギャップに流れ込ませて、前記少なくとも1つの半導体デバイス(12)を埋め込むように、前記複数の誘電体シート(26)を硬化させるステップであって、前記第1の誘電体層(14)は、前記複数の誘電体シート(26)の前記硬化の間には流れないステップと、
前記少なくとも1つの半導体デバイス(12)に至る複数のビア(30)を形成するステップであって、前記複数のビア(30)は、前記第1の誘電体層(14)および前記複数の誘電体シート(26)の少なくとも1つに形成されるステップと、
前記第1の誘電体層(14)および前記誘電体シート(26)を貫通し延長する複数の貫通ビア(36)を形成するステップと、
前記複数のビア(30)に、および前記パッケージ構造(10)の1つまたは複数の外側表面の少なくとも一部の上に金属相互接続(38)を形成するステップであって、前記金属相互接続(38)は、前記少なくとも1つの半導体デバイス(12)に対する電気的相互接続を形成するステップと、
を含む、方法。 - 穿孔プロセスまたはスカイビングプロセスの1つにより、前記第1の誘電体層(14)に位置合せマーク(52)を形成するステップをさらに含み、前記第1の誘電体層(14)に前記少なくとも1つの半導体デバイス(12)を前記付着させるステップは、前記位置合せマーク(52)によりガイドされる、請求項11に記載の方法。
- 前記第1の誘電体層(14)は、予め金属化された誘電体層を含み、前記第1の誘電体層(14)は、その上に形成される剥離層(42)によって分離される第1および第2の銅層(40、48)を有し、
前記方法は、前記複数の誘電体シート(26)の前記硬化させるステップの後に、前記剥離層(42)によって前記第2の銅層(48)を除去するステップをさらに含む、請求項11または12に記載の方法。 - 前記誘電体ウェブ構造(62)は、前記金属相互接続(38)に接続される銅の回路を含む、請求項11に記載の方法。
- 前記複数の誘電体シート(26)は、硬化していないか、または部分的に硬化した状態の、プリプレグ材料、重合樹脂、または接着剤のうちの1つから構成される、請求項11乃至14のいずれかに記載の方法。
- 前記少なくとも1つの半導体デバイス(12)は、パワー半導体デバイス(72)を含み、
前記複数のビア(30)を形成するステップは、前記パワー半導体デバイス(72)の背面(34)に至るビア(30)を形成するステップを含み、金属相互接続(38)は、前記パワー半導体デバイス(72)の前記背面(34)に至る前記ビア(30)の各々に形成される、請求項11乃至15のいずれかに記載の方法。 - 前記パッケージ構造(10)の1つまたは複数の前記外側表面(18、20)にPCBプリプレグ材料またはポリイミド材料のいずれかの層を積層するステップと、
PCBコア材料またはポリイミド材料の前記層の各々に複数のビア(30)を形成するステップと、
PCBコア材料またはポリイミド材料の前記層の前記複数のビア(30)に金属相互接続(38)を形成するステップと、をさらに含む、請求項11乃至16のいずれかに記載の方法。 - 金属相互接続(38)を形成するステップは、前記パッケージ構造(10)を貫通し延長する金属相互接続(38)を形成するステップを含み、
前記金属相互接続(38)は、前記貫通ビア(36)に形成され、前記パッケージ構造(10)の前記外側表面(18、20)上へ出る、請求項11乃至17のいずれかに記載の方法。 - 少なくともその一部分に塗布された接着剤(22)を有する第1の誘電体層(14)と、
前記接着剤(22)により前記第1の誘電体層(14)に付着される1つまたは複数の半導体デバイス(12)であって、前記1つまたは複数の半導体デバイス(12)の各々の表面が前記第1の誘電体層(14)に付着されるコンタクトパッドをその上に有する、1つまたは複数の半導体デバイス(12)と、
前記1つまたは複数の半導体デバイス(12)を埋め込むように、前記1つまたは複数の半導体デバイス(12)の周りの前記第1の誘電体層(14)に配置される誘電体封入材(24)であって、前記1つまたは複数の半導体デバイス(12)の周囲に存在する任意の空気ギャップを埋めるように、誘電体シート(26)を含み、前記誘電体シート(26)の各々に前記少なくとも1つの半導体デバイス(12)を受け入れる開口が形成される、誘電体封入材(24)と、
前記1つまたは複数の半導体デバイス(12)に至るように形成される複数のビア(30)であって、前記第1の誘電体層(14)および前記誘電体封入材(24)の少なくとも一方に形成される複数のビア(30)と、
前記第1の誘電体層(14)および前記誘電体シート(26)を貫通し延長する複数の貫通ビア(36)と、
前記1つまたは複数の半導体デバイス(12)に対する全ての電気的および熱的相互接続を形成する前記複数のビア(30)において、ならびにPOLパッケージ構造(10)において形成されるPOL相互接続と、
前記第1の誘電体層(14)上に、および前記1つまたは複数の半導体デバイス(12)の周りに配置される誘電体ウェブ(62)であって、前記1つまたは複数の半導体デバイス(12)を受け取るために、それに形成される開口(28)を含む誘電体ウェブ(62)と、
を含み、
前記第1の誘電体層(14)は、前記誘電体シート(26)の積層プロセスの間に流れないように構成され、
前記誘電体ウェブ(62)は、前記少なくとも1つの半導体デバイス(12)の周りに付着された前記誘電体シート(26)を受け取り、前記誘電体シート(26)と比較して増加した剛性を有するように構築され、前記少なくとも1つの半導体デバイス(12)と前記誘電体ウェブ(62)との間の誘電体シート(26)を含む前記誘電体シート(26)が溶解され、誘電体封入材(24)を硬化させる処理を受ける際に、溶解しないかまたは流れない材料から構成され、
前記誘電体シート(26)は、プリプレグ材料、重合樹脂、または接着剤のうちの1つから構成される、パワーオーバーレイ(POL)パッケージ構造(10)。 - 前記第1の誘電体層(14)の反対側の前記パッケージ構造(10)の外側に面する表面(18、20)に配置され、前記誘電体シート(26)の積層プロセスの間に流れないように構成される第2の誘電体層(16)をさらに含み、前記誘電体封入材(24)および前記少なくとも1つの半導体デバイス(12)は、前記第1の誘電体層(14)と前記第2の誘電体層(16)との間に配置される、請求項19に記載のパワーオーバーレイ(POL)パッケージ構造(10)。
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TWI679737B (zh) | 2019-12-11 |
TW201907530A (zh) | 2019-02-16 |
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TW201523821A (zh) | 2015-06-16 |
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