JP2022145598A - 埋め込みパッケージ構造及びその製造方法 - Google Patents
埋め込みパッケージ構造及びその製造方法 Download PDFInfo
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- JP2022145598A JP2022145598A JP2022037734A JP2022037734A JP2022145598A JP 2022145598 A JP2022145598 A JP 2022145598A JP 2022037734 A JP2022037734 A JP 2022037734A JP 2022037734 A JP2022037734 A JP 2022037734A JP 2022145598 A JP2022145598 A JP 2022145598A
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- layer
- copper
- dielectric
- dielectric layer
- wiring layer
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Abstract
Description
(a)仮キャリアボードに第1配線層を形成し、前記第1配線層に第1誘電体層を積層し、前記第1誘電体層を薄くして上記第1配線層を露出させる工程、
(b)前記第1誘電体層に犠牲銅ピラーを含む第1銅ピラー層を形成し、前記第1銅ピラー層に第2誘電体層を積層し、前記第2誘電体層を薄くして前記第1銅ピラー層を露出させる工程、
(c)前記第1配線層と前記第2配線層とが前記第1銅ピラー層を介して導通接続されるように、前記第2誘電体層に第2配線層を形成する工程、
(d)前記第2配線層に第2銅ピラー層を形成する工程、
(e)前記犠牲銅ピラーをエッチングして、前記第1配線層のデバイスを露出する配置開口枠を形成する工程、
(f)前記仮キャリアボードを除去する工程。
いくつかの実施形態において、前記製造方法は、
(g)前記デバイスの配置開口枠の底部に第1デバイスを、第1デバイスの端子が第1配線層に導通接続されるように実装すること、
(h)前記第2配線層に第2デバイスを、前記第2デバイスの端子が前記第2配線層に導通接続されるように実装すること、
(i)前記第2銅ピラー層の端部に第3デバイスを、前記第3デバイスの端子が前記第2銅ピラー層に導通接続されるように実装すること
をさらに含む。
好ましくは、前記製造方法は、
(h')工程hの後且つ工程iの前に、誘電体材料を充填して、前記第1デバイス及び前記第2デバイスのプラスチックパッケージ層を覆うことをさらに含む。
好ましくは、前記製造方法は、
(i')工程iの後、誘電体材料を積層して、前記第3デバイスを覆うプラスチックパッケージ層を形成することをさらに含む。
(a1)前記仮キャリアボードに第1フォトレジスト層を施し、露光および現像して第1特徴パターンを形成すること、
(a2)前記第1特徴パターンにおいて、第1配線層をめっき形成し、前記第1フォトレジスト層を除去すること、
(a3)前記第1配線層に第1誘電体層を積層し、前記第1誘電体層を薄くして、前記第1配線層を露出させること
をさらに含む。
(b1)前記第1誘電体層に金属シード層を含むこと、
(b2)前記金属シード層に第2フォトレジスト層を施し、露光および現像して第2特徴パターンを形成すること、
(b3)前記第2特徴パターンにおいてエッチング保護層をめっき形成すること、
(b4)第3フォトレジスト層を施し、露光および現像して第3特徴パターンを形成すること、
(b5)前記第3特徴パターンにおいて、第1銅ピラー層及び前記エッチング保護層上の犠牲銅ピラーをめっき形成し、前記第2フォトレジスト層及び前記第3フォトレジスト層を除去すること、
(b6)前記第1特征層及び前記犠牲銅ピラーに第2誘電体層を積層し、前記第2誘電体層を薄くして、前記第1特征層及び前記犠牲銅ピラーを露出させること
をさらに含む。
(c1)前記第2誘電体層に金属シード層を形成すること、
(c2)前記金属シード層に第4フォトレジスト層を施し、露光および現像して第4特徴パターンを形成すること、
(c3)前記第4特徴パターンにおいて、銅をめっきして第2配線層を形成し、前記第4フォトレジスト層を除去すること
をさらに含む。
いくつかの実施形態において、工程(d)は、
(d1)前記第2配線層に第5フォトレジスト層を施し、露光および現像して第5特徴パターンを形成すること、
(d2)前記第5特徴パターンにおいて、銅をめっきして第2銅ピラー層を形成すること、
(d3)前記第5フォトレジスト層を除去し、露出した前記金属シード層をエッチングすること
を含む。
(d1)前記第2配線層に第6フォトレジスト層を施し、露光および現像して第6特徴パターンを形成すること、
(d2)前記第6特徴パターンにおいて、前記犠牲銅ピラー及前記エッチング保護層をエッチングして、デバイス配置開口枠を形成すること
をさらに含む。
いくつかの実施形態において、前記製造方法は、工程fの前記仮キャリアボードを除去した後、前記第1誘電体層の底面にソルダーレジスト層を施し、露出した金属を表面処理してソルダーレジスト開窓を形成することをさらに含む。
図面を具体的に参照する時、特定の図は、例示的なものであり、本発明の好ましい実施形態を例示的に説明することのみを目的とし、且つ本発明のメカニズム及び概念に対する説明に最も有用で、且つ、最も容易に理解されると考えられる図を提供する理由に基づいて提示されていることを強調しなければならない。この点に関して、本発明の基本的な理解に必要な程度以上の詳細度で本発明の構造の詳細を、図示することは意図されていない。図面を参照した説明は、当業者に、本発明の幾つかの形態がどのように実際に具現化され得るかを認識させる。図面において、
金属シード層1031に第4フォトレジスト層1034を施し、露光および現像して第4特徴パターンを形成する工程、
パターンにおいて、銅をめっきして第2配線層1032を形成する工程。
パターンにおいて、銅をめっきして第2銅ピラー層1033を形成する工程、
第4フォトレジスト層1034及第5フォトレジスト層を除去し、露出した金属シード層1031をエッチングする工程。
101:第1誘電体層
1011a:PP(プリプレグ)層
1011b:第1銅層
1011c:第2銅層
1011d:保護層
1012:第1フォトレジスト層
1013:第1配線層
102:第2誘電体層
1020:金属シード層
1021:第2フォトレジスト層
1022:エッチング保護層
1023:第3フォトレジスト層
1024:第1ビア柱
1024:第1銅ピラー層
1025:犠牲銅ピラー
1026:デバイス配置開口枠
103:第3誘電体層
1031:金属シード層
1032:第2配線層
1033:第2ビア柱
1033:第2銅ピラー層
1034:第4フォトレジスト層
1036:第6フォトレジスト層
104:第4誘電体層
1051:第1デバイス
1052:第2デバイス
1053:第3デバイス
106:ソルダーレジスト層
106:第2表面にソルダーレジスト層
1061:ソルダーレジスト開窓
200:埋め込みパッケージ構造
300:パッケージ構造
400:埋め込みパッケージ構造
Claims (22)
- 第1誘電体層及び前記第1誘電体層上の第2誘電体層を含み、前記第1誘電体層は第1配線層を含み、前記第2誘電体層は前記第2誘電体層を高さ方向に貫通する第1銅ピラー層及びデバイス配置開口枠ならびに前記第1銅ピラー層上の第2配線層を含み、前記第2配線層には第2銅ピラー層が設けられ、前記第1配線層と前記第2配線層とは、前記第1銅ピラー層を介して導通接続されている多層埋め込みパッケージ構造であって、前記デバイス配置開口枠の底部に第1デバイスは、前記第1デバイスの端子が前記第1配線層に導通接続されるように実装され、前記第2誘電体層に第2デバイスは、前記第2デバイスの端子が前記第2配線層に導通接続されるように実装され、前記第2銅ピラー層の端部に第3デバイスは、前記第3デバイスの端子が前記第2銅ピラー層に導通接続されるように実装されている、多層埋め込みパッケージ構造。
- 前記第1デバイス及び第2デバイスと前記パッケージ構造との間の空隙には、誘電体材料が充填されている、請求項1に記載の多層埋め込みパッケージ構造。
- 前記第1誘電体層及び前記第2誘電体層は、有機誘電体材料、無機誘電体材料又はこれらの組み合わせを含む、請求項1に記載の多層埋め込みパッケージ構造。
- 前記第1誘電体層及び前記第2誘電体層は、ポリイミド、エポキシ樹脂、ビスマレイミドトリアジン樹脂、セラミックフィラー、ガラス繊維、又はこれらの組み合わせを含む、請求項3に記載の多層埋め込みパッケージ構造。
- 前記第3デバイスにプラスチックパッケージ層が覆われている、請求項1に記載の多層埋め込みパッケージ構造。
- 前記第1デバイス及び前記第2デバイスは、前記第2デバイスの端子と前記第1デバイスの端子と導通接続され、前記第2デバイスの端子と前記第3デバイスの端子と導通接続されるように、両面端子を有するデバイスを含む、請求項1に記載の多層埋め込みパッケージ構造。
- 前記第1、第2、及び第3デバイスは、それぞれ少なくとも1つのデバイスを含む、請求項1に記載の多層埋め込みパッケージ構造。
- 前記第1誘電体層の底面にソルダーレジスト層及びソルダーレジスト開窓が設けられている、請求項1に記載の多層埋め込みパッケージ構造。
- 下記の工程を含む、多層埋め込みパッケージ構造の製造方法。
(a)仮キャリアボードに第1配線層を形成し、前記第1配線層に第1誘電体層を積層し、前記第1誘電体層を薄くして上記第1配線層を露出させる工程、
(b)前記第1誘電体層に犠牲銅ピラーを含む第1銅ピラー層を形成し、前記第1銅ピラー層に第2誘電体層を積層し、前記第2誘電体層を薄くして前記第1銅ピラー層を露出させる工程、
(c)前記第1配線層と前記第2配線層とが前記第1銅ピラー層を介して導通接続されるように、前記第2誘電体層に第2配線層を形成する工程、
(d)前記第2配線層に第2銅ピラー層を形成する工程、
(e)前記犠牲銅ピラーをエッチングして、前記第1配線層のデバイスを露出する配置開口枠を形成する工程、
(f)前記仮キャリアボードを除去する工程。 - (g)前記デバイスの配置開口枠の底部に第1デバイスを、第1デバイスの端子が第1配線層に導通接続されるように実装すること、
(h)前記第2配線層に第2デバイスを、前記第2デバイスの端子が前記第2配線層に導通接続されるように実装すること、
(i)前記第2銅ピラー層の端部に第3デバイスを、前記第3デバイスの端子が前記第2銅ピラー層に導通接続されるように実装すること、
をさらに含む、請求項9に記載の製造方法。 - (h')工程hの後、且つ工程iの前に、誘電体材料を充填して、前記第1デバイス及び前記第2デバイスを覆うことをさらに含む、請求項10に記載の製造方法。
- (i')工程iの後、誘電体材料を積層して、前記第3デバイスを覆うプラスチックパッケージ層を形成することをさらに含む、請求項10に記載の製造方法。
- 工程(a)は、
(a1)前記仮キャリアボードに第1フォトレジスト層を施し、露光および現像して第1特徴パターンを形成すること、
(a2)前記第1特徴パターンにおいて、第1配線層をめっき形成し、前記第1フォトレジスト層を除去すること、
(a3)前記第1配線層に第1誘電体層を積層し、前記第1誘電体層を薄くして、前記第1配線層を露出させること
を含む、請求項9に記載の製造方法。 - 前記仮キャリアボードは、両面銅張板を含み、前記両面銅張板は、プリプレグ、前記プリプレグ表面上の第1銅層及び前記第1銅層上の第2銅層を含み、前記第1銅層と前記第2銅層とは、物理的な圧着により一緒なるように付着されている、請求項9に記載の製造方法。
- 工程(b)は、
(b1)前記第1誘電体層に金属シード層を形成すること、
(b2)前記第1誘電体層の金属シード層に第2フォトレジスト層を施し、露光および現像して第2特徴パターンを形成すること、
(b3)前記第2特徴パターンにおいてエッチング保護層をめっき形成すること、
(b4)第3フォトレジスト層を施し、露光および現像して第3特徴パターンを形成すること、
(b5)前記第3特徴パターンにおいて、第1銅ピラー層及び前記エッチング保護層上の犠牲銅ピラーをめっき形成し、前記第2フォトレジスト層及び前記第3フォトレジスト層を除去すること、
(b6)前記第1特征層及び前記犠牲銅ピラーに第2誘電体層を積層し、前記第2誘電体層を薄くして、前記第1特征層及び前記犠牲銅ピラーを露出させること
を含む、請求項9に記載の製造方法。 - 前記エッチング保護層は、ニッケル、チタン又はこれらの組み合わせを含む、請求項15に記載の製造方法。
- 工程(c)は、
(c1)前記第2誘電体層に金属シード層を形成すること、
(c2)前記第2誘電体層の金属シード層に第4フォトレジスト層を施し、露光および現像して第4特徴パターンを形成すること、
(c3)前記第4特徴パターンにおいて、銅をめっきして第2配線層を形成し、前記第4フォトレジスト層を除去すること
を含む、請求項9に記載の製造方法。 - 工程(d)は、
(d1)前記第2配線層に第5フォトレジスト層を施し、露光および現像して第5特徴パターンを形成すること、
(d2)前記第5特徴パターンにおいて、銅をめっきして第2銅ピラー層を形成すること、
(d3)前記第5フォトレジスト層を除去し、露出した前記金属シード層をエッチングすること
を含む、請求項9に記載の製造方法。 - 前記金属シード層は、チタン、銅、チタンタングステン合金又はこれらの組み合わせを含む、請求項15又は17に記載の製造方法。
- 工程(d)は、
(d1)前記第2配線層に第6フォトレジスト層を施し、露光および現像して第6特徴パターンを形成すること、
(d2)前記第6特徴パターンにおいて、前記犠牲銅ピラー及前記エッチング保護層をエッチングして、デバイス配置開口枠を形成すること
を含む、請求項9に記載の製造方法。 - 工程(e)は、前記第1銅層及び前記第2銅層を物理的に分離し、前記第2銅層をエッチングして、前記両面銅張板を除去することを含む、請求項14に記載の製造方法。
- 工程fにおいて前記仮キャリアボードを除去した後、前記第1誘電体層の底面にソルダーレジスト層を施し、露出した金属を表面処理してソルダーレジスト開窓を形成することをさらに含む、請求項9に記載の製造方法。
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