JP6471122B2 - 積層ダイのための応力隔離特徴 - Google Patents
積層ダイのための応力隔離特徴 Download PDFInfo
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- JP6471122B2 JP6471122B2 JP2016138368A JP2016138368A JP6471122B2 JP 6471122 B2 JP6471122 B2 JP 6471122B2 JP 2016138368 A JP2016138368 A JP 2016138368A JP 2016138368 A JP2016138368 A JP 2016138368A JP 6471122 B2 JP6471122 B2 JP 6471122B2
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- buffer layer
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Classifications
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Description
本出願は、2015年7月23日に出願された米国仮特許出願第62/196,154号の優先権を主張するものであり、全ての目的のために参照によりその全体が本明細書に組み込まれる。
(背景)
本願明細書は、例えば、以下の項目も提供する。
(項目1)
キャリアと、
上記キャリアに載置される集積デバイスダイと、
上記集積デバイスダイと上記キャリアとの間に配置される緩衝層であって、上記緩衝層は、上記キャリアと上記集積デバイスダイとの間の応力の伝達を低減するパターンを含み、上記パターンは、上記集積デバイスダイの一部と上記緩衝層の一部との間に間隙があるように画定される、緩衝層と、を備える、集積デバイスパッケージ。
(項目2)
上記緩衝層は、上記キャリアの外面の少なくとも一部をコーティングする、上記項目に記載のパッケージ。
(項目3)
上記緩衝層は、上記集積デバイスダイの少なくとも一部をコーティングする、上記項目のいずれかに記載のパッケージ。
(項目4)
上記キャリアは、さらなる集積デバイスダイを備える、上記項目のいずれかに記載のパッケージ。
(項目5)
上記緩衝層は、上記さらなる集積デバイスダイの外面の少なくとも一部をコーティングする、上記項目のいずれかに記載のパッケージ。
(項目6)
上記キャリアは、パッケージ基板を含む、上記項目のいずれかに記載のパッケージ。
(項目7)
上記パターンは、上記緩衝層の厚さを少なくとも部分的に通して形成される1つ以上の凹部領域を備え、上記間隙は、上記1つ以上の凹部領域と上記集積デバイスダイの一部との間に配置される、上記項目のいずれかに記載のパッケージ。
(項目8)
上記1つ以上の凹部領域は、上記緩衝層の上記厚さを部分的にのみ通して形成される、上記項目のいずれかに記載のパッケージ。
(項目9)
上記パターンは、上記キャリアの上記外面の基部領域と、上記集積デバイスダイに向かって上記基部領域から延在する1つ以上の突起と、を備え、上記1つ以上の突起は、上記集積デバイスダイの外面の全てより少ない部分を被覆する上記項目のいずれかに記載のパッケージ。
(項目10)
上記キャリアの上記外面上への上記1つ以上の突起の突出は、上記キャリアの上記外面の全てより少ない部分を被覆する、上記項目のいずれかに記載のパッケージ。
(項目11)
上記緩衝層は、ポリマーを含む、上記項目のいずれかに記載のパッケージ。
(項目12)
上記緩衝層は、ポリイミドを含む、上記項目のいずれかに記載のパッケージ。
(項目13)
上記緩衝層は、上記間隙が、上記集積デバイスダイの角領域と上記緩衝層との間に配置されるようにパターン形成される、上記項目のいずれかに記載のパッケージ。
(項目14)
上記集積デバイスダイは、微小電気機械システム(MEMS)デバイスダイを含む、上記項目のいずれかに記載のパッケージ。
(項目15)
上記MEMSダイは、ジャイロスコープダイまたは加速度計ダイを含む、上記項目のいずれかに記載のパッケージ。
(項目16)
上記キャリアは、プロセッサダイを含む、上記項目のいずれかに記載のパッケージ。
(項目17)
上記パターンは、十字状のパターンを含む、上記項目のいずれかに記載のパッケージ。
(項目18)
上記パターンは、上記集積デバイスダイを支持する1つ以上の突起と、上記突起から離間される1つ以上の堤部と、を備え、上記突起と上記堤部との間にチャネルを形成する、上記項目のいずれかに記載のパッケージ。
(項目19)
上記1つ以上の堤部は、上記1つ以上の突起より短い、上記項目のいずれかに記載のパッケージ。
(項目20)
上記パターンは、平面視から見たときに1つ以上の多角形を含む、上記項目のいずれかに記載のパッケージ。
(項目21)
上記パターンは、平面視から見たときに円形または楕円形を含む、上記項目のいずれかに記載のパッケージ。
(項目22)
上記緩衝層は、上記キャリアの上記外面の実質的に全体をコーティングする、上記項目のいずれかに記載のパッケージ。
(項目23)
パッケージ基板をさらに備え、上記キャリアは、上記パッケージ基板に載置される、上記項目のいずれかに記載のパッケージ。
(項目24)
上記パッケージ基板は、プラスチック基板を含む、上記項目のいずれかに記載のパッケージ。
(項目25)
上記パッケージ基板に載置されるパッケージ蓋をさらに備え、上記キャリアおよび上記集積デバイスダイが、上記パッケージ蓋および上記パッケージ基板によって画定される空洞内に配置される、上記項目のいずれかに記載のパッケージ。
(項目26)
上記緩衝層の厚さは、2ミクロン〜400ミクロンの範囲内にある、上記項目のいずれかに記載のパッケージ。
(項目27)
上記緩衝層の上記厚さは、35ミクロン〜300ミクロンの範囲内にある、上記項目のいずれかに記載のパッケージ。
(項目28)
上記キャリアの上記外面と上記緩衝層との間に不動態化層をさらに備え、上記緩衝層は、上記不動態化層上に直接堆積される、上記項目のいずれかに記載のパッケージ。
(項目29)
上記緩衝層は、上記キャリアの上記外面上にスピンコーティングされる、上記項目のいずれかに記載のパッケージ。
(項目30)
上記パターンは、上記緩衝層の少なくとも一部を通してエッチングされる、上記項目のいずれかに記載のパッケージ。
(項目31)
上記緩衝層は、上記キャリアの上記外面の少なくとも一部を被覆する第1の層を備え、上記パターンは、上記第1の層の上方に突起する、上記項目のいずれかに記載のパッケージ。
(項目32)
上記緩衝層は、上記集積デバイスダイの外面の10%〜90%と接触する、上記項目のいずれかに記載のパッケージ。
(項目33)
上記緩衝層は、上記集積デバイスダイの外面の10%〜40%と接触する、上記項目のいずれかに記載のパッケージ。
(項目34)
上記緩衝層は、上記集積デバイスダイの外面の10%〜30%と接触する、上記項目のいずれかに記載のパッケージ。
(項目35)
集積デバイスパッケージを製造する方法であって、
キャリアおよび集積デバイスのうちの1つの上に緩衝層を堆積することと、
上記緩衝層の厚さの少なくとも一部を通して上記緩衝層をパターン形成することと、
上記緩衝層が、上記キャリアと上記集積デバイスとの間に配置されるように、上記キャリア上に上記集積デバイスを載置することと、を含む、方法。
(項目36)
上記緩衝層を堆積することは、上記集積デバイス上に上記緩衝層を堆積することを含む、上記項目のいずれかに記載の方法。
(項目37)
上記緩衝層を堆積することは、上記キャリア上に上記緩衝層を堆積することを含み、上記キャリアは、パッケージ基板を含む、上記項目のいずれかに記載の方法。
(項目38)
上記緩衝層を堆積することは、上記キャリア上に上記緩衝層を堆積することを含み、上記キャリアは、さらなる集積デバイスを含む、上記項目のいずれかに記載の方法。
(項目39)
第1の複数の集積デバイスを備える第1のウェハ上に上記緩衝層を堆積することをさらに含み、上記第1の複数の集積デバイスは、上記さらなる集積デバイスを含む、上記項目のいずれかに記載の方法。
(項目40)
上記緩衝層が、上記第1のウェハと第2のウェハとの間に介在するように、上記第1のウェハ上に上記第2のウェハを積層することをさらに含み、上記第2のウェハは、第2の複数の集積デバイスを備え、上記第2の複数の集積デバイスは、上記集積デバイスを含む、上記項目のいずれかに記載の方法。
(項目41)
上記緩衝層を堆積することは、上記第1のウェハ上に上記緩衝層をスピンコーティングすることを含む、上記項目のいずれかに記載の方法。
(項目42)
上記第1のウェハ上に上記緩衝層の複数のスピンコーティングを塗布することをさらに含む、上記項目のいずれかに記載の方法。
(項目43)
上記緩衝層をエッチングして、1つ以上の台座部と、上記台座部から離間される1つ以上の堤部とを画定することをさらに含み、上記堤部は、上記台座部より短い、上記項目のいずれかに記載の方法。
(項目44)
上記緩衝層をパターン形成することは、上記緩衝層にフォトレジストを塗布し、上記フォトレジストをマスクし、光で上記フォトレジストを露光することを含む、上記項目のいずれかに記載の方法。
(項目45)
上記緩衝層をパターン形成することは、上記緩衝層をエッチングすることを含む、上記項目のいずれかに記載の方法。
(項目46)
少なくとも上記第1のウェハを個片化して、複数の集積デバイスダイを画定することをさらに含む、上記項目のいずれかに記載の方法。
(摘要)
集積デバイスパッケージが開示される。本パッケージは、第1の集積デバイスダイ、および第1の集積デバイスダイ上に堆積される第2の集積デバイスダイ等のキャリアを含み得る。本パッケージは、第1の集積デバイスダイの外面の少なくとも一部をコーティングし、第2の集積デバイスダイと第1の集積デバイスダイとの間に配置される緩衝層を含み得る。この緩衝層は、第1の集積デバイスダイと第2の集積デバイスダイとの間の応力の伝達を低減するパターンを含み得る。
Claims (41)
- キャリアと、
前記キャリアに載置される集積デバイスダイと、
前記集積デバイスダイと前記キャリアとの間に配置される緩衝層であって、前記緩衝層は、前記キャリアと前記集積デバイスダイとの間の応力の伝達を低減するパターンを含み、前記パターンは、前記集積デバイスダイの一部と前記緩衝層の一部との間に間隙があるように画定される、緩衝層と、を備え、
前記パターンは、前記集積デバイスダイを支持する1つ以上の突起と、前記突起から離間される1つ以上の堤部と、を備え、前記突起と前記堤部との間にチャネルを形成し、
前記1つ以上の堤部の厚さは、前記1つ以上の突起の厚さより薄い、集積デバイスパッケージ。 - 前記緩衝層は、前記キャリアの外面の少なくとも一部をコーティングする、請求項1に記載のパッケージ。
- 前記キャリアは、さらなる集積デバイスダイを備える、請求項1又は2に記載のパッケージ。
- 前記緩衝層は、前記さらなる集積デバイスダイの外面の少なくとも一部をコーティングする、請求項3に記載のパッケージ。
- 前記キャリアは、パッケージ基板を含む、請求項1又は2に記載のパッケージ。
- 前記パターンは、前記緩衝層の厚さを少なくとも部分的に通して形成される1つ以上の凹部領域を備え、前記間隙は、前記1つ以上の凹部領域と前記集積デバイスダイの一部との間に配置される、請求項1〜5のいずれか1項に記載のパッケージ。
- 前記1つ以上の凹部領域は、前記緩衝層の前記厚さを部分的にのみ通して形成される、請求項6に記載のパッケージ。
- 前記パターンは、前記キャリアの外面の基部領域と、前記集積デバイスダイに向かって前記基部領域から延在する1つ以上の突起と、を備え、前記1つ以上の突起は、前記集積デバイスダイの外面の全てより少ない部分を被覆する、請求項1〜7のいずれか1項に記載のパッケージ。
- 前記キャリアの前記外面上への前記1つ以上の突起の突出は、前記キャリアの前記外面の全てより少ない部分を被覆する、請求項8に記載のパッケージ。
- 前記緩衝層は、ポリマーを含む、請求項1〜9のいずれか1項に記載のパッケージ。
- 前記緩衝層は、ポリイミドを含む、請求項10に記載のパッケージ。
- 前記緩衝層は、前記間隙が、前記集積デバイスダイの角領域と前記緩衝層との間に配置されるようにパターン形成される、請求項1〜11のいずれか1項に記載のパッケージ。
- 前記集積デバイスダイは、微小電気機械システム(MEMS)デバイスダイを含む、請求項1〜12のいずれか1項に記載のパッケージ。
- 前記MEMSダイは、ジャイロスコープダイまたは加速度計ダイを含む、請求項13に記載のパッケージ。
- 前記キャリアは、プロセッサダイを含む、請求項1〜14のいずれか1項に記載のパッケージ。
- 前記パターンは、十字状のパターンを含む、請求項1〜15のいずれか1項に記載のパッケージ。
- 前記パターンは、平面視から見たときに1つ以上の多角形を含む、請求項1〜16のいずれか1項に記載のパッケージ。
- 前記パターンは、平面視から見たときに円形または楕円形を含む、請求項1〜17のいずれか1項に記載のパッケージ。
- 前記緩衝層は、前記キャリアの外面の実質的に全体をコーティングする、請求項1〜18のいずれか1項に記載のパッケージ。
- パッケージ基板をさらに備え、前記キャリアは、前記パッケージ基板に載置される、請求項1〜19のいずれか1項に記載のパッケージ。
- 前記パッケージ基板は、プラスチック基板を含む、請求項20に記載のパッケージ。
- 前記パッケージ基板に載置されるパッケージ蓋をさらに備え、前記キャリアおよび前記集積デバイスダイが、前記パッケージ蓋および前記パッケージ基板によって画定される空洞内に配置される、請求項20〜21のいずれか1項に記載のパッケージ。
- 前記緩衝層の厚さは、2ミクロン〜400ミクロンの範囲内にある、請求項1〜22のいずれか1項に記載のパッケージ。
- 前記緩衝層の前記厚さは、35ミクロン〜300ミクロンの範囲内にある、請求項23に記載のパッケージ。
- 前記キャリアの外面と前記緩衝層との間に不動態化層をさらに備え、前記緩衝層は、前記不動態化層上に直接堆積される、請求項1〜24のいずれか1項に記載のパッケージ。
- 前記緩衝層は、前記キャリアの外面上のコーティング層である、請求項1〜25のいずれか1項に記載のパッケージ。
- 前記緩衝層は、前記キャリアの外面の少なくとも一部を被覆する第1の層を備え、前記パターンは、前記第1の層の上方に突起する、請求項1〜26のいずれか1項に記載のパッケージ。
- 前記緩衝層は、前記集積デバイスダイの外面の10%〜90%と接触する、請求項1〜27のいずれか1項に記載のパッケージ。
- 前記緩衝層は、前記集積デバイスダイの外面の10%〜40%と接触する、請求項28に記載のパッケージ。
- 前記緩衝層は、前記集積デバイスダイの外面の10%〜30%と接触する、請求項29に記載のパッケージ。
- 集積デバイスパッケージを製造する方法であって、
キャリアおよび集積デバイスのうちの1つの上に緩衝層を堆積することと、
前記緩衝層の厚さの少なくとも一部を通して前記緩衝層をパターン形成することと、
前記緩衝層が、前記キャリアと前記集積デバイスとの間に配置されるように、前記キャリア上に前記集積デバイスを載置することと、
前記緩衝層をエッチングして、1つ以上の台座部と、前記台座部から離間される1つ以上の堤部とを画定することと、を含み、
前記堤部の厚さは、前記台座部の厚さより薄い、方法。 - 前記緩衝層を堆積することは、前記集積デバイス上に前記緩衝層を堆積することを含む、請求項31に記載の方法。
- 前記緩衝層を堆積することは、前記キャリア上に前記緩衝層を堆積することを含み、前記キャリアは、パッケージ基板を含む、請求項31に記載の方法。
- 前記緩衝層を堆積することは、前記キャリア上に前記緩衝層を堆積することを含み、前記キャリアは、さらなる集積デバイスを含む、請求項31に記載の方法。
- 第1の複数の集積デバイスを備える第1のウェハ上に前記緩衝層を堆積することをさらに含み、前記第1の複数の集積デバイスは、前記さらなる集積デバイスを含む、請求項34に記載の方法。
- 前記緩衝層が、前記第1のウェハと第2のウェハとの間に介在するように、前記第1のウェハ上に前記第2のウェハを積層することをさらに含み、前記第2のウェハは、第2の複数の集積デバイスを備え、前記第2の複数の集積デバイスは、前記集積デバイスを含む、請求項35に記載の方法。
- 前記緩衝層を堆積することは、前記第1のウェハ上に前記緩衝層をスピンコーティングすることを含む、請求項35〜36のいずれか1項に記載の方法。
- 前記第1のウェハ上に前記緩衝層の複数のスピンコーティングを塗布することをさらに含む、請求項37に記載の方法。
- 前記緩衝層をパターン形成することは、前記緩衝層にフォトレジストを塗布し、前記フォトレジストをマスクし、光で前記フォトレジストを露光することを含む、請求項31〜38のいずれか1項に記載の方法。
- 前記緩衝層をパターン形成することは、前記緩衝層をエッチングすることを含む、請求項31〜39のいずれか1項に記載の方法。
- 少なくとも前記第1のウェハを個片化して、複数の集積デバイスダイを画定することをさらに含む、請求項35〜38のいずれか1項に記載の方法。
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