JP2009182159A - 金属/樹脂接着構造体及び樹脂封止型半導体装置とその製造方法 - Google Patents
金属/樹脂接着構造体及び樹脂封止型半導体装置とその製造方法 Download PDFInfo
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- JP2009182159A JP2009182159A JP2008020045A JP2008020045A JP2009182159A JP 2009182159 A JP2009182159 A JP 2009182159A JP 2008020045 A JP2008020045 A JP 2008020045A JP 2008020045 A JP2008020045 A JP 2008020045A JP 2009182159 A JP2009182159 A JP 2009182159A
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- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
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- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
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Abstract
樹脂封止型半導体装置は、リードフレーム等の金属部材と封止樹脂の界面剥離が原因で、温度サイクル寿命が大幅に低下している。樹脂の剥離を防いで半導体装置の高信頼化を図る。
【解決手段】
半導体組立構造体にNiやCuと比較して酸素との結合力が強いZnやZrなどの金属種の有機金属化合物溶液を塗布し、酸化雰囲気中で加熱・焼成処理し、構造体の金属部材と封止樹脂の界面に厚さ5〜600nm程度で表面に微細な凹凸が形成された酸化物の皮膜を形成した構造とした。
【選択図】図1
Description
2,12 Niめっき
3,13 反応層
4 強酸化性金属の層
5,15 強酸化性金属の酸化物層
6,16 コート被膜
7,17 高分子樹脂
14 強酸化性金属の粒子
21 Cu部材
22 Cu酸化物層
23 Cu−Zn反応層
24 Zn酸化物の被膜
31 ダイパッド
32,33 リード部材
34 半導体デバイス
35 高鉛半田
36 Alワイヤボンディング
37 有機金属化合物溶液
38 焼成皮膜
39 封止樹脂
40,41 半田めっき
Claims (16)
- 金属部材と高分子樹脂の接着構造体において、
金属部材の表面に350℃以下の温度で分解する有機金属化合物を含む溶液を塗布する工程と、
酸化雰囲気中で有機金属化合物を加熱処理して金属酸化物を含む皮膜を金属部材表面に形成する工程と、
金属酸化物を含む皮膜の上に高分子樹脂を供給し、高分子樹脂を硬化処理して金属部材と高分子樹脂の接着構造を得る工程と、
を有することを特徴とする金属/樹脂接着構造体の製造方法。 - 請求項1において、金属酸化物を含む皮膜の上に高分子樹脂を塗布、あるいは、射出成形により供給することを特徴とする金属/樹脂接着構造体の製造方法。
- 請求項1において、前記溶液は、前記金属部材表面の金属種と異なる金属元素Mと、C,HあるいはC,H,Oから成る有機金属化合物と、前記有機金属化合物が可溶な有機溶剤あるいは水とで構成され、金属成分含有量が0.001〜1.0wt%の濃度範囲にあることを特徴とする金属/樹脂接着構造体の製造方法。
- 請求項3において、前記溶液を前記金属部材表面に塗布した後、酸化雰囲気中で150〜400℃の温度に加熱処理して前記金属元素Mの酸化物を主体とする皮膜を金属部材表面に形成することを特徴とする金属/樹脂接着構造体の製造方法。
- 請求項3において、前記溶液を前記金属部材に塗布する前に、金属部材の表面をUV照射やオゾンによるドライな化学的洗浄、あるいはAr又は酸素のプラズマによる物理的及び化学的洗浄、あるいは還元雰囲気中で200℃以上の加熱を加える方法で清浄化処理することを特徴とする金属/樹脂接着構造体の製造方法。
- 金属導体部を有する配線部材と、半導体デバイスと、前記配線部材と前記半導体デバイスとを電気的に結線する接続部材と、前記配線部材,半導体デバイス、及び、接続部材の少なくとも一部を覆うように形成された絶縁性の封止樹脂とを有する半導体装置の製造方法において、
第一配線部材の上に半導体デバイスをダイボンディングする工程と、
半導体デバイスの回路面の電極と第二配線部材とを電気的に接続する工程と、
前記第一及び第二配線部材,半導体デバイス、及び、接続部材が一体化された組立構造体に有機金属化合物を含む溶液を塗布し焼成処理を行う表面処理工程と、
表面処理した組立構造体に封止樹脂をトランスファーモールドする工程と、
を含むことを特徴とする樹脂封止型半導体装置の製造方法。 - 請求項6において、前記有機金属化合物がC,H,Oから成る有機分子と金属元素で構成され、C原子数が30以下である有機金属化合物であり、前記溶液の金属成分濃度が0.001〜1.0wt%であることを特徴とする樹脂封止型半導体装置の製造方法。
- 請求項6において、焼成処理を行う条件が酸化雰囲気中で150〜300℃の温度に加熱する表面処理方法であることを特徴とする樹脂封止型半導体装置の製造方法。
- 請求項6において、金属部材の表面をUV照射やオゾンによるドライな化学的洗浄、あるいはAr又は酸素のプラズマによる物理的及び化学的洗浄、あるいは還元雰囲気中で200℃以上の加熱を加える方法で清浄化処理を施した後に、前記組立構造体に有機金属化合物を含む溶液を塗布することを特徴とする樹脂封止型半導体装置の製造方法。
- 請求項6において、半導体組立構造体に有機金属化合物を塗布し酸化雰囲気中で加熱して焼成処理した後に、さらに水素を含む還元雰囲気中で加熱し還元処理を行う工程を加えたことを特徴とする樹脂封止型半導体装置の製造方法。
- 請求項6において、酸化雰囲気中で加熱する工程中に、紫外線照射を加えて焼成処理を行うことを特徴とする樹脂封止型半導体装置の製造方法。
- 金属部材と高分子樹脂の接着構造体において、
前記金属部材の最表面に形成された厚さ5〜500nmの金属酸化物を主体とする第1の層と、
前記金属部材と前記第1の層の間に形成された第1の層の金属種、あるいは、第1の層の金属種と金属部材最表面の金属種との合金または金属間化合物の層から成る第2の層とを有し、
前記第1の層の金属種が前記金属部材の最表面の金属種と比較して酸化物生成の自由エネルギーが低い関係になっていることを特徴とする金属/樹脂接着構造体。 - 金属導体部を有する配線部材と、半導体デバイスと、それらを電気的に結線する接続部材と、それら構成部材の少なくとも一部を覆うように形成された絶縁性の封止樹脂とで構成された半導体装置において、前記配線部材と半導体デバイスと接続部材とが一体化された組立構造体の金属部材表面および絶縁部材表面と封止樹脂との界面に、Zn,Zr,Al,Ti,V,Mn,Mgのいずれかの酸化物を主体とする皮膜が介在した構造を有していることを特徴する樹脂封止型半導体装置。
- 請求項13において、金属部材表面の前記酸化物を含む皮膜の構造が、樹脂側に酸化物を主体とする第一の皮膜が形成され、金属部材側に第一の皮膜を構成する金属種で構成された金属層あるいは第1の皮膜の金属種と金属部材表面の金属種で構成された合金層あるいは金属間化合物層からなる第2の皮膜が形成された多層膜構造となっていることを特徴とする樹脂封止型半導体装置。
- CuまたはCu合金からなるリードフレーム、あるいはその表面にNiめっき、あるいはさらにAgめっきを施したリードフレームであって、その最表面にZn,Zr,Ti,Alの中から選択された元素の酸化物を主体とする厚さ5〜500nm皮膜が形成されていることを特徴とするリードフレーム。
- セラミック絶縁基板にCuまたはAlパターンが形成され、その上にNiめっきが施された配線基板であって、Niめっき上にZn,Zr,Ti,Alの中から選択された元素の酸化物を主体とする厚さ5〜500nmの皮膜が形成されていることを特徴とするセラミック配線基板。
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US8252631B1 (en) * | 2011-04-28 | 2012-08-28 | Freescale Semiconductor, Inc. | Method and apparatus for integrated circuit packages using materials with low melting point |
CN102354670B (zh) * | 2011-10-13 | 2013-08-07 | 无锡世一电力机械设备有限公司 | 一种提高半导体封装可靠性的综合表面处理方法 |
CN107658220B (zh) * | 2017-08-21 | 2020-05-08 | 天津大学 | 一种功率半导体芯片正面铝层金属化方法 |
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DE102005061248B4 (de) * | 2005-12-20 | 2007-09-20 | Infineon Technologies Ag | Systemträger mit in Kunststoffmasse einzubettenden Oberflächen, Verfahren zur Herstellung eines Systemträgers und Verwendung einer Schicht als Haftvermittlerschicht |
JP2007266562A (ja) | 2006-03-03 | 2007-10-11 | Matsushita Electric Ind Co Ltd | 配線部材、樹脂付金属部品及び樹脂封止半導体装置、並びにこれらの製造方法 |
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JPS58202556A (ja) * | 1982-05-21 | 1983-11-25 | Hitachi Ltd | 半導体装置 |
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US9177833B2 (en) | 2012-03-01 | 2015-11-03 | Renesas Electronics Corporation | Semiconductor device and method of manufacturing the same |
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KR20240075132A (ko) * | 2022-11-21 | 2024-05-29 | 해성디에스 주식회사 | 리드 프레임 및 그 리드 프레임을 포함하는 반도체 패키지 |
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Also Published As
Publication number | Publication date |
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US7964975B2 (en) | 2011-06-21 |
US20110223720A1 (en) | 2011-09-15 |
JP4644718B2 (ja) | 2011-03-02 |
US8313983B2 (en) | 2012-11-20 |
US20090197375A1 (en) | 2009-08-06 |
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