JP6032823B2 - 半導体装置及びその製造方法 - Google Patents
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- H01L24/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
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- H01L2224/82—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected by forming build-up interconnects at chip-level, e.g. for high density interconnects [HDI]
- H01L2224/82001—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected by forming build-up interconnects at chip-level, e.g. for high density interconnects [HDI] involving a temporary auxiliary member not forming part of the bonding apparatus
- H01L2224/82005—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected by forming build-up interconnects at chip-level, e.g. for high density interconnects [HDI] involving a temporary auxiliary member not forming part of the bonding apparatus being a temporary or sacrificial substrate
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- H01L2224/92—Specific sequence of method steps
- H01L2224/922—Connecting different surfaces of the semiconductor or solid-state body with connectors of different types
- H01L2224/9222—Sequential connecting processes
- H01L2224/92242—Sequential connecting processes the first connecting process involving a layer connector
- H01L2224/92244—Sequential connecting processes the first connecting process involving a layer connector the second connecting process involving a build-up interconnect
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- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/20—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
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- H01L33/36—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes
- H01L33/38—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes with a particular shape
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Description
まず、図1及び図5を用いて本実施例1のLED素子11の構造と実装構造を説明する。LED素子11は、基材12上に、n型半導体層13、発光層14、p型半導体層15等を順に成膜して形成され、p型半導体層15上に透明電極16が形成されている。LED素子11の表面のうち、p側電極17及びn側電極18等に対する絶縁が必要な部分に絶縁保護膜19が形成されている。
LED素子11は、1枚のウエハ31(図8に一部分のみ図示)に碁盤目状に多数形成され、最終的に、1枚のウエハ31がカットラインでダイシングされて多数のLED素子11に分割される。ここでは、LED素子11の最小限の構成を例にして、製造プロセスを説明する。実際には、犠牲層、バッファ層、クラッド層、コンタクト層等の機能を持った層が複数存在するが、本発明は電極構造を目的とする形状に形成する技術思想であり、半導体製造プロセスは、電極構造とそれに関連する部分を除いて、公知技術と同様の方法を使用すれば良い。
イオン、X線によるマスク有り又はマスク無しのリソグラフィによるレジストマスク、メタルマスク、テープ等のマスクを使用する方法や、成膜範囲を直接制御する方法や、転写を使用しても良い。また、マスク無しで、一旦、LED素子11の表面全体に絶縁保護膜19を形成した後に、レジスト又はメタル等のマスクを使用するか、または、エッチング物の接触範囲を微小制御して、溶剤を用いたウェットエッチングや、電子、イオン、レーザ等を用いたドライエッチングや、機械での切削や研磨により絶縁保護膜19を部分的にエッチングして形成しても良い。
3,24の下地である樹脂スロープ22が左右対称の形状となって、樹脂スロープ22を形成するプロセスが容易となり、配線23,24の下地の段差を低減しやすくなる。これにより、配線23,24を成膜しやすくなり、成膜法で接続信頼性の高い配線23,24を形成できる。しかも、LED素子11の製造工程で、配線23,24の信頼性の対策を行うことができるため、LED素子11の製造と配線23,24の形成を総合的に考えて、無駄な工程や技術要求を減らすことができる。
本実施例2では、LED素子11のp側電極35とn側電極36を、それぞれLED素子11の側面に沿ってその下端まで一体に延びるように形成して回路基板21の電極部25,26に接触させるようにしている。具体的には、LED素子11の側面には、LED素子11の製造時にスルーホール37をダイシングにより半割りして形成された2本の半割り溝37aが形成され、該2本の半割り溝37aに絶縁保護膜38を介してp側電極35とn側電極36が各半割り溝37aの下端まで延びるように形成されている。
LED素子11は、1枚のウエハ31(図8に一部分のみ図示)に碁盤目状に多数形成され、最終的に、1枚のウエハ31がカットラインでダイシングされて多数のLED素子11に分割される。
割り溝37aが形成され、各半割り溝37aの内周面に絶縁保護膜38を介して各電極35,36が各半割り溝37aの下端まで延びるように形成される。
Claims (8)
- 搭載部材上に実装された半導体素子の上部側にp型半導体層とn型半導体層が形成された半導体装置において、
前記半導体素子は、前記p型半導体層が前記n型半導体層より高い位置に形成されていると共に、前記p型半導体層に導通するp側電極と前記n型半導体層に導通するn側電極とがほぼ同一高さで、且つ、前記p側電極が前記p型半導体層より低い位置に形成され、 前記半導体素子の前記p側電極及び前記n側電極と前記搭載部材の電極部との間を傾斜面でつなぐ樹脂スロープが形成され、
前記樹脂スロープ上に前記p側電極及び前記n側電極と前記搭載部材の電極部とを接続する配線が形成されていることを特徴とする半導体装置。 - 前記p側電極が前記n側電極とほぼ同一高さの位置まで延びるように形成されていることを特徴とする請求項1に記載の半導体装置。
- 搭載部材上に実装された半導体素子の上部側にp型半導体層とn型半導体層が形成された半導体装置において、
前記半導体素子は、前記p型半導体層が前記n型半導体層より高い位置に形成されていると共に、前記p型半導体層に導通するp側電極と前記n型半導体層に導通するn側電極とがほぼ同一高さで、且つ、前記p側電極が前記p型半導体層より低い位置に形成され、 前記半導体素子の前記p側電極と前記n側電極は、それぞれ前記半導体素子の側面に沿ってその下端まで一体に延びるように形成されて前記搭載部材の電極部に接触していることを特徴とする半導体装置。 - 前記半導体素子の側面には、該半導体素子の製造時にスルーホールをダイシングにより半割りして形成された2本の半割り溝が形成され、該2本の半割り溝に前記p側電極と前記n側電極が形成されていることを特徴とする請求項3に記載の半導体装置。
- 前記半導体素子は、発光素子であることを特徴とする請求項1乃至4のいずれかに記載の半導体装置。
- 前記p側電極と前記n側電極は、ワイヤボンディングのパッドの無い形状に形成されていることを特徴とする請求項1乃至5のいずれかに記載の半導体装置。
- 請求項1乃至6のいずれかに記載の半導体装置を製造する方法において、
前記半導体素子の表面のうち前記p側電極及び前記n側電極に対する絶縁が必要な部分に絶縁保護膜を形成した後、前記p側電極及び前記n側電極を形成することを特徴とする半導体装置の製造方法。 - 請求項4に記載の半導体装置を製造する方法において、
1枚のウエハに複数の半導体素子を形成すると共に、各半導体素子の間にスルーホールを形成し、前記半導体素子の表面及び前記スルーホールの内周面のうち前記p側電極及び前記n側電極に対する絶縁が必要な部分に絶縁保護膜を形成した後、前記p側電極及び前記n側電極を形成した上で、前記ウエハを前記スルーホールの中心線に沿ってダイシングして各半導体素子に分割することを特徴とする半導体装置の製造方法。
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US9437782B2 (en) * | 2014-06-18 | 2016-09-06 | X-Celeprint Limited | Micro assembled LED displays and lighting elements |
JP2017059752A (ja) * | 2015-09-18 | 2017-03-23 | 豊田合成株式会社 | 発光装置とその製造方法 |
CN109983392B (zh) * | 2016-12-09 | 2021-02-23 | 应用材料公司 | 准直led光场显示器 |
CN111509097B (zh) * | 2020-06-30 | 2020-10-20 | 华引芯(武汉)科技有限公司 | 一种大功率半导体发光器件及其制备方法 |
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JP3303154B2 (ja) * | 1994-09-30 | 2002-07-15 | ローム株式会社 | 半導体発光素子 |
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JP3641122B2 (ja) * | 1997-12-26 | 2005-04-20 | ローム株式会社 | 半導体発光素子、半導体発光モジュール、およびこれらの製造方法 |
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