JP5112972B2 - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
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- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
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- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
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- H01L2224/97—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips the devices being connected to a common substrate, e.g. interposer, said common substrate being separable into individual assemblies after connecting
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Description
本形態では、図1から図3を参照して、半導体装置10の構成および実装構造を説明する。
また、上記実施例では、2つの段差部から段差部30を構成しているが、3つ以上の段差部により段差部30を構成しても良い。
本形態では、第1の実施の形態にて構造を説明した半導体装置の製造方法を説明する。
本工程では、リードフレーム46を加工することにより、複数のユニット50を設ける。図4(A)はリードフレーム46全体を示す平面図であり、図4(B)は1つのユニット50を斜め上方から見た斜視図である。
本工程では、アイランド14の周辺部に対して複数回のプレス加工(コイニング加工)を行うことにより、複数の段差部をアイランド14の周辺端部に設ける。なお、ここで行われるプレス加工は、アイランド14等を成形する際の打ち抜き加工とは異なり、アイランド14の周辺部を異形とするための加工である。また、本工程のプレス加工は、アイランド14の対向する2つの側辺のみに対して行われても良いし、アイランド14の全ての側辺に対して行われても良い。
本工程では、アイランド14の上面に半導体素子18を実装して、半導体素子18とリードとを金属細線を用いて電気的に接続する。
本工程では、半導体素子18、アイランド14およびリード12が被覆されるように封止樹脂24を形成する。図9(A)は本工程を示す断面図であり、図9(B)は本工程が終了した後のリードフレーム46を示す平面図である。
図10を参照して、本実施の形態では、アイランド14の周辺部に段差部30を形成する他の方法を説明する。図10の各図は、この他の方法を示す断面図である。ここでは、アイランド14の上面に多段の溝状の段差部を形成し、この段差部が設けられた箇所にてアイランド14を切断することにより、アイランド14の周辺端部に複数の段差部を設けている。
12、12A、12B、12C リード
14 アイランド
14A 側面
16A、16B 金属細線
18 半導体素子
20 タブ
22 連結部
24 封止樹脂
26A、26B 接続部
28 接合材
30 段差部
32 第1段差部
32A 側面
32B 底面
34 第2段差部
34A 側面
34B 底面
36 突出部
38 段差部
40 実装基板
42 導電パターン
44 固着材
46 リードフレーム
48 外枠
50 ユニット
52 金型
54 傾斜面
56 金型
58 モールド金型
60 上金型
62 下金型
64 キャビティ
66 金型
68 第1段差部
70 金型
72 第2段差部
74 切断線
Claims (7)
- 半導体素子と、前記半導体素子が固着されるアイランドと、前記半導体素子と電気的に接続されるリードと、前記半導体素子、前記アイランドおよび前記リードを一体に被覆する封止樹脂とを具備し、
前記アイランドの周辺端部に、前記半導体素子の実装領域側に窪む複数の段差部を設け、
前記段差部は、第1段差部と、前記第1段差部よりも内側に設けられて前記アイランドの上面から連続する第2段差部とを含み、
前記第1段差部の底面と側面とが成す角は鋭角であり、前記第1の段差部の外側には、前記第1の段差部の底面から連続して厚み方向に突出する突出部が設けられることを特徴とする半導体装置。 - 前記段差部は、前記アイランドの4側辺に設けられることを特徴とする請求項1に記載の半導体装置。
- 前記リードの少なくとも1つは、前記アイランドから連続して外部に導出し、
前記段差部は、前記リードと前記アイランドとの接続部を除外した前記アイランドの周辺端部に設けられることを特徴とする請求項1または請求項2に記載の半導体装置。 - 前記アイランドの側面は傾斜面であることを特徴とする請求項1から請求項3の何れかに記載の半導体装置。
- 前記アイランドの裏面は前記封止樹脂から外部に露出することを特徴とする請求項1から請求項4の何れかに記載の半導体装置。
- アイランドおよび前記アイランドに一端が接近するリードが設けられたリードフレームを用意する工程と、
周辺端部を含む前記アイランドの周辺部に対して厚み方向にプレス加工を行うことにより、第1段差部を設け、前記第1段差部の側面を含む前記アイランドの周辺部に対して再びプレス加工を行うことにより、前記第1段差部よりも内側に第2段差部を設け、前記第1段差部の底面と側面とが成す角を鋭角にし、前記第1の段差部の外側に、前記第1の段差部の底面から連続して厚み方向に突出する突出部を設ける工程と、
半導体素子を前記アイランドに実装すると共に、前記半導体素子の電極と前記リードとを電気的に接続する工程と、
前記両段差部を含む前記アイランド、前記リードおよび前記半導体素子を封止樹脂で一体に被覆する工程と、を具備することを特徴とする半導体装置の製造方法。 - 前記第1段差部を設ける工程では、
前記アイランドの周辺端部に対応した領域に傾斜面を備えたプレス金型によりプレス加工を行うことで、前記突出部を形成することを特徴とする請求項6に記載の半導体装置の製造方法。
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JP5112972B2 true JP5112972B2 (ja) | 2013-01-09 |
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JP2013239658A (ja) * | 2012-05-17 | 2013-11-28 | Sumitomo Electric Ind Ltd | 半導体デバイス |
WO2023171505A1 (ja) * | 2022-03-11 | 2023-09-14 | 三菱電機株式会社 | 半導体装置及び半導体装置の製造方法 |
CN115939072B (zh) * | 2022-12-29 | 2023-10-20 | 佛山市蓝箭电子股份有限公司 | 一种半导体引线框架及半导体器件 |
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JPS5535809Y2 (ja) * | 1975-12-16 | 1980-08-23 | ||
JPS59164251U (ja) * | 1983-04-18 | 1984-11-02 | ロ−ム株式会社 | 半導体装置用リ−ドフレ−ム |
JPS6349242U (ja) * | 1986-09-16 | 1988-04-04 | ||
JPH1117088A (ja) * | 1997-06-26 | 1999-01-22 | Hitachi Cable Ltd | オーバハング成形加工方法 |
JPH1197611A (ja) * | 1997-09-22 | 1999-04-09 | Tokin Corp | 半導体装置用リードフレーム |
JP3664045B2 (ja) * | 2000-06-01 | 2005-06-22 | セイコーエプソン株式会社 | 半導体装置の製造方法 |
JP3871587B2 (ja) * | 2002-03-18 | 2007-01-24 | 日本インター株式会社 | 樹脂封止型半導体装置 |
JP4769965B2 (ja) * | 2006-07-28 | 2011-09-07 | オンセミコンダクター・トレーディング・リミテッド | 半導体装置およびその製造方法 |
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