JP2011210818A - 半導体構成体及び半導体構成体の製造方法 - Google Patents
半導体構成体及び半導体構成体の製造方法 Download PDFInfo
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Abstract
【解決手段】半導体ウエハ11と、半導体ウエハ11上の所定領域を囲むように形成された壁23と、半導体ウエハ11上の所定領域の外部に設けられた配線19と、配線19のランド上に設けられた外部接続用電極21と、前記壁23の外部に充填され、配線19を封止するとともに外部接続用電極21及び壁23と面一に設けられた封止樹脂22と、壁23の内部に充填され、所定領域を封止する透明樹脂26と、を備える半導体構成体1Bである。
【選択図】図2
Description
半導体ウエハと、
前記半導体ウエハ上の所定領域を囲むように形成された壁と、
前記半導体ウエハ上の前記所定領域の外部に設けられた配線と、
前記配線上に設けられた外部接続用電極と、
前記壁の外部に充填され、前記配線を封止する封止樹脂と、
前記壁の内部に充填され、前記所定領域を封止する透明樹脂と、
を備えることを特徴とする。
前記所定領域には、電子回路が設けられていることが好ましい。
前記壁及び前記外部接続用電極は、同一材料で形成されていることが好ましい。
前記壁及び前記外部接続用電極は、同じ高さに設定されていることが好ましい。
前記壁と前記半導体ウエハとの間には、保護絶縁膜が介在されていることが好ましい。
本発明の半導体構成体の製造方法において、
半導体ウエハ上の所定領域の外部に配置された配線層上に外部接続用電極を形成すると同時に、前記所定領域を囲む壁を形成し、
前記所定領域以外の上部空間を塞ぐ蓋を前記壁の上部に載置し、
前記所定領域を封止する透明樹脂を前記壁の内部に充填し、
前記蓋を除去し、
前記接続パッド及び前記配線を封止する封止樹脂を前記壁の外部に充填し、
前記透明樹脂とともに前記封止樹脂、前記外部接続用電極及び前記壁の上面を切削することを特徴とする。
半導体デバイスウエハ10は、図1に示すように、シリコン等からなる半導体基板(半導体ウエハ)11と、金属等の導電性材料からなる複数の接続パッド12と、酸化シリコンまたは窒化シリコン等の絶縁性材料からなる保護絶縁膜13と、等を備える。
また、保護絶縁膜13には、接続パッド12を露出させる開口13a、電子回路2を露出させる開口13bが設けられている。図1、図2に示すように、開口13aは接続パッド12よりも小さく、開口13bは電子回路2よりも大きい。
めっき層19は電解めっき用シード層16より厚く、例えば1μm〜15μmの厚さが好ましい。配線15における接続パッド12とは反対側の端部のランド上面には、銅等の導電性材料からなる柱状電極21が形成されている。柱状電極21の直径は50〜500μmである。柱状電極21の高さは45〜99μm程度であり、配線15の厚さと合わせて50〜100μm程度である。
次に、図5に示すように、電解めっき用シード層16上の配線層19を形成する領域を除き、配線レジスト17を形成する。
次に、図6に示すように、配線レジスト17が形成されていない部分に、電解めっき用シード層16を陰極とする電解めっきにより配線層19を堆積する。
その後、図7に示すように、配線レジスト17を除去する。
次に、図10に示すように、レジスト20を除去する。
なお、この時、配線層19、柱状電極21、壁層24の表面も電解めっき用シード層16の厚さと同程度にエッチングされるが、配線層19、柱状電極21、壁層24は電解めっき用シード層16と比較して充分に厚いため、影響はない。
次に、透明樹脂26が硬化した後、図17、図18に示すように、蓋25Bを除去する。
2 電子回路
10 半導体デバイスウエハ
11 半導体基板
12 接続パッド
13 保護絶縁膜
13a、13b、14a、14b、20a、20b、201 開口
14、214 絶縁膜
15 配線
16 電解めっき用シード層
17 配線レジスト
19、219 配線層
20 レジスト
21 柱状電極
22 封止樹脂
23 壁
25B 蓋
26 透明樹脂
200 基板
223 半田端子
Claims (6)
- 半導体ウエハと、
前記半導体ウエハ上の所定領域を囲むように形成された壁と、
前記半導体ウエハ上の前記所定領域の外部に設けられた配線と、
前記配線上に設けられた外部接続用電極と、
前記壁の外部に充填され、前記配線を封止する封止樹脂と、
前記壁の内部に充填され、前記所定領域を封止する透明樹脂と、
を備えることを特徴とする半導体構成体。 - 前記所定領域には、電子回路が設けられていることを特徴とする請求項1記載の半導体構成体。
- 前記壁及び前記外部接続用電極は、同一材料で形成されていることを特徴とする請求項1又は2に記載の半導体構成体。
- 前記壁及び前記外部接続用電極は、同じ高さに設定されていることを特徴とする請求項1〜3のいずれかに記載の半導体装置。
- 前記壁と前記半導体ウエハとの間には、保護絶縁膜が介在されていることを特徴とする請求項1〜4のいずれかに記載の半導体装置。
- 半導体ウエハ上の所定領域の外部に配置された配線層上に外部接続用電極を形成すると同時に、前記所定領域を囲む壁を形成し、
前記所定領域以外の上部空間を塞ぐ蓋を前記壁の上部に載置し、
前記所定領域を封止する透明樹脂を前記壁の内部に充填し、
前記蓋を除去し、
前記接続パッド及び前記配線を封止する封止樹脂を前記壁の外部に充填し、
前記透明樹脂とともに前記封止樹脂、前記外部接続用電極及び前記壁の上面を切削することを特徴とする半導体構成体の製造方法。
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US9024205B2 (en) | 2012-12-03 | 2015-05-05 | Invensas Corporation | Advanced device assembly structures and methods |
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