JP2009200394A - 半導体装置の製造方法および半導体装置 - Google Patents
半導体装置の製造方法および半導体装置 Download PDFInfo
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- JP2009200394A JP2009200394A JP2008042695A JP2008042695A JP2009200394A JP 2009200394 A JP2009200394 A JP 2009200394A JP 2008042695 A JP2008042695 A JP 2008042695A JP 2008042695 A JP2008042695 A JP 2008042695A JP 2009200394 A JP2009200394 A JP 2009200394A
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Abstract
【解決手段】バンプ電極によりチップ1が外部との電気的接続を行う場合においても、ボンディングワイヤによりチップ1が外部との電気的接続を行う場合においても、1本の最上層の配線7にバンプ接続部15およびボンディングパッド16の両方を設ける。バンプ電極を用いる場合にはバンプ接続部15上の絶縁膜に開口部を設け、ボンディングパッド16上は絶縁膜で覆う。一方、ボンディングワイヤを用いる場合にはボンディングパッド16上の絶縁膜に開口部を設け、バンプ接続部15上は絶縁膜で覆う。
【選択図】図2
Description
(a)分割領域によって複数のチップ領域に区画された半導体基板上にて、前記複数のチップ領域の各々に集積回路を形成する工程、
(b)前記複数のチップ領域の各々内にて、第1回路領域から第2回路領域に延在し、前記集積回路と電気的に接続する第1配線を前記集積回路の上層に形成する工程、
(c)前記第1回路領域の前記第1配線の一部を第1パッドと規定し、前記第2回路領域の前記第1配線の一部を第2パッドと規定する工程、
(d)前記第1配線の存在下で前記半導体基板上に保護膜を形成する工程、
(e)前記第1パッド上または前記第2パッド上の前記保護膜に開口部を形成する工程、
(f)前記分割領域に沿って前記半導体基板を切断し、個々の半導体チップに分割する工程、
(g)前記半導体チップの各々を実装基板に実装し、ボンディングワイヤまたはバンプ電極を介して前記半導体チップの各々と前記実装基板とを電気的に接続する工程、
を含み、
前記(g)工程において、前記ボンディングワイヤを介して前記半導体チップの各々と前記実装基板とを電気的に接続する場合には、前記(e)工程において前記開口部は前記第1パッド上の前記保護膜に形成し、前記(g)工程において前記ボンディングワイヤを前記開口部下にて前記第1パッドに接続し、
前記(g)工程において、前記バンプ電極を介して前記半導体チップの各々と前記実装基板とを電気的に接続する場合には、前記(e)工程において、前記開口部は前記第2パッド上の前記保護膜に形成し、さらに前記開口部下にて前記第2パッドと接続する前記バンプ電極を前記第2パッド上に形成するものである。
主面に集積回路が形成され、外周に沿って複数配置された入出力回路を含む第1回路領域と、前記第1回路領域間に配置された第2回路領域とが規定された半導体チップと、
前記第2回路領域上に形成され、前記集積回路と電気的に接続するバンプ電極とを有するものである。
前記第1回路領域および前記第2回路領域よりも前記半導体チップの中心に近い第3回路領域が規定され、
前記第2回路領域および前記バンプ電極は、さらに前記第1回路領域と前記第3回路領域との間に配置され、
前記バンプ電極のうち、前記第1回路領域間の前記第2回路領域上の1つまたは隣り合う2つの前記バンプ電極と、前記第1回路領域と前記第3回路領域との間の前記第2回路領域上の1つまたは隣り合う2つの前記バンプ電極とが、正三角形の各頂点となるように前記バンプ電極が配置されているものである。
(1)ワイヤボンディングで実装されるチップとバンプ電極で実装されるチップとで、製造工程を共通化できる。
(2)半導体装置を小型化できる。
本実施の形態1の半導体装置は、たとえばBGA型の半導体装置であり、図1は、本実施の形態1の半導体装置に含まれるチップ1のレイアウトを説明する平面図である。また、図2は図1中の領域A1を拡大して示す要部平面図であり、図3および図4は図2中のA−A線に沿った断面を示し、図5および図6は図2中のB−B線に沿った断面を示し、図7および図8は図2中のC−C線に沿った断面を示し、図9および図10は図2中のD−D線に沿った断面を示している。また、図3および図4は外部接続用電極(バンプ電極あるいはボンディングワイヤ接続用のボンディングパッド)と信号用配線との接続状態を示し、図5〜図10は外部接続用電極と電源・GND(基準電位)用配線との接続状態を示し、図3〜図10中の太線矢印は電流経路を示している。図11は、図1中の領域A2にて形成された配線のレイアウト(平面)を示している。
図24は、本実施の形態2のチップ1の要部平面図であり、前記実施の形態1で示した図1中の領域A4に相当する領域を図示したものである。
1A 外周
2 半導体基板
3 半導体素子
4〜6 配線(第3配線)
7 配線(第1配線、第2配線)
7A プラグ
8〜10、10A 層間絶縁膜
11 絶縁膜(保護膜)
12 表面保護膜(保護膜)
13 バンプ電極
13A バンプ電極用下地膜
14 ボンディングワイヤ
15 バンプ接続部(第2パッド、第3パッド)
16 ボンディングパッド(第1パッド)
17 テスト用パッド
18 開口部
18A 開口位置
19 開口部
19A 開口位置
20 開口部
20A 開口位置
21 モジュール基板
22 RFチップ
23 バイパスコンデンサチップ
24 メモリチップ
A1 領域
A2 領域(第2回路領域)
A3 領域
A4 領域
A5 領域
A6 領域(第3回路領域)
AIO 入出力回路形成領域(第1回路領域)
IOC 入出力回路セル
LEC 回路セル
Claims (22)
- (a)分割領域によって複数のチップ領域に区画された半導体基板上にて、前記複数のチップ領域の各々に集積回路を形成する工程、
(b)前記複数のチップ領域の各々内にて、第1回路領域から第2回路領域に延在し、前記集積回路と電気的に接続する第1配線を前記集積回路の上層に形成する工程、
(c)前記第1回路領域の前記第1配線の一部を第1パッドと規定し、前記第2回路領域の前記第1配線の一部を第2パッドと規定する工程、
(d)前記第1配線の存在下で前記半導体基板上に保護膜を形成する工程、
(e)前記第1パッド上または前記第2パッド上の前記保護膜に開口部を形成する工程、
(f)前記分割領域に沿って前記半導体基板を切断し、個々の半導体チップに分割する工程、
(g)前記半導体チップの各々を実装基板に実装し、ボンディングワイヤまたはバンプ電極を介して前記半導体チップの各々と前記実装基板とを電気的に接続する工程、
を含み、
前記(g)工程において、前記ボンディングワイヤを介して前記半導体チップの各々と前記実装基板とを電気的に接続する場合には、前記(e)工程において前記開口部は前記第1パッド上の前記保護膜に形成し、前記(g)工程において前記ボンディングワイヤを前記開口部下にて前記第1パッドに接続し、
前記(g)工程において、前記バンプ電極を介して前記半導体チップの各々と前記実装基板とを電気的に接続する場合には、前記(e)工程において、前記開口部は前記第2パッド上の前記保護膜に形成し、さらに前記開口部下にて前記第2パッドと接続する前記バンプ電極を前記第2パッド上に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1記載の半導体装置の製造方法において、
前記第1配線は電源電位または基準電位と電気的に接続し、
前記半導体チップの各々は、前記バンプ電極を介して前記実装基板と電気的に接続し、
前記(b)工程では、前記第1配線が形成された第1配線層において、前記第1配線と電気的に接続し、互いに平行に延在するする複数の第2配線を形成し、
前記(c)工程では、前記第2配線の一部を第3パッドと規定し、
前記(e)工程では、前記第3パッド上の前記保護膜に前記開口部を形成し、さらに前記開口部下にて前記第3パッドと接続する前記バンプ電極を前記第3パッド上に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2記載の半導体装置の製造方法において、
前記(a)工程では、前記第1配線および前記第2配線と電気的に接続し、互いに平行に延在する複数の第3配線を前記第1配線層より下層の第2配線層にて形成し、
前記複数の第2配線および前記複数の第3配線は、前記半導体チップの中央を含む前記第2回路領域に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1記載の半導体装置の製造方法において、
前記半導体チップの各々は、前記バンプ電極を介して前記実装基板と電気的に接続し、
前記半導体チップ内にて、前記第2回路領域を、相対的に前記半導体チップの外周に近い前記第1回路領域と、前記第1回路領域および前記第2回路領域よりも前記半導体チップの内側の第3回路領域との間に配置することを特徴とする半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、
前記半導体チップの各々は、前記バンプ電極を介して前記実装基板と電気的に接続し、
入出力回路を含む前記第1回路領域を、前記半導体チップの外周に沿って複数配置し、
前記第2回路領域を、前記第1回路領域間に配置することを特徴とする半導体装置の製造方法。 - 請求項5記載の半導体装置の製造方法において、
前記バンプ電極下の前記第2回路領域にデジタル系回路またはESD対策用の半導体素子を含む第1回路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5記載の半導体装置の製造方法において、
前記第2回路領域を、前記第1回路領域と、前記第1回路領域および前記第2回路領域よりも前記半導体チップの中心に近い第3回路領域との間に配置し、
前記バンプ電極のうち、前記第1回路領域間の前記第2回路領域上の1つまたは隣り合う2つの前記バンプ電極と、前記第1回路領域と前記第3回路領域との間の前記第2回路領域上の1つまたは隣り合う2つの前記バンプ電極とが、正三角形の各頂点となるように前記バンプ電極を配置することを特徴とする半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、
前記第1パッドの数は、前記第2パッドの数よりも多いことを特徴とする半導体装置の製造方法。 - 請求項8の半導体装置の製造方法において、
前記(b)工程において、前記第1配線は複数形成し、
前記複数の前記第1配線の一部は、メモリチップとの間のインターフェースとなり、
前記実装基板に前記メモリチップを実装する場合には、前記(g)工程において、前記ボンディングワイヤを介して前記半導体チップの各々と前記実装基板とを電気的に接続し、前記インターフェースと前記メモリチップとを電気的に接続し、
前記実装基板に前記メモリチップを実装しない場合には、前記(g)工程において、前記バンプ電極を介して前記半導体チップの各々と前記実装基板とを電気的に接続し、前記(c)工程において、前記インターフェースには前記第2パッドを規定せず、前記(e)工程では前記インターフェースと接続する前記バンプ電極は形成しないことを特徴とする半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法において、
前記ボンディングワイヤを介して前記半導体チップの各々と前記実装基板とを電気的に接続する場合と、前記バンプ電極を介して前記半導体チップの各々と前記実装基板とを電気的に接続する場合とで、前記第1回路領域、前記第2回路領域、前記集積回路および前記第1配線は、同じレイアウトで形成することを特徴とする半導体装置の製造方法。 - 主面に集積回路が形成され、外周に沿って複数配置された入出力回路を含む第1回路領域と、前記第1回路領域間に配置された第2回路領域とが規定された半導体チップと、
前記第2回路領域上に形成され、前記集積回路と電気的に接続するバンプ電極とを有することを特徴とする半導体装置。 - 請求項11記載の半導体装置において、
前記バンプ電極下の前記第2回路領域にデジタル系回路またはESD対策用の半導体素子を含む第1回路が形成されていることを特徴とする半導体装置。 - 請求項11記載の半導体装置において、
前記第1回路領域および前記第2回路領域よりも前記半導体チップの中心に近い第3回路領域が規定され、
前記第2回路領域および前記バンプ電極は、さらに前記第1回路領域と前記第3回路領域との間に配置され、
前記バンプ電極のうち、前記第1回路領域間の前記第2回路領域上の1つまたは隣り合う2つの前記バンプ電極と、前記第1回路領域と前記第3回路領域との間の前記第2回路領域上の1つまたは隣り合う2つの前記バンプ電極とが、正三角形の各頂点となるように前記バンプ電極が配置されていることを特徴とする半導体装置。 - (a)半導体基板上に第1配線を形成する工程、
(b)前記第1配線上に、第1絶縁膜を形成する工程、
(c)前記第1絶縁膜に開口部を形成し、前記第1配線の一部を露出させる工程、
を有する半導体装置の製造方法であって、
前記(a)工程で、前記第1配線には、ボンディングワイヤが形成されるための複数の第1領域と、バンプ電極が形成されるための複数の第2領域とが形成されており、
前記(c)工程で、前記半導体装置に前記ボンディングワイヤを使用する場合には、前記開口部は前記複数の第1領域にそれぞれ形成され、且つ、前記複数の第2領域には形成されず、
前記(c)工程で、前記半導体装置に前記バンプ電極を使用する場合には、前記開口部は前記複数の第2領域にそれぞれ形成され、かつ、前記複数の第1領域には形成されないことを特徴とする半導体装置の製造方法。 - 請求項14記載の半導体装置の製造方法において、
前記複数の第1領域の数は、前記複数の第2領域の数よりも多いことを特徴とする半導体装置の製造方法。 - 請求項14記載の半導体装置の製造方法において、
前記複数の第1領域の下には、入出力回路用セルがそれぞれ形成されていることを特徴とする半導体装置の製造方法。 - 請求項16記載の半導体装置の製造方法において、
前記複数の第2領域のうちの一部は、隣接する入出力回路用セルの間に形成されていることを特徴とする半導体装置の製造方法。 - 請求項17記載の半導体装置の製造方法において、
前記隣接する入出力回路用セルの間に形成されている前記第2領域の下の前記半導体基板には、デジタル系回路またはESD対策用の半導体素子が形成されていることを特徴とする半導体装置の製造方法。 - (a)半導体基板上に形成された第1配線と、
(b)前記第1配線上に形成された第1絶縁膜と、
(c)前記第1絶縁膜に形成され、且つ、前記第1配線の一部を露出するように形成された複数の開口部と、
(d)前記複数の開口部内の第1配線上に、それぞれ形成されたバンプ電極と、
を有する半導体装置であって、
複数の前記バンプ電極は、前記半導体装置の1辺に沿うように2列に配置されており、
1列目のバンプ電極のうちの1つである第1バンプ電極と、2列目のバンプ電極のうち、前記第1バンプ電極に最も近い第2および第3バンプ電極とは、前記第1、第2および第3バンプ電極の中心を結んだ形状が正三角形となっていることを特徴とする半導体装置。 - 請求項19記載の半導体装置において、
前記1列目のバンプ電極のうち、前記半導体装置の1辺に沿う方向に隣接する2つのバンプ電極の間には、入出力回路用セルが形成されていることを特徴とする半導体装置。 - 請求項19記載の半導体装置において、
前記第1、第2および第3バンプ電極は、それぞれ別々の入出力回路用セルと電気的に接続されていることを特徴とする半導体装置。 - 請求項19記載の半導体装置において、
前記1列目のバンプ電極の下に、デジタル系回路またはESD対策用の半導体素子が形成されていることを特徴とする半導体装置。
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KR20160056379A (ko) | 2014-11-10 | 2016-05-20 | 삼성전자주식회사 | 트리플 패드 구조를 이용하는 칩 및 그것의 패키징 방법 |
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