JP7332304B2 - 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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- JP7332304B2 JP7332304B2 JP2019024640A JP2019024640A JP7332304B2 JP 7332304 B2 JP7332304 B2 JP 7332304B2 JP 2019024640 A JP2019024640 A JP 2019024640A JP 2019024640 A JP2019024640 A JP 2019024640A JP 7332304 B2 JP7332304 B2 JP 7332304B2
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- metal
- metal layer
- barrier metal
- region
- electrode pad
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- H01L23/485—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 lead-in layers inseparably applied to the semiconductor body consisting of layered constructions comprising conductive layers and insulating layers, e.g. planar contacts
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Description
図9は、上記実施形態の変形例の構成例を示す断面図である。上記実施形態において、金属ボール80は、金属バンプ70上に直接接触するように設けられている。一方、本変形例では、拡散防止膜90が金属ボール80と金属バンプ70との間に設けられている。拡散防止膜90には、例えば、ニッケル等の導電性金属が用いられる。拡散防止膜90は、金属バンプ70と金属ボール80との間で銅またはスズが相互に拡散することを抑制する。本変形例のその他の構成は、上記実施形態の対応する構成と同様でよい。
図10(A)および図10(B)は、上記実施形態の変形例2の構成例を示す断面図である。変形例2では、金属バンプ70および金属ボール80は、半導体装置1の両側辺のみに設けられており、上記実施形態の金属バンプ70および金属ボール80よりも少ない。変形例2のその他の構成は、上記実施形態と同様でよい。半導体装置1は、このような形態であってもよい。
Claims (2)
- 基板の上方にある絶縁膜に電極パッドを形成し、
前記電極パッドおよび前記絶縁膜の表面上にバリアメタル層を形成し、
前記電極パッドの表面のうち金属バンプを形成する第1領域以外の領域および前記絶縁膜の表面を被覆する第1マスク材を形成し、
前記第1領域上に該金属バンプの材料を堆積し、
前記第1マスク材を除去した後、前記絶縁膜および前記バリアメタル層上に第2マスク材を形成し、
前記金属バンプの周囲における前記電極パッド上の第2領域にある前記第2マスク材を除去するように該第2マスク材を形成し、
前記バリアメタル層の表面および前記金属バンプの側面を酸化または水酸化し、
前記第2マスク材を除去した後、前記第1および第2領域以外の酸化または水酸化されていない前記バリアメタル層を選択的に除去することを具備する、半導体装置の製造方法。 - 前記金属バンプおよび前記バリアメタル層の酸化または水酸化は、酸素を含むガスでアッシング処理を行うことによって実行される、請求項1に記載の半導体装置の製造方法。
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TW108123069A TWI695473B (zh) | 2019-02-14 | 2019-07-01 | 半導體裝置及製造方法 |
CN201910604143.6A CN111564423B (zh) | 2019-02-14 | 2019-07-05 | 半导体装置及其制造方法 |
US16/552,166 US10964658B2 (en) | 2019-02-14 | 2019-08-27 | Semiconductor device having a metallic oxide or metallic hydroxide barrier layer |
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