JPS5917252A - 半導体装置の製造方法 - Google Patents

半導体装置の製造方法

Info

Publication number
JPS5917252A
JPS5917252A JP57125632A JP12563282A JPS5917252A JP S5917252 A JPS5917252 A JP S5917252A JP 57125632 A JP57125632 A JP 57125632A JP 12563282 A JP12563282 A JP 12563282A JP S5917252 A JPS5917252 A JP S5917252A
Authority
JP
Japan
Prior art keywords
aluminum
oxide film
aluminum oxide
semiconductor pellet
plasma
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57125632A
Other languages
English (en)
Inventor
Toru Yoshida
亨 吉田
Toshiharu Ishida
石田　寿治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57125632A priority Critical patent/JPS5917252A/ja
Publication of JPS5917252A publication Critical patent/JPS5917252A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/02—Bonding areas ; Manufacturing methods related thereto
    • H01L24/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L24/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104—Forming layers
    • H01L21/02107—Forming insulating materials on a substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/02—Bonding areas; Manufacturing methods related thereto
    • H01L2224/0212—Auxiliary members for bonding areas, e.g. spacers
    • H01L2224/02122—Auxiliary members for bonding areas, e.g. spacers being formed on the semiconductor or solid-state body
    • H01L2224/02163—Auxiliary members for bonding areas, e.g. spacers being formed on the semiconductor or solid-state body on the bonding area
    • H01L2224/02165—Reinforcing structures
    • H01L2224/02166—Collar structures
    • H—ELECTRICITY
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    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/02—Bonding areas; Manufacturing methods related thereto
    • H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/04042—Bonding areas specifically adapted for wire connectors, e.g. wirebond pads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H01L2224/45001—Core members of the connector
    • H01L2224/45099—Material
    • H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
    • H01L2224/45117—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
    • H01L2224/45124—Aluminium (Al) as principal constituent
    • H—ELECTRICITY
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    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • 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
    • H01L2224/48221—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 the body and the item being stacked
    • H01L2224/48245—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 the body and the item being stacked the item being metallic
    • H01L2224/48247—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 the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
    • H—ELECTRICITY
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    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/484—Connecting portions
    • H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
    • H01L2224/48465—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/485—Material
    • H01L2224/48505—Material at the bonding interface
    • H01L2224/48699—Principal constituent of the connecting portion of the wire connector being Aluminium (Al)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80—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
    • H01L2224/85—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 using a wire connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80—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
    • H01L2224/85—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 using a wire connector
    • H01L2224/85909—Post-treatment of the connector or wire bonding area
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01—Chemical elements
    • H01L2924/01013—Aluminum [Al]
    • H—ELECTRICITY
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    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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    • H01L2924/01—Chemical elements
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    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/181—Encapsulation

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明は耐湿性を向上させた半導体装置の製造方法に関
する。
一般に半導体ベレット上の配線材料としては、電気的性
能、経済性、加工性等の観点からアルミニウムが用いら
れているが、その最大の弱点は湿度による腐食である。
特に経済性の点から多く用いられている樹脂封止品にお
いては、外部からの水分の侵入によるアルミニウム腐食
が重要な問題となる。このため、第１図に示すように従
来半導体素子の電気的特性の安定化を図る目的とあわせ
て、アルミニウム配線膜１上にガラス絶縁保護膜２が施
されて来た。しかしこのガラス絶縁保護膜２は、半導体
ペレットと外部リードフレーム３との電気的接続を行う
ために、金属ワイヤ４による接続が必要であり、このた
め上記ガラス絶縁保護膜２は金属ワイヤ４の接続前にあ
らかじめ所定の領域が開口され、アルミニウム配線膜１
はポンディングパッド部５として一部露出する。上記ポ
ンディングパッド部５は金属ワイヤ４の接続によっても
完全に棟れることはない。また前記ガラス絶縁保護膜２
は完全無欠陥に製造することは困難であり、ピンホール
やクラックが存在し、アルミニウム配線膜１の一部が露
出する。従来の半導体装置の製造方法では、上記した様
にアルミニウムの一部が露出したまま刺止を行っていた
ので、侵入水分によるアルミニウム腐食不良が発生する
という欠点があった。
この様な従来方法の欠点を無くするために。
種々の提案が行われてきた。その主なものには陽極酸化
、高温純水中浸演、純水煮沸等によりアルミニウム表面
に酸化膜もしくは水酸化アルミニウムを形成させる方法
がある。しかし、これらはいずれもいわゆる”ｗｅｔ”
プロセスであり、半導体ペレット表面の汚染や、異物付
着が懸念されろという欠点があった。
本発明の目的は５判乙導体ベレ７ト上の露出したアルミ
ニウム表面に、“ｄｒｙ”プロセスによりアルミニウム
酸化被膜を形成する方法を提供することにある。
本発明は、半導体ペレットと、外部ＩＪ　−ｆｌ−Ｌ′
とを金属ワイヤで接続した後に、酸素プラズマにより、
半導体ベレット上のアルミニウムの露出部および、上記
金属ワイヤがアルミニウムの場合は、このアルミニウム
ワイヤの表面にアルミニウム酸化被膜を形成し、しかる
後に刺止を行うこと罠よって、耐湿信頼性を向上させる
よ５にしたことを特徴とする半導体装置の製造方法であ
る。
以下１、本発明の実施例を第２図に基づき説明する。ま
ず半導体ペレット上のポンディングパッド部５と外部リ
ードフレーム６とを金属ワイヤ４によって接続し、その
後酸素プラズマ中に所定の時間放置し、半導体ベレット
上のアルミニウム露出部にアルミニウム酸化被膜６を形
成する。しかる後に樹脂７で刺止する。
上記酸素プラズマの灸件（酸素流量、プラズマ発生パワ
ー、時間等）はプラズマ装置及び所望のアルミニウム酸
化被膜厚さによって適宜設定される。
尚、本実施例ではプラスチック樹脂でモールドされた場
合を示しているが、本発明はこれに限定されるものでは
ない。
本発明によれば、半導体ベレット上の露出したアルミニ
ウム上にアルミニウム酸化被膜を形成できるので、水分
によるアルミニウム腐食を阻止することができる。また
金属ワイヤがアルミニウムの場合は、アルミニウムワイ
ヤの表面にもアルミニウム酸化被膜が形成され、水分圧
よるアルミニウムワイヤ腐食を阻止することができる。
また本発明による方法は、”ｄｒｙ”プロセスであるた
め、半導体ペレットの汚染、異物付着を極力少な（する
ことができる。
【図面の簡単な説明】
第１図は従来の製造方法による半導体装置の縦断面図、
第２図は本発明の一実施例の製造方法を用いた半導体装
置の縦断面図である。 １・・・アルミニウム配線膜 ２・・・ガラス絶縁保護膜 ３・・・外部リードフレーム ４・・・金属ワイヤ ５・・・ポンディングパッド部 ６・・・アルミニウム酸化被膜 ７・・・樹脂 ８・・８ｉ酸化膜 ９・・・８皿 第１図 第２　図

Claims (1)

    【特許請求の範囲】
  1. １　半導体ペレット上のアルミニウムにより形成さ扛た
    ポンディングパッドと、外部リードフレームとを金属ワ
    イヤで接続した後、酸素プラズマにより、露出して（・
    るアルミニウム膜表面にアルミニウム酸化被膜を形成す
    ることを特徴とする半導体装置の製造方法。
JP57125632A 1982-07-21 1982-07-21 半導体装置の製造方法 Pending JPS5917252A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57125632A JPS5917252A (ja) 1982-07-21 1982-07-21 半導体装置の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57125632A JPS5917252A (ja) 1982-07-21 1982-07-21 半導体装置の製造方法

Publications (1)

Publication Number Publication Date
JPS5917252A true JPS5917252A (ja) 1984-01-28

Family

ID=14914845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57125632A Pending JPS5917252A (ja) 1982-07-21 1982-07-21 半導体装置の製造方法

Country Status (1)

Country Link
JP (1) JPS5917252A (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63229431A (ja) * 1987-03-18 1988-09-26 Hitachi Ltd 液晶表示パネル及びその製造方法
US7563144B2 (en) 2005-03-10 2009-07-21 Yamaichi Electronics Co., Ltd. Cartridge for contact terminals and semiconductor device socket provided with the same
US8656888B2 (en) 2011-07-28 2014-02-25 Pratt & Whitney Canada Corp. Rotary internal combustion engine with variable volumetric compression ratio
US8893684B2 (en) 2011-07-28 2014-11-25 Pratt & Whitney Canada Corp. Rotary internal combustion engine with exhaust purge
US9038594B2 (en) 2011-07-28 2015-05-26 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US9528434B1 (en) 2011-07-28 2016-12-27 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US10544732B2 (en) 2011-07-28 2020-01-28 Pratt & Whitney Canada Corp. Rotary internal combustion engine with removable subchamber insert
US10557407B2 (en) 2011-07-28 2020-02-11 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US10801394B2 (en) 2017-11-29 2020-10-13 Pratt & Whitney Canada Corp. Rotary engine with pilot subchambers
US11215110B2 (en) 2017-10-10 2022-01-04 Pratt & Whitney Canada Corp. Rotary engine and method of combusting fuel

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63229431A (ja) * 1987-03-18 1988-09-26 Hitachi Ltd 液晶表示パネル及びその製造方法
JPH0827461B2 (ja) * 1987-03-18 1996-03-21 株式会社日立製作所 液晶表示パネル及びその製造方法
US7563144B2 (en) 2005-03-10 2009-07-21 Yamaichi Electronics Co., Ltd. Cartridge for contact terminals and semiconductor device socket provided with the same
US9528434B1 (en) 2011-07-28 2016-12-27 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US8893684B2 (en) 2011-07-28 2014-11-25 Pratt & Whitney Canada Corp. Rotary internal combustion engine with exhaust purge
US9038594B2 (en) 2011-07-28 2015-05-26 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US8656888B2 (en) 2011-07-28 2014-02-25 Pratt & Whitney Canada Corp. Rotary internal combustion engine with variable volumetric compression ratio
US9540992B2 (en) 2011-07-28 2017-01-10 Pratt & Whitney Canada Corp. Rotary internal combustion engine with variable volumetric compression ratio
US10544732B2 (en) 2011-07-28 2020-01-28 Pratt & Whitney Canada Corp. Rotary internal combustion engine with removable subchamber insert
US10557407B2 (en) 2011-07-28 2020-02-11 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US10578012B2 (en) 2011-07-28 2020-03-03 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US10697365B2 (en) 2011-07-28 2020-06-30 Pratt & Whitney Canada Corp. Rotary internal combustion engine with pilot subchamber
US11215110B2 (en) 2017-10-10 2022-01-04 Pratt & Whitney Canada Corp. Rotary engine and method of combusting fuel
US10801394B2 (en) 2017-11-29 2020-10-13 Pratt & Whitney Canada Corp. Rotary engine with pilot subchambers

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