JPS6244690B2 - - Google Patents

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Publication number
JPS6244690B2
JPS6244690B2 JP54168378A JP16837879A JPS6244690B2 JP S6244690 B2 JPS6244690 B2 JP S6244690B2 JP 54168378 A JP54168378 A JP 54168378A JP 16837879 A JP16837879 A JP 16837879A JP S6244690 B2 JPS6244690 B2 JP S6244690B2
Authority
JP
Japan
Prior art keywords
membrane
film
resin
semiconductor device
protective
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.)
Expired
Application number
JP54168378A
Other languages
English (en)
Other versions
JPS5691453A (en
Inventor
Takeo Yoshimi
Hideo Sakai
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 JP16837879A priority Critical patent/JPS5691453A/ja
Publication of JPS5691453A publication Critical patent/JPS5691453A/ja
Publication of JPS6244690B2 publication Critical patent/JPS6244690B2/ja
Granted legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/28Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
    • H01L23/31Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
    • H01L23/3157Partial encapsulation or coating
    • H01L23/3171Partial encapsulation or coating the coating being directly applied to the semiconductor body, e.g. passivation layer
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/28Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
    • H01L23/31Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
    • H01L23/3157Partial encapsulation or coating
    • H01L23/3192Multilayer coating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/02Bonding areas ; Manufacturing methods related thereto
    • H01L24/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L24/05Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/0212Auxiliary members for bonding areas, e.g. spacers
    • H01L2224/02122Auxiliary members for bonding areas, e.g. spacers being formed on the semiconductor or solid-state body
    • H01L2224/02163Auxiliary members for bonding areas, e.g. spacers being formed on the semiconductor or solid-state body on the bonding area
    • H01L2224/02165Reinforcing structures
    • H01L2224/02166Collar structures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/023Redistribution layers [RDL] for bonding areas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/04042Bonding areas specifically adapted for wire connectors, e.g. wirebond pads
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/05Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/05Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554External layer
    • H01L2224/0555Shape
    • H01L2224/05556Shape in side view
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805Shape
    • H01L2224/4809Loop shape
    • H01L2224/48091Arched
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting 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
    • H01L2224/48221Connecting 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
    • H01L2224/48245Connecting 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
    • H01L2224/48247Connecting 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01013Aluminum [Al]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01033Arsenic [As]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/181Encapsulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Formation Of Insulating Films (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)

Description

【発明の詳細な説明】 本発明は半導体装、具体的には樹脂モールド半
導体装置に関する。
樹脂モールドにより封止されたトランジスタ、
IC等においては、半導体チツプの最終保護膜と
してプラズマ放電を利用した気相化学反応析出法
(以下プラズマCVDと称する)により生成された
シリコン窒化物(SixNy、一般にSi3N4)等の窒化
膜やポリイミド系樹脂膜等が用いられている。こ
れら窒化膜等はチツプ上のアルミニウム電極−配
線に対する保護効果は極めて優れているが、樹脂
モールド製品の場合、樹脂と窒化膜等との間の接
着性がわるいためこの間に水分等が滞留し、保護
膜のわずかな隙間より水分が浸入して半導体装置
の電気的特性を劣化させる原因となることで問題
となつていた。
本発明は上記した問題点を解消するためになさ
れたものであり、その目的は保護膜とモールドす
る樹脂との接着性を良くし半導体装置の信頼性を
高めることにある。
上記目的を達成するための本発明の第1の要旨
は、半導体チツプの表面にプラズマCVD法によ
るシリコン窒化膜が形成され、上記プラズマ
CVD法によるシリコン窒化膜の表面に酸化物膜
又は酸素を含んだ絶縁膜を介してモールド樹脂体
が形成されていることを特徴とする半導体装置に
ある。又、第2の要旨は、半導体チツプの表面に
ポリイミド系樹脂膜が形成され、上記ポリイミド
系樹脂膜の表面に酸化物膜又は酸素を含んだ絶縁
膜を介してモールド樹脂体が形成されていること
を特徴とする半導体装置にある。さらに、第3の
要旨は、半導体チツプの表面にポリイミド系樹脂
膜を形成する工程、このポリイミド系樹脂膜の表
面にCVD法による酸化膜を形成する工程、前記
工程後樹脂モールドによる封止を行う工程を有す
ることを特徴とする半導体装置の製造法にある。
図面は本発明による樹脂封止半導体装置の原理
的構造を模型的に示すものである。同図において
1はSi(シリコン)結晶よりなる基体(チツ
プ)、2はSi基体とpn接合をつくる不純物拡散
層、3は表面熱酸化膜、4はCVD・PSG(リン
シリケートガラス)膜、5はAl(アルミニウ
ム)電極−配線、6は最終パツシベイシヨンとな
るプラズマ・ナイトライド(窒化物)膜、7はナ
イトライド膜の表面に薄く形成した酸化物、例え
ばオキシナイトライドであり、この上にレジン
(例えばエポキシ系樹脂)8がモールドされる。
上記プラズマナイトライド膜6の厚さは例えば
3000Åから1.5μmとし、オキシナイトライド膜
7の厚さは200〜2000Å程度とする。
上記オキシナイトライドはSixNyOzで表わさ
れ、シリコン酸化物(SiO2)とシリコンナイトラ
イド(SiN)の中間の構造を有し、性質はSiO2
近く、樹脂(例えばエポキシ系、シリコーン系)
に対し接着性が良い。
第2図a〜dは本発明による半導体装置の製造
プロセスにおける封止工程を示す。
(a) 半導体基体(ウエハ)1表面にAl電極5、
最終パツシベイシヨンとしてのプラズマ・ナイ
トライド膜6を形成する。
(b) ナイトライド膜の表面に酸化膜7を形成す
る。
(c) ナイトライド膜をエツチ窓開してAl電極の
端子(バツドを露出し、ウエハをペレツトに分
割してリードフレーム9上にペレツトボンデイ
ングするとともにAl電極5とリードとの間を
金属ワイヤ10によるワイヤボンデイングす
る。
(d) 樹脂モールド体8により、リードの一部を出
して封止、完成する。
表面酸化膜の形成法としては、下記のいくつか
の実施例を挙げることができる。
(1) プラズマ・CVD法によりナイトライド膜を
形成後、それに引きつづいて400℃以下でO2
(酸素)プラズマによる酸化を下記の反応式の
ように行なう。
SixNy+O2→Six′Ny′Oz (2) ナイトライド膜形成後、最後に生成ガス(例
えばSiH4−NH3)に微量のO2あるいはN2O、
CO2などのOを含んだガスを混入して下記の反
応式のようにオキシナイトライドを形成する。
SiH4+NH3+O2→SixNyO (3) ナイトライド膜を形成した上にCVD・SiO2
をデポジシヨンする。
上記した方法によりナイトライド膜表面に200
〜2000Åの厚さで酸化膜を形成することができ、
この酸化膜の介在により樹脂モールドの際に保護
膜(ナイトライド膜)と樹脂との接着性が向上
し、半導体装置の信頼度を高めることができた。
本発明は前記実施例に限定されない。例えばチ
ツプの保護膜としてポリイミド系樹脂、例えばポ
リイミド・イソインドロキナゾリンジオンをコー
テイングする場合も本発明を利用できる。この場
合、ポリイミド樹脂の表面に酸化物として
CVD・SiO2膜を形成するとよい。
本発明は又、セラミツクパツケージ、又は金属
パツケージ型半導体装置であつて、ナイトライド
膜等によりパツシベイシヨンを施しその上にポリ
イミド樹脂をコーテイングする場合においても同
様に適用できるものである。
【図面の簡単な説明】
第1図は本発明による樹脂封止半導体装置の原
理的構造を示す断面図、第2図a〜dは本発明に
よる半導体装置の樹脂封止プロセスを示す各工程
の断面図である。 1…Si基体(チツプ)、2…拡散層、3…熱酸
化膜、4…CVD・PSG膜、5…Al電極−配線、
6…ナイトライド膜、7…オキシナイトライド
(表面酸化膜)、8…樹脂モールド体、9…リード
フレーム。

Claims (1)

  1. 【特許請求の範囲】 1 半導体チツプの表面にプラズマCVD法によ
    るシリコン窒化膜が形成され、上記プラズマ
    CVD法によるシリコン窒化膜の表面に酸化物膜
    又は酸素を含んだ絶縁膜を介してモールド樹脂体
    が形成されていることを特徴とする半導体装置。 2 半導体チツプの表面にポリイミド系樹脂膜が
    形成され、上記ポリイミド系樹脂膜の表面に酸化
    物膜又は酸素を含んだ絶縁膜を介してモールド樹
    脂体が形成されていることを特徴とする半導体装
    置。 3 半導体チツプの表面にポリイミド系樹脂膜を
    形成する工程、このポリイミド系樹脂膜の表面に
    CVD法による酸化膜を形成する工程、前記工程
    後樹脂モールドによる封止を行う工程を有するこ
    とを特徴とする半導体装置の製造法。
JP16837879A 1979-12-26 1979-12-26 Manufacturing of semiconductor device Granted JPS5691453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16837879A JPS5691453A (en) 1979-12-26 1979-12-26 Manufacturing of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16837879A JPS5691453A (en) 1979-12-26 1979-12-26 Manufacturing of semiconductor device

Publications (2)

Publication Number Publication Date
JPS5691453A JPS5691453A (en) 1981-07-24
JPS6244690B2 true JPS6244690B2 (ja) 1987-09-22

Family

ID=15866982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16837879A Granted JPS5691453A (en) 1979-12-26 1979-12-26 Manufacturing of semiconductor device

Country Status (1)

Country Link
JP (1) JPS5691453A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61501537A (ja) * 1984-03-22 1986-07-24 モステック・コ−ポレイション 窒化物ボンディング層
CA2074809A1 (en) * 1990-01-29 1991-07-30 Marc J. Madou Passivated silicon substrate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146073A (ja) * 1974-10-18 1976-04-20 Nippon Electric Co Handotaisochi
JPS5258372A (en) * 1975-11-10 1977-05-13 Hitachi Ltd Semiconductor device and its production

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146073A (ja) * 1974-10-18 1976-04-20 Nippon Electric Co Handotaisochi
JPS5258372A (en) * 1975-11-10 1977-05-13 Hitachi Ltd Semiconductor device and its production

Also Published As

Publication number Publication date
JPS5691453A (en) 1981-07-24

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