TW200901344A - Semiconductor device and wire bonding method - Google Patents

Semiconductor device and wire bonding method Download PDF

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Publication number
TW200901344A
TW200901344A TW097100151A TW97100151A TW200901344A TW 200901344 A TW200901344 A TW 200901344A TW 097100151 A TW097100151 A TW 097100151A TW 97100151 A TW97100151 A TW 97100151A TW 200901344 A TW200901344 A TW 200901344A
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TW
Taiwan
Prior art keywords
wire
lead
capillary
bonding
pad
Prior art date
Application number
TW097100151A
Other languages
English (en)
Inventor
Tatsunari Mii
Hayato Kiuchi
Original Assignee
Shinkawa Kk
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Filing date
Publication date
Application filed by Shinkawa Kk filed Critical Shinkawa Kk
Publication of TW200901344A publication Critical patent/TW200901344A/zh

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    • H01L24/85—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/002—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating specially adapted for particular articles or work
    • B23K20/004—Wire welding
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  • Engineering & Computer Science (AREA)
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  • Condensed Matter Physics & Semiconductors (AREA)
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  • Wire Bonding (AREA)

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200901344 九、發明說明： [發明所屬之技術領域】 本發明係關於半導體裝置之構造及半導體裝置 之接合方法。 ' 【先前技術】 曰於ic等半導體裝置之組裝製程中，有以引線連接半導 體曰曰片與導線架之打線步驟。打線步驟一般使用之方法係 ^用插通有弓丨線之毛細管，藉由炬電極之放電在從毛細管 、 引線七☆而开々成球體，在使毛細管位於半導體晶片之 =上方亚進^于1次接合後’再使毛細管移動至導線架之 :線上亚進仃2次接合’藉此’以引線連接半導體晶片與 導線架（例如可參考專利文獻υ。 Ο 於上述之打'線方法巾，2二欠接合之引線與導線之接合 面積為夾於毛細管之面部與導線間之引線之面積，小於以 :、接口方式接合之i次接合之引線與墊部之接合面積，其 接口強度較低，接合之信賴性亦較低。 ^:匕’在專利文獻1中提出了一種提高此種2次接合 接口 4之強度以$南接合信賴性之方》去，係先對導線進 行2次接合後將導線折返再次對導線接合。又，在專利文 獻2中^提出之方法，係使引線連接於導線並移動毛細管， 將2 -人接合之接合部形成為帶狀而增加接合面積，以提升 2次接合之接合部之強度。 另方面，半導體裝置在以引線接合半導體晶片與導 5 200901344 線後’多使用將全體以樹脂密封而作成半導體封裝體之方 法。然而，半導體封裝體之構裝製程中，若已樹脂密封之 半導體封裝體之溫度上升，樹脂之熱膨脹可能對引線產生 應力。此時，2次接合之接合部與導線之接合部之厚度較 薄，熱膨脹造成之應力集中可能使接合部產生裂痕。因此， 在專利文獻3中係將厚度大於引線連接用接合部之接合部 δ又為與2次接合之接合部之半導體晶片側相鄰，以減少樹 脂熱膨服造成之裂痕發生。此外，專利文獻4為使樹脂不 進入導線與引線間，在2次接合時係使毛細管從導線端部 平行於導線面移動而使引線密著於導線。 專利文獻1 :日本特公平3_63814號公報 專利文獻2 :日本特開昭52_67262號公報 專利文獻3:曰本特開平2-30153號公報 專利文獻4:日本特開平8_293512號公報
L贺、明門畧J 之製造中，已逐漸用將複 成批密封法取代將各半導 封法。在使用此成批密封 複數島部和與之對應之複 並使用於背面側貼有防止 為接合而將此種導線架固 之膠帶被真空吸附於接合 密集配置之區塊之周邊從 然而，近年來在半導體裝置 數半導體晶片一起以樹脂密封之 體晶片個別以樹脂密封之個別密 法時’係將衫有半導體晶片之 數導線密集配置於—個區塊中， 密封劑外漏之膠帶之導線架。在 定於接合載台時，由於係隔背面 載台，且係在有複數半導體晶片 6 200901344 上方按壓導線架，故導線架對接合載台之固定狀態不良， 在打線時容易引起引線振動。 尤其是在接合某一引線時對該引線之超音波振盪會使 已接合完成之其他引線與導線間之接合部或墊部侧之球頸 產生裂痕’而成為斷線的原因。 Ο 立然而，在專利文獻1至4巾，並無關於上述接合時之 超音波振盪會造成其他已接合引線損傷之記載，故以專利 文獻1至4所記載之習知技術並未解決此問題。 本發明之目的即在於抑制接合時之超音波振盡造成其 他已接合引線損傷。 、 本發明之半導體裝置係一種將半導體晶片表面之墊呷 與導線以引線連接並於與導線架之半導體晶片安裝面相i 側之面黏貼膠帶而製造之半導體裝置，其特徵在於：包含 :插通於毛細管且從其下端突出之引線前端 ;體接合於塾部之球接合部、從球接合部向導線延伸輕 二該引線係：在球接合後之引線送出步驟 :肖導線之相反方向之第i扭折與凸向導線之方向 宴始扭折，之後被彎曲並接合於導線；形成有從墊部往 延伸並彎向半導體晶片之厚度方向…彎曲部、、f 。弟1彎曲部之相反方向之第2彎曲部、、 導線表面方向往導線延伸直線 ^/α 側端邻.接合料狀直線部 而邛’直線邛之導線側面被壓向導線表面。 ^發明之半導體裝置係一種將半導體晶片表面之塾部 、H線連接纽與導線架之半導體晶片安裝面相反 7 200901344 側之面黏貼膠帶而製造 腺# Λ·、从α 千V體I置，其特徵在於：包含 將形成於插通於毛細管 匕3 夕、仏+ 從其下端突出之引線前端所形成 已料之球頸上折…：…球㈣潰並按墨在 、 之引線側面而形成之按壓部、從按壓 4向導線延伸並接合於# 導線之引線；該引線係：在按壓部 /成後之引線送出步驟中 〇有凸向％"線之相反方向之第1 扭折與凸向導線之方向第 ,s y n之弟2扭折，之後被彎曲並接合於 .' v成有攸知"壓部往導線延伸並彎向半導體晶片之厚 :ώ向之第1彎曲部、彎向帛1彎曲部之相反方向之第2 =部2彎㈣沿導線表面方向往導線延伸之直線 卩接合於導線之直線部側端部；直線部之導線侧面被壓 向導線表面。 首本發明之打線方法係一種將半導體晶片表面之塾部與 $、在乂引線連接，具有：從將插通於毛細管且從其下端突 =之引線前端所形成之初始球體接合於墊部之球接合部向 ‘泉I伸而彎向半導體晶片之厚度方向之帛1彎曲部、彎 向第1彎曲部之相反方向之第2彎曲部、&第2彎曲部沿 導線表面方向往導線延伸之直線部、接合於導線之直線部 側端部，直線部之導線侧面被壓向導線表面，在與導線架 之半導體晶片安裝面相反側之面黏貼膠帶而製造之半導體 I置之打線方法，其特徵在於具有：將插通於毛細管且從 其下端突出之弓丨線前端所形成之初始球體按壓於墊部而接 合之第1接合步驟、在送出引線並使毛細管上升後，使毛 細官往導線之相反方向移動之反向步驟、在送出長度大於 8 200901344 反向步驟之引線並使毛細管 向移動至超過塾部上之接合毛細官在導線之方 導線之反方向之第！扭折之 m線形成凸向 線並使毛細管上升後 斤形成步驟、在送出力 部上之接合令心位置反方向移動至墊 扭折與連接於第2扭折之直 ：線之方向之第2 細管往導線弧形移動，將毛二二扭斤形成步驟、使毛 導線之第2接合步驟。、；導線以將引線接合於 本赉月之打線方法係—種將半導體曰 導線以引線連接，具有：將 曰曰 之墊部與 、开乂成於插通於毛細管且彡 端突出之引線前端所形成之初始球體接合於墊部之球接Γ 而形成之㈣部、從按二 =球頸上折返之引線側面 <按“在導線延伸並彎向半導體晶片 t 向之弟1彎曲部、彎向第1彎曲部之相反方向之 第2彎曲部、從第2彎曲部沿導線表面方向往導線延伸之 直線部、接合於導線之直線部側端部，直線部之導線側面 被壓向導線表面，在與導線架之半導體晶片安裝面相反侧 之面㈣”而製造之半導體襄置之打線方法，其特徵在 於具有：將插通於毛細管且從其下端突出之引線前端所形 成之初始球體按壓於墊部而接合之第"妾合步驟、在送出 引線並使毛細管上升且使毛細管往導線之反方向移動後， 使毛細管下降並以毛細管之面部壓潰球頸，再度送出引線 並使毛細管上升且使毛細管往導線之反方向移動後，再度 使毛細f下降而將引線側面壓於已壓潰之球頸上形成按壓 200901344 部之按壓部形成步驟、在送出引線並使毛細管上升後，使 毛細管往導線之相反方向移動至超過墊部上之接合中心之 位置之反向步驟、在送出長度大於反向步驟之引線並使毛 細管上升後，使毛細管往導線之方向移動至超過墊部上之 接合中心之位置，於引線形成凸向導線之反方向之第1扭 折之第1扭折形成步驟、在送出引線並使毛細管上升後， 使毛細管往導線之反方向移動至墊部上之接合中心位置， 形成凸向導線之方向之第2扭折與連接於第2扭折之直部 之第2扭折形成步驟、使毛細管往導線弧形移動，將毛細 管屡於導線以將引線接合於導線之第2接合步驟。 本發明可發揮抑制接合時之超音波振盪造成其他已接 合引線損傷之效果。 【實施方式】 以下，參考圖式說明本發明之半導體裴置之實施形態。 如圖1所示，以樹脂成批密封法製造半導體裝置時之導線 架12係設有安裝半導體晶片之複數島部15與對應於安裝 於島邛15之半導體晶片表面之墊部之複數導線I?。各島 部15與對應於各島部15之引線之一組構成1個片段50。 ^片段5〇係指半導體晶片之安裝、打線、樹脂密封後， 藉由切斷設於其間之切斷區域6〇而分別成為丨個半導體 裝置之區域。片段50係密集設於導線架12，由複數片段 5〇構成i個區塊70。區塊70係樹脂密封時成批密封之範 圍。又，各區塊周圍設有空間’以使打線時能以壓架71 200901344 從上方按壓並固定區塊70之外周。 :圖2所示，於導線架12之背面貼有可剥離膠帶Μ 以使㈣用樹脂不會從島部15與導線17間漏出 線架12在半導體θ Η〗】史壯# α ^ 八…广 島部15之後被搬送至接 5載口 53上，隔膠帶16受接 戰1 口 33之異空吸附孔5 5 真工吸附於接合載台53，且受 至木71從上方按壓各區塊 7〇之周圍而固定於接合載台 及與各丰導體晶片1 1 Γ·
之各導線1 7間係以引線21連接。 在導線架12被固定於接合载台53上之後，如圖3所 不，依序以引線21連接安袭於各島部15之各半導體曰片 "表面之各墊部13與對應之各導線17。因此，於打缘步 驟中’係在相鄰於已打線之引線21 t位置進行對次一塾 邛13或導、線17之接合。接著，在位於導線架u之所有 半導體晶4 11之塾部13與對應之導線17之連接結束後， 在次一製程導線架12被樹脂逐區塊7〇成批密封之後將 切斷區域60切斷以製造半導體裝置1〇。 由於此種半導體裝置之外部連接電極不會從已樹脂密 封之封裝體突出，而係於封裝體背面形成外部連接電極， 故被稱為 QFN (Quad Flat Non-Leaded Package)。 如圖4所示，半導體裝置l〇係以引線21連接安裝於 背面貼有膠帶16之導線架12之島部15之半導體晶片 表面之墊部13與導線架12之導線17。引線21係形成有·· 接合於半導體晶片11表面之墊部1 3上之壓接球23、剖面 積隨著從塵接球23往引線21而改變之球頸25、於半導體 11 200901344 晶片11之厚度方向從球頸25 厚度方向往導、線π延伸而向下彎曲之;：導體晶片η之 第1彎曲部之彎曲方向之反方向之 ：曲部27、往 29、從第2彎曲部29沿導線以面 之弟2彎曲部 伸之直線部31、接合於 D住導線17延 如圖5所干引綠、、 I線部侧端部33。 受毛細管超音二1=之直線部側端部33在接合_ 曰波振盪並被按壓向導線17而 直線部側端部33在接人 兄 於導線17。
為^直1往直線部側端部33厚度漸薄之形狀。 〆部^21係ϋ塾部側之麗接球23與導線側之直線部側 點固疋兩側，直線部3丨之導線側面被壓向導線 17之表面。此按壓力係由如圖6所示之接合步驟接合引線 21所產生。 如圖6⑷所示，藉由毛細管對形成於引線21前端部之 未圖示初始球體超音波振盪並按壓接合於墊部13上，並 在在塾部13上形成壓接球23與球頸25之第1接合步驟 之後’進行從毛細管41前端送出引線21並使毛細管41 上升後，使其往導線丨7之相反方向移動之反向步驟。此 反向步驟使毛細管41位於墊部13上之接合中心線28之 導線17之反方向之位置。在反向步驟結束後之狀態下， 引線2 1係從墊部丨3傾斜向導線1 7之反方向。另一方面， 由於毛細管41使引線21保持大致垂直於墊部13之面之 方向’故反向步驟結束後之狀態下之毛細管前端附近之引 線21會有凸向導線I?之反方向之彎曲趨勢。 12 200901344 在反向步驟之後進行第1扭折形成步驟。如圖6(b)所 Γ在送出引線21並使毛細管41上升後，由於引線υ T有之珂反向步驟之凸向導線17之反方向之彎曲趨勢， 故毛細管41之上升會形成彎曲部34。因毛細管上升而送 出之引線21之長度大於之前反向步驟中所送出引線之長 度。且，如圖6⑷所示’使毛細管41往導線^之方向移 動至超過墊部上之接合令心線28之位置後，彎曲部34 更加f曲，形成凸向導線17之反方向之第ι扭折h。由 :毛細管41位於墊部13上之接合中心線以之導線Η側， 第1扭折35係形成於墊部13上之接合中心線28之導線17 之相反側’故㈣21係在第丨扭折35與毛細管Μ之間 :為從導線17之反方向往導線17之方向傾斜之狀態。另 方面，由於毛細管41使引線21保持為大致垂直於塾部 13之面之方向’故第1扭折形成步驟結束後之狀態下之毛 Π:。前端附近之引線21會有凸向導線17之方向之彎 在第1扭折形成步驟之後進行第2扭折形成步驟。如 ⑷所不’在送出引線21並使毛細管41上升後，使毛 細管41往導線17之反方向移動，以使毛細管41之中心 2位於墊部13上之接合中心線28之位置。由於引線Η 麴-之Ί 1扭折形成步驟之凸向導線17之方向之彎曲 ,、，故毛細管41之上升與往導線17之反方向之移動 =成:：導線17之方向之第2杻折37°又，在第2扭折 /、官41之間形成有引線21伸長為直線狀之直部 13 200901344 在第2扭折37 圖6⑷所示，在第2成步驟之後進行第2接合步驟。如 13上之接合中心線2:折形成步驟之後使毛細管41從塾部 進，第"丑折35 “ ：導線17弧形前進。藉由此弧形前 方向從球頸25立起，曲而成為於半導體晶片1 1之厚度 17延伸並往下彎’^半導體晶# 11之厚度方向往導線 為彎向第！彎曲部27彎曲部2?。又’第2扭折”成 Γ、且，在第2 之反方向之上方之第2彎曲部29。 間之直…成於第2扭折37與毛細管4】 之直線部。直線部31部29沿導線17之表面延伸 部側端部33。 4部成為接合於導線17之直線 曰片二上矣述’由於本實施形態係在將引線21接合於半導體 日日片11表面之熱邱η, τ守蔽 往導線17夕士 ° 之後，送出引線21並使毛細管41 向及導線1 7之反方向移動，並在彡 線21凸向莫始Λ 勒並在形成使引 〇 之方Θ ★ 反方向之第1扭折35、凸向導線17 使毛Γΐ第2扭折37、連接於第2扭㈣之直部38之後， 接人？ 41弧形刖進而將引線21接合於導線17,故能在 ^日讀直…形為沿導線17之表面之方向之直線部 且此在將直線部31按壓於導線17表面之狀態下接合 W 線 21 〇 以上述方法接合之？I線21之直線部31係受導線17支 牙於半導體晶>} 11之厚度方向之狀態。因此，即使在其 餘弓丨線21接合時進行超音波振盪，亦能抑制已接合之引 14 200901344 線21之直線部3 1在引線21之半導體晶片丨丨之厚度方向 或垂直於導線1 7之表面之方向之振動，故可抑制已接合 之引線21因其餘引線21之超音波振盪而造成之損傷。 又，由於直線部31係被按壓於導線丨7，故即使在已 接合之引線21因其餘引線21接合時之超音波振盪而產生 沿導線17表面方向之振動時，亦可藉由直線部3丨與導線 1 7間之摩擦消耗該振動能量，抑制沿導線丨7表面方向之 振動’而可發揮抑制引線2 1之損傷之效果。 如上述，由於引線2 1之直線部3 1係被按壓於導線！ 7， 故可同時抑制垂直於導線1 7表面之方向及沿導線1 7表面 之方向兩方向之振動。 以圖1至圖3所說明之成批密封法製造半導體裝置i 〇 時’即使導線架12係隔膠帶16吸附於接合載台53，且在 各區塊7 0之外周被從上方按壓而使導線架12之固定狀態 不良’本實施形態仍能藉由直線部31之支撐及利用摩擦 力減輕振動使已接合之引線2 1對導線1 7之接合部因其餘 引線2 1之超音波振盪而受到之損傷減少。 以下參考圖7至圖10說明另一實施形態。另外，對與 已說明之實施形態相同之部分給予相同符號並省略其說 明。如圖7所示，半導體裝置10係以引線21連接安裝於 背面貼有膠帶16之導線架12之島部15之半導體晶片11 表面之墊部1 3與導線架12之導線1 7。引線2 1係形成有： 接合於半導體晶片11表面之墊部13上之壓接球23、將剖 面積從壓接球23往引線21改變之球頸25壓潰並按壓在 15 200901344 從壓'、主邱“上折返之引線21之側面而形成之按壓部26、 燮曲Z二26沿半導體晶另11之厚度方向往導線17向下 ，考曲之第1彎曲# ? 7 i 0 卜 之第…第考曲部之反方向之上方，彎曲 =考曲部29、從第2彎曲部29沿導線17表 線Π延伸之直線部31、接合於導線17之直線部側端 如圖8所示，形成於半導體晶片11表面之墊部13上 之按壓部26係形成有：球頸25在墊部13上之壓接球幻 上被壓潰而上面成形為平面狀之輯部…、引線η被折 返為從該㈣部25a凸向導線17之相反側之折返部2卜 連接於折返部26a之引線2 1之侧面被按麼向壓潰部25a而 上側之面在按壓時被毛細管按壓成平面狀之平面部㈣。 該平面部26b之墊部13側之面係被按壓於壓潰部25&之上 Η之面又，引線21之直線部3 1與直線部侧端部33之 構成與已參考圖5說明之前一實施形態相同。 引線21係以墊部側之壓接球23與導線17側之直線部 侧端部33兩點固定兩側，按壓部26之墊部13侧之面被 按壓於壓潰部25a，直線部31之導線側面被壓向導線17 之表面。此按壓力係由如圖9及圖1〇所示之接合步驟接 合引線21所產生。 與已說明之實施形態同樣地，進行藉由毛細管41對形 成於引線21前端部之未圖示初始球體超音波振盪並按壓 接合於墊部13上，並在墊部13上形成壓接球23與球頸25 之弟1接合步驟。 16 200901344 在第1接合步驟之後，進行如圖9(a)至圖9(f)所示之 按壓部形成步驟。另外，在圖9(a)至圖9(f)中雖省略導線 1 7之記載，但圖中之右側為導線〗7側。在按壓部形成步 驟中，如圖9(a)所示送出引線21並使毛細管41上升後， 如圖9(b)所示使毛細管41往導線17之反方向移動至毛細 管4丨之導線丨7側之面部43到達球頸25之上部。此時引 線21係從球頸25往導線17之反方向傾斜之狀態。之後 广 如圖9(c)所示使毛細管41下降並以毛細管41之面部43壓 ' 潰球頸25，在壓接球23上形成壓潰部25a。由於壓潰部25a 之上面係被毛細管41之面部43壓潰，故會成為沿面部43 之形狀之平面狀。又，引線21係被彎折向壓潰部25a之導 線17之相反側，且沿毛細管41之直孔47之導線η之相 反側之内面往墊部13之垂直方向延伸之狀態。 之後，如圖9(d)所示再度送出引線21並使毛細管41 上升後’引線21會沿毛細管41之直孔47被直線送出。 引線21祐來知答/1 1 a _
之彎折部分被折返向壓潰部25a之方 引線21之按壓部26之墊部13之側 25a之方向，形成折返部26a。 ，之後，如圖9⑷所示使毛細管41往導線口之方向移動後， 1 3之側被按壓於壓潰部25a之 17 200901344 上面按壓。卩26之上面係被毛細管4丨之面部43按壓而 形成為平面。在按壓部形成步驟結束後之狀態下，毛細管 41係，於墊部13之接合中心線28之導線17之側。 藉由上述接合方法’於墊部13之表面形成引線Η被 折返並被按壓之按壓部26。該按壓部26之下面被按壓向 形成於墊部13之壓接球23上之壓潰部ha，於半導體晶 片"之厚度方向或垂直於墊部13之方向受支撐，且被按 壓力按壓向壓潰部25a。 ▲因此，即使在其餘引線21接合時進行超音波振盪，亦 能抑制已接合之引線21之按壓部26在引線21之半導體 晶片11之厚度方向或垂直於墊部13之表面之方向之振 動，故可抑制已接合之引線21因其餘引線21之超音波振 盪而造成之損傷。 又，由於按壓部26係被按壓於形成於墊部13上之壓 /貝部25&之上面，故即使在已接合之引線21因其餘引線21 (;接°時之超音波振i而產生沿墊部13表面方向之振動時， 亦可藉由按壓部26之下面與壓潰部25a之上面間之摩擦消 耗該振動能量，抑制沿墊部13 &面方向之振動，而可發 揮抑制引線2 1之損傷之效果。 士上述由於引線21之按壓部2 ό係被按壓於形成於 墊部13上之壓潰部25a，故可同時抑制垂直於墊部η表 面之方向及沿墊部13表面之方向之兩方向之振動。 、下兑月在以上述之步驟在塾部13上形成將引線Η 折返之按壓部26後，引線21之成形、弧形前進並接合於 18 200901344 導線1 7之步驟。 如圖10(a)所示，在已參考圖9說明之按壓部形成步驟 之後，從毛細管41前端送出引線21並使毛細管上升後， 進行使在先前之知壓部形成步驟結束時位於墊部丨3之接 合中心線28之導線17之側之毛細管4丨往導線丨7之相反 方向移動之反向步驟。此反向步驟使從墊部13之導線17 側立起之引線21成為彎向導線丨7之反方向且傾斜之形 狀。另-方面’由於毛細管41内之引線21被保持為大致 垂直於塾部丨3之面之方向，故反向步驟結束後之狀離下 之毛細管前端附近之弓丨線21會有凸向導線17之反方向之 彎曲趨勢。 一 °。10(b)至圖1〇⑷所示，在反向步驟之後進行與前 :广形態相同之第1扭折形成步驟、第2扭折形成步驟。 ^ 2扭折形成步驟之後如® 10⑷所示進行第2接合步 從墊^圖Γ⑷所示，在第2扭折形成步驟之後使毛細管41 , 丨之接合中心線28往導線17狐形移動。_由 此弧形移動，筮]士 勒措由 37成；^ 成為第1 f曲部27，第2扭折 成為第2蠻油立β 9 Q 丄 導線Ρ 。。11卩38成為從第2 f曲部29沿 表面延伸之直線部3 1。直绫邱 山 合於導線Π之直線部側端部33。… W為接 如上述，由於本實施形態 晶“表面之塾部13上之線21接合於半導體 於球頸25之壓潰部25 =後’形成折返引線21並按壓 細管4"主導:二=部…送出弓丨線21並使毛 導線17之方向及導線”之反方向移動，並在 19 200901344 形成使引線21凸向導線 導線Π之方向之第2^ 第1扭折35、凸向 38之後，使毛細營41 Γ 37、連接於第2扭折37之直部 故&在旅入拄 形移動而將引線2丨接合於導線17, ::在接合時將直部38成形為沿導線17之表面之方向之 直線部31，且能在將連接 連接於直線部31之直線部 按壓於導線17表面之狀離η入 I㈣部33 狀&下接合。以上述方法接合之引 線21之直線部3 1係喹莲 係又導線17支撐於半導體晶片U之厚 度方向之狀態。 Ο 本實施形態由於該拉嚴立 4 於°亥杈壓部26之下面係被按壓於形成於 塾部1 3之墨接玻21卜+ ®、主&、 衣23上之壓潰部&而在半導體晶片"之 厚度方向或垂直於塾部13…受支撐，且能藉由該按 壓力消耗沿墊部13之面之方向之振動能量，故可於引線Μ 之墊部13側抑制引線21之振動。此外，與前-實施形態 7樣地，由於引線21之直線部31係在引線Η之半導體 晶片11之厚度方向或垂直於導線17之表面之方向受支 撐，且被按壓於導線17而能以直線部3丨與導線丨7間之 摩擦消耗振動能量，故亦可於引線21之導線17側抑制引 線21之振動。因此，能較先前實施形態抑制引線2〗整體 更大之振動’更有效抑制已接合之引線21對墊部13及導 線17之接合部因其餘引線2丨之超音波振盪而造成之損 傷。 與已§兒明之實施形態同樣地，以圖1至圖3所說明之 成批密封法製造半導體裝置10時，即使導線架12係隔膠 帶1 6吸附於接合载台53，且在各區塊70之外周被從上方 20 200901344 按壓而使導線帛12之固定狀態不良，本實施形態仍能藉 由按壓部26及直線部31之支撑及利用摩擦力減輕振動使 已接合之引線21與塾部13之接合部及引線21與導線Η 之接合部因其餘引、線21之超音波振盪而受到之損傷更有 效減少。 【圖式簡單說明】 圖1為使用於成批密封法之導線架之俯視圖。 圖2為顯示使用於成批密封法之導線架固定於接合載 台之狀態之剖面圖。 △圖3為顯示對使用於成批密封法之導線架打線後之狀 態之局部俯視圖。 圊4為顯示本發明之實施形態中連接 導體晶片與導線之引線之圖。 + 圖5為顯示本發明之實施形態中半導體裝置之導線側 之引線之立體圖。 圖6為1員示本發明之實施形‘態中半導體裝置之打線 驟之說明圖。 圖7為1頁示本發明之另一實施形,態中連接半導體裝置 之半導體晶片與導線之引線之圖。 圖8為顯示本發明之另-實施形態中半導體裝置之墊 部側之按壓部之立體圖。 圖9為顯示本發明之另一實施形態中用於形成半導體 裝置之按壓部之打線步驟之說明圖。 21 200901344 圖1 〇為顯示本發明之另一實施形態中形成半導體裝置 之按壓部後之打線步驟之說明圖。 【主要元件符號說明】 10 半導體裝置 11 半導體晶片 12 導線架 13 墊部 15 島部 16 膠帶 17 導線 21 引線 23 壓接球 25 球頸 25a 壓潰部 25b 彎曲部 26 按壓部 26a 折返部 26b 平面部 27 第1彎曲部 28 接合中心線 29 第2彎曲部 31 直線部 33 直線部側端部 22 200901344
34 彎曲部 35 第1扭折 37 第2扭折 38 直部 41 毛細管 43 面部 45 内去角部 47 直孔 50 片段 53 接合載台 55 真空吸附孔 60 切斷區域 70 區塊 71 壓架
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Claims (1)

  1. 200901344 十、申請專利範園·· 1 種半導體裝置’係將半導體晶片表面之墊部與導 線以引線連接並於與導線架之半導體晶片安裝面相反側之 面黏貼膠帶而製造，其特徵在於，包含： 將插通於毛細官且從其下端突出之引線前端所形成之 初始球體接合於墊部之球接合部；以及 從球接合部向導線延伸並接合於導線之引線； 該引線係 在球接合後之引線送出步驟中設置凸向導線之相反方 向之第1扭折與凸向導線之方向之第2扭折，之後被彎曲 並接合於導線； 形成有從墊部往導線延伸並彎向半導體晶片之厚度方 向之第1彎曲部、彎向帛lf曲部之相反方向之第2彎曲 部、從第2彎㈣沿導線表面方向往導線延伸之直線部、 接合於導線之直線部側端部； 直線部之導線側面被壓向導線表面。 2、-種半導體襄置，係將半導體晶片表面之墊部與導 線以引線連接並於與導線架之半導體晶片安裝面相反側之 面黏貼膠帶而製造，其特徵在於，包含： _按壓部，將形成於插通於毛細管且從其下端突出之引 線前端所形成之初始球體接合於墊部之球接合部上之球頸 壓潰’並按Μ在已壓潰之球頸上折返之引線側面而形成； 以及 引線，從按壓部向導線延伸並接合於導線； 24 200901344 該引線係 在按壓部形成後之引魂详屮 丨綠送出步驟中設有凸向導線之相 反方向之第1扭折與凸而墓始十士人 ^ 向^線之方向之第2扭折，之後被 奇曲並接合於導線； 形成有從按壓部往導線延伸並彎向半導體晶片之厚度 方向之第1 f曲部、·彎向第1 ·彎曲部之相反方向之第2彎 曲部、從第2彎曲部沿導续矣而士 · 导綠表面方向在導線延伸之直線部、 接合於導線之直線部側端部； 直線部之導線側面被壓向導線表面。 j 3、-種半導體裝置之打線方法，該半導體裝置，係將 +導體晶片表面之墊部與導線以引線連接，且且有：從將 插通於毛細管且從其下端突出之引線前端所形成之初始球 體接合於墊部之球接合部向導線延伸而彎向半導體晶片之 厚度方向之第1彎曲部、彎向第1 f曲部之相反方向之第 2輪、從帛2彎曲部沿導線表面方向往導線延伸之直 線部、接合於導線之直線部側端部’直線部之導線側面被 塵向導線表面’在與導線架之半導體晶月安裝面相反側之 面黏貼膠帶而製造，該打線方法，其特徵在於具有： 將插通於毛細管且從其下端突出之引線前端所形成之 初始球體按壓於墊部而接合之第丨接合步驟； 在送出引線並使毛細管上升後，使毛細管往導線之相 反方向移動之反向步驟； 在送出長度大於反向步驟之引線並使毛細管上升後， 使毛細管往導線之方向移動至超過墊部上之接合中心之位 25 200901344 置’於引線形成凸向導線之反方向之第i扭折之 形成步驟； 7折 在送出引線並使毛細管上升後，使毛細 方向移動至塾部上之接合中心位置，形成凸向導2:: 之第2扭折與連接於第2扭折之直部之第❿折形成步驟； 以及 Γ 使毛細管往導線孤形移動，將毛細管壓於導線以將弓i 線接合於導線之第2接合步驟。 4、一種半導體裝置之打線方法’該半導體裝置，係將 十¥體晶片表面之塾部與導線以引線連接，且具有：將形 2於插通於毛細管且從其下端突出之引線前端所形成之初 :球體接合於墊部之球接合部上之球頸壓潰並按遷在已壓 巧之球頸上折返之引線側面而形成之按壓部、從按壓部往 導線延伸並，彎向半導體晶片之厚度方向之帛i彎曲部、彎 2第卜彎曲部之相反方向之第2f曲部、從第2f曲部沿 V線表面方向往導線延伸之直線部、接合於導線之直線部 則端部’直線部之導線側面被壓向導線表面，在與導線架 之半導體晶片安裝面相反側之面黏貼膠帶而製造，該打線 方法’其特徵在於具有·· 、將插通於毛細管且從其下端突出之引線前端所形成之 初始球體按壓於墊部而接合之第丨接合步驟； 在送出引線並使毛細管上升且使毛細管往導線之反方 :移動後’使毛細官下降並以毛細管之面部墨潰球頸，再 又送出引線並使毛細管上升且使毛細管往導線之反方向移 26 200901344 動後，再度使毛細管下降而將引線側面壓於已壓溃之球頸 上形成按壓部之按壓部形成步驟； 在送出引線並使毛細管上升後，使毛細管往導線之相 反方向移冑至超過墊部上之接I中心之位置之&向步驟； 在送出長度大於反向步驟之引線並使毛細管上升後， 使毛、’、田s往導線之方向移動至超過墊部上之接合中心之位 置，於引線形成凸向導線之反方向之帛1扭折之第i扭折 形成步驟；
    在送出引線並使毛細管上升後，使毛細管往導線之反 :私動至墊部上之接合中心位置，形成凸向導線之方向 、彳折與連接於第2扭折之直部之第2扭折形成步驟； 將毛細管壓於導線以將引 使毛細管往導線弧形移動 線接合於導線之第2接合步驟。 U 十一、圖式： 如次頁 27
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