TW454285B - Semiconductor device and method for manufacturing same - Google Patents

Semiconductor device and method for manufacturing same Download PDF

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Publication number
TW454285B
TW454285B TW089111690A TW89111690A TW454285B TW 454285 B TW454285 B TW 454285B TW 089111690 A TW089111690 A TW 089111690A TW 89111690 A TW89111690 A TW 89111690A TW 454285 B TW454285 B TW 454285B
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TW
Taiwan
Prior art keywords
electrode
bump
resin
electrodes
filler
Prior art date
Application number
TW089111690A
Other languages
English (en)
Inventor
Gorou Ikegami
Original Assignee
Nippon Electric Co
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Publication date
Application filed by Nippon Electric Co filed Critical Nippon Electric Co
Application granted granted Critical
Publication of TW454285B publication Critical patent/TW454285B/zh

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    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
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Description

4 5 4¾ 8 5 α 五、發明說明（1) !明背景 發明之領垃 本發明係關於一種半導體裝置，其具有配線板 體片狀元件之間直接連接的構造。 、^ 相關技術之描被 為增進攝影機、筆記型個人電腦等的輕便 其小型電子電路裝置更小與更輕，而其中使用之更小=
子兀件或相同尺寸但更高度積體化的電子元件形成更小J 與更輕電子電路裝置。 ^ ^ J 在半導體裝置中’已有半導體片狀元件 積體化程度之增加，成果並不限定於此等 寸之縮^ 半導體片狀元件直接連接到配線板，從ς J:將 片狀：:9,說:二 主表面…形電極3形成在半導體基板2的 媸雪；ten米 成有大量的電子兀件（未圖示）。此等凸 塊電極3通常以焊錫或金形成。 此寺凸 參考號數4代表配線板，由形 的導電圖帛（未圖示）所形成 電邑:基板j表面的銅 (未圖示）覆蓋，與接著在光阻膜上者以光阻膜 :形成窗孔，以便露出導電圖案C極3相對的位 塾電極6。此等焊塾電極6通常二而在窗孔處形 V白製造，在其上覆芸一 Μ 予又U到18wm的銅 其上層疊一厚度^又為到5以爪的鎳鍍層，盥再於 示單層J度為°·。3到心然而，在此圖中再僅於顯 第5頁 4 5 4¾ 8 6 α ---~~!—_________ 五、發明說明（2) - 參考號數7代表樹脂，其使半導體片狀元们與配線板 5之間產生機械連接，且其保護半導體片狀元件i上的配線 圖案（未圖示）免受外部腐蝕性氣體腐蝕。 上述構造係廣為人知，且被揭露在曰本特開昭第63 一 41 955號公報（習知技術i )、美國專利第57958 1 8號(習 知技術2 )、日本特開昭第6〇 — 262 43〇號公報（習知技術3 )、與曰本特開平第9—97816號公報（習知技術4)。 ^上述習知技術例子中，習知技術1中凸塊電極3係以焊 所形成，而半導體片狀兀件丨係以倒裝法連揍到配線板 在上述習知技術2中，提到對焊塾電極6施加每凸塊電 5 3約2 0 g的負重，將半導體片狀元件1加熱到2 4 〇。匸，與將 配線板4加熱到19(TC ’也將超音波震盈施加到電極3與6以 :::成金屬對金屬的接合；而上述另一例子中使用對每 ，塊電極3約l〇g的負t ’將半導體片狀元件1加熱到i8〇t： 與配線板4加熱到19(TC，也將超音波震盪施加到電極3與 6 ’以便形成金屬對金屬接合。 上述習知技術例子丨與？中，在使半導體片狀元件1與 西己3,4之間產生機械與電性接合之後，將樹.脂7,供應至^ 狀元件1與配線板4之間作為黏著劑。然而，由於4 ί7Λ狀元件1與配線板4之間只有約1GG_的小間隔，相 月曰7很難進到其間’且即使其真能進到其間， 生氣泡的問題存在。 習知技術丨中氣泡不會存在樹脂7中，但其作法麻煩。 五、發明說明（3) a在習知技術2中，由於可以想見將有樹脂7中易於產生 耽泡的問題存在，故其不曾提到如何移除此等氣泡。 相反的，在習知技術例子3與4中，預先將樹脂7供 到配線板4上包含焊墊電極6的區域上，將半導體片狀元. 1供應到此樹脂7上方與對其施加壓力，使得焊墊電極6盥 凸^極3疊置，從而將凸塊電極3與焊塾電極㈣的樹脂7 迫出與使電極3與6間產生電性連接。在此情 片狀元件1與配線板4間的樹脂7仍使 機械連接，而電極間的壓力保持其電性連接。 在上述·半f體裝置中’由於預先供應到 的樹脂7被擠壓並散開，故氣泡很難保留在掛脂7中，從而 解決習知技術例子1與2後存在的問題。 要2習；ΐ術例子3中，提到當使用光硬化樹脂時的效 為、、邑不對半導體片狀元件1與配線板4加熱，而即使去使 用熱硬化樹脂日夺，硬化溫度提高到不大於15〇。。，砝果田直 :以減輕構成材料的熱變形，且可以得到高可靠度：連、 力到ί: iff例子4中也提到效果，其中雖然在施加壓 墊電極6的接合處時供應熱硬化樹脂7 收縮率大於熱膨脹係數的樹脂7-即使在 :::广：於硬化收縮率超過熱膨脹係數，力不會使 電極脫離，使得連接不會變得不穩定；與 ,，其中由於凸塊電極末端係與焊墊電極6 ^ δ 8 5 一 III. 五、發明說明（4) 巧觸’在其間施加壓力日夺又擴大以便達成面接觸， 極間的樹腊7被從接觸部分趕出，從而達接口 觸，而不包含雜質。 ^ 7 m 中，^ Ϊ ^化在f知技術例子3與4料導體裝置 田樹月曰7硬化時，即使與焊墊電極6疊置的凸M雷炻q 在彈性限度内造成壓縮變形之後 =凸塊電極3 接狀態。 & <傻仍保持電極3與6間的壓 半=體裝置元件的熱膨脹係數，例如基於 Ϊ狀70件1與基於環氧樹脂的配線板4中的半導體A : 2 3塊電極3、絕緣基板5、與焊墊電.極6，/導m2; 、卿。c、與_八 ^ 卜塾電極6、與凸塊電極3的熱膨服係數相近，由 熱膨脹所導致的長度差異不成問題。 数相近由 差展雖體基板2與凸塊電極3間的熱膨脹係數有很大 凸塊的直徑均小，故實質上沒有問ί 然而，以树脂7黏合的半導體 的熱膨脹係數比超過6，且由於Λ祕配線板4間 各個凸塊電極3的直電極3的配列長度遠較 導#η壯：：ϊίι 文當半導體裝置操作時，半 人表面門的埶赌咖又右上升至高於室溫狀態，樹脂7的兩黏 合表面間的熱膨脹差異即增大。 例如右疋將電極配置長度為1 〇mm的半導體片狀元件 6的配置長度被加長12 8 " t P，而焊墊電極 被雙金屬效果所吸^ 由熱膨服導致的長度差異 第8頁 五 發明說明（5) 在％知技術例子3與4中’由於當由熱膨脹所導致的應 f加在疊置的表面方向上時電極3與6為壓接，故電極接 、面有位置的偏移，從而緩和電極接觸部分上的應力， 而避免電極剝離的問題。 例如，在曰本特開平第8 - 1 954 1 4號公報（習知技術5 特開平第9 — 2 6 6 2 2 9號公報（習知技術6 )、特開平第 $、1 07082唬公報（習知技術7 )、與特開平第1 1 — 87424 括Ί報（習知技術8 )、曰本專利第291 4569號公報（習知 )2 、與日本特開平第11 —406 06號公報（習知技術10 二中：揭露-種以气土或石夕土的微細粉末散佈在樹脂7 以平衡熱膨脹差異的半導體裝置。 十述習知技術例子中’習知技術例 露了二直右：ί ϊ、。特別是’在習知技術例子5到8中，揭 中有在半導體片狀元件1侧與配線板4側的樹脂7 中有不同散布，以便調整熱膨脹係數。 在習知技術例子1 〇中，葙带7时朴丄 的樹脂7塗佈在配線板4上盘將：以：散佈了的填充劑 配線板4，將凸塊電極3的；狀元件1連接到此 極3與6疊置的部分存在。連接’而沒有填充劑在電 在藉由增加凸塊電極的數 之尺寸所達成高度積體化的情 小，其間的配置間距變窄，且 量而不增加半導體片狀元件 况下’凸塊電極3的直徑減 將凸塊電極排列成交錯的圖 4 5 4¾ 8 5 2. 五、發明說明（6) 案。 然而， 凸塊電極的 在揭露 接係藉由電 由電極本身 二f，由於疊 的凸塊電極 若是使 導體裝置在 到足夠.高溫 特別是_ 劑充當置於 且若是少量 絕緣隔板， 若是凸 施加壓力到 施加過量負 電極間接觸 當開始 度差時上述 擾與電子電 即使以 3的直徑做/ 若是凸塊電極3的直徑減小，則施加壓力之蒙 高度與形狀的變異變大。 ％ 於習知技術例子3與4的半導體裝置中，由於 極金屬的彈性變形而達成，故於高溫下雖可葬 的膨脹而保持穩定之接觸情況’但在極低溫曰 置界面在剝離方向上收縮，故原本具有低^廓 受到縮小接觸壓力，從而導致接觸電阻增大。 用具有此型低凸塊電極的半導體片狀元件的半 極低溫下開始操作，則在半導體片狀元件i達 之前有不穩定操作發生的問題。 . ，當樹脂硬化時，散佈在樹脂7中的無機填充 電極間的絕緣隔板’而於其間具有低作用力.， 的樹脂殘留在其間的間隙，則此樹脂充當薄膜 從而導致不良的電連接。 塊電極3的高度藉由縮小其直徑而:減少，則當 疊置的部分時彈性變形限度會降低，使得若是 荷’則易發生塑性變形，其後於極低溫下會有 電阻快速增大的問題。 操作的溫度與操作開始後的溫度之間有大的溫 問題特別顯著，在此情況下，有電極間產生干 路裝置故障的風臉。 習知技術例子1 〇所揭露的技術，當將凸塊電極 丨、’以容納大量電極時，變得很難使其末端尖
第10頁 4 5 8 5 么 五、發明說明（7) ' ~ ^"""""' 銳/且由於焊墊電極6必需以黎金wi〜覆〜蓋-慮，故從 技術與成本的觀點來看不可能立即實施此技術。 發明概要 因此’本發明欲解決上述之習知技術的問題且目的 為提供一種半導體裝置，其中使具有凸塊電極的半導體片 狀元件與具有焊墊電極的配線板相對，以其中散佈填充劑 的樹脂介於其間，與使凸塊電極與焊墊電極疊置’以殘留 在其間的填充劑使疊置的電極部分熱壓連接，同時使用該 樹脂將半導體片狀元件與配線板黏合在一起。 本發明的另一目的為提供一種半導體裝置的製造方 法’具有以下步驟：供應其中散佈填充劑的樹脂至形成在 一配線板上的悍墊電極上，此配線板具有一絕緣基板，其 上沿著至少一直線或其附近區域形成大量的焊墊電極；使 形成有凸塊電極的半導體片狀元件能夠使其直徑向末端縮 束，並形成在半導體基板上與配線板相對並接近的位置， 以便向外壓擠該樹脂；使該凸塊電極的末端插入樹脂中， =該凸塊電極㈣末端與該料電極之間被才甫捉的填充劑 I ;施加壓力，以便壓擠該凸塊電極的末端部分同時自形 成在該疊置的電極間的區域移除該樹脂’以便聶置 保持該凸塊電極與該焊墊電極間之疊置部分的力^壓 ’， ;時加熱至少該半導體片狀元件以便熱壓擠該各電極的嗜 噯置部分，並硬化該樹脂，以便從而黏合 件與配線板。 干等體片狀兀
第11頁 ^54^85 五、發明說明（8) H 在I ^本發明的半導體裝置中，使散佈於提供半導體 教® 22配線板間之黏合的樹脂中的填充劑部分殘留在 凸塊電極與焊塾電極間疊置的界面。 太# #八μ，置的構造為樹脂的填充劑部分被捕捉在以 末：:二盥煜：、縮束形成的軟導電材料所製之凸塊電極的 = 焊塾電極的末端部分被壓擠以使
在依照本發明的半導M 或以上的凸塊電極與焊塾置口充= .極的疊置部分保持良好電性連J疊…’從而在所有電 从：於若是填充劑集中在小於1〇 的 籍 的一塊區域上，則在包圍们且置#刀的表面積 強度的惡化舆熱接纟強声Ϊ: f充劑的區域會有電極疊置 充劑殘留於至少1 〇%或，應散佈填充劑以便使填 置的表面積。 戈以上的凸塊電極與焊塾電極間的疊 此外’藉由使凸塊電極盥 面積的填充劑比率為殘留填“二間广疊置部分的表 藉由使用微粒狀或纖維狀 ：=接。 依照本發明之半導體裝置中使用的樹::填ΐ劑，散饰於 與電流的表面積最小化。 甲，可以使切斷熱 在依照本發明之半導體裝置的事 將其中散佈填充劑的樹月旨供應於配i板上:’其中首先 狀兀件的凸塊電極插入此樹脂 ^將半導體片 定仔田將疊置部分間熱
壓接合時’樹脂中的填充劑部分殘留在凸塊電極與焊墊電 極間的電極疊置界面，此方法可以將半導體片狀^件的加 熱溫度設定到介於23 °C到300的範圍内，與將配線板的加 熱溫度設定到介於5 0 °C到1 2 0 °C的範圍内。 整^隹實施例之詳細説明 以下參考相關附圖說明本發明的實施例。 以下參考圖1與圖2說明依照本發明之半導體裝置的一 實施例。在此等圖中，參考號數i丨代表半導體片^元件， 在其半導體基板12的主表面上形成大量的凸塊電極13， 塊電極1 3係以軟導電材料例如金所形成，且半導體基板 〔 已形成大量半導體元件（未圖示）於其上。 參考號數14代表配線板，其在此例中其形成係藉由形 成一銅猪的導電圖案（未圖示）於玻璃纖維環氧樹脂所製 之絕緣基板1 5的一側，與又在其導電圖案上覆蓋焊錫抗蝕 膜（未圖示），形成窗孔以便將焊錫抗蝕 極 對面的位置的導電圖案部分露出，從而在開窗孔== 焊墊電極16。 ' 參考號數1 7代表樹脂，其使半導體片狀元件11與配線 才=14之間機械連接，且其保護半導體片狀元件u的連接圖〔 案（未圖示）免受腐蝕性外部氣體的腐蝕。 在依照本發明的半導體裝置中，在樹脂17中散佈填充 劑1 8，目的為調整熱膨脹係數，使此填充劑丨8的一部分保 留在凸塊電極1 3與焊墊電極丨6之間的疊置界面。
第13頁 4 5 4S：B5 2. 五、發明說明（10) 以下參考圖3到圖7詳細說明上述半導體裝置的一例。 首先，如圖3所示，準備一半導體片狀元件u，其中凸塊 電極13’形成在半導體基板12上。 ’ 如圖4所示，此等凸塊電極13,係以金球2〇a藉由使用 放電專溶接金線2 0的下端所形成’金線2 〇係經由毛細管1 9 插入且以超音波震盪，此金球2〇a以毛細管19的下端壓向 半導體基板1 2上的指定點，與再施加壓力至其上，以便藉 由超音波震盪產生連接’接著將毛細管丨9與線2 〇升高，並 將線2 0於壓擠的金球2 0 a附近切斷。如圖3所示，其構造為 具有不同直徑’大直徑部1 3 a ’為壓擠的金球2 〇 a的直徑的 尺寸’與小直徑部1 3 b在線2 〇被拉開處，小直徑部1 3 b ’的 末端部進一步向其尖端縮束，使得尖端成為立體拋物線的 形狀。 在^直徑部13a’與小直徑部13b’之間，形成一中心部 (未圖示）’其形狀與大小係由毛細管丨9的内徑構造所決 定。 在使用直徑為2 5 a m的金屬線的情況下，凸塊電極j 3， 的基部直徑為8Q到95 _，基部高度㈣聊_，與從基 部到小直徑部_13b’尖端的高度為約7〇以m。 * Λ t ^ 5/斤不’其上形成焊墊電極16的配線板14置於玻 ％氧樹脂板（絕緣基板）1 5的指定部，於支持檯21 上。 的铜^墓\極16形成為層疊構造，其具有厚度為12到18 # m、”S V白電圖案’其上方以電鍍覆蓋厚度3到5 // m的鎳，
第14頁 4 5 4¾ 8 5 α -—— 五、發明說明（11) 與進一步於其上方以電鍍覆蓋厚度0· 〇3到1 的金。然 而’在此圖中，焊墊電極〗6以單一層顯示。 ·'、 參考號數2 2代表樹脂供應設備’其供應樹脂1 7於支持 檯21上，其於水平方向上移動，以便塗佈流體到配線板^ 4 上被焊墊電極1 6包圍的區域。 無機填充劑18散佈在樹脂17中。此填充劑18為微細粉 末具有微粒狀或纖維狀的鋁土或矽土，其直徑介於2到6 ^數且含量錢紹重量的㈣75%，則㈣整其熱膨服 參考號數23代表加熱器’其埋入支持檯21中，且 由配線板1 4加熱樹脂1 7。 、'工 在樹脂供應設備22供應指定量的樹脂17到 放置的配線板14的頂部之後，如圖6所示，、 =吸住半導體片狀元件U，使凸塊電極1電机，加熱’ 動到配線板14上方。 门下並移 真二吸座24以負載單元加壓酿叙 施加預設的固定負載到在下降的過 力時， 11上。 狂τ的+導體片狀元件 雖然未顯示於圖中，以直*哄成 導體片狀元件11的凸塊電極"：置係藉：：真空狀態的半 測’並基於此位置資料控制真空吸座2藉2識別予以情 電極13與焊墊電極16疊置。當半 的移動，以使凸塊 板14時，並與樹脂π接觸盘進一狀几件Π接近配線 進步接近，樹脂17向外擴 第15頁 4 5 4¾ 8 5 五、發明說明（12) 散，使得在凸塊電極L3與焊墊電極16接觸之前，樹脂17覆 蓋於焊墊電極16上’且在其凸塊電極13與焊墊電極^接觸 的點處，如圖7所示’幾乎所有的樹脂1 7已被推刭主道鲈 片狀元件11以外的區域。 接著，如圖8所示，將凸塊電極1 3 ’從圖中虛線表示的 位置下降，與當進一步施加壓力到半導體片狀元件丨丨時， 凸塊電極1 3的末端部被壓擠，使得小直徑部丨3b的周緣向 外膨脹，如圖中的實線所示。 ' 凸塊電極13’的末端部的形狀係藉由金屬線的拉與切 所形成’且其實質上為立體拋物線的形狀，雖然以放大形 式顯示，其末端部具有微細的突起。 因此，當凸塊電極1 3的末端與焊墊電極丨6接觸時，填 充劑1 8被捕捉在電極間。由於真空吸座24以固定大小的^ 壓擠半導體片狀元件11，負載集中在捕捉有填充劑18的凸 塊電極1 3的末端處微小的表面積上，從而有利凸塊電極1 3 的末端部的壓擠。 ¥上述現象發生時’形成在凸塊電極13的周緣表面與 焊墊電極1 6之間的角度變得足夠小，與焊墊電極丨6密切接 觸時有向外膨脹到周邊，使得配置在膨脹部的外周緣的填 充劑18幾乎完全自疊置的部分排出。 ' 因此，電極1 3與1 6係以殘留在凸塊電極1 3與焊墊電極 1-6間之疊置界面的中心部的填充劑丨8予以疊置的。 由於負載集中在凸塊電極1 3的末端部，捕捉的填充劑 象，例如在軟金屬例如金中可見者，與甚至
第16頁 4 5 4¾ 8 5
五、發明說明（13) 咬入較金硬的鎳與銅中，從而達成二者間的機械連接， 防止疊置表面方向上的位置偏移，使得即使在當凸 13被壓擠的期間，變形中心仍為固定’造成電極】= 部分均勻連接。 J且置的 〇此完成凸塊電極1 3與焊墊電極1 6間之壓力連接的製 程，在此時，保持壓力施加的情況為真空吸座24的 ，極30gf，將電力施加到加熱器23，以便加熱配線板η : ”進一步將電力施加到真空吸座24的加熱器 半導體片狀元件11。 乂便加熱 、加熱配線板14的加熱器23設定為使得焊墊電極16 面·度達到50到120 t的溫度，在此例如軟化等損害不會 發，在絕緣基板1 5上，且加熱半導體片狀元件】工的加 25設定為使得凸塊電極13的溫度達到23〇到3〇〇:埶 ，間設定為使得樹紹為至少半硬化，加熱電極13與16的、 唛置的部分達指定的時間，從而達到熱壓接合。 、 當將電極13與16熱壓且以使此方式使樹脂17半硬化 時’自加熱器23與25移除電力，半導體片狀元件u自真空 =座釋放與升高’且完成的半導體裝置自支持檯2ι頂部； Η 體裝置’其中使用具有反2個具上述形狀與 塊電極的半導體片狀元件11，與具有填充劑含量 二7里/°的樹脂1 7，藉由發煙鹽酸移除半導體裝置的樹 ，”配線板剝離半導體片狀元#11以觀察電極的間樹疊 置I面面的填充劑1 7的情況，吾人發現其疊置界面表面
4 5 4®[ 8 5 O- 五、發明說明（14) 的中心部的電極中，殘留有填充劑18的數量為几個， 60%的情況下為90個或.更多，在凸塊電極與坪墊電極之凡 置位置中超過5 〇 %的情形殘留有填充劑。 觀察填充劑殘留的位置時V發現殘留填充劑幾乎全部 集中在凸塊電極與焊墊電極疊置的中心部，填充劑殘留在 凸塊電極與焊墊電極間疊置的表面積的至少1〇%的區域。 拗物i ? i被認為是由於焊墊電極13係以軟金屬形成為 =物線的立體形狀，在凸塊電極13，與焊整電極16接觸之 刻^成’凸塊電極13’的尖端被壓擠較配置在凸塊電 Λ端Λ近的填充劑18被推走更快；使1得填充劑18 被捕f在電極㈤疊置的表面積的大於10%的區域。 π i σ人ί現自疊置部的中心部越遠離周緣部，殘留在 !:間亡=置部的填充劑18變得越稀疏，‘且其殘留位置變 :H: 而於電極間疊置表面部分中殘留有填充劑之 ϋ士劑所占有之面積比率為1〇%或更低，且電極 間電阻的增大不致影響到連續性。 拉1511例的使用$包含·充劑的樹脂的•導體裝置 本發明的半導體裝置中移除樹脂，發現 ^ ^ f配線板的方向推半導體片狀元件1 1側壁的 剝離強度’並無差異。 # 1 為f係由於殘留在電極間的填充劑18咬入凸塊電 極13與知塾電極;的兩古山 觸的中心位置的偏移此末二避免凸塊電極13,的接 狀的變異。 此舉4除各凸塊電極13，的膨脹形
第18頁 454β：85 q__ 五、發明說明（15) 在壓擠凸塊電極1 3’的初期階段，在凸塊電極丨3，與焊 墊電極16接觸的部分以填充劑18分割成細小表面積，負' ^ 集中在此等細小表面積上’從而增加填充劑1 8與焊塾電極 1 6之周緣區域處之凸塊電極1 3 ’間的接觸壓力，使得即使 填充劑1 8殘留，仍保持低接觸電阻。 上述本發明之實施例係說明具有凸塊電極的半導體裝 置的情況，其係使用直徑為20 的金屬線，藉由使用 徑小於2 5 // m (例如為2 0 μ m或1 8 # m )的線，可以使凸塊 直徑較小與同時使凸塊咼度較小’使得即使此等尺寸顯出 大的不一致性，仍可達成凸塊電極與焊墊電極間良好的連 接0 進行實驗，其中將半導體裝置儲存在極低溫一段長 間，之，將溫度升高以開始操作，自一固定低溫與接著進 一步提高到一固定高溫，之後停止操作與降低溫度，接 進一步冷卻到一極低溫’與重覆上述溫度周期，證明不論 凸塊電極尺寸為何操作均穩定，不產生噪且成 的電極連接。 X ^ ^ ，用上述構造，當將電極熱壓在—起時，藉由樹脂黏 :媸雷f片狀兀件與配線板時，造成樹脂的填充劑殘留在 ^塊電，與焊墊電極間疊置的部分，從而達成電極間良 曰沾Ϊ疋的電性連接，與使電極可做得極小以便容納高數 置的電極。 以上所述者，僅為了用於方便說明本發明之較佳 例，而並非將本發明狹義地限制於該較佳實施例。凡依本
4 5 根8 5 ,' 2
第20頁 4 5 4^8 5 圖式簡單說明 圖1為顯示依照本發明之半導體裝置的剖面圖。 圖2為圖1的半導體裝置的部分切除剖面圖。 圖3為於製造圖1的半導體裝置時使用的半導體片狀元 件的剖面圖。 圖4為顯示圖3顯示之半導體片狀元件的製造方法的側 視圖。 圖5為圖1之半導體裝置的製造方法的側剖面圖。 圖6為圖1之半導體裝置的製造方法的側剖面圖，其顯 示圖5所示之半導體片狀元件以樹脂供應到配線板頂部的 情況。 圖7為圖1之半導體裝,置的製造方法的部分放大側剖面 圖，其顯示凸塊電極與焊墊電極間的熱壓連接。 圖8為顯示凸塊電極與焊墊電極間之疊置的部分放大 側剖面圖。 圖9為顯示依照習知技術之半導體裝置一例的側剖面 圖。 符號說明 1 半導體片狀元件 2 半導體基板 3 電極 4 配線板 5 絕緣基板 6 焊墊電極
第21頁 454gB5 圖式簡單說明 7 樹脂 11 半導體片狀元 12 半導體基板 13 電極 13a 大直徑部 13b 小直徑部 14 配線板 15 絕緣基板 16 焊墊電極 17 樹脂 18 填充劑 19 毛細管 20 金線 2 0a 金球 21 _支持檯 22 樹脂供應設備 23 加熱器 24 真空吸座 2 4a 吸孔 25 加熱器
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Claims (1)

  1. 其中該凸塊電極與該焊墊電極放置j 充劑的該樹脂介於其間，且使該填充劍努 極間的疊置界面部分，該疊置部藉由熱遲 導體片狀元件與配線板以該樹脂黏合。 2. 依申請專利範圍第1項之半導體裝置 f係以軟導電材料所形成，使得其尖端部 控 而其中使該樹脂的該填充劑部分被捕 的3玄尖端部與該焊墊電極之間，該焊墊電 擠以便使疊置部的周緣部向外膨脹。 3. 依申請專利範圍第1項之半導體裝置 凸塊電極與焊墊電極間之疊置部的數量中 於1〇%或以上的該疊置部上。 t依申請專利範圍第1項之半導體裝置 Θ歹留在形成在該凸塊電極與該焊墊電極 心部。 相對，以散佈填 留在形成在該電 而連接，使得半 ，其中該凸塊電 具有一縮束的直 捉在該凸塊電極 極的尖端部被壓 ，其中形成在該 ，該填充劑殘留 ，其中使該填充 間的疊置區的中 ，其中使填充劑 1 ^ •依申睛專利範圍第4項之半導體裝置 y b 5 2, ’、申睛專利範圍 --------------. 殘留在該凸塊電極與該焊夕 少10%或队上㈣域。 電極間之疊置部的表面積的至 6古如依申請專利範圍第5項之半導體装署甘士 充劑在其中的區的比率為㈣丄：置，其中包含該填 電極末端該;t t n=^ M殘留的與形成在該凸塊 坪堅電極間的區的1 0%或以下。 rj •依申請專利範圍第1項之丰遙舻驻 為微粒狀或纖維狀。、+導體凌置，其中該填充劑 8 · —種半 供應其 墊電極上， 線或其附近 .使一形 自其末端縮 近的位置， 使該凸 末端與該焊 施加壓 成在該疊置 保持該 況，同時加 的該疊置部 導體裝置 中散佈填 該配線板 的區域形 成有凸塊 束，並形 以便向外 塊電極的 墊電極之 力’以便 的電極間 凸塊電極 熱至少該 分，並硬 的製造 充劑的 具有一 成大量 電極的 成在半 壓擠該 末端插 間被捕 壓擠該 的區域 與該焊 半導體 化該樹 方法，包 樹脂於形 絕緣基板 的焊塾電 半導體片 導體基板 樹脂； 入樹脂中 捉的填充 凸塊電極 移除該樹 墊電極間 片狀元件 脂，以便 含： 成在一配線板上的焊 ’其上沿著_至少一直 極； 狀元件能夠使其直徑 上與配線板相對並接 ’與該凸塊電極的該 劑中； 的末端部分同時自形 脂’以便疊置電極； 之疊置部分的加壓情 以便熱壓擠該各電極 從而黏合該半導體片 454^85 六、申請專利範圍 狀元件與配線板。 9. 依申請專利範圍第8項之半導體裝置的製造方法，其 中將該半導體片狀元件加熱到介於230 °C至3 0 0 °C之範圍 内。 10. 依申請專利範圍第8項之半導體裝置的製造方法，其 中將該配線板加熱到介於5 0 °C與1 2 0 °C之範圍内。
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