TWI322488B - Semiconductor device, stacked semiconductor device, and manufacturing method for semiconductor device - Google Patents

Semiconductor device, stacked semiconductor device, and manufacturing method for semiconductor device Download PDF

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Publication number
TWI322488B
TWI322488B TW095120501A TW95120501A TWI322488B TW I322488 B TWI322488 B TW I322488B TW 095120501 A TW095120501 A TW 095120501A TW 95120501 A TW95120501 A TW 95120501A TW I322488 B TWI322488 B TW I322488B
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Taiwan
Prior art keywords
semiconductor device
external connection
connection terminal
semiconductor
semiconductor wafer
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TW095120501A
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English (en)
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TW200721399A (en
Inventor
Yuji Yano
Seiji Ishihara
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Sharp Kk
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Publication of TW200721399A publication Critical patent/TW200721399A/zh
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Publication of TWI322488B publication Critical patent/TWI322488B/zh

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  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Description

九、發明說明： 【發明所屬之技術領域】 本發明係關於裝載有半導體晶片之半導體裝置、層積複 數個半導體裝置而成之層積型半導體裝置、以及半導體裝 置之製造方法。 【先前技術】 近年來，伴隨電子機器小型化'輕量化且高功能化發展， 業者要求半導體裝置之高密度封裝化。為響應該要求，例 如於作為曰本公開專利廣報之曰本專利特開平10 135267 號（1998年5月22曰公開）以及作為曰本公開專利廣報之曰本 專利特開2004-172157號（2004年6月17曰公開）中，提出有對 半導體裝置彼此進行層積，以實現高密度化之方法。 於先前之構成中，對半導體裝置彼此進行層積時，上層 半導體裝置之連接端子高度與下層半導體裝置之樹脂密封 高度之關係變得較為重要。 針對該方面’參照圖15〜圖17進行說明。圖15係表示層積 有2個先前之半導體裝置之狀態之剖面圖。 於圖15中，於半導體裝置100上層積有半導體裝置2〇〇。 其中，半導體裝置100具備：底板101，裝載於該底板1〇1上 之半導體晶片103，設置於底板101下面的外部連接端子 107,以及設置於底板101上面之外部連接端子1〇8。半導體 晶片103與底板ιοί藉由導線1〇4而電性連接。又半導體晶 片103與導線104受到樹脂層106覆蓋。另一方面，底板ι〇ι 上設有外部連接端子108之區域並未受到樹脂層1〇6覆蓋， 111791.doc 丄J厶ΖΗδδ 故為暴露狀態。 半導體裝置200除以下情形以外與半導體裝置1〇〇構成相 同：不僅形成有半導體晶片1〇3以及導線1〇4之區域，而且 • 底板101上全部區域均受到樹脂層1 〇6覆蓋。 例如，層積圖15所示之2個半導體裝置1〇〇、2〇〇之情形 時，若半導體裝置200之外部連接端子1〇7之高度8低於半導 體裝置100之樹脂層106之高度t，則半導體裝置2〇〇之外部 Φ .連接端子107與半導體裝置100之外部連接端子108之間會 產生縫隙U，將導致半導體裝置i 〇〇與半導體裝置2〇〇無法連 接。因此，為連接半導體裝置100與半導體裝置20()，必須 具有「半導體裝置200之外部連接端子1〇7之高度s>半導體 裝置100之樹脂層106之高度t」之關係。 因此，若降低半導體裝置2〇〇之外部連接端子1〇7之高度 s，則亦必須降低半導體裝置1〇〇之樹脂層1〇6之高度t。然 而，降低半導體裝置100之樹脂層106之高度t，則要求半導 • 體晶片103薄型化、導線1〇4之低環形化等半導體裝置1〇〇薄 型化之技術，故而存在半導體裝置100製造中技術性難度增 加之問題。同樣之問題亦產生於層積如圖16所示之半導體 裝置之情形中。 圖16係表示層積有2個先前之半導體裝置之狀態之剖面 圖。圖16中，於半導體裝置300上層積有半導體裝置4〇〇。 半導體裝置300中外部連接端子ι〇8形成於半導體晶片1〇3 上，而形成有外部連接端子1 08之區域並未受到樹脂層〗〇6 覆蓋，故而暴露出來。其以外之構成則與上述半導體裝置 11179J.doc 1322488 loo相同。又，半導體裝置400具有與上述半導體裝置2〇〇相 同之構成。 圖17係纟示先前之半導體裝置之製造製程中樹脂密封步 驟之剖面圖。當製造上述半導體裝置3〇〇時，在樹脂密封步 驟中會產生如下問題。亦即，形成有半導體晶片1〇3之外部 連接端子108之區域並未受到樹脂1〇6覆蓋， 蓋其以外之區域，則藉由移轉模進行樹脂密封之== 將如圖17所不，模具50將會直接推壓形成於半導體晶片ι〇3 上且含有導電層X以及絕緣層丫之佈線層1〇8。通常佈線層 108之厚度較薄為50 um左右，且材質難以變形，故而由模 具50所施加之應力不會為佈線層1〇8所完全吸收。因此，對 半導體晶片103施加較強之應力，可能對半導體晶片ι〇3造 成損害。 【發明内容】 本發明係鑒於上述問題點所完成者，其目的之一在於： 提供種下層半導體裝置以及層積型半導體裝置，該等係 於層積何體裝置彼料，較上層所裝載之半導體裝置 之連接端子高度較低，與上層之接合可靠性亦較高，且易 於製造；並有助於半導體裝置之高密度封裝化。 又本么明之其他目的在⑥：具有外部連接端子自樹脂 層露出之構造的半導體裝置中，#由簡單製程而減少對半 導體晶片等之損害。 本發明之半導體裝置為解決上述課題，其特徵在於具 備底板、與上述底板電性連接之半導體晶片、覆蓋上述 J H791.d〇, 1322488 半導體晶片之至少-部分之樹脂層及與上述上述底板電性 連接之第1外部連接端子，上㈣W部連接端子自上述樹 脂層露出，並具有形成與上述樹脂層之表面同一平面之露 出面。
根據上述構成，第Μ部連接端子於與樹脂層之表面同— 面上自樹脂層露出，故而於本發明之半導體裝置上層積半 導體裝置時，即便上層半導體裝置之外部連接端子之高产 較低’亦可確保第W部連接端子與上層半導體裝置之外: 連接端子之連接。亦即，於上層半導體裝置之外部連接端 子以狹小間距排列時，外部連接端子之高度降低，即便於 該情形時，亦不產生被樹脂層阻擔而無法到達第 端子之問題。因此，無須為確保連接而降低樹脂層之高度， 故本發明之半導體裝置與上層之接合可靠性較高，且無須 半導體晶片之冑型化、$線之低環形化等I導體裝置之薄 型化技術’即可簡單製造。
又’替代為了與上層半導體裳置之連接而使半導體晶片 =面所形成之佈線層露出，若使用如上料之第^部連接 鳊子例如即便藉由移轉模樹脂密封半導體裝置時，亦可 減少對半導體晶片之損害。 又，本發明之半導體裝置之製造方法為解決上述課題， 其特徵在於：上述半導體裝置具備底板、與上述底板電性 連接之半導體晶片、覆蓋上述半導體晶片之至少一部分之 樹脂層及與上述底板電性連接之第1外部連接端子；其製造 方法具有封人步驟，其係以上述Ρ外部連接端子自上述樹 I11791.doc 脂層露出’並具有形成與上述樹脂層之表面同一平面之露 出面的方式封入樹脂。 根據上述構成，可製造第i外部連接端子於與樹脂層之表 面同一面上自樹脂層露出之半導體裝置。因此，於該半導 體裝置上層積半導體裝置時，即便上層半導體裝置之外部 連接端子之高度降低，亦可確保外部連接端子彼此之連 接。亦即，於上層半導體裝置之外部連接端子以狹小間距 排列時’外部連接端子之高度降低，即便於該情形時，亦 不產生無法到達藉由該製造方法而獲得之半導體裝置之外 部連接端子的問題。因此，本發明之半導體裝置之製造方 法中，無須為確保與上層半導體裝置之連接而降低樹脂層 故而無須半導體晶片之薄型化'導線之低環形化 料導體裝置之薄型化技術’即可簡單製造與上層之接合 可靠性較高之半導體裝置。 B之接。 又’替代為了與上層半導體步署夕、击Μ 矣而裕Μ 干等體裝置之連接而使半導體晶片 子“夕心从 如上所述，若形成外部連接端 損害。 貝]可減少對半導體晶片之 又本發明之半導體裝置之製造太、土 豆特徵在於.μ+. 方法為解決上述課題， /、寺戍在於.上述封入步驟包括 部連接端子之表面平W具而使上述第1外 遠接料白&使上述平坦之第！外部 連接&子自上述樹脂層露出，並具有形… Ρ 表面同一平面之 有形成與上述樹脂層之 十面之路出面的方式封入樹 根據上述構成，藉由 之步驟。 錯由推塵拉具而使外部連接端子變形後 JI1791.doc 1322488 =樹脂之簡單步驟’可使外部連接端子於與樹脂層之表 5面上自樹脂層露出，故而易於製造半導體裝置。 本發明之其他目的、特徵及優點’藉由 ； 當可充分瞭解。又，本發明之優fi 己戰 明當可瞭解。 《優點鞴由以下參照附圖之說 【實施方式】 基於圖1至圖14對本發明之一實施形態進行說明，如下所 :。再者，以下說明中’圖式中以上下為基準使用「上面」 下面」「下方」「上方」之表示，此係為了說明之方便， 並非係限定使哪一個面為朝上（或者下）者。 圖1係表示本實施形態之半導體褒置之構成的剖面圖。 又，圖2係表示自上方觀察該半導體裝置之狀態的平面圖。 如圖1所示，本實施形態之半導體裝置20具備··底板卜 經由點接層2而裝載於該底仏之半導體晶片3,以及設置 之曰下面之外部連接端子(第2外部連接端子)7。底板1 半導體晶片3藉由導線4而電性連接。 於半導體晶片3之上面形成佈線層9,且於佈線層9之上形 成作為導電性突起物之外部連接端子（第1外部連接端 子，該外部連接端子8,如圖2所示，以區域陣列狀排列。 佈線層9與底板1藉由導線4而連接。 又，半導體裝置2〇藉由樹脂層6而密封。具體而言，樹脂 層6覆蓋底板！之上面、純層2、半導體晶片3、導線4、以 ，佈線層9。至於樹脂層6之材料，例如較理想的是使用環 氧樹脂 '矽樹脂等，並無特別限定。
• 1U HI791.doc 1322488 本貫知开> 態之半導體裝置2 〇之特徵在於：外部連接端子8 於與樹脂層6之表面之同一面上自樹脂層6露出。換言之， 外部連接端子8之表面（露出面）與樹脂層6之表面形成同一 平面又，亦可使外部連接端子8之表面與樹脂層6之表面 為相同高度。 此處，所謂「同一面」，並非嚴格為同一，為獲得以下所 說明之效果，亦可為大致同一面。
藉由使外部連接端子8之表面如上所述自樹脂層6露出，
可於半導體裝置20之表面形成外部連接端子8。因此，於半 導體裝置20上層積半導體裝置之情形時，即便上層半導體 裝置之外部連接端子之高度較低，亦可確保半導體裝置Μ 之外部連接端子8與上層半導體裝置之外部連接端子之連 接。亦即，即便為更高密度集成而降低上層半導體裝置之 外部連接端子之高度，亦不產生被樹脂層6阻擋而無法到達 外部連接端子8之問題^此，無須為確保連接而降低樹脂 層6之高度，故本實施形態之半導體裝置加，與上層之接合 可靠性較高，且可無須半導體晶片3之薄型化、導曰線4之: 環形化等半導體裝置2〇之薄型化技術，即可簡單製造。 又’根據本實施形態之半導體裝置2〇,半導體晶片3之表 ，所形成之佈線層9，並不自樹脂層6露出（由樹脂層⑼ 盍）。因此，進行樹脂密封時，無須藉由模具堵塞半導體晶 片3之表面上所形成之佈線層9。因此，可減少樹脂密封: 對半導體晶片3之損害。 因外部連接端子8 又’本實施形態之半導體裝置2〇中 ni79l.doc 1322488 經由佈線層9而與底板1電性連接，故而可易於確保半導體 裝置20與上層半導體裝置之電性連接。 又’本實施形態之半導體裝置20中，因佈線層9形成於半 導體晶片3之上面’故而可實現半導體裝置2〇之薄型化。 繼而，對本實施形態之半導體裝置20之製造方法進行說 明。圖3(a)〜圖3(c)係表示本實施形態之半導體裝置2〇之製 造製程之剖面圖。
首先，如圖3(a)所示，於底板1上，經由黏接層2而裝載預 先形成有佈線層9以及外部連接端子8之半導體晶片3。再 者，亦可於底板1上裝載預先形成有佈線層9之半導體晶片3 後，裝載外部連接端子8。其後，藉由導線4而使半導體晶 片3與底板1電性連接，藉由相同之導線4，使佈線層9與底 板1電性連接。 * 繼而，以外部連接端子8於樹脂層6之表面之同一面上自 樹脂層6露出之方式’封入樹脂(封入步驟)。此處，如圖3⑻ 所不，推壓模具50而使外部連接端子8變形。亦即，藉由與 外部連接端子8接觸之面推料坦之模具5()，使外部連接端 子8之上面平坦。為易於進行該步驟，外部連接端子8較好 的是含有易於變形之材料。至於易於變形之材料，例如可 列舉焊錫或銅。 ^吏用㈣作為外部連接料8之材料之情料，若模具溫 錫之心’封人樹脂時焊㈣解並流失。故而樹 "、封時之模具溫度通常為150〜贿之間。因此，較好的 是採用溶點為20〇。(：以上之焊錫。 111791.doc 1322488 =後’如峰)所^以外部連接端子8於樹脂層6之表面 之同7面自樹脂層6露出之方式，封入樹脂。 ^於底板1之下面形成外部連接端子7。再者，外部 預::::之形成並不限於樹脂密封後’亦可於樹脂密封前 如'，本實施形態之半導體裝置2〇之製造方法包含封入 、’^封人步驟可使用模具而進行。根據上述製造方 矣可易於使半導體裝置2〇之外部連接端子8於樹脂層6之 表面：：—面自樹脂層露出’故而可易於製造半導體裝置 ’上述說明中使用模具50，而上述製造方法，若 使外部連接端子8自樹脂層6露出（亦即，若於半導體裳置2〇 之表面形斜部連接端子8)，則並不限定於使用模具5〇。 以下表示本實施形態之半導體裝置2〇之變形例。再者， 關於與上述構件具有相同功能之構件，添加相同符號 略其說明。 (變形例1) 圖4孫表示變形例1之半導體裝置、之構成的剖面圖。如 圖4所示，於半導體裝置心中，藉由使用凸㈣而代替使 用導線4之倒裝晶片接合法連接有半導體晶片3與底板卜 除以上方面外’半導體裝置2〇a具有與上述半導體裝置 相同之構成。 如此，本變形例之半導體裝置2〇a中，可藉由使用倒裳晶 片接合法’而使半導體晶片3更高密度地封裝於底板卜 該半導體裝置W，除藉由倒裝晶片接合法連接半導體晶 111791.doc 14 片3/、底板1以外，可藉由與上述半導體裝置20之製造方法 相同之方式製造。 (變形例2) 圖5係表示變形例2之半導體裝置2〇b之構成的剖面圖。上 述半導體裝置2G ' 2Ga中，佈線層9直接形成於半導體晶片3 上，而半導體裝置20b中，則如圖5所示，佈線層9形成於支 持體11上，並經由黏接層12而裝載於半導體晶片3上。藉由 使佈線層9形成於支持體u上並經由黏接層以將其裝載於 上述半導體晶片3上，半導體晶片3所受到之應力將藉由支 寺體11以及黏接層12而得到減輕，故而可進而減少對半導 體晶片3之損害。支持體丨丨以及黏接層12為絕緣體，若採用 彈丨生率較低之材料，則可進一步吸收應力，減少對半導體 晶片3之損害。 支持體11與支持體11上之佈線層9之形成區域亦可具有 大於半導體晶片3之面積。換言之，佈線層9之大小亦可大 於半導體晶片3»若佈線層9形成於大於半導體晶片3之區 域即便上層半導體裝置之外部連接端子排列區域大於下 層半導體晶片’亦可層積上下層半導體裝置。 半導體晶片3與底板1藉由導線4而連接。另一方面，佈線 層9與底板1藉由導線5而連接。 半導體晶片3與黏接層12之間設置有導線4，而並無充分 工間’故而導線4以通過黏接層12之内部之方式而設置。換 言之’導線4包入黏接層因導線4包入黏接層12,故而 具有可抑制樹脂密封時之導線變形。 H1791.doc 1322488 除去以上之點，半導體裝置2〇b具有與上述半導體裝置μ 相同之構成。因&，至於形成、變形外部連接端子8、樹脂 密封之方法，可使用與上述半導體裝置20之製造方法相同 之方法。 (變形例3) 圖6係表示變形例3之半導體裝置2〇c之構成的剖面圖。半 導體裝置20c之構成，與變形例2之半導體裝置勘大致相 同’如圖6所示’其不同點在於：於半導體晶片3上經由黏 接層18而設置有分隔件層13。 藉由設置分隔件層13,於半導體晶片3與黏接層12之間， 為設置導線4而可確保充分之空間，本變形例之半導體裝置 20c中，導線4並不通過黏接層12之内部，可提高半導體晶 片3與導線4之連接之可靠性。進而，支持體丨丨以及分隔件 層1 3中使用導電性材料，提高散熱性。 該半導體裝置20c，至於形成、變形外部連接端子8、樹 脂密封之方法，亦可使用與上述半導體裝置2〇之製造方法 相同之方法。 (變形例4) 圖7係表示變形例4之半導體裝置2〇d之構成的剖面圖。如 圖7所示，與變形例2之半導體裝置20b不同，半導體裝置2〇d 中半導體晶片3與底板1係藉由使用凸塊】〇之倒裝晶片接 &法而連接。除此以外之構成與變形例2之半導體裝置2〇b 相同。 如此，本變形例之半導體裝置20(1中，藉由使用倒裝晶片 111791.doc * 16 - 接合法，半導體晶片3可更高密度地封裝於底板卜亦即， 無須如變形例2增厚黏接層12、或者如變形们設置分隔件 層13,故而可實現半導體裝置之薄型化。 該半導體裝置2〇d，除半導體晶片3與底板！藉由倒裝晶片 接合法而連接以外’可藉由與上述半導體裝置20之製造方 法相同之方法製造。 (變形例5) 圖8係表示變形例5之半導體裝置20e之構成的剖面圖。上 述半導體裝置2G〜2Gd中’外部連接端子8經由佈線層9而設 置於半導體晶3上。相對於此，半導體裝置2()_，如圖s 所不外。P連接端子8直接設置於底板u而電性連接。 除了以上之點，半導體裝置2〇e具有與上述半導體裝置別 相同之構成。 如此本變形例之半導體裝置20d中，外部連接端子8並 非形成於半導體晶片3之上方，而是形成於底板丨上。因此， 樹月曰密封時因模具而向外部連接端子8施加之應力並不施 加於半導體晶片3上，故而可進而減少對半導體晶片3之損 害°又’具有可降低半導體裝置之高度之優點。 忒半導體裝置20d，至於形成、變形外部連接端子8、樹 月曰密封之方法，亦可使用與上述半導體裝置20之製造方法 相同之方法。 (變形例6) 圖9係表示變形例6之半導體裝置20f之構成的剖面圖。半 導體裝置20f亦可與變形例5之半導體裝置2〇e相同外部連 111791.doc 17 1322488 接端子8直接設置於底板1上而電性連接。 與半導體裝置20e之不同點在於：如圖9所示，（ι)半導體 晶片3設置於底板！之開口部16，（2)層積2個半導體晶片^並 为別經由導線4以及佈線層9與底板1電性連接。 除以上之點，半導體裝置2〇f具有與變形例5之半導體裝 置20e相同之構成。 如此，本變形例之半導體裝置2〇f，因半導體晶片3設置 φ 於底板1之開口部16，故而相比於半導體晶片3設置於底板j 上之情形’可以更高密度封裝半導體晶片3。
再者，本變形例中層積2個半導體晶片3，所裝載之半導 體晶片3之數量並不限於2個。裝载H 時’相比於半導體晶片3設置於底板之情形，可 導體裝置之薄型化，故而可實現高密度化。又，層積3個以 上之半導體晶片3之情形時，相比於相同數量之半導體晶片 3設置於底板1上之情形，可以更高密度封裝半導體晶片3。 • @半導體裝置2Gf’至於形成、變形外部連接端子8、樹 脂密封之方法，亦可使用與上述半導體裝置2〇之製造方法 相同之方法。 (變形例7) 圖1〇係表示變形例7之半導體裝置20g之構成的剖面圖。 半導體裝置20g與變形例5之半導體裝置2〇e相同，外部連接 端子8直接設置於底板丨上而電性連接。 /、半導體裝置20e之不同點在於：如圖1〇所示，（1)半導體 晶片3設置於底板！之凹部17，（2)層積2個半導體晶片3並分 1】1791.<j〇c -18- 1322488 別經由導線4而與底板!電性連接。本變形例中，下層半導 體晶片3與底板lit不經由佈線層9而是藉由導線^接電性 連接，亦可經由佈線層9。又，上層半導體晶片3與底板㈣ 由饰線層9而藉由導線4電性連接，亦可不經由佈線層9而直 接與底板1電性連接。 除以上之點，半導體裝置2〇g具有與變形例5之半導體裝 置20e相同之構成。 如此，本變形例之半導體裝置2〇f，因半導體晶片3設置 於底板1之凹部17，故而相比於半導體晶片3設置於凹部17 以外之底板1上之情形，可以更高密度封裝半導體晶片3。 又，相比於底板1上設置有開口部16之變形例6之構成， 底板1上設置凹部17之情形時，半導體裝置之機械強度之降 低較小。 該半導體裝置20g，至於形成、變形外部連接端子8、樹 脂密封之方法，亦可使用與上述半導體裝置2〇之製造方法 相同之方法。 (變形例8) 圖11係表示變形例8之半導體裝置20h之構成的剖面圖。 如圖11所示’半導體裝置20h中，樹脂層6之表面並不平坦， 設置有外部連接端子8之區域14中的樹脂層6之表面，低於 其以外之區域1 5中的樹脂層6之表面（亦即，於底板1側凹 下）。其以外之構成與半導體裝置20相同。 如此’藉由使設置有外部連接端子8之區域中的樹脂層6 之表面凹下，於半導體裝置20h上層積半導體裝置時，可使 H1791.doc •19· =導體裝置之外部連接端子之一部分收納於， 故而可進而實現高密度化。 該半導體裝置隱’至於形成、變形外部連接端子8、樹 月社封之方法，可使㈣上述半導體裝m造方法相 。之方法。其中’至於模具50’例如使用如圖⑺斤示之、 使對應於樹脂層6之表面之凹處的部分突出之形狀者。 (變形例9) 圖12係表示變形例9之半導體裝置2〇i之構成之剖面圖。 如圖12所不，半導體裝置2〇i亦與變形例^之半導體震置織 相同，設置有外料接端子8之區域14中的樹脂層6之表 面，低於其以外之區域15中的樹脂層6之表面（亦即，於底 板1側凹下）。 _ 半導體裝置20i中，外部連接端子8直接設置於底板！上並 電性連接。因此，半導體裝置通甲設置有外部連接端子8 之區域14之兩側具有其以外之區域15，半導體裝置2〇i申， 設置有外部連接端子8之區域14位於其以外之區域15之兩 側。 除以上之點，半導體裝置2〇i具有與變形例8之半導體裝 置20h相同之構成。 如此，藉由使外部連接端子8並不形成於半導體晶片3之 上方而是开〉成於底板1上，可防止樹脂密封時因模具而對外 部連接端子8所施加之應力施加到半導體晶片3上，故而可 進而減少對半導體晶片3之損害。 又，藉由使設置有外部連接端子8之區域中的樹脂層6之 Π 1791.doc -20· 表面凹下，於半導體裝置20i上層積半導體裝置時，可使上 層半導體裝置之外部連接端子之—部分收納於該凹處，故 而可進一步實現高密度化。 6亥半導體裝置20i，至於形成、變形外部連接端子8、樹 脂密封之方法，亦可使用與上述半導體裝置2〇之製造方法 同方法其中，至於模具5 0，使用使對應於樹脂層6之 表面之凹處的部分突出之形狀者。 (變形例10) 圖13係表示變形例1〇之半導體裝置2〇j之構成的剖面 圖。如圖u所示，半導體裝置20j具備：底板丨，該底板1上 所層積之3個半導體晶片3a〜3c，以及設置於底板丨之下面之 外部連接端子（第2外部連接端子）7。 下層半導體晶片3a經由黏接層而設置於底板1上，並藉由 使用凸塊10之倒裝晶片接合法而與底板1電性連接。 中層半導體晶片3b經由黏接層而設置於下層半導體晶片 3a上，並藉由導線4而與底板1電性連接。連接中層半導體 晶片3b與底板1之導線4,通過設置於中層半導體晶片讣上 之黏接層的内部。 上層半導體晶片3c經由黏接層而設置於中層半導體晶片 3b上，並藉由導線4而與底板1電性連接。於上層半導體曰日 片3c上經由黏接層而設置有分隔件層13，故而連接上層半 導體晶片3c與底板1之導線4並不通過黏接層之内部。 於分隔件層13上經由黏接層而設置有支持體i丨，該支持 體11上經由佈線層9而形成有作為導電性突起物之外部連 111791.doc -21 · 1322488 接端子（第1外部連接端子）8β該外部S接端子8與圖2所示者 相同，以區域陣列狀排歹,j。佈線層9與底板旧由導線5而連 接。 又半導體裝置2〇j藉由樹脂層6而密封。具體而言，形 成於底板1之上面側之各構件中，除外部連接端子8以外全 部由樹脂層6覆蓋。 \ 半導體裝置20j亦與上述半導體裝置2〇相同，外部連接端 子8於樹脂層6之表面之同一面自樹脂層6露出。換言之，外 部連接端子8之表面與樹脂層6之表面形成同一面。又，外 部連接端子8之表面與樹脂層6之表面亦可具有相同高度。 此處，所謂「與樹脂層6之表面同一面」，並非嚴格為同一， 亦可為大致同一面。 如以上所述，本變形例之半導體裝置2〇j中，裝載有3個 半導體晶片3a〜3c，故而可進一步實現高密度化。 再者本變形例中為層積3個半導體晶片3，層積半導體 晶片3之數量並非限於3個，2個亦可、4個以上亦可。又， 半導體晶片3之封裝方法亦無特別限定。 該半導體裝置20j，至於形成、變形外部連接端子8、樹 脂密封之方法，可使用與上述半導體裝置2〇之製造方法相 同之方法》 繼而，對層積型半導體裝置進行說明。圖14係表示本實 施形態之層積型半導體裝置4〇之構成之剖面圖。 如圖14所示，層積型半導體裝置4〇於上述半導體裝置2〇 上層積上述半導體裝置2〇i，進而於其上層積其他半導體裝 IM79l.doc •22· 1322488 置30。 半導體裝置20之外部連接端子8，與帛導體裝置2〇i之外 部連接端子7接合，藉此可使半導體裝置2〇與半導體裝置 20i電性連接。 半導體裝置30於下面具備外部連接端子7。半導體裝置 20i之外部連接端子8，與半導體裝置3〇之外部連接端子7接 合，藉此可使半導體裝置20i與半導體裝置3〇電性連接。 如上所述’半導體裝置2〇之外部連接端子8於樹脂層6之 表面之同φ自树脂層6露出。因此’即便上層半導體裝置 20i之外部連接端子7之高度較低，亦可確保半導體裝㈣ 之外部連接端子8與半導體裝置2〇i之外料接端子7之連 接。同樣，半導體裝置20i之外部連接端子8亦於樹脂層6之 表面之同-面自樹脂層6露出。因此，即便上層半導體裝置 3〇之外部連接端子7之高度較低，亦可確保半導體裝置20i 之外部連接端子8與半導體裝置3G之外部連接端子7之連 接。 因此，以上述方式層積半導體裝置2〇、2〇卜3〇，且相互 電性連接而成之層積型半導體裝置4()，不會降低連接穩定 性而降低外部連接端子7，故而可實現半導體裝置之高密度 化。 再者，上述說明中層積之半導體裝置之數量設為3個，並 不限於此，2個亦可，4個以上亦可。 又，上述說明中層積半導體裝置2〇、2〇卜3〇，亦可自半 導體裝置2〇〜叫中所選擇之1個或者複數個半導體裝置 111791.doc •23· 1322488 上層積半導體裝置30。或者’亦可層積 20〜20j所選擇之複數個半導體裝置彼此。 ㈣裝置 本發明並非僅限於上述實施形態，於請求項所示之範圍 内亦可進订各種變更。亦即，組合於請求項所示之範圍内 經箱當變更之技術方法而得的實施形態亦屬於本發明之 技術範圍。
本發明之半導體裝置，如上所述，其特徵在於具備：底 板’與上述底板電性連接之半導體晶丨，至少覆蓋上述半 導體晶片之-部分之樹脂層，以及與上述底板電性連接之 第1外部連接端子，且上述第丨外部連接端子於上述樹脂層 之表面之同一面自上述樹脂層露出。
根據上述構成，因第丨外部連接端子於樹脂層之表面之同 一面上自樹脂層露出，故而於本發明之半導體裝置上層積 半導體裝置時，即便上層半導體裝置之外部連接端子之高 度較低，亦可確保第1外部連接端子與上層半導體裝置之外 部連接端子之連接。亦即，於上層半導體裝置之外部連接 端子以狹小間距排列之情形時，外部連接端子之高度降 低，即便於該情形時，並不產生被樹脂層阻擋而無法到達 第1外部連接端子之問題。因此，因無須為確保連接而降低 樹脂層之咼度，故而本發明之半導體裝置，與上層之接合 可罪性較咼，且無須半導體晶片之薄型化、導線之低環形 化等半導體裝置之薄型化技術，即可簡單製造。 又’替代為與上層半導體裝置連接而使半導體晶片表面 所形成之佈線層露出，使用如上所述之第丨外部連接端子， 111791.doc •24· 丄叫488 例如藉由移轉模，即便於樹脂密封半導體裝置之情形時， 亦可減少對半導體晶月之損害。 本發明之半導體裝置中’上述第1外部連接端子亦可經由 佈線層而與上述底板電性連接。 如此’藉由使第1外部連接端子經由佈線層而與底板電性 連接’可易於確保本發明之半導體裝置與上層半導體裝置 之電性連接。 又，本發明之半導體裝置中，上述佈線層亦可形成於上 述半導體晶片之、上述第1外部連接端子侧之面。 藉由使佈線層直接形成於半導體晶片之、第丨外部連接端 子側之面，相比於後述之經由支持體、黏接層之構造可實 現半導體裝置之薄型化。 又，本發明之半導體裝置中，亦可於支持體上形成上述 佈線層，並將其裝載於上述半導體晶片上。 藉由於支持體上形成佈線層、並經由黏接層將其裝载於 ^述半導體晶片上，可藉由支持體以及黏接層減輕施加至 半導體晶片之應力，故而可減少對半導體晶片之損害。 又，本發明之半導體裝置中，設置有上述佈線層之區域 之面積亦可大於上述半導體晶片之面積。換言之，上述佈 線層之大小亦可大於上述半導體晶片之大小。 如此藉由佈線層形成於大於半導體晶片之區域，即便上 層半導體裝置之外部連接端子排列區域大於下層半導體晶 月，亦可層積上下層半導體裝置。 曰曰 又，本發明之半導體裝置中，上述第1外部連接端子亦可 lil791.doc -25- 1322488 形成於底板上。 可藉由使第1外部連接端子形成於底板上而並非形成於 半導體晶片之上方’而防止樹脂密封時模具對第1外部連接 端子所施加之應力施加於半導體晶片上，故而可進而減少 對半導體晶片之損害。又，具有可降低半導體裝置高度之 優點。 又，於本發明之半導體裝置中，上述半導體晶片亦可設 置於上述底板之開口部。 如此，可藉由將半導體晶片設置於底板之開口部，而與 將半導體晶片設置於底板上之情形相比，以更高密度封穿 半導體晶片。 又，於本發明之半導體裝置中，上述半導體晶片亦可設 置於上述底板之凹部。 如此’可藉由將半導體晶片設置於底板之凹部，而與將 半導體晶片設置於底板上之情形相比，以更高密度封事半 導體晶片。 又，於本發明之半導體裝置中，設置有上述第1外部連接 端子之區域中樹脂層之表面，亦可相對於其以外區域中之 樹脂層表面凹向底板側。換言之，排列有上述第1外部連接 端子之區域之樹脂面亦可低於其他區域之樹脂面。 如此，藉由使設置有第1外部連接端子之區域中之樹脂層 表面凹陷，而於本發明之半導體裝置上層積半導體裝置 時，可將上層半導體裝置之外部連接端子之一部分收納於 該凹處，故而可進而實現高密度化。 111791.doc • 26， UZZ466 又，本發明之半導體裝置中 含有焊錫。 上述第1外部連接端子亦可 藉由使用易於變形之材料之焊錫形成第^外部連接端 子’可易於使第丨外部連接端子變形，故而易於使第！外部 連接端子於樹脂層之表面之同—面自樹脂層露出。 ’上述焊錫之熔點溫度較好
樹月曰达封時之模具溫度，通常為15〇〜2〇〇。〔之間故而若 上述焊錫之熔點溫度為細1以上，可減少模具溫度超過谭 錫之熔點而使焊錫熔解並流失之危險性。 又，本發明之半導體裝置中，上述第1外部連接端子亦可 含有銅。 藉由由易於變形之材料之銅形成第】外部連接端子，可易 於使第1外部連接端子變形，故W於使心卜料接端子 於樹脂層之表面之同一面自樹脂層露出。
又，本發明之半導體裝置中 的是200°C以上。 又’本發明之半導體裝置亦可具備複數個上述半導體晶 片且各半導體晶片與底板電性連接。 藉由於樹脂層内裝載複數個半導體晶片，可進一步實現 高密度化。 又’本發明之層積型半導體裝冑，如上所4，其特徵在 於：上述任一之半導體裝置中，層積進而具備第2外部連接 端子之上述任一之半導體裝置，該等半導體裝置藉由第丄外 部連接端子與第2外部連接端子之接合而相互電性連接。 根據上述構成，半導體裝置彼此藉由第1外部連接端子與 111791.doc -27- 第2外部連接端子之接合而相互電性連接，可實現進一步之 高密度化。 又’本發明之層積型半導體裝置，如上所述，其特徵在 於.上述任一之半導體裝置中，層積具備第2外部連接端子 之其他半導體裝置，且該等半導體裝置藉由第丨外部連接端 子與第2外部連接端子之接合而相互電性連接。 根據上述構成，半導體裝置彼此藉由第丨外部連接端子與 第2外部連接端子之接合而相互電性連接，可實現進一步之 高密度化。 又，本發明之半導體裝置之製造方法，如上所述，其特 徵在於：其是半導體裝置是製造方法，上述半導體裝置具 備底板、與上述底板電性連接之半導體晶片、至少覆蓋上 述半導體晶片之一部分之樹脂層、以及與上述底板電性連 接之第1外部連接端子，且上述半導體裝置之製造方法包含 封入步驟，以第1外部連接端子於樹脂層之表面之同一面自 上述樹脂層露出之方式，封入樹脂。 根據上述構成，可製造第1外部連接端子於樹脂層之表面 之同一面自樹脂層露出之半導體裝置。因此，於該半導體 裝置上層積半導體裝置時，即便上層半導體裝置之外部連 接端子之高度較低，亦可確保外部連接端子彼此之連接。 亦即，於上層半導體裝置之外部連接端子以狹小間距進行 排列之情形時，外部連接端子之高度降低，即便於該情形 時，並不產生無法到達藉由該製造方法而獲得之半導體裝 置之外部連接端子之問題。因此，本發明之半導體裝置之 111791.doc •28· 1322488 製造方法中，無須為確保與上層半導體裝置之連接而降低 樹脂層之高度，且無須半導體晶片之薄型化、導線之低環 形化等半導體裝置之薄型化技術，即可簡單製造與上層之 接合可靠性較高之半導體裝置。 又，替代為與上層半導體裝置連接而使半導體晶片表面 上所形成之佈線層露出之方法，如上所述，若形成外部連 接端子並使之變形後進行樹脂密封，可減少對半導體晶片 之損害。
又，本發明之半導體裝置之製造方法，如上所述，其特 徵在於上述封入步驟包含：推壓模具並使上述第丨外部連接 端子之表面平坦之步驟；以及以使上述平坦第丨外部連接端 子於樹脂層之表面之同一面自樹脂層露出之方<，封入樹 脂之步驟。 根據上述構成，藉由推壓模具並使外部連接端子變形後 封入樹脂之簡單步驟，可使外部連接端子於樹脂層之表面 之同一面自樹脂層露出，故而可易於製造半導體裝置。 又，本發明之半導體裝置之製造方法中，亦可進而包含 對上述模具增加上述外部連接端子之熔點以下之熱的步 驟。 ”’、 藉由使增加於模具之熱設為外部連接端子之熔點以下， 可減少因模*溫度超過焊錫之溶點而使焊錫炫解並流失之 危險性^ 子於 之半 本發明之半導體裝置，如上所述，因第丨外部連接端 樹脂層之表面之同—面自樹脂層露出，故而於本發明 111791.doc -29· ^22488 =置上層積半導體裝置時’即便上層半導體裝置之外 “子之南度較低’亦可確保以外部連接端子愈上層 ::體裝置之外部連接端子之連接。因此，因無須為確： 連接而降低樹脂層之高度，故而本發明 上層之接合可靠性較高，且因無須半導趙晶月二置化與 化等半導雜裝置…化技術故而可實現簡 又，替代為與上層半導體裝置連接而使半導體晶片表面 上㈣成之佈線層露出之方法，若制如上述之第丨外部連 接端子，即便於例如藉由移轉模而進行樹脂密封之情形 時，亦可實現減少對半導體晶片之損害之效果。 *業者應明確，發明之詳細說明項中所開發之具體實施形 態或者實施例’均屬於本發明之技術内容，但並非僅限於 上述具體例而進行狹義解釋者，於本發明之精神以及以下 所揭示之專利請求項之範圍内，可實施各種變更。
【圖式簡單說明】 圖1係表示本發明之實施形態之半導體裝置之構成的剖 面圖。 圖2係表示自上方觀察圖i之半導體裝置之狀態的平面 圖。 圖3(a)係表示本發明之實施形態之半導體裝置之製造製 程的剖面圖。 圖3(b)係表示本發明之實施形態之半導體裝置之製造製 程的刮面圖。 111791.doc • 30- 圖3(c)係表示本發明之實施形態之半導體裝置之製造製 程的剖面圖。 圖4外 '、衣不本發明之實施形態之、變形例1之半導體裝置 之構成的剖面圖。 圖5係表示本發明之實施形態之、變形例2之半導體裝置 之構成的剖面圖。 圖6係表示本發明之實施形態之、變形例3之半導體裝置 之構成的剖面圖。 圖7係表示本發明之實施形態之、變形例4之半導體裝置 之構成的剖面圖。 圖係表示本發明之實施形態之、變形例5之半導體裝置 之構成的剖面圖。 圖9係表示本發明之實施形態之、變形例6之半導體裝置 之構成的剖面圖。 圖1 〇係表示本發明之實施形態之、變形例7之半導體裝置 之構成的剖面圖。 圖1係表示本發明之實施形態之、變形例8之半導體裝置 之構成的剖面圖。 圖2係表示本發明之實施形態之、變形例9之半導體裝置 之構成的剖面圖。 圖13係表示本發明之實施形態之、變形例1〇之半導艚 置之構成的剖面圖。 ^ 圖14係表示本發明之實施形態之層積型半導體裝置之構 成的剖面圖。 111791.doc 1322488 係表示層積2個先前之半導體裝置之狀態的剖面圖。 圖16係表示層積2個先前之半導體裝置之狀態的剖面圈。 圖17係表示先前之半導體裝置之製造製程中樹脂密封# 驟之剖面圖。 ^ 【主要元件符號說明】
1，101 底板 2 ’ 12 ， 18 黏接層 3 ， 3a ， 3b ， 3c ， 103 半導體晶片 4 ’ 5 ， i〇4 導線 6，106 樹脂層 7 ， 8 ， 107 ， 108 外部連接端子 9，108 佈線層 10 凸塊 11 支持體 13 分隔件層 14，15 區域 16 開口部 17 凹部 20 ， 20a ， 20b ， 20c ， 半導體裝置 20d，20e，20f，20g， 20h，20i，20j，100， 200 ， 300 ， 400 30 其他半導體裝置 40 層積型半導體裝置 111791.doc -32· 1322488 50 模具 s J t 高度 u 縫隙 X 導電層 y 絕緣層
111791.doc •33-

Claims (1)

  1. 赀年$月”曰修正表 第095120501號專利申請案 中文申請專利範圍替換本(98年3月） 十、申請專利範圍： 1. 一種半導體裝置，其具備： 底板； 半導體晶片，其與上述底板電性連接； 樹月a層，其覆蓋上述半導趙晶片之至少一部分； 第1外部連接端子，其與上述底板電性連接； 第2外部連接端子，其與上述底板電性連接配置於扶 持上述底板與上述第】外部連接端子對面側之位置：及 支持體，形成有使上述第丨外部連接端子與上述底板電 性連接用之佈線層， 上述第1外部連接端子於與上述第丨外部連接端子之周 圍的上述樹脂層表面同一之面上自上述樹脂層露出， 上述支持體經由黏接層載裝至上述半導體晶片上，同 時設置有上述佈線層之區域的面積較上述半導體晶片 大，於上述半導體晶片之上述支持體側連接有與上述底 板電性連接用之導線，上述導線係以通過上述黏接層之 内部之方式而設置。 2_如請求項】之半導體裝置，其中上述第〗外部連接端子經 由佈線層，與上述底板電性連接。 3.如請求項2之半導體裝置，其令上述佈線層形成於上述半 導體晶片之上述第1外部連接端子側之面上。 4·如請求項2之半導趙裝置，#中上述佈線層形成於支持趙 上’且裝載於上述半導體晶片上。 5.如請求項4之半導體裝置’其中設置有上述佈線層之區域 111791-980327.doc 1322488 之面積大於上述半導鱧晶片之面積。 6. 如請求項〗之半導體裝置，其中上述第丨外部連接端子形 成於上述底板上。 7. 如請求項6之半導體裝置，其中上述半導體晶片設置於上 述底板之開口部。 8. 如請求項6之半導體裝置，其中上述半導體晶片設置於上 ’述底板之凹部。 9. 如請求項丨至8中任一項之半導體裝置，其中設置有上述 • 第1外部連接端子之區域中的上述樹脂層之表面相對於 其以外之區域中的上述樹脂層表面，係凹陷於底板側。 10. 如請求項1至8_任一項之半導體裝置，其中上述第i外部 連接端子含有焊錫。 U，如請求項10之半導體裝置，其中上述焊錫熔點為20(TC以 上0 12.如請求項丨至8中任一項之半導體裝置，其中上述第】外部 連接端子含有銅。
    如請求項1至8中任-項之半導體裝置，其中具備複數個 上述半導體晶片，且各半導體晶片與上述底板電性連接。 —種層積型半導體裝置，其於下述半導體裝置上層積有 於上述半導體裝置中進而具備第2外部連接端子之半導 體裝置； 該等半導體裝置藉由趵外部連接端子與第2外部連接 端子之接合而相互電性連接； 而上述半導體裝置具備： 11179l-980327.doc 底板； 半導體晶片，其與上述底板電性連接； 樹脂層，其覆蓋上述半導體晶片之至少一部分； 第1外部連接端子，其與上述底板電性連接； 第2外部連接端子，其與上述底板電性連接配置於挾 持上述底板與上述第1外部連接端子對面側之位置；及 支持體，形成有使上述第丨外部連接端子與上述底板電 性連接用之佈線層， 上述第1外部連接端子於與上述第丨外部連接端子之周 圍的上述樹脂層表面同一之面上自上述樹脂層露出， 上述支持體經由黏接層載裝至上述半導體晶片上，同 時設置有上述佈線層之區域的面積較上述半導體晶片 大，於上述半導體晶片之上述支持體側連接有與上述底 板電性連接用之導線，上述導線係以通過上述黏接層之 内部之方式而設置。 15. 一種層積型半導體裝置，其於下述半導體裝置上層積有 具備第2外部連接端子之其他半導體裝置，且該等半導體 裝置藉由第1外部連接端子與第2外部連接端子之接合而 相互電性連接； 而上述半導體裝置具備： 底板； 半導體晶片，.其與上述底板電性連接； 樹脂層，其覆蓋上述半導體晶片之至少一部分； 第1外部連接端子，其與上述底板電性連接； 111791-980327.doc 1^22488 第2外部連接端子，其與上述底板電性連接，配置於挾 持上述底板與上述第1外部連接端子對面側之位置；及 支持體，形成有使上述第丨外部連接端子與上述底板電 性連接用之佈線層， 上述第1外部連接端子於與上述第丨外部連接端子之周 圍的上述樹脂層表面同一之面上自上述樹脂層露出， 上述支持體經由黏接層載裝至上述半導體晶片上，同 時叹置有上述佈線層之區域的面積較上述半導體晶片 :上述半導體晶片之上述支持體側連接有與上述底 板電性連接用夕道 用之導線，上述導線係以通過上述黏接層之 内部之方式而設置。
    111791-980327.doc
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