TW200903763A - Inter-connecting structure for semiconductor device package and method of the same - Google Patents
Inter-connecting structure for semiconductor device package and method of the same Download PDFInfo
- Publication number
- TW200903763A TW200903763A TW096131727A TW96131727A TW200903763A TW 200903763 A TW200903763 A TW 200903763A TW 096131727 A TW096131727 A TW 096131727A TW 96131727 A TW96131727 A TW 96131727A TW 200903763 A TW200903763 A TW 200903763A
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- substrate
- die
- semiconductor package
- package structure
- interconnect structure
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- H01L23/538—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
- H01L23/5389—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates the chips being integrally enclosed by the interconnect and support structures
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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
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- H—ELECTRICITY
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- H01L2924/1901—Structure
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- H01L2924/19043—Component type being a resistor
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2924/351—Thermal stress
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- 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
- H01L2924/30—Technical effects
- H01L2924/35—Mechanical effects
- H01L2924/351—Thermal stress
- H01L2924/3512—Cracking
Description
200903763 九、發明說明: 【發明所屬之技術領域】 本發明係有關—種晶圓級封裝_ 關於-種晶圓級封裝之内連線結構。 特別疋 【先前技術】 :半導體裝置領域中,褒置之密度持續增
鮮錫凸塊陣驗二上而^在覆晶接合方法中, 用銲錫化人二 。銲錫凸塊之形成係利 之=:4材料配置於銲錫罩幕層,以產生所需銲錫凸塊 曰曰粒封震之功能包含電源分配、訊號分配、散執、 = 由於半導體結構趨向複雜化,而-般傳統 =術,例如導線封裝、軟性封裝、剛性封裳技術,已益法 達成於晶粒上產生具有高密度元件之小型晶粒。 通常’BGA封裝提供高密度連線,其包含訊號路徑 傳統結構具有高阻抗以及不良散熱,因此導致較差散執能 力。隨著龍密度之增加,將内部^件產生之熱導出益、形 覆晶技術為已知電子訊號連接晶粒技術,晶粒主動面 朝下連接表面上複數之接觸墊(習知技術係位於旁側)。 ,訊連接位於覆晶之表面,凸塊包含錫球以及/或銅、金使 得其機械與電性連接於基板之上。位於增層後之錫球具有 凸塊高度約為50-100微米,晶粒反轉配置於基板表面,其 凸塊對準基板之接觸墊,如第一圖所示。若為錫球,其將 200903763 被焊於基板接合塾上,錫接合成本不高,但當基於熱機械 應力所導致毁損或孔洞時,其會增加阻抗。此外,錫球為 錫合金組成,以鉛為基礎之材質將因為環保意識且會產生 有毒物質之釋放而不再受到歡迎。一般,填充材質被用以 降低介於晶片與基板間熱膨脹所產生之熱應力。 再者,由於一般封裝技術必須先將晶圓上之晶粒分割 為個別晶粒,再將晶粒分別封裝,因此上述技術之製程^ ^分費時。因為晶粒封裝技術與積體電路之發展有密切關 聯,因此封裝技術對於電子元件之尺寸要求越來越高。基 於上述之理由,現今之封裝技術已逐漸趨向採用球閘陣列 封裝(繼)、覆晶球閘陣列封裝、晶片尺寸封裝、晶圓級 封裝之技術。應可理解「晶圓級封裝(WLp)」指晶圓上所 有封裝及父互連接結構,如同其他製程步驟,係於切割為 :固別晶粒之前進行。一般而言,在完成所有配裝製程:封 扃製程之後,由具有複數半導體晶粒之晶圓中將個別半導 <體封裝分離。上述晶圓級封裝具有極小之尺寸及良好之電 性。 美國專利號第6,271,469號所揭露之具有增層(bmid =layer)之封裝結構便遇到上述熱膨脹係數不匹配之問 題如第一圖所示。此電子封裝包含晶粒102 ’具有主動 面。封裝穋體112配置於晶粒1〇2肖遭。其中所述之封裝 膠,至夕具有—表面大致上與晶粒主動表面相當平整。第 ;丨電層118配置於封裝膠體112與晶粒1〇2之上。至少 導電層124配置於第-介電層118之上。導電層124連 200903763 接日日粒之主動面。第二 別形成於晶粒102之上 126中以利於耦合導線 以及錫球13 8。 二介電層126以及第三介電層Π6分 上。介層穿孔132形成於第二介電層 象124。接合墊134連接介層穿孔132 上述技術牽涉過多堆疊增層形成於晶粒表面上。其不 ”而要平坦化增層步驟,更須高精度之光微影設備以完成 封裝步驟,但其也易於毀損晶粒表面。主要在於欠缺緩衝 層界於晶粒與錫球間,因此此架構造成低 問題。 非又 因此’本發明提供一種具有内連結構之覆晶結構已克 服上述問題以提供較佳可靠度。 【發明内容】 月之目的係在於提供一種擴散式晶圓級封裝 (fan-out WLP),装 1 古他 a、^ 、一有低成本、面良率以及良好熱膨脹係 數匹配。 本發明之另一目的係在於提供一種封裝之内連線結 構,以增進可靠度與減小裝置之體積。 人.f發明揭露-種半導體封裝結構之内連線結構,包 3 · 一基& ’具有預先製作之導線於其中;-晶粒,且有 接觸塾P動表面…黏合材質,將該晶粒黏合於該基板 二中°亥基板包含通孔貫穿該基板以及該黏合材質; 電材質填充於該通孔以利於連接該接觸墊以及該導線。 “ 〇 3核^黏膠位於該晶粒背面與該黏合材質上,以及導 電凸塊耦合該導線;支撐基板位於該核心黏膠之上。導體 200903763 層位^亥核心黏膠及/或該晶粒背面之上。其中該導體層包 3銅箔、濺鍍或電鍍之銅/鎳/金合金。其中更包含斜頂結 構之封膜單元,位於該晶粒以及該黏合材質之上,斜頂結 構之角度約為水平面起30_6〇度。其中該封膜單元為液: 化合物或封膠化合物。 “ 一種形成半導體封裝之内連線結構之方法,包含: 提供一基板具有電路或導線位於其中; r 形成黏合材質於其上; 以微對位之置放裝置將晶粒配置於該 以覆晶方式配置; 上 形成核心黏膠於該晶粒背面,於填入該晶粒週遭空隙; 形成通孔於該基板以曝露接觸墊; 以物理氣相沉積或化學氣相沉積製作金屬種子層於該 接觸墊上; 形成光阻於該晶粒之上; I 卩電鍍製私製作導電材質於該通孔中,以形成該内連 線結構並與該接觸塾搞合。 更包含熱處理該黏合材質;在曝露出金屬墊之後包含 清潔該金屬塾。其中該金屬導電包含Ti/Cu,Cu/Au,
Cu/Ni/Au或Sn/Ag/Cu。完成内連結構後更包含去除光阻 以及回蝕刻該金屬層。 【實施方式】 本發明將配合其較佳實施例與後附之圖式詳述於下。 應可理解,本發明中之較佳實施例係僅用以說明,而非用 200903763 以限定本發明。此外,除文中之較佳實施例外,本發明亦 可廣泛應用於其他實施例,並且本發明並不限定於任何實 施例,而應視後附之申請專利範圍而定。 本發明揭露一種半導體封裝之結構,包含基板、導線、 以及金屬内連線結構,如第三圖所示。 第三圖係為本發明基板100之截面,基板1〇〇可以為 金屬、玻璃、陶竟、塑膠、PCB或PI。厚度約為4〇_7〇 微米。可為多層結構基板,晶粒1〇5藉由黏著材質黏 於其上,黏著材質110其具有彈性以吸收熱應力。黏著材 質110得只覆蓋晶粒大小之區域。内連線結構丨15回填形 成於基板100内之通孔,得藉由雷射鑽孔製作。内連線結 構115耦合到晶片之預定接觸金屬墊1〇2,其材質可為鋁 墊、銅墊或其他金屬,其係於形成增層後製作。導線 配至於基板之底部或上部表面’且輕合到内連線結構 115。導電凸塊125耦合至導線12〇之末端。 v. 第三圖所示,導線120形成於基板底下(或内部)。例 如,導、線120以金、銅、銅鎳或類似材質組成。可以藉由 電鍍技術、塗佈絲刻方法製作。銅電錢程序持續進^直 到所遇之厚度。導㈣〇延伸出承載晶粒之區域,、核心黏 膠層咖e Paste material)! 3〇 ’例如彈性核心黏膠層係填充 且覆蓋晶粒、基板或黏著材f 11〇。可以藉由樹脂、化合 物、梦膠或環氧樹脂構成。 參閱第四圖,其顯示另一實施例,支揮基板135貼附 於核心黏膠層(core paste matedal) 13〇,以提供封裝體之支 200903763 。、另例為導體層140塗佈或覆蓋於核心黏膠層i 3 〇上 作為散熱器。可以藉由銀㈣合銅箱薄片製作、_技術、 電鍍銅7鎳/金製作導體層140,如第五圖所示。 參閱第六圖,封膜單元145係利用液態化合物或封膠 化合物取代核心黏勝層13〇。曰曰曰粒高度約& 微米, 自^膜單70 145至晶粒表面尺寸大約30-100微米。基板與 姑者材質厚度合計大約40_議微米。因此整 度約為大請-彻微米。值得注意者係為封膜單元14旱5 具有斜頂,傾斜結構之角度θ約為3g_6q《,進而提供較 佳之散熱路徑。 參閱第七圖,基板(圓或矩形)100具有電路形成於其 内,黏合材質(較好為具有彈性以吸收熱應力,基於熱膨服 係數介於基板與H粒不匹配問題)UG ’塗佈於基板,隨 之熱處理該黏合材質11Q。晶粒1G5以微對準裝置置放於 基板⑽之上。下一步驟為自晶粒背面印刷或塗佈核心黏 膠層130。導體層140 一般則是則是利用面板壓合技術 (panel bonding)使其與晶粒背面相互結合。隨之熱處理以 形成“panei wafer”,如第七圖所示。下一步驟為使用雷 射穿孔技術鑿穿通孔(亦可於面板壓合前實施),以及彤成 金屬種子層,隨後㈣光阻形成通孔及連接至基板電路。 隨後去除光阻後,使用電鍍及蝕刻種子層以利於製作内連 結構115。需注意者金屬墊可為鋁墊或其他金屬墊,通孔 區域非為製作凸塊之區域’參第八圖以及第九圖。 隨後,凸塊置於基板之上,且加以紅外線熱流步驟以 200903763 製作傳輸終端結構’如第十圖所示。執行面板級(Panel level) 測試以及切割所述(PI)基板以及核心黏膠層以分離個別單 第十一圖係為根據本發明之内連線結構之一實施例, 其包含晶粒105,具有金屬接觸墊1〇2位於主動表面,黏 合材質110位於晶粒105底面,具有預製電路之基板1〇〇 =以承載晶粒105,以及通孔115形成於基板内,導電材 質經由通孔結構115耦合至晶粒1〇5之金屬接觸墊1〇2以 聯繫基板電路。 本發明提供簡單之製程,無需傳統增層結構於 她心❹(增層意謂電路,其預先製作於基板以預防在 增層過程中損壞晶片)。且本發明無須對準玉具,對準圖案 ,常位於基板表面於製作電路過程中。晶粒主動面貼附於 二板每性黏著層’本發明無須底部填充材質,且本發明具 =路之PI基板採大面積面板。且本發明採用簡易塗佈乾 而非溼式光阻,以形成導電材質於通孔區域。晶 粒可被封裝於其中’只需開孔金屬電區域,因此主動表面 極薄(無須錫球高度,:晶上率,且封裝體之尺寸 於錫球高度因素ϋ 非㈣而不會受限 本發明也藉由採用强料卖 力,以提供高可#。填層做為緩衝層以釋放應 強化機械力。其顯示於基 :)王覆蓋通孔’以 前增層技術截秋不n a: 無熱應力衝擊,其與目 支统、、不同。介於ΡΙ基板與 11 200903763 係數相當,其消除熱問題, 明有效克服熱管理問題。 因此,相較於傳統技術,本發 本毛明以較佳實施例說明如上 發明所主張之專利權利矿圖甘“…並非用以限疋本 • ,〜 圍。其專利保護範圍當視後附之 者,在不脫離太直: 。凡熟悉此領域之技藝 均屬於本二t: 或範圍内’所作之更動或潤飾, 屬於本毛月所揭示精神下所完成之等效改變或設計 應包含在下述之申請專利範圍内。 【圖式簡單說明】 第一圖係為根據先前技術之剖面示意圖。 第二圖係為根據先前技術之剖面示意圖。 第二圖係為根據本發明之剖面示意圖。 第四圖係為根據本發明之剖面示意圖。 第五圖係為根據本發明之剖面示意圖。 第六圖係為根據本發明之示意圖。 第七至十圖係為根據本發明之製程示意圖。 第十一圖係為根據本發明之内連結構剖面示意圖。 【主要元件符號說明】 先前技術 晶粒102、封裝膠體112、第一介電層118、導電層124、 第二介電層126、介層穿孔132、接合墊135、第三介 電層136、錫球138 本發明 基板100、晶粒105、黏著材質11 〇、内連結構11 $、 12 200903763 導線120、導電凸塊125、核心黏膠130、支撐基板135、 導體層140、封膜單元145 f 13
Claims (1)
- 200903763 十、申請專利範圍: 1. 一種半導體封裝結構之内連線結構,包含: 一基板,具有預先製作之導線於其中; 一晶粒,具有接觸墊於主動表面; 一黏合材質,將該晶粒黏合於該基板之上,其 中該基板包含通孔貫穿該基板以及該黏合材 質; 導電材質填充於該通孔以利於連接該接觸墊 以及該導線。 2. 如請求項 1所述之半導體封裝結構之内連線 結構,更包含核心黏膠位於該晶粒與該黏合材 質上,以及包含導電凸塊耦合該導線。 3. 如請求項 2所述之半導體封裝結構之内連線 結構,更包含支撐基板位於該核心黏膠之上。 4. 如請求項 2所述之半導體封裝結構之内連線 結構,更包含導體層位於該核心黏膠之上。 5. 如請求項 4所述之半導體封裝結構之内連線 結構,其中該導體層包含銅箔、濺鍍或電鍍之 銅/鎳/金合金。 14 200903763 6. 如請求項 1所述之半導體封裝結構之内連線 結構,其中更包含斜頂結構之封膜單元,位於 該晶粒、以及該黏合材質之上。 7. 如請求項 6所述之半導體封裝結構之内連線 結構,其中更包含斜頂結構之角度約為3 0 - 6 0 度。 8. 如請求項 6所述之半導體封裝結構之内連線 結構,其中該封膜單元包含液態化合物或封膠 化合物。 9. 一種形成半導體封裝結構之内連線結構之方 法,包含: 提供一基板具有電路於其中; 形成黏合材質於該基板之上; 以微對位之置放裝置將晶粒配置於該黏合材 質之上,以覆晶方式配置; 形成核心黏膠於該晶粒背面,與填入該晶粒週 遭空隙; 形成通孔於該基板以暴露接觸墊; 以物理氣相沉積或化學氣相沉積製作金屬種 子層於該接觸墊上; 形成光阻於該晶粒之上; 15 200903763 以電鍍製程製作金屬導體於該通孔中,以形成 該内連線結構與該接觸墊耦合。 10. 如請求項 9所述之形成半導體封裝結構之内 連線結構之方法,更包含熱處理該黏合材質。 11. 如請求項 9所述之形成半導體封裝結構之内 連線結構之方法,更包含在曝露金屬墊之後清 / 潔該金屬墊。 12. 如請求項 9所述之形成半導體封裝結構之内 連線結構之方法,其中該金屬種子層包含 Ti/Cu, Cu/Au, Cu/Ni/Au 或 Sn/Ag/Cu。 13.如請求項 9所述之形成半導體封裝結構之内 連線結構之方法,更包含去除光阻以及回蝕刻 該金屬層。 16
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JP (1) | JP2009033153A (zh) |
KR (1) | KR20090004775A (zh) |
CN (1) | CN101339928B (zh) |
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US8446243B2 (en) * | 2008-10-31 | 2013-05-21 | Infineon Technologies Austria Ag | Method of constructing inductors and transformers |
TW201131705A (en) * | 2010-03-03 | 2011-09-16 | Advanced Chip Eng Tech Inc | Conductor package structure and method of the same |
US20130214418A1 (en) * | 2012-01-12 | 2013-08-22 | King Dragon International Inc. | Semiconductor Device Package with Slanting Structures |
US20130181227A1 (en) * | 2012-01-12 | 2013-07-18 | King Dragon International Inc. | LED Package with Slanting Structure and Method of the Same |
CN102867759B (zh) * | 2012-08-17 | 2015-04-29 | 日月光半导体制造股份有限公司 | 半导体封装构造及其制造方法 |
TWI492344B (zh) * | 2013-04-09 | 2015-07-11 | 矽品精密工業股份有限公司 | 半導體封裝件及其製法 |
US9331038B2 (en) | 2013-08-29 | 2016-05-03 | Taiwan Semiconductor Manufacturing Company Ltd. | Semiconductor interconnect structure |
US9859265B2 (en) * | 2014-06-06 | 2018-01-02 | Taiwan Semiconductor Manufacturing Company, Ltd. | Package structure and methods of forming the same |
US10043769B2 (en) | 2015-06-03 | 2018-08-07 | Micron Technology, Inc. | Semiconductor devices including dummy chips |
KR102492733B1 (ko) | 2017-09-29 | 2023-01-27 | 삼성디스플레이 주식회사 | 구리 플라즈마 식각 방법 및 디스플레이 패널 제조 방법 |
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US6181569B1 (en) * | 1999-06-07 | 2001-01-30 | Kishore K. Chakravorty | Low cost chip size package and method of fabricating the same |
US6271469B1 (en) | 1999-11-12 | 2001-08-07 | Intel Corporation | Direct build-up layer on an encapsulated die package |
US6569712B2 (en) * | 2001-10-19 | 2003-05-27 | Via Technologies, Inc. | Structure of a ball-grid array package substrate and processes for producing thereof |
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US20040088855A1 (en) * | 2002-11-11 | 2004-05-13 | Salman Akram | Interposers for chip-scale packages, chip-scale packages including the interposers, test apparatus for effecting wafer-level testing of the chip-scale packages, and methods |
US7309622B2 (en) * | 2005-02-14 | 2007-12-18 | Stats Chippac Ltd. | Integrated circuit package system with heat sink |
US20070096285A1 (en) * | 2005-11-02 | 2007-05-03 | Chin-Tien Chiu | Semiconductor die package including construction for preventing delamination and/or cracking of the semiconductor die |
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KR20090004775A (ko) | 2009-01-12 |
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SG148987A1 (en) | 2009-01-29 |
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CN101339928B (zh) | 2011-04-06 |
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