TW200843055A - Semiconductor device package to improve functions of heat sink and ground shield - Google Patents
Semiconductor device package to improve functions of heat sink and ground shield Download PDFInfo
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- TW200843055A TW200843055A TW096148523A TW96148523A TW200843055A TW 200843055 A TW200843055 A TW 200843055A TW 096148523 A TW096148523 A TW 096148523A TW 96148523 A TW96148523 A TW 96148523A TW 200843055 A TW200843055 A TW 200843055A
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- substrate
- heat dissipation
- package structure
- pad
- semiconductor device
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Description
200843055 九、發明說明: 【發明所屬之技術領域】 本發明係有關半導體封裝結構及其製造方法,特別係 關於薄型半導體封裝結構。 【先前技術】 於半導體裝置領域中,其裝置之密度不斷地增加;因 此,縮小裝置的尺寸需求也漸增。積體電路的發展係高度 地影響晶片封裝技術’因此當電子元件之尺寸視為趨勢 時乂封裝技術勢必也隨之起舞。基於上述理由,現今封裝 技術的趨勢係朝向球型閑陣列(bga)、覆晶技術 c BGA)、日日片級封裝(CSp)、晶圓級封裝(wLp);其中晶 圓級封裝具有極小的尺相及極優良的電性料優點。^ 用晶圓級封裝技術,可減少成本與製程時間,且完成的晶 圓級封裝結構之尺寸與晶粒大小相同;因此 足電子裝置微小化之需求。 了滿
雖然晶圓級封裝有上述之諸多優點,但存在某些 =了晶圓級封裝之接受度。例如,某些㈣技術需要晶 形成於基板上部表面上。再者,—般半導體晶粒之 過重佈程序重佈之,需要—重佈層至複數個區域陣 列形式的金屬墊。其增層亦增加縣之尺寸。因此,封夺 之厚度係增加。此將牴觸減少晶片尺寸的需求。晶片利用 :::層堆積,因此其結構的散熱與接地屏 要解決的問題。 而 【發明内容】 5 200843055 本發明之目的係提供一種封裝結構,具有較 積、較好的散熱以及接地屏蔽效能,以克服前述問題 =明的目的係提供一基板具有電路以及 枓的通孔,以連接配置於基板反面上的接墊。 本發明的目的係提供—薄型化的封裝結構,且本Μ 的^點係提供—具有高導熱能力的黏著材料。 " 再者,本發明的優點係提供一金屬層,以實 散熱能力;特別地,於高功率裝置,本發明提供 = 地賤用於射頻或高頻裝置。於較佳實施例中,本^明勺 括-作為天線功能的金屬層。本發明提供層疊封裝二 之叹计,利用簡單的製程,以整合裝置並縮小堆疊的 本發明係揭露-種用以改善散熱與接地 以封裝結構,包含:―基板,具有-第-接觸墊3 少具有-通孔(through h〇le)形成於其基板内。—金 Ο 形成於其基板下部表面處,其中其通孔自第—接觸塾祕 V::g)。:晶粒,具有一焊塾(b〇ndin”ad)藉由一具有 冋導…之黏著材料附著於其第一接觸墊上。一介電層,形 ί於其晶粒上。-第二接觸墊形成於其基板之上料面 ^。一重佈層(RDL),形成於其晶粒上方並輕合其焊墊至 2接觸藝,用以電性連接。一錫球,形成於基板上部表 面上的第二接觸墊。 墓骑狀毛月亦提供Μ製造用以改善散熱與接地屏蔽之半 置封裝結構之方法,包含:提供-基板,其基板具 6 200843055 有第一接觸墊、一第二接觸墊以及至少一個通孔。散佈 #黏著材料於具有一焊墊之晶粒背面上。附著其晶粒於其 第接觸墊。形成增層(build up layer)以耦合其第二接觸 墊與其知墊。藉由塗佈(coating)或印刷(printing)方式形成 頁。卩保濩層於其晶粒與其基板上。置放一錫球於其第二接 觸墊上,以及回焊(refl〇wing)其錫球,藉以形成錫球於其 第二接觸墊上。 【實施方式】
本發明將配合其較佳實施例與隨附之圖示詳述於下。 應可理解者為I發明中所有之較佳實施例僅為例示之用, 並非用以限制。因此除文中之較佳實施例外,本發明亦可 廣泛地應用在其他實施例中。且本發明並不受限於任何實 施例,應以隨附之申請專利範圍及其同等領域而定。、 102。基板 1〇〇 最好由 FR5/FR4/BT(Bismaleimide ⑽ 或金屬/合金等材質所製成。通孔1〇2係填充導電材料,例 ^ ’金屬’最好為銅。一導電層,例如一金屬層1〇4,附 者於基板100之-表面上;以及一導電们06形成於基板 第圖根據本發明之較佳實施例,為本發明封裝結構 之截面圖。參照第一圖,基板100提供形成於其内的通孔 100之另一表面上。利用通孔102連接金屬層1〇4與1〇6, 以完成較佳的散熱目的,特別係用於高功率裝置。再者, 本發明之設計亦可提供高功率裝置極㈣接地屏蔽效能。 此外,其金屬層可作為天線功能。於本發明另—較佳實施 例,用以增進散熱能力的材料塗佈於金屬層104上。錫金 7 200843055 屬塾108形成於金屬層1〇6旁,兩者間具有一距離。上述 的封裝結構,自金屬層104至錫球端點,其厚度最好約為 300微米(Um)’其中锡球厚度約為0.33毫米(mm)。 具有接觸墊112的晶粒(晶片)110藉由黏著材料114 配置於孟屬層106上。黏著材料114係具有優良的導敎能 2 ’以利於消除由晶粒110所產生的熱能。晶粒110厚度 表好為20-75範圍微米間。 r 一感光介電層116形成於晶粒110與基板100之上表 面上。透過微影或曝光顯影製程,形成複數個開口於介電 =二:複數個開口係個別地對位至接觸墊(或輸出/輸 舌你:及於基板1〇0上部表面上的部份錫金屬墊 108。重佈層118,也可稱為導電路線118,藉由選擇性地 移除部份形成於介電層116上的金屬層,形成於介電層116 上。透過輸出/輸入塾112與錫金屬墊⑽, 晶粒110保持電性連接。 ^與 利用保護層uo覆蓋重佈層118,纟中保護層12〇之 材質包括聚亞醯胺樹脂化合物、矽膠。錫球 :錫::塾108上’用以導電。錫請之高度端:ί 徑,約為0.2-0.35毫米。 直 第二圖為本發明之另—較佳實施例。參照第二圖 H二圖的下部金屬層104分割為兩個主要部份,錫全屬 塾以與金屬層128外,第二圖之封裝結構係相似:屬 圖之貫施例。通孔13G形成於基板1GG内,並填充 料(例如金屬或合金)至通孔13〇内,以保持錫金屬塾= 8 200843055 與124間的電性連接。錫球132各別形成於對立於錫球 的錫金屬墊124上。此設計可提供堆疊結構。 第三圖根據本發明之實施例,為一堆疊封裝設計。參 照第二圖所示的封裝結構,藉由稍微修改前述第一圖與第 二圖的封裝結構,堆疊結構(基板)1〇〇。其封裝結構共用形 成於兩者間的錫球。與第二圖相似的結構(基板)3οος疊^ 結構1〇〇上。錫球302兩端係保持上下間電性連接。ς成 f 於結構300上的錫球304可耦合至其他元件,例如,記憶 體裝置。此結構即為層疊封裝結構。 第四圖為第一圖之封裝結構配置於一印刷電路板上之 截面圖。第一圖的封裝結構配置於印刷電路板402上,且 其印刷電路板402具有數個金屬墊4〇4形成於其上。錫球 4〇6(stage type)配置於金屬墊4〇2上,保持晶片(晶粒 與印刷電路板402間電性連接。印刷電路板4〇2頂部與對 立於曰曰粒408的金屬層41〇表面間之距離約微米。因 〇此,形成一覆晶結構於基板400與印刷電路板4〇2間。基 板.400的導電材料構成一用於晶片4〇8的電磁屏蔽(e= shielding) 〇 第五圖係為第三圖之封裝結構配置於一印刷電路板上 之截面圖。第三圖的封裝結構配置於印刷電路板5〇2上, 且其印刷電路板502具有數個金屬墊5〇4形成於其上。錫 球506(Stage type)配置於結構3〇〇上(如第三圖所示),而結 構300係δ又置於金屬墊5〇4,因此,具有顛倒架構㈣以心 down的層疊封裝結構係配置於印刷 電路板 9 200843055 可塗佈增進散熱能力 502上。於本發明另一較佳實施例, 的材料層於金屬層508上。 提供製造用以改善散熱與接地屏蔽之半導體 4置封1,、。構之方法。本發明提供一基板(面板型),具有 預先形成的電路與接觸墊以及通孔。其通孔填人導電材 料,用以保持晶片與金屬層間的電性連接。其金屬層係於 隨後的步驟’配置於基板的反面上。基板 為 肥舰鑛或金屬/合金。於本發明另—較佳實施例,= 有導電材料以及導電塾的另—通孔,其導電材料例如金 屬,填入其通孔。其導電塾,例如,金屬球塾,形成於基 板的通孔上,用以保持導電金屬墊間的電性連接。 隨後,一黏著材料(高導熱能力)配置於基板上,並使 =取放(pick and place)設備,使晶片附著於基板之具有黏 著材料的一側;其中晶片的厚度約2〇_75微米。 * -但晶粒重佈於基板上(面板基底),藉纟濕及/或乾清 洗’執行清洗程相清潔晶粒表面。另—步驟係塗佈介電 層材料於面板表面。隨後,執行微影製程以打通通孔(或引 洞(via h〇le))(接觸金屬塾)以及焊塾。執行電漿清洗步驟清 洗引洞與焊墊之表面。下一步驟係濺鍍鈦/銅作為晶種金屬 層,而後塗佈光阻於介電層與晶種金屬層以形成重佈層之 圖案。電鍍銅/銀或/銅/鎳/銀材料作為重佈層金屬,而後, 去除光阻並溼蝕刻以形成重佈層金屬路線。 而後,下一步驟係塗佈或印刷頂部介電層並打通接觸 金屬墊。可重複上述步驟以形成多個重佈層與介電層,例 200843055 如晶種(seed)層、光阻、電鑛或去除(stdp)/钱刻等等步驟。 錫球係置放於錫金屬接觸塾,隨後藉由回谭錫球使之 個別㈣㈣金屬接㈣。τ個步驟係切割⑽㈣攸)面板 从Γ成封$、Ια構。應可了解「金屬(metal)」可為任何導電 材質、金屬、合金或導電的化合物。於本發明另—較佳實 也例上述方法更包含堆叠另一封裝結構於其封裝結構 上,以形成層疊封裝結構(pop)。
人左♦ /、基板(封I形式)藉由表面黏著技術(SMT)結 ϋ心後’附著基板的錫球以連接印刷電路板之接塾,藉 ==覆晶結構於基板與印刷電路板之間;其中基板㈣ 電材料可構成用於晶粒的電磁屏蔽。 上^ ’、、、’^此領域技藝者,本發明雖以較佳實例闡明如 由然其並非用以限定本發明之精神。在不脫離 圍:所作之修改與類似的配置,均應包含在下述
口月斥’j軌圍内’此範圍應覆蓋所有類似修改 構,且應做最寬廣的詮釋。 【圖式簡單說明】 之戴【圖圖根據本發明之較佳實施例,為本發明封裝結構 裝結本發明之另—較佳實施例,為本發明之封 施例,為本發明堆疊封穿 第二圖根據本發明之較佳實 結構之載面圖。 之封裝結 第四圖根據本發明之較佳實施例,為第一圖 11 200843055 構配置於一印刷電路板上之截面圖。 第五圖根據本發明之較佳實施例,為第三圖之封裝結 構配置於一印刷電路板上之截面圖。 【主要元件符號說明】
100 基板 130 通孔 102 通孔 132 錫球 104 金屬層 300 基板 106 金屬層 302 錫球 108 錫金屬墊 304 錫球 110 晶粒 402 印刷電路板 112 接觸墊 404 金屬墊 114 黏著材料 406 錫球 116 介電層 408 晶粒 118 重佈層 410 金屬層 120 保護層 502 印刷電路板 122 錫球 504 金屬墊 124 錫金屬墊 506 錫球 128 金屬層 508 金屬層 12
Claims (1)
- 200843055 十、申請專利範圍: 1 · 一種用以改善散熱與接地屏蔽之半導體裝置封裝結 構,包含: 基板’具有一第一接觸墊與一通孔(thr0Ugh hole)形成 於該基板内; i屬層’形成於該基板下部表面處,並藉由該通孔輕 5至°亥弟一接觸墊’用以散熱(heat dissipation)與接地 屏蔽(ground shielding); f ; 一晶粒,具有一焊墊(b〇nding pa句,藉由一具有高導熱 之黏著材料附著於該第一接觸墊上; 一介電層,形成於該介電層與形成於該基板之上部表面 處之一第二接觸墊上; 一重佈層(RDL),形成於該晶粒上方並耦合至該焊墊, 用以電性連接; 錫球,形成於该基板之該上部表面上的該第二接觸 c 墊。 2.如申請項1之用以改善散熱與接地屏蔽之半導體裝置 封裝結構,更包含一保護層,形成於該重佈層上。 士申《月項1之用以改善散熱與接地屏蔽之半導體穿置 封裝結構,其中所述之該金屬層的材質包括散熱材料。 4.如申1項1之用以改善散熱與接地屏蔽之半導體裂置 13 200843055 封裝結構,其中所述之該金屬層可作為天線。 5 ·如申請項1之用以改善散熱與接地屏蔽之半導體裝置 封裝結構,其中所述之第二接觸墊形成於該基板下部表 面上,堆疊另一半導體裝置封裝結構,藉以形成一層疊 封裝(package on package, P〇P)結構。 6·如申請項2之用以改善散熱與接地屏蔽之半導體裝置 〜 封裝結構,其中所述之保護層材質包括聚亞醯胺 (polyimide,PI)樹脂化合物、矽膠。 7·如申請項1之用以改善散熱與接地屏蔽之半導體裝置 封裝結構,其中所述之基板之材質包括 FR5/FR4/BT(Bismaleimide triazine)或金屬 /合金。 8· 一種製造用以改善散熱與接地屏蔽之半導體裝置封裴 結構之方法,包含: 提供一基板,該基板具有一第一接觸墊、一第二接觸墊 以及一通孔; 散佈一黏著材料於具有一焊墊之晶粒背面上; 附著該晶粒於該第一接觸墊; 形成增層(build up layer)以耦合該第二接觸墊與該焊 墊; 藉由塗佈(coating)或印刷(printing)方式形成頂部保護 14 200843055 層於該晶粒與該基板上; 置放一錫球於該第二接觸墊上;以及 回焊(reflowing)該錫球,藉以形成該錫球於該第二接觸 墊上。 9·如申明項8之製造用以改善散熱與接地屏蔽之半導體 裝置封裝結構之方法’更包含設置該晶粒與該基板,而 後附著該基板之該錫球至印刷電路板(PCB)的連接墊, 藉以形成一覆晶(flip_chip)結構,其中該基板的該第一 接觸墊構成一用於該晶粒的電磁屏蔽(EM shielding)。 10.如申請項8之製造用以改善散熱與接地屏蔽之半導體 裝置封裝結構之方法’更包含堆疊另—半導體封裝結構 於該半導體封裝結構,藉以形成一層疊封裝結構。 ".如申請項8之製造用以改善散熱與接地屏蔽之半 裝置封裝結構之方&,其中所述之基板 FR4/FR5/BT基板或金屬/合金基板。 12.如申請項8之製造用以改善散熱與接地屏蔽之 裝置封裝結構之方法,其中所述之保護層材質包括 醯胺樹脂化合物、矽膠。 A 13·如申請項8之製造用 以改善散熱與接地屏蔽之半導體 15 200843055 裝置封裝結構之方法,更包含塗佈一材料層,用以消除 由該晶粒所產生的熱能。16
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DE (1) | DE102008019336A1 (zh) |
SG (1) | SG147390A1 (zh) |
TW (1) | TW200843055A (zh) |
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-
2007
- 2007-04-17 US US11/736,461 patent/US20080258293A1/en not_active Abandoned
- 2007-12-18 TW TW096148523A patent/TW200843055A/zh unknown
-
2008
- 2008-04-16 DE DE102008019336A patent/DE102008019336A1/de not_active Withdrawn
- 2008-04-17 SG SG200802977-9A patent/SG147390A1/en unknown
- 2008-04-17 KR KR1020080035516A patent/KR20080093909A/ko not_active Application Discontinuation
- 2008-04-17 JP JP2008107597A patent/JP2008270810A/ja not_active Withdrawn
- 2008-04-17 CN CNA200810092255XA patent/CN101295683A/zh active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI453873B (zh) * | 2012-03-27 | 2014-09-21 | Chipsip Technology Co Ltd | 堆疊式半導體封裝結構 |
Also Published As
Publication number | Publication date |
---|---|
US20080258293A1 (en) | 2008-10-23 |
KR20080093909A (ko) | 2008-10-22 |
JP2008270810A (ja) | 2008-11-06 |
CN101295683A (zh) | 2008-10-29 |
SG147390A1 (en) | 2008-11-28 |
DE102008019336A1 (de) | 2008-11-06 |
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