TW200416969A - Taped lead frames and methods of making and using the same in semiconductor packaging - Google Patents

Taped lead frames and methods of making and using the same in semiconductor packaging Download PDF

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Publication number
TW200416969A
TW200416969A TW092126480A TW92126480A TW200416969A TW 200416969 A TW200416969 A TW 200416969A TW 092126480 A TW092126480 A TW 092126480A TW 92126480 A TW92126480 A TW 92126480A TW 200416969 A TW200416969 A TW 200416969A
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Taiwan
Prior art keywords
tape
lead frame
metal
patent application
scope
Prior art date
Application number
TW092126480A
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English (en)
Other versions
TWI323931B (en
Inventor
Romarico Santos San Antonio
Lenny Christina Gultom
Shafidul Islam
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Advanced Interconnect Tech Ltd
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Application filed by Advanced Interconnect Tech Ltd filed Critical Advanced Interconnect Tech Ltd
Publication of TW200416969A publication Critical patent/TW200416969A/zh
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Publication of TWI323931B publication Critical patent/TWI323931B/zh

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    • HELECTRICITY
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    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/50Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
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    • H01L23/495Lead-frames or other flat leads
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  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Lead Frames For Integrated Circuits (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

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200416969 玖、發明說明: 【發明所屬之技術領域】 本發明大致關於引線框架及其在製造包含電子組件封裝 之用途。特別的是,本發明關於一種上膠帶外線框架及— 種在產生半導體電子封裝置中製造及使用該上膠帶引線框 架之方法。 【先前技術】 引線框架典型係由蝕刻或壓模一層金屬膜成為特定形狀 及尺寸而仵。精細結構的引線框架通常具有非常細緻的修 飾以及模板狀的金屬構造。這樣一般引線框架使用於工^ 以產生各種晶片封裝,包括線結式及倒裝法封裝。 一般引線框架缺少結構硬度。該引線框架的指狀部份相 田蓴難以在處理期間維持定位。這會在組裝處理期間導 致操作上的瑕疵、損壞及失真。 在製造晶片尺寸封裝的自動過程中,製造商典型在方塊 矩阵中形成複數個互連的引線框架,附接及電氣連接晶片 至該方塊中的各個引線框架,封裝該晶片/引線框架,深蝕 刻各個引線框架接點間的金屬,及接著㈣各個晶片/引線 框架’以形成個別封裝。在—般過程中,然而,該方塊中 的引線框架彼此互連’直到分割步驟。於分割過程期間, 刀片的厚度切割不僅穿透該封裝殼的塑膠,而且穿透方塊 中把引線框架結合在—起的金屬接線。該刀片的力量及振 :力::對稱的應力’配置在晶片及引線框架間的附接部份 與電氣接線上。這會導致金屬塑膠介面上分層的結構性缺 88326 200416969 陷。本發明將克服這些問題。 【發明内容】 明^了提供―種用於電子封裝之上膠帶引線框架。本香 g,¥^^ ^ /听次載姐連接的蝕刻金屬特徵,該习 二:=載體形成覆蓋區圖案的引線框架輪廊。該膠帶 藉…、黏著或其適=::輪廓, m架及電氣連接至積體電路晶片。在本發明引 録屬特徵在個職件或封裝所❹的最後 二:ΓΓ它的金屬特徵電氣隔離。本發明也提供 4或載姐上1造則、線框架金屬特徵之方法“ =:帶或薄膜或載體連接至一金屬膜或金屬層二 2別封裝的引線框架特徵,或將-層金屬膜製成圖案, 田下所需的隔離金屬特徵,以形成-金屬引線框架。或者, ^均厚度的厚金屬膜屏蔽印刷至_可配置膠帶或薄膜, 瑪膜’或者考慮利用其它相同載體物件,達成相同 本發明也關於-種使用如本發明引線框架以形成電子。 =方法。該方法包含提供如本發明的引線框架及將積旁 :路:片附接及電氣連接至該引線框架的金屬特徵。封$ :接者施加於膠帶上的引線框架,並且產生硬化。移除, ^且將具有固定嵌入之引線框架全屬% ^ ·、 r 丁、· 1 n木至屬的封裝實施例分割, 、石亚觸任何所設計的隔離金屬特徵,以形成電子封裝。 在—較佳實施例中,複數個如本發明之上膠帶引線框奪 88326 200416969 开/成於大I製造的電子封裝的陣列。在此實施例中,今、 數個個別金屬引線框架連接至一片膠帶上。各個引線= 精由膠帶上的接道區域與緊鄰的引線框架隔離。形成各: 線框架的覆蓋區圖案中所配置的個別金屬特徵係彼此ο 隔離,且沒有金屬特徵延伸進入街道區域。 -虱 複數個電子封裝可利用上膠帶的引線框架陣列形成。在 此万法中,複數個積體電路晶片附接及電氣連接於 的各個引線框架。並饴 hi n771 ^ 木其後,封裝膠囊將施加於膠帶上的引 框架及街這區域。在_實施例中,該封裝步驟係一控制方 ί,其係將封裝材料施加於引線框架,使其沿著金屬特徵 机動’且達到膠帶表面而不會產生任何模型閃光。 一旦封裝殼硬化及乾燥,該膠帶將被移除。因為 架彼此電氣隔離’”磁條"測試可在此階段優先分割步驟會 订…車列接著透過街道區域中封裝膠囊的分劃,形成個 Η电子封裝。分割程序能藉由鋸切雷射切割、喑 或其組合方式來完成。 〃 ^ 本發明進一包括許多選擇特徵。例如,可結線及可弹接 谭劑可預先電鑛於各個金屬形體的第一及第二表面的任何 —層表面或mm線及可焊接焊劑可為Ni_pd-Au 排列。 册該金屬特徵可具有約“密爾或少於1密爾的厚度。該膠 w系由m置及低成本塑膠材料製成,例如, p〇™IDE、MYLAR、KAP丁⑽或Fr 4,或者能被移除或 或亮塑„或類似物之相同載體。該膠帶 88326 200416969 ::替=體可藉由剝除、溶解或背部製圖方式移去。此 間額外的表面的下方,以提供處理期 其在移除膠帶前先被移除。 -件時’於製程期間, 該金屬特徵可建構及配置於各種的 納所製造的特別斜举 ^丄 口末甲以奋 方式,農中= 於線結處理 兮引線P 個支撐積體電路晶片的晶模塾,以及將 木與晶片電氣連接的引線接點。或者, 裝法或齒格陣列處理法建構,以提供㈣接點, 卜/㈣電路晶片,且使得引線框架與晶片電氣連接。 I爲她万式】 、圖1aelQ表737 —個線結晶片之上膠帶引線框架的陣列形成 以及m該上膠帶引線框架形成上膠帶框架封裝之方 在圖la所tf的上視圖中,—條狀金屬膜附接於膠帶(⑺)。 該膠帶與金屬膜的附接,能以許多方式完成,其中包括一 般層疊技術或使用黏著劑。或者,一層金屬膜能屏蔽印至 -可:置的膠帶或薄膜上,其中包括玻璃薄膜載體,以達 成車乂薄的封裝。该金屬膜接著製成一個具有如圖1 &所示各 至屬特欲的引線框架(2G)陣列。如圖❶及k所示,各個線框 架包含複數個金屬特徵,其中包括晶片墊(23)及一組圍繞該 晶片墊的引線接點(25)。包含晶片墊(23)及引線接點(25)的 =域共同% <為晶片位置。一加強件(3〇)選擇性地可配置在 膠π下表面,以便處理期間提供額外的機械穩定度。 口亥胗耶(1 〇)包含一塑膠材料,諸如p〇LYIMIDE、mylar、 88326 KAPTON或,且可隨著厚度改變。該金屬膜,較佳銅或 銅合金,可具有約1至4密爾之間的厚度,也可具有少於丨密 爾的厚度。金屬膜諸如藉由遮蔽法儘可能的製成薄狀,口、 要金屬可連結。該金屬膜較佳也能在安裝至膠帶前,以包 含Ni-Pd-Au排列的可結線及可焊接焊劑預先電鍍。 一種製圖方法能將圖案壓印於金屬上。其它方法可包括 化學或電化學蝕洗及放電切削。微影蝕刻較佳。實行金屬 的触刻直到達膠帶表面。再者,該㈣移除形體之^及 引線框架之間所有的金屬,目此留下的金屬形體將由下方 膠帶維持在定位。引線框架之間缺乏金屬的空間稱之為"街 道’’(15),如圖ia、卟及丨』所示。 另外如圖la所示,當作載體的膠帶前進到下一個製程步 驟,其中晶片安裝至引線框架的晶片塾。具有一層單邊金 屬膜的彎曲膠帶能輕易地容納—般捲盤至捲盤裝配線。然 後,在下一個裝配線站,如圖ld所示,晶片(4〇)安裝至晶片 墊。圖le表示一晶片位置,其中晶片(4〇)安裝至晶片墊(23)。 背邵連結可利用環氧樹脂(47)及透過糊狀或薄膜形式的焊接 劑或其它共鎔金屬的使用來完成。在環氧樹脂硬化後,晶 片墊接點(45)及引線接點(25)藉由導線(5〇),如圖ig所示, 使用結線技術來連接。因為如本發明的引線框架具有連續 的膠帶襯背,接點(25)可堅固地座落及維持在平坦的表面: 藉以產生卓越的連結,改良終端產品的可靠度。 如圖lh所示,在晶片及相對電子接點彼此連接之後,金 屬膜及膠帶前側上的时組件將由封祕模材料⑽),諸如 88326 200416969 樹脂所覆蓋。封裝殼(60)形成在整個金屬膜及所有曝露表面 上,其中包括引線框架及其相關導線(5、晶片(4〇)、接點 (125)及覆蓋整個膠帶的街道區域(15)。利用該揭露之方法, 膠帶的使用能避免封裝下側上覆蓋區所共同面臨的壓膜閃 光問題。 圖li表示該膠帶(1〇)及選擇性的加強件(3〇)接著被移除。 該膠帶可藉由簡單的剝除方式或藉由溶解於化學溶液的方 式移除。該合成構造係形成於一個方塊的引線框架封裝陣 列或矩陣。該方塊接著在街道部份(15)分割成複數個如圖" 所示的電子封裝(80)。分割能以許多方式完成,其中包括圖 ij所示的鋸切、噴水切割、雷射切割,或其組合,或者是 特別適合切割塑膠的其它技術。如圖lk所示,各個分割封 裝底部表面經過清洗及預備進一步的處理。該預先電鍍的 接點能連接至封裝的下一位準。如所須,該已經清洗過的 接點旎進一步平滑處理或焊接磨光以改良接線。 引線框架的方塊能為任何大小,其可相當於製造線上所 須的產量。此一方塊的上視圖如圖u所示。方塊的一部份 =如圖lm所示,而晶片位置係如圖ln所示。形成本發明上 膠帶之引線框架封裝的製程步驟係如圖1〇所概述。較佳的 步驟包括形成一引線框架晶片位置(9〇),接著是晶片或晶 $附件的形成。該附接過程的係透過焊接劑或其它共鎔 =屬,或者接著在步驟(92)由硬化及乾燥所使用的環氧樹脂 來心成。接下來,晶片端在步驟(93)結線於引線接點,接著 利用-壓模材料(94)封裝。接下來,膠帶在步驟(95)移除, 88326 -12- 200416969 此後,該壓模方塊分割(96)成為個別的封裝。 圖2a-2r所不的另—實施例中,其揭露一種使用倒裝法 =成上膠帶引線框架之方法,及—種使用該上膠帶料框 /成倒裝电子封裝〈方法。下面的製程步驟與先前實施 例類似,-條狀金屬膜連接膠帶〇〇〇),如圖2a所示。金屬 膜接著製成一排引線框架,其中金屬形體形成晶片位置 (120) ’較佳由圖2b可看到。在此實施例中特徵包含—組引 線接點(125)。該接點具有尾端(123)的短引線,此尾端(⑵) 向内朝向引線框架的中心延伸。短線端提供倒裝晶片結合 凸塊的區#’如後續的步驟所示。圖2b中晶片位置的橫截 面圖表示於圖1 c。 膠帶載體(_較佳為P0LYIMIDE、MYLAR、kart〇n或 F…或者,使用一種能移除或配置像玻璃薄膜或亮塑膠 膜,或類似物的相同載體。金屬膜,較佳為鋼,具有約工至 4密爾之間的厚度,且能具有少於丨密爾的厚度。只要金屬 可連結,該金屬膜儘可能製成薄片。該金屬膜較佳也〇在 安裝至該膠帶之前預先電鍍。 完成。該蝕刻法移除所有 除开> 成該晶片位置之引線 的 框 該製圖過程係使用微影蝕刻法 金屬,直到達到下方的膠帶, 架中的特徵以外。該引線框架因此由圖2a、仏及所示 的街道(11 5)隔離。該引線框架的特徵藉由下方膠帶維持定 位,但不連接於該引線框架 特徵之間。街道中缺乏金屬 何的金屬。如先前的實施例 之間或是引線框架晶片位置内 將確保在分割期間不會鋸切任 ,我們能在膠帶後方使用一個 88326 -13- 200416969 類似的加強件(130),如圖2c所示。 在下一步驟,如圖2d所示,具有焊料凸塊(145)的晶片(_ 被翻轉過來,以便凸塊〇45)配置在特徵(123)上,如圖〜及 Μ所丁然後,貫行一個焊料回流操作且該焊料凸塊有些 萎陷’因此形成縮短的焊接線〇5〇),如圖2g所示。膠帶與 加強件能提供形成良好倒裝連結法所需的穩定度,如圖& 所示。 在倒裝晶片附接及電氣連接至引線框架後,該膠帶上的 引線框架封裝在-個壓模材料中,如圖2h所示。封裝如呀 形成在所有的晶片四周以及各個引線框架晶片 特徵上。 ’ 一^該封裝殼硬化及乾燥,膠帶及選項的加強件能被移 除’帶的移除能以任何方式完成’如先前所提及。該人 成構造是-種形成方塊的引線框架封裝的陣列或矩陣^ 圖所示。因為方塊中引線框架彼此電氣隔離,方塊或磁 條測試可在分割前在此階段測試。該方塊接著在街道部份 (115)分割成為複數個電子封裝(18〇),如圖2请示。各個: 割封裝的底部表面,如圖2k所示’將清理及預備進一步S 處理。該預先電鍵的接點能接著連接至封裝的下叫上谁 如所須,已經清理的接點能進一步磨平或閃光焊接2良 連接方式。 圖2卜臟211表示不同型式的電子封裝,其能利用 膠帶引線框架封裝的揭露方法獲得。圖21係勘的放大圖, 其中能看到接點引線下方稱為"凸緣,,(127)的切口。在膠槪 88326 -14- 200416969 移除後及在封裝前’該凸緣能藉由半蝕刻來自該底部表面 的接點引線(1 25)延伸部份形成。此方法在封裝期間避免該 引線/接點延伸部份曝露至凸塊連結墊的位置。另外,該凸 彖才住及鎖在壓模材料上,藉此使得壓模材料難以與搭接 表面分離。如另一鎖定機構,該形體的垂直壁面能以凹入 的特徵製成圖案’其將接著製在該壓模材料上,且防止該 金屬封裝膠囊的介面產生分層現象。在進—步的實施例中, 如圖2m所π,虛擬凸塊(155)及觀塾(145)可提供具有熱加強 H ‘另外,接點(125)能如圖2n縮短,以提供一個接· 近晶片尺寸的封裝。 圖表示有關倒裝晶片上膠帶引線框架方塊的上视圖。 万塊的-部份係如圖2p所表示,而晶片位置如圖2作表示。 2成此封裝的製程步驟概述係圖2々斤表示” =引線框架晶片位置(190),隨後是晶片配置及焊二 。2)接下來’貫行⑽遂模材料的封裝。然後, 加:件的話’包含加強件的膠帶備份在步驟⑽)移 此後,該壓模方塊分劉(198)成為個別的倒裝晶片封裝、。 在圖3’所示的次一實施例中 陣列封塋> 士 ; π ® ^f齒袼 子封裝使用膠帶齒格陣列形成齒㈣ 裝陣列包裝的製程步帮與倒裝晶片封 裝所揭路的製程步驟非常相似余 小覆蓋區及更多产触姑w A €她歹’ W導形成具有較 、夂更夕積體特性的實際晶片尺寸封裝。 也就疋說’條狀的金屬膜盎床 ' 如3a所亍。… 咖例的勝帶(200)連接, ㈣屬膜接著製圖形成具有形成晶片位置(22。) 88326 -15- 200416969 特徵的引線框架陣列,最佳如圖3b所示。在此實施例中的 特性包含一組圓形引線接點(225)。圖3b中晶片位置的橫截 面圖係如圖3c所示。圖3c也表示選項的加強件(23〇)。 該製圖方式係使用微影蝕刻法完成。除形成晶片位置(22〇) 的引線框架中的特徵以外,該蝕刻法移除所有的金屬直到 達到下面的膠帶。該引線框架因此由街道(215)分離,而該 引線框架的特徵將以下方膠帶維持在定位。 在下一步驟,積體電路晶片附加及電氣連接該引線框架。 如圖3d所表示的晶片(24〇)具有一齒格陣列的焊料凸塊 (245)。藏凸塊可在間距上形成,其對應於各個晶片位置 中接點(125)間的間距。該晶片被翻轉以便凸塊(245)配置在 特欲(225) ’如圖3e所示。圖3e表示兩個這樣具有焊料凸塊 晶片的晶片位置,可由圖3f看到。烊料回流操作的形成可 導致焊料凸塊產生萎陷以及形成縮短的焊料連接(250),如 圖3f所示。 在倒裝晶片附接及電氣連接該引線框架後,膠帶上的% 線框架封裝於如圖3f所示相同引線框架的壓模材料中。封 裝豉(260)均沿著晶片及在晶片下形成。膠帶的出現能在封 裝下側的覆概區,避免共同由於模型閃光所遭遇的問題。 一旦封裝殼硬化及乾燥,膠帶及選項加強件可被移除。 膠帶的移除能以許多方式完成,如簡易地剝除法或化學溶 解法。该合成構造是一種能形成方塊的引線框架封裝的陣 列或矩陣’如圖3§所示。該方塊接著在街道部份(2 1 5)分割 成為複數個電子封裝(280),如圖3h所示,而不會切割到任 88326 16 何金屬。 =示::固封裝的放大圖裝覆蓋區非常接近晶片
Ur 封裝側上壓模材料⑽)的厚度以外。晶片上 1枓凸塊直接與連接至封裝下個位準的特徵(⑵)對齊。 "大邵份能在圖3j所示的封裝下視圖上看見。如所須,已 趣清除的接點能進-步平滑處理或閃㈣接以改良連接方 式。具有|,凸緣”的齒格陣列封裝的其它範例係如圖3心表 不。圖3k表示一個具有256齒格的封裝,而圖31表示一個且 有m齒格的類似封裝。圖3m中的封裝具有36個齒格。 ”類似於圖11及2〇,圖311表示一個具有齒格陣列凸塊之上 膠π引線框^方塊的上視圖。該方塊的一部份係如圖所 不,而晶片位置係如圖3ρ所示。形成齒格陣列封裝的處理 步驟概述於圖3q。較佳的步驟包含形成上膠帶引線框架晶 片位置(300>,接著是齒格陣列倒裝晶片配置及焊料回流 (3〇1)。接下來,實行(3〇3)具有壓模材料的封裝。然後,如 果有加強件的話,包括加強件的膠帶備份在步驟(3〇5)移除, 在此之後,該壓模方塊分割(3〇7)形成個別的^^”封裝。 本發明致使一般引線框架厚度明顯縮小,藉以產生能具 有改良散熱特性的較薄封裝及具有改良電氣性能的較短幾 何。這提供超薄封裝大量製造的機會。 雖然本發明已將參考特別實施例加以表示及說明,但習 於此技者將瞭解各種形式及細節的變化不會偏離本發明的 精神及範圍。 【圖式簡單說明】 88326 200416969 置之上膠帶引線框架的 圖1 a係本發明具有複數個晶片位 上視圖。 圖㈣本發明表示圖案特徵之上膠帶引線框架晶片位置 的上視圖,其中該圖案特徵包括一晶片塾及圍繞該晶片塾 的接點。 位置的橫截面圖 圖lc係沿著圖113線(:-〇:所取之晶片 的下視圖。 圖1 b晶片墊上的上視 圖1 d係表示結線塾之積體電路晶片 圖1e係本發明將圖Id晶片配置至
圖1 f係沿著圖1 e線所;又η矣一』丄 ui κ、求取且表不如本發明圖“晶片背部 連結至該晶片墊的橫截面圖。 1 圖1§係本發明表示將該晶片塾以導線連結至該上膠帶引 線框架電氣接點的橫截面圖。 圖叫系本發明表示封裝數個包括晶片及結線之上膠帶引 線框架’以形成方塊的橫截面圖。 圖u係本發明表示將該膠帶及加強件由化引線框架方塊 移除的橫截面圖。 圖U係本發明表示圖Η方塊的分割,其中該刀鑛不能接觸 到任何街道中上膠帶引線框架金屬部份的橫截面圖。 圖1 k揭示本發明的一個經過分割之上膠帶引線框架 裝。 圖11係本發明上膠帶引線框架晶片的陣列或方塊。 圖lm係本發明圖U表示複數個晶片位置較佳位置的 份。 88326 -18- 200416969 圖1 η係本發明圖1 m表示晶片位置詳細上視圖的另一立 份。 ^ 的流程 圖1 〇係本發明表示一上膠帶引線框架封裝形成 視圖 圖2a係本發明具有複數個晶片位置以容納倒裝晶片的 上 圖2b保本發明表示製作包括接點特徵的圖案,以容納一 倒裝晶片足上膠帶引線框架晶片位置的上視圖。 圖2c係本發明沿著圖孔晶片位置之線c_c所取,且 示該膠帶及選項加強件的橫截面圖。 ° 、 圖2d係本發明具有谭料凸塊之積體電路晶片的下視圖。 圖係本發明將圖2d晶片配置在該上膠帶引線㈣ 接點的倒裝晶片上視圖。 私礼 敌:2f二1發明沿著圖24F_F所取及表示該凸塊焊料流程 啟始(検截面圖。 塊邵份萎陷的橫截面圖 圖2h縣發明表示封裝數個包括晶片及接點之上膠帶引 線框架的橫截面圖。 圖2ί係本發明表示由圖2h引‘線框架方塊移除膠帶及加強 件的橫截面圖。 圖2:係:發明表示圖2i方塊的分割,其中該刀鋸不能接觸 任何街迢中上膠帶引線框架金屬部份㈣截面圖。 圖A揭不本發明具有倒裝晶片及經過分割之上膠帶引線 圖2 §係本發明表示在該倒裝晶片焊料流程後圖2 f焊料凸 88326 19_ 200416969 框架封裝。 圖21係本發明表示在接點下方所形成凸緣之倒裝晶片封 裝的橫截面圖。 圖2m係本發明熱加強倒裝晶片封裝的橫截面圖。 圖2n係本發明接近晶片尺寸之倒裝晶片封裝的橫截面 圖。 圖2〇係本發明上膠帶引線框架晶片位置的陣列或方塊的 上視圖。 圖2P係本發明圖2〇的一部份,表示複數個倒裝晶片位置 之較佳視圖。 圖2q係本發明圖2m的另一邵份,表示倒裝晶片晶片位置 之詳細上視圖。 圖2r係本發明表示一倒裝晶片封裝形成的流程圖。 圖3 a係本發明具有複數個晶片位置以容納齒格陣列倒裝 晶片足上膠帶引線框架的上視圖。 圖孙係本發明表示製圖接點特徵之上膠㈣丨線框架晶片 的上視圖。 圖3c係本發明沿著圖3b^_c所取及同時表示該膠帶及選 項加強件的橫截面圖。 圖3d係本發明具有齒格陣列焊料凸塊之積體 下視圖。 ^ ; 將=3d雨彳1月表不在孩齒格陣列凸塊焊料流程開始時, 揭固倒裝晶片配置在兩個晶片位置的橫截面圖。 σ…口本發明圖3e焊料凸塊在該焊料流程及封裝包 88326 -20 - 200416969 括該倒裝晶片的w線進入壓模材料方塊之部份萎陷圖。 圖3g係本發明表示由圖奵引線框架方塊移除膠帶及加強 片之橫截面圖。 圖3h係本發明表示圖3g方塊的分割及該刀鋸不會接觸任 何街道中引線框架金屬部份的橫截面圖。 圖31揭示本發明具有一齒格陣列倒裝晶片(丁 l⑽之經過 分割之上膠帶引線框架封裝的橫截面圖。 圖3j係本發明圖3i齒格陣列封裝的下視圖。 圖3k揭示如本發明具有256個齒格之丁l(}a封裝之橫截面 及下視圖。 圖31揭示本發明具有144個齒格之TLGA封裝之橫截面及 下視圖。 圖301揭示本發明具有36個鸯格之TLGA封裝之橫截面及下 視圖。 圖3η係本發明上膠帶引線框架晶片位置方塊及陣列以容 納齒格陣列倒裝晶片的上视圖。 圖3〇係圖3η的一部份,揭示本發明複數個晶片位置的較 佳視圖。 圖3ρ係圖3〇的另一部份,揭示本發明齒格陣列倒裝晶片 的詳細上視圖。 曰曰 圖3q係本發明表示一齒格陣列封裝形成的流程圖。 【圖式代表符號說明】 10、100、200 膠帶 15、115 街道 88326 -21 - 200416969 20 引線框架 23 晶片塾 25 、 125 、 225 引線接點 30 、 130 、 230 加強件 40 > 140 ^ 240 晶片 45 晶片塾接點 47 環氧樹脂 50 導線 60 、 160 > 260 封裝殼 80 、 180 ^ 280 複數個電子封裝 90 ' 9卜 92 > 93 步驟 94 ' 95 、 96 、 190 192 、 194 、 196 198 、 300 、 301 303 、 305 、 307 100 膠帶載體 123 尾端 127 凸緣 145 、 245 焊料凸塊 150 、 250 焊接線 155 虛擬凸塊 215 街道部份 220 晶片位置 88326 -22-

Claims (1)

  1. 200416969 拾、申請專利範園·· 1. 一種上膠帶引線框架,包含·· 一膠帶;及 線框架,其係、&複數個與該膠帶連接及配置在提 供支持及電氣連接至積體電路晶片之覆蓋區圖案中之個別 金屬特徵所料,各個金屬特徵係與圖案中之其它金屬特 徵電氣隔離。 2. 如申請專利範圍第!項之上膠帶引線框架,進一步包本_ 個預先電鍍在各個金屬特徵之第-及第二表面的任一:二 者之可結線及可焊接焊劑。 3. 如申請專利範圍第2項之上膠帶引線框架,纟中該可 及可焊接焊劑係Ni_pd_Au排列方式。 … =申請專利範圍第i項之上膠帶引線框架,其中該膠帶及 至屬特徵以膠帶上的黏著劑附接。 其中該膠帶及 其中該金屬特 體物件的可配 進一步包含一 其中該金屬特 其中該金屬特 5·如申請專利範圍第丨項之上膠帶引線框架, 金屬特徵以層疊方式附接。 6·如_請專利範圍第丨項之上膠帶引線框架, 徵屏蔽印刷至一層包括破璃膜或其它相同載 置膠帶、薄膜。 7. 如申請專利範圍第丨項之上膠帶引線框架 可配置在膠帶下表面上的加強件。 8. 如申請專利範圍第1項之上膠帶引線框架 徵具有約1 _4密爾的厚度。 9·如申請專利範圍第1項之上膠帶引線框架 88326 200416969 徵具有少於約1密爾的厚度。 10.如申請專利範圍第1項之上膠帶引線框架,其中該膠帶包 含一塑膠材料。 11·如申請專利範圍第10項之上膠帶引線框架,其中該膠帶包 含 POLYIMIDE、MYLAR、KAPTON或 Fr-4。 12.如申請專利範圍第1項之上膠帶引線框架,其中該覆蓋區 圖案中的金屬特徵包括一個支撐積體電路晶片的晶模墊及 將該引線框架電氣連接至該晶片的引線接點。 13·如申請專利範圍第12項之上膠帶引線框架,其中該引線框 架提供一線結晶片的支撐及連接。 14.如申請專利範圍第1項之上膠帶引線框架,其中該覆蓋區 圖案中的金屬特徵包括一個支撐積體電路晶片及將該引線 框架電氣連接至該晶片的引線接點。 15·如申請專利範圍第14項之上膠帶引線框架,其中該引線框 架k供倒裝晶片或齒格陣列晶片的支撐及連接。 16·如申請專利範圍第η之上膠帶引線框架,其中該膠帶可 藉由剥除、溶解或背部製圖方式由該金屬特徵移除。 17·—種大量生產電子封裝之上膠帶引線框架陣列,包含: 一膠帶;及 複數個個別附接該膠帶的金屬引線框架,各個引線框 架藉由該膠帶上的街道區域與緊鄰引線框架隔離,各料 框架包含複數個個別配置在覆蓋區圖案中的金屬特徵 個金屬特徵與圖案中的其它金屬特徵電氣隔離,且入 屬特徵延伸進入街道區域。 '又至 88326 200416969 18.如申請專利範圍第17項之上膠帶引線框架陣列,進一步包 含一個預先電鍍在各個金屬特徵之第一及第二表面的任一 或二者之可結線及可焊接焊劑。 19·如申請專利範圍第17項之上膠帶引線框架陣列,其中該可 結線及可焊接焊劑係NiHAu排列方式。 20·如申請專利範圍第17項之上膠帶引線框架陣列,其中該膠 帶及金屬特徵以膠帶上的黏著劑附接。 21·如申請專利範圍第17項之上膠帶引線框架陣列,其中該膠 V及金屬特徵以層疊方式附接。 22. 如申請專利範圍第17項之上膠帶引線框架陣列,進一步包 έ 可配置在膠帶下表面上的加強件。 23. 如申請專利範圍第17項之上膠帶引線框架陣列,其中該金 屬特徵具有約1 -4密爾的厚度。 24. 如申請專利範圍第17項之上膠帶引線框架陣列,其中該金 屬特徵具有少於約1密爾的厚度。 25. 如申請專利範圍第17項之上膠帶引線框架陣列,其中該膠 帶包含一塑膠材料。 26·如申請專利範圍第25項之上膠帶引線框架陣列,其中該膠 卩包含 POLYIMIDE、MYLAR、ΚΑΡΤΟΝ或 Fr-4。 27·:申請專利範圍第17項之上膠帶引線框架陣列,其中該覆 盖區圖案中的金屬特徵包括一個支撐積體電路晶片的晶糢 墊及將該引線框架電氣連接至該晶片的料接點。 28·如申請專利範圍第27項之上膠帶引線框架陣列,其中該弓丨 、泉框架提供一線結晶片的支撐及連接。 88326 29·如申請專利範圍第17項之上膠帶引線框架陣列,其中該覆 盖區圖帛中的金屬特徵包括支撐積體電路晶片及將該引線 框架電氣連接至該晶片的引線接點。 3〇·如申請專利範圍第29項之上膠帶引線框架陣列,其中該引 線框架提供一倒裝晶片或齒格陣列晶片的支撐及連接。 31·如申請專利範圍第17項之上膠帶引線框架陣列,其中該膠 帶可藉由剝除、溶解或背部製圖方式由該金屬特徵移除。 32· 一種形成引線框架之方法,包含下列步驟: 提供一金屬膜; 附接一膠帶至該金屬膜;及 製作泫金屬膜圖案,留下一金屬引線框架在該膠帶上, 孩引線框架包含複數個配置在覆蓋區圖案中的金屬特徵, 各個金屬特徵與該圖案中的其它金屬圖案電氣隔離。 33·如申請專利範圍第32項之方法,進一步包含之步驟係以一 可結線及可焊接焊劑預先電鍍該金屬膜的上或下表面或二 表面。 34·如申請專利範圍第33項之方法,其中該焊劑係Ni-Pd-Au排 列方式。 35·如申請專利範圍第32項之方法,其中該膠帶及金屬膜以膠 帶上的黏著劑附接。 36·如申請專利範圍第32項之方法,其中該膠帶及金屬膜以層 疊方式附接。 37·如申凊專利範圍第3 2項之方法,其中該金屬特徵將屏蔽印 至一層包括破璃膜之可配置膠帶、薄膜,或其它相同載體 88326 200416969 物件。 申請專利範圍第32項之方法,進一步包含之步驟係將— 加強件附接至該膠帶;及在移除該膠帶前移除該加強件。 39·如申請專利範圍第32項之方法,其中該金屬特徵具有约“ 4密爾的厚度。 40·如申請專利範圍第32項之方法,其中該金屬特徵具有少於 約1密爾的厚度。 41·如申請專利範圍第32項之方法,其中該膠帶包含一塑膠材 料。 42.如申請專利範圍第4丨項之方法,其中該膠帶包含 POLYIMIDE、MYLAR、KAPTON或 Fr-4。 43·如申請專利範圍第32項之方法,其中該覆蓋區圖案中的金 屬特徵包括一個支撐積體電路晶片的晶模墊及將該引線框 架電氣气接至該晶片的引線接點。 44.如中請專利範圍第43項之方法,其中該引線框架提供一線 結晶片的支撐及連接。 45·如申請專利範圍第32項之方法,其中該覆蓋區圖案中的金 屬特徵包括支撐積體電路晶片及將該引線框架電氣連接至 該晶片的引線接點。 46·如申請專利範圍第例之方法,其中該引線框架提供一倒 裝晶片或齒格陣列晶片的支撐及連接。 47·種形成電子封裝之方法,包含下列步驟: 提供一金屬膜; 附接一膠帶至該金屬膜; 88326 200416969 製作該金屬膜圖案,留下一金 ^ ^ 至屬?丨線框架在該膠帶上, 以引、,泉框架包含複數個配置在覆¥ 々y 復|E圖案中的金屬特矜 各個金屬特徵與該圖案中的其它 " 匕至屬圖案電氣隔離; 、 積隨電路晶片附接及電齑|ϋ S ,、A 屬特徵; %孔連接至孩引線框架之金 封裝該膠帶上的引線框架; 移除該膠帶;及 以形成一 分别該封裝膠囊但不帛分割任何金屬特徵 電子封裝。 進一步包含之步驟係以一 茲金屬膜的上或下表面或 48.如申請專利範圍第47項之方法, 可結線及可焊接焊劑,預先電鍍 一表面。 49·如申請專利範圍第48項之方法,其中該焊劑係N“p“ 列方式。 5〇·如申請專利範圍第47項之方法,其中該膠帶及金屬膜以膠 帶上的黏著劑附接。 ^ 51·如申請專利範圍第47項之方法,其中該膠帶及金屬膜以層 疊方式附接。 52.如申請專利範圍第47項之方法,其中該金屬特徵將屏蔽印 至一層包括玻璃膜之可配置膠帶、薄膜,或其它相同載體 物件。 53.如申請專利範圍第47項之方法,進一步包含之步驟係將一 加強件附接至該膠帶;及在移除該膠帶前移除該加強件。 54·如申請專利範圍第47項之方法,其中該金屬特徵具有約i 88326 200416969 4密爾的厚度。 55.如申請專利範圍第47項之方法,其中該金屬特徵具有少於 約1密爾的厚度。 56·如申請專利範圍第47項之方法,其中該膠帶包含一塑膠材 料。 57·如申請專利範圍第53項之方法,其中該膠帶包含 POLYIMIDE、MYLAR、KAPTON或 Fr-4。 58·如申請專利範圍第47項之方法,其中該覆蓋區圖案中的金 屬特徵包括一個支撐積體電路晶片的晶模墊及將該引線框 架電氣連接至該晶片的引線接點。 59. 如申請專利範圍第58項之方法,其中該積體電路晶片藉由 續氧樹脂、焊料或其它共鎔金屬附接至該晶模墊。 60. 如申請專利範圍第55項之方法,其中該引線框架提供一線 結晶片的支撐及連接。 61. 如申請專利範圍第47項之方法,其中各個覆蓋區圖案中的 金屬特徵包括支撐積體電路晶片及將該引線框架電氣連接 至該晶片的引線接點。 62. 如申請專利範圍第57項之方法,其中該引線框架提供一 裝晶片或齒格陣列晶片的支撐及連接。 63. 如申請專利範圍第47項之方法,其中該膠帶可藉由剝除 溶解或背部製圖方式由該金屬特徵移除。 队如申請專利範圍第47項之方法,其中該封裝步驟包括施 -層封裝膠囊材料在該引、線框架上,以—控制方式沿著 金屬特徵流動’且達到該膠帶表面,而不會產生任=模j 88326 200416969 閃光效應。 如申μ專利範圍第47項之方法,其中該分割步驟包含鋸 切、雷射切割、噴水切割或其組合。 6·如申叫專利|a圍第47項之方④’進—步包含在分割該封裝 膠囊前’實行該封裝的磁條測試。 67·種形成複數個電子封裝之方法,包含下列步驟: 提供一金屬膜; 附接一膠帶至該金屬膜; 装作该金屬膜圖案,留下一金屬引線框架在該膠帶上, 各個引線框架藉由該膠帶上的街道區域與緊鄰引線框架隔 離,各個引線框架包含複數個配置在覆蓋區圖案中的金屬 特鉍且彼此電氣隔離,以及沒有金屬特徵延伸進入該膠帶 上的街道區内; 將一積體電路晶片附接及電氣連接至各個引線框架之 金屬特徵; 封裝該膠帶上的引線框架及街道區域; 移除該膠帶;及 分割該街道區域中的封裝膠囊,以形成個別的電子封 裝。 ❹申請專利範圍第67項之方法,其中該金屬膜具有第一及 第二表面,且任一或二者該表面預先電鍍一可結線及可焊 接焊劑。 枞如申請專利範圍第64項之方法,其中該洋劑係Ni_pd_Au排 列方式》 88326 416969 如申叫專利範圍第67項之方法,其中該膠帶及金屬膜係以 孩膠帶上之黏著劑附接。 71·如申請專利範圍第67項之方法,其中該膠帶及金屬膜以層 疊方式附接。 曰 72.如申請專利範圍第67項之方法,其中該金屬特徵將屏蔽印 至一層包括玻璃膜之可配置膠帶、㈣,《其它相同載體 ,進一步包含之步驟係當該 強件附接至該膠帶;及在移 ,其中該金屬特徵具有約卜 73·如申請專利範圍第67項之方法 膠帶附接該金屬膜時,將一加 除該膠帶前移除該加強件。 74·如申請專利範圍第67項之方法 4密爾的厚度。 75.如申印專利範圍第67項之方法,其中該金屬特徵具有少於 約1密爾的厚度。 76·如申請專利範圍第67項之方法,其中該膠帶係由 POLYIMIDE、MYLAR、KAPTON 或 Fr-4所組成。 77·如申請專利範圍第67項之方法,其中在各個覆蓋區圖案中 的金屬特徵,包括一個支撐積體電路晶片的晶模墊及將該 引線框架電氣連接至該晶片的引線接點。 78·如申請專利範圍第75項之方法,其中該引線框架提供一線 結晶片的支撐及連接。 79.如申請專利範圍第67項之方法,其中各個覆蓋區圖案中的 金屬特欲’包括支撐積體電路晶片及將該引線框架電氣連 接至該晶片的引線接點。 88326 200416969 浚申w專利範圍第7 9項之方法,其中該積體電路晶片以環 氧树H曰、焊接劑或其它共鎔金屬附接至該晶模墊。 81·如申叫專利範圍第乃項之方法,其中該引線框架提供一倒 裝晶片或齒格陣列晶片的支撐及連接。 82·如申晴專利範圍第㈣之方法,其中該複數個引線框架係 以陣列方式形成在該膠帶上。 83·:申請專利範圍第67項之方法,其中該膠帶可藉由剥除、 ♦解或3 i圖方式由該金屬特徵移除,且該封裝膠囊可 曝露該引線框架的覆蓋區圖案。 狄如申請專利範圍第67項之方法,其中該封裝步驟包括施加 一層封裝膠囊材料在該引線框架上,以—控制方式沿著該 金屬特徵流動,且達到該膠帶表面,而不會產生任何_ 閃光效應。 > 如甲請寻利範 切、雷射切割、噴水切割或其組合 86·如申請專利範圍第π項之太 万去,進一步包含在分判哕 裝膠囊前,實行該封裝的磁條測試。 ^ μ 88326 -10.
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US20040058478A1 (en) 2004-03-25
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