TWI716109B - 封裝體及其形成方法 - Google Patents
封裝體及其形成方法 Download PDFInfo
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- TWI716109B TWI716109B TW108133986A TW108133986A TWI716109B TW I716109 B TWI716109 B TW I716109B TW 108133986 A TW108133986 A TW 108133986A TW 108133986 A TW108133986 A TW 108133986A TW I716109 B TWI716109 B TW I716109B
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- integrated circuit
- circuit device
- underfill
- interposer
- substrate
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Abstract
在一實施例中,封裝體包含:具有一第一側邊的一中介層;一第一積體電路裝置附接至中介層的第一側邊;一第二積體電路裝置附接至中介層的第一側邊;一底部填充物設置於第一積體電路裝置和第二積體電路裝置之下;以及一包封體,設置以環繞第一積體電路裝置和第二積體電路裝置,包封體的一第一部分延伸穿過底部填充物,包封體的第一部分實體地設置於第一積體電路裝置和第二積體電路裝置之間,包封體的第一部分與底部填充物的複數個邊緣以及第一積體電路裝置和第二積體電路裝置的複數個邊緣共平面。
Description
本揭露內容是有關於一種封裝體及其形成方法,特別是有關於一種具有中介層的封裝體及其形成方法。
自開發出積體電路(integrated circuit,IC)以來,半導體行業已因各種電子元件(即,電晶體、二極體、電阻器、電容器等)積體密度的持續提升而經歷持續且快速的成長。很大程度上,積體密度的這些提升源自於最小特徵尺寸(minimum feature size)的重複地減小,這使得更多的組件能夠整合至給定區域中。
由於積體元件所佔據的面積主要位於半導體晶圓的表面上,這些整合度的提升本質上是在二維(two-dimensional,2D)的層面上。積體電路的密度增大及對應的面積減小已普遍抑制了將積體電路晶片直接結合至基底的能力。目前使用中介層(interposer)來將球接觸區域自晶片的區域重新分佈至更大的中介層區域。此外,藉由使用中介層,能夠達成包含多個晶片的三維(three-dimensional,3D)封裝。亦已開發出包含三維態樣的其他封裝。
本發明的一些實施例提供一種封裝體的形成方法。此方法包含:將複數個積體電路裝置附接至一中介層(interposer)的一第一表面,此些積體
電路裝置在側向上藉由複數個分別的間隙分隔開來;在此些間隙中形成一填充材料,以在此些間隙中形成複數個阻擋件(dam);在此些積體電路裝置與中介層之間配置一底部填充材料(underfill material);移除此些阻擋件以在底部填充材料中形成複數個底部填充缺口;以及藉由一包封體(encapsulant)封裝此些積體電路裝置,包封體設置於此些底部填充缺口中。
本發明的一些實施例提供一種封裝體的形成方法。此方法包含:將一第一積體電路裝置和一第二積體電路裝置附接至一中介層的一第一表面,第一積體電路裝置和第二積體電路裝置藉由一間隙分隔開來;在間隙中形成一阻擋件;在中介層上形成一底部填充物(underfill),底部填充物具有位於第一積體電路裝置之下的一第一部分,底部填充物具有位於第二積體電路裝置之下的一第二部分,阻擋件實體地(physically)將第一部分和第二部分分隔開來;移除阻擋件以形成一開口暴露中介層;以及藉由一包封體封裝第一積體電路裝置和第二積體電路裝置,包封體設置於該開口中。
本發明的一些實施例提供一種封裝體。封裝體包含一中介層、一第一積體電路裝置、一第二積體電路裝置、一底部填充物以及一包封體。中介層具有一第一側邊。第一積體電路裝置附接至中介層的第一側邊,第二積體電路裝置附接至中介層的第一側邊。底部填充物設置於第一積體電路裝置和第二積體電路裝置之下。包封體設置以環繞第一積體電路裝置和第二積體電路裝置。包封體的一第一部分延伸穿過底部填充物,包封體的第一部分實體地設置於第一積體電路裝置和第二積體電路裝置之間,包封體的第一部分與底部填充物的複數個邊緣以及第一積體電路裝置和第二積體電路裝置的複數個邊緣共平面。
50:積體電路裝置
50A、50B、50C:裝置
52、72:基底
54、76:內連線結構
56:矽穿孔
70:中介層
74:穿孔
100:第一裝置封裝體
100A、100B、100C:區域
101:間隙
102、104、126:導電凸塊
106、132:導電連接件
108:阻擋件
108A:下部
108B:上部
110:底部填充材料
110A、110B、110C:填角
111:底部填充缺口
112:包封體
112A:第一區域
112B:第二區域
114:載體基底
116:脫膜層
120:重佈線結構
122:介電層
124:凸塊下金屬
128:第一光阻
130:第二光阻
200:第二裝置封裝體
202:封裝基底
204:焊墊
206:底部填充物
H1、H2、H3、H4:高度
W1、W2:寬度
θ1:銳角
θ2、θ3、θ4:角度
θ5:內角
藉由以下的詳細描述配合所附圖式,可以更加理解本發明實施例的內容。需強調的是,根據產業上的標準慣例,許多特徵部件(feature)並未按照比例繪製。事實上,為了能清楚地討論,各種部件的尺寸可能被任意地增加或減少。
第1圖是根據一些實施例之積體電路裝置的剖面示意圖。
第2圖是根據一些實施例之中介層的剖面示意圖。
第3A至3C圖、第4圖、第5A圖至第5D圖、第6A圖至第6C圖、第7至8圖、第9A圖至第9C圖、第10圖至第15圖是根據一些實施例,形成堆疊半導體裝置的製程中的多個中間階段的剖面示意圖。
第16A圖至第16D圖是根據一些實施例,形成堆疊半導體裝置的製程中的多個中間階段的剖面示意圖。
第17圖是根據一些實施例之堆疊半導體裝置的剖面示意圖。
以下內容提供了很多不同的實施例或範例,用於實現本發明實施例的不同特徵部件。組件和配置的具體範例描述如下,以簡化本發明實施例。當然,這些僅僅是範例,並非用以限定本發明實施例。舉例來說,敘述中若提及第一部件形成於第二部件之上,可能包含形成第一和第二部件直接接觸的實施例,也可能包含額外的部件形成於第一和第二部件之間,使得第一和第二部件可不直接接觸的實施例。另外,在本發明實施例所述的各個範例中可能重複元件符號及/或字母。此重複是為了簡潔及清晰之目的,本身並不表示在各個實施例及/或配置之間的關係。
此外,為易於說明,本文中可能使用例如「位於...之下(beneath)」、「下面(below)」、「下部的(lower)」、「上方(above)」、「上部的(upper)」
等空間相對性用語來闡述圖中所示一個元件或特徵部件與另一(其他)元件或特徵部件的關係。所述空間相對性用語是為了在除了圖中所繪示的定向外亦包含元件在使用或操作中的不同定向。設備可具有其他定向(旋轉90度或處於其他定向),且本文中所使用的空間相對性描述語可同樣相應地進行解釋。
根據一些實施例,積體電路裝置附接至晶圓,且底部填充材料形成在積體電路裝置之下。缺口(breaks)形成在積體電路裝置之間,這可降低在後續製程中晶圓的翹曲(warpage)。在形成底部填充材料之前,經由在積體電路裝置之間的晶圓上形成阻擋件(dam)而形成缺口。然後提供底部填充材料,並移除阻擋件。藉由使用阻擋件來形成底部填充缺口,使得缺口可以形成在不對稱的封裝體中或具有任意裝置佈局(arbitrary device layout)的封裝體中。
第1圖是根據一些實施例之積體電路裝置50的剖面示意圖。積體電路裝置50可以是邏輯晶粒(例如,中央處理單元(central processing unit,CPU)、圖像處理單元(graphics processing unit,GPU)、系統晶片(system-on-a-chip;SoC)、微控制器等)、記憶體晶粒(例如,動態隨機存取記憶體(dynamic random access memory,DRAM)晶粒、靜態隨機存取記憶體(static random access memory,SRAM)晶粒等)、功率管理晶粒(例如,功率管理積體電路(power management integrated circuit,PMIC)晶粒)、射頻(radio frequency,RF)晶粒、感測器晶粒、微機電系統(micro-electro-mechanical-system,MEMS)晶粒、訊號處理晶粒(例如,數位訊號處理(digital signal processing,DSP)晶粒)、前端晶粒(例如,類比前端(analog front-end,AFE)晶粒)、類似者,或其組合。積體電路裝置50可形成於晶圓中,此晶圓可包含在後續步驟中單體化(singulated)的不同元件區以形成多個積體電路裝置50。積體電路裝置50包含基底52以及內連線結構54。
基底52可包含塊狀半導體基底、絕緣體上半導體(semiconductor-on-insulator,SOI)基底、多層半導體基底或類似者。基底52的半導體材料可以是:矽;鍺;化合物半導體,包含矽鍺、碳化矽、砷化鎵、磷化鎵、磷化銦、砷化銦及/或銻化銦;合金半導體,包含SiGe、GaAsP、AlInAs、AlGaAs、GaInAs、GaInP及/或GaInAsP;或其組合。亦可使用其他基底,諸如多層基底或梯度基底。基底52可以是摻雜的或未摻雜的。裝置(諸如電晶體、電容器、電阻器、二極體,及類似者)可形成於基底52的主動表面(例如,面朝上的表面)中及/或主動表面上。
具有一或多個介電層以及對應金屬化圖案的內連線結構54形成於基底52的主動表面上。此一或多個介電層可為金屬間介電(inter-metallization dielectric,IMD)層。金屬間介電層可由例如低介電常數的介電材料藉由本領域中已知的任何適合的方法形成,所述低介電常數的介電材料例如未摻雜矽酸鹽玻璃(undoped silicate glass,USG)、磷矽酸鹽玻璃(phosphosilicate glass,PSG)、硼磷矽玻璃(borophosphosilicate glass,BPSG)、氟矽酸鹽玻璃(fluorosilicate glass,FSG)、SiOxCy、旋塗玻璃、旋塗聚合物、碳化矽材料、其化合物、其複合物、其組合或類似者,所述方法例如旋塗、化學氣相沉積(chemical vapor deposition,CVD)、電漿輔助型化學氣相沉積(plasma-enhanced CVD,PECVD)、高密度電漿化學氣相沉積(high-density plasma chemical vapor deposition,HDP-CVD)或類似者。介電層中的金屬化圖案可藉由使用導孔及/或走線而於裝置之間路由(route)電訊號,且亦可含有各種電子裝置,例如電容器、電阻器、電感器或類似者。各種裝置以及金屬化圖案可內連以執行一或多個功能。功能可包含記憶體結構、處理結構、感測器、放大器、功率分佈、輸入/輸出電路或類似者。此外,例如導電柱或接觸墊的晶粒連接件形成於內連線結構54中及/或內連線結構54上,以提供外部電連接至電路以及裝置。所屬領域中具通常知識
者將瞭解以上的範例是提供來為了達成說明的目的。可根據適合的給定應用目的而使用其他電路。
在一些實施例中,積體電路裝置50可以是包含多個基底52的堆疊裝置,舉例而言,積體電路裝置50可以是一種記憶裝置,例如混合記憶體立方體(hybrid memory cube,HMC)模組、高頻寬記憶體(high bandwidth memory,HBM)模組或包含多個記憶晶粒的類似者。在此類實施例中,積體電路元件50包含藉由導孔內連的多個基底52。各個基底52可具有(或可不具有)分別的內連線結構54。
第2圖是根據一些實施例之中介層70的剖面示意圖。雖然只繪示一個中介層70,但應了解中介層70可形成在具有多個裝置區域的晶圓中,且各個裝置區域用於形成一個中介層70。中介層70包含基底72、穿孔74以及內連線結構76。
基底72可為塊狀半導體基底、絕緣體上半導體基底、多層半導體基底或類似者。基底72的半導體材料可為:矽;鍺;化合物半導體,包含矽鍺、碳化矽、砷化鎵、磷化鎵、磷化銦、砷化銦及/或銻化銦;合金半導體,包含SiGe、GaAsP、AlInAs、AlGaAs、GaInAs、GaInP及/或GaInAsP;或其組合。亦可使用其他基底,例如多層基底或梯度基底。基底72可為摻雜的或未摻雜的。例如電晶體之主動裝置可以(或可以不)形成於基底72的前表面(例如,面朝上的表面)中及/或基底72的前表面上。例如電容器、電阻器、二極體及類似者的被動元件可以(或可以不)形成於基底72的前表面中及/或基底72的前表面上。
形成穿孔74以自基底72的前表面延伸至基底72中。當基底72為矽基底時,穿孔74有時亦稱為基底穿孔或矽穿孔(through-substrate vias/through-silicon vias,TSV)。穿孔74可藉由於基底72中形成凹部而形成,藉由例如蝕刻、碾磨(milling)、雷射技術、其組合及/或類似者以形成凹部。薄
介電材料可諸如藉由使用氧化技術而形成於凹部中。薄障壁層可諸如藉由化學氣相沉積(CVD)、原子層沉積(atomic layer deposition,ALD)、物理氣相沉積(physical vapor deposition,PVD)、熱氧化、其組合及/或類似者而均勻地沉積於基底72的前側上方以及開口中。障壁層可由氮化物或氮氧化物形成,氮化物或氮氧化物例如是氮化鈦、氮氧化鈦、氮化鉭、氮氧化鉭、氮化鎢、其組合,及/或類似者。導電材料可沉積於薄障壁層上方以及開口中。導電材料可藉由電化學鍍覆製程、化學氣相沉積、原子層沉積、物理氣相沉積、其組合及/或類似者而形成。導電材料的範例為銅、鎢、鋁、銀、金、其組合,及/或類似者。過量的導電材料以及障壁層藉由例如化學機械研磨(chemical-mechanical polish,CMP)而自基底72的前側移除。因此,穿孔74可包含導電材料,其中薄障壁層位於導電材料與基底72之間。
內連線結構76形成於基底72的前表面上方,且用以將基底52的裝置(若存在)及/或穿孔74電性連接在一起,及/或電性連接至外部裝置。內連線結構76可包含一或多個介電層以及介電層中的對應金屬化圖案。金屬化圖案可包含導孔及/或走線以將任何裝置及/或穿孔74內連在一起,及/或內連至外部裝置。介電層可由氧化矽、氮化矽、碳化矽、氮氧化矽、低介電常數介電材料形成,低介電常數介電材料例如磷矽酸鹽玻璃、硼磷矽玻璃、氟矽酸鹽玻璃、SiOxCy、旋塗玻璃、旋塗聚合物、矽碳材料、其化合物、其複合物、其組合或類似者。介電層可藉由所屬領域中已知的任何適合的方法而沉積,所述方法例如旋塗、化學氣相沉積、電漿輔助型化學氣相沉積、高密度電漿化學氣相沉積或類似者。金屬化圖案可形成於介電層中,例如藉由使用微影技術以在介電層上將光阻材料沉積以及圖案化,以暴露介電層的一些部分而成為金屬化圖案。例如非等向性乾式蝕刻製程的蝕刻製程可用以於介電層中產生凹部及/或開口,這些凹部及/或開口對應地暴露介電層的一些部分。凹部及/或開口可襯墊有擴散
障壁層且使用導電材料填充。擴散障壁層可由藉由原子層沉積或類似者而沉積的氮化鉭、鉭、氮化鈦、鈦、鎢化鈷或類似者的一或多個層而形成,且導電材料可由銅、鋁、鎢、銀、其組合或類似者形成,且可藉由化學氣相沉積、物理氣相沉積或類似者而沉積。介電層上的任何過量的擴散障壁層及/或導電材料可例如藉由使用化學機械研磨而移除。
第3A圖至第15圖是根據一些實施例,形成堆疊半導體裝置的製程中的多個中間階段的剖面示意圖。在第3A圖至第14圖中,藉由將多個積體電路裝置50接合至中介層70的前側以形成第一裝置封裝體100。在一些實施例中,第一裝置封裝體100是晶圓上晶片(chip-on-wafer;CoW)封裝體,然而應瞭解,實施例可應用於其他三維積體電路(three-dimensional integrated circuit;3DIC)封裝體。在第15圖中,藉由將第一裝置封裝體100安裝至封裝基底而形成第二裝置封裝體200。在一實施例中,第二裝置封裝體200是基底上晶圓上晶片(chip-on-wafer-on-substrate;CoWoS)封裝體,然而應瞭解,實施例可應用於其他三維積體電路封裝體。
在第3A圖中,多個積體電路裝置50附接至中介層70。積體電路裝置50包含具有不同功能的多個裝置50A和50B。內連線結構54和76物理性及電性連接至積體電路裝置50A和50B以及中介層70。積體電路裝置50A和50B可各自具有單個功能(例如,邏輯元件、記憶體晶粒等),或可具有多個功能(例如,系統晶片)。在一實施例中,積體電路裝置50A為例如是中央處理單元的邏輯裝置,以及積體電路裝置50B為例如是高頻寬記憶體(HBM)模組的記憶體元件。積體電路裝置50可使用例如取放工具(pick-and-place tool)而附接至內連線結構76。
積體電路裝置50A的背表面設置為與內連線結構76相距高度H1,積體電路裝置50B的背表面設置為與內連線結構76相距高度H2。高度H1和高度
H2可以是相同的或彼此不同。在一些實施例中,高度H1是在約50微米(μm)至約800微米的範圍內,高度H2是在約50微米至約800微米的範圍內。積體電路裝置50A和50B在側向上藉由間隙101分隔開來。間隙101具有寬度W1。在一些實施例中,寬度W1是在約40微米至約150微米的範圍內。積體電路裝置50A和50B之間的多個間隙101可以具有相同或不同的距離。
在中介層70是形成於晶圓中的一些實施例中,積體電路裝置50A和50B可以附接至晶圓的不同裝置區域,而晶圓會在後續的步驟中單體化而形成多個第一裝置封裝體100。第3B圖和第3C圖是第3A圖的結構的各種上視圖,其中呈現區域100A和100B。區域100A和100B各自包含多個裝置50A和50B。在一些實施例中,例如是第3B圖的實施例,積體電路裝置50B是相鄰於積體電路裝置50A而對稱地設置。在一些實施例中,例如是第3C圖的實施例,積體電路裝置50B是相鄰於積體電路裝置50A而非對稱地設置。非對稱的布局可以使得積體電路裝置50B能夠與積體電路裝置50A的輸入/輸出連接區域更靠近。
在所繪示的實施例中,積體電路裝置50A和50B藉由連接件而附接至內連線結構76,此連接件包含導電凸塊102以及導電凸塊104,以及導電連接件106。導電凸塊102以及導電凸塊104由例如銅、鋁、金、鎳、鈀、類似者或其組合的導電材料而形成,以及可藉由濺鍍、印刷、電鍍、無電式鍍覆、化學氣相沉積或類似者而形成。導電凸塊102以及導電凸塊104可無焊料(solder-free)且具有實質上垂直的側壁,且可稱為μ凸塊。導電凸塊102電性地以及實體地連接至內連線結構54,且導電凸塊104電性地以及實體地連接至內連線結構76。導電連接件106接合導電凸塊102以及導電凸塊104。導電連接件106可由例如焊料的導電材料形成,且可藉由在導電凸塊102或導電凸塊104上初始地形成一層焊料而形成,經由例如蒸鍍、電鍍、印刷、焊料轉移、植球或類似者的方法而初
始地形成所述焊料。一旦焊料層形成,則可執行回焊製程以便將導電連接件106塑形為所需的凸塊形狀。
在其他實施例中,積體電路裝置50A和50B藉由面對面接合(face-to-face bonds)而附接至內連線結構76。舉例而言,混合接合、熔合接合、直接接合、介電接合、金屬接合或類似者可用以附接內連線結構54以及內連線結構76,而不使用焊料。另外,可使用接合技術的混合,例如,一些積體電路裝置50A和50B可藉由導電連接件106而接合至內連線結構76,且其他積體電路裝置50A和50B可藉由面對面接合而接合至內連線結構76。
在第4圖中,阻擋件(dam)108形成於積體電路裝置50A和50B之間的間隙101中。阻擋件108可包含聚合物填充材料,例如丙烯酸、環氧物或類似者。聚合物填充材料可以是紫外光固化樹脂,例如自由基固化丙烯酸化合物(丙烯酸酯)。在一些實施例中,聚合物填充材料是光敏單體,例如光阻。在一些實施例中,阻擋件108的材料例如是藉由例如噴墨印刷之印刷製程施加在中介層70上。阻擋件108的材料可以在高溫下施加並具有低黏度。在一些實施例中,聚合物填充材料在約25℃至約60℃的溫度施加,且具有約7mPa-s至約12mPa-s的黏度。在施加阻擋件108的材料之後,進行固化製程。固化製程可包含將聚合物填充材料暴露在紫外光源下。在一些實施例中。當聚合物填充材料是光敏單體,例如是光阻,則暴露此光阻可導致光敏單體之間發生交聯。固化聚合物填充材料可以將聚合物填充材料硬化為固態材料,而形成阻擋件108。阻擋件108形成而具有高度H3。在一些實施例中,高度H3是在約20微米至約800微米的範圍內。阻擋件108的高度H3可以低於高度H1和高度H2(參照第3A圖),或者高於高度H1和高度H2。
在第5A圖中,底部填充材料110配置至積體電路裝置50A和50B以及內連線結構76之間。底部填充材料110包圍導電凸塊102、導電凸塊104、導電
連接件106以及阻擋件108。阻擋件108至少部分地填充積體電路裝置50A和50B之間的間隙101,且防止底部填充材料110完全填充間隙101。阻擋件108因此防止底部填充材料110成為單一的連續層。底部填充材料110在中介層70的邊緣區域具有多個填角(fillet)110A。填角110A沿積體電路裝置50B的側邊向上延伸,這些側邊沿中介層70的邊緣區域設置。底部填充材料110可以是任何可接受的材料,諸如聚合物、環氧物、模塑底膠(molding underfill)或類似者。底部填充材料110可藉由毛細管流製程(capillary flow process)而形成。底部填充材料110形成而具有高度H4。在一些實施例中,高度H4是在約10微米至約50微米的範圍內。底部填充材料110的高度H4低於阻擋件108的高度H3。
第5B圖和第5C圖是第5A圖的結構的各種上視圖,其中呈現區域100A和100B。第5B圖和第5C圖分別繪示第3B圖和第3C圖的阻擋件108形成後及底部填充材料110配置之後的實施例。第5D圖是根據一些其他實施例之第5A圖的結構之上視圖。在第5D圖之實施例中,第一填角110A只形成在晶圓的最外側邊緣,阻擋件108也形成在相鄰的區域100A和100B之間。
第6A圖、第6B圖和第6C圖是第一裝置封裝體100的區域100C(參照第5A圖)在配置底部填充材料110之後的細部示意圖。第6A圖、第6B圖和第6C圖呈現當阻擋件108形成為具有各種尺寸時的第一裝置封裝體100的尺寸。在一些實施例中,阻擋件108形成為具有寬度W2,而寬度W2可以是在約40毫米的約150毫米範圍內。在一些實施例中,例如如第6A圖所示,阻擋件108的寬度W2與間隙101的寬度W1相同,而底部填充材料110實質上限定在積體電路裝置50A和50B之下(例如,底部填充材料110與積體電路裝置50A和50B的邊緣的其中一者共平面)。在一些實施例中,例如如第6B圖所示,阻擋件108的寬度W2小於間隙101的寬度W1,而底部填充材料110填充部分的間隙101。在一些實施例中,例如如第6C圖所示,阻擋件108部分地延伸在積體電路裝置50A和50B之下,其
中阻擋件108的下部108A具有的寬度W2大於間隙108的寬度W1,而阻擋件108的上部108B與間隙101具有相同的寬度W1。
在第7圖中,移除阻擋件108。移除阻擋件108而在底部填充材料110中形成底部填充缺口111,且底部填充缺口111位於相鄰的積體電路裝置50A和50B之間。底部填充缺口111可以是底部填充材料110中的缺口並暴露中介層70。可以藉由合適的蝕刻製程並使用對於阻擋件108聚合物填充材料具有選擇性的蝕刻劑來完成阻擋件108的移除。舉例而言,當阻擋件108是由光阻形成。可以使用合適的去光阻液來移除阻擋件108的材料。在一些實施例中,蝕刻製程包含使用氫氧化鈉(NaOH)基蝕刻劑的濕式蝕刻。當使用氫氧化鈉(NaOH)基蝕刻劑,濕式蝕刻可以在20℃至80℃的溫度進行,且持續約30秒至約600秒的時間。在一些實施例中,蝕刻製程包含使用氫氧化鉀(KOH)基蝕刻劑的濕式蝕刻。當使用氫氧化鉀(KOH)基蝕刻劑,濕式蝕刻可以在20℃至80℃的溫度進行,且持續約30秒至約600秒的時間。
底部填充開口111位於積體電路裝置50A和50B之間,使得位於各個積體電路裝置50A和50B之下的底部填充材料110的多個部分實體上分隔開來。底部填充材料110和中介層70的材料之間可具有大幅的熱不匹配(thermal mismatch),中介層70的材料例如是矽。底部填充材料110的多個實體分隔開來的部分可以有助於降低熱不匹配,因此可以降低後續高溫製程中的第一裝置封裝體100的翹曲,特別是在中介層70是形成在晶圓中的實施例中。在一範例中,翹曲可以下降高達40%。
在第8圖中,包封體112形成於各種組件上。包封體112可為模塑化合物、環氧物或類似者,且可藉由壓縮模塑、轉移模塑或類似者而應用。包封體112可形成於內連線結構76上方,以使得積體電路裝置50A和50B以及底部填充材料110被掩埋或覆蓋。包封體112可進一步形成於底部填充缺口111中。包封
體112隨後固化。在一些實施例中,包封體112被薄化以使得包封體112的頂表面與積體電路裝置50A和50B的頂表面齊平。如前所述,底部填充材料110的實體分開的部分可降低第一裝置封裝體100的翹曲。降低翹曲可以增加製程容許度(processing window),以形成並薄化包封體112。
藉由形成並移除阻擋件108來製造底部填充材料110的缺口相較於其他形成底部填充缺口111的方法具有優點。舉例而言,藉由形成並移除阻擋件108(而非切割底部填充材料110)來形成底部填充缺口111可以避免積體電路裝置50A和50B之中的破裂、包封體112中的破裂、或底部填充材料110與包封體112之間的脫層。類似地,此種形成方法可以使得即使積體電路裝置50A和50B是例如以第3C圖所示的實施例之非對稱方式配置時,仍能形成底部填充缺口111。實際上,藉由形成並移除阻擋件108的方式可以將底部填充缺口111形成在具有任何可接受的裝置布局的封裝體中。
第9A圖、第9B圖和第9C圖是第一裝置封裝體100的區域100C(參照第5A圖)的細部示意圖。第9A圖、第9B圖和第9C圖分別繪示第6A圖、第6B圖和第6C圖的包封體112固化及薄化之後的實施例。包封體112填充未被底部填充材料110所佔據的間隙101的部分。值得注意的是,包封體112填充之前被阻擋件108所佔據的間隙101的部分。在第9A圖中,在間隙101中的包封體112的部分的寬度W2等於間隙101的寬度W1。在第9B圖中,在間隙101中的包封體112的部分的寬度W2小於間隙101的寬度W1。在第9C圖中,在間隙101中的包封體112的部分具有一下部寬度W2大於間隙101的寬度W1、且具有一上部寬度W2等於間隙101的寬度W1。
在第10圖中,將中間結構翻轉以準備處理基底72的背側。中間結構可置放於載體基底114上或其他適合的支撐結構上以用於後續處理。舉例而言,載體基底114可附接至包封體112。中間結構可藉由脫膜層(release layer)
116而附接至載體基底112。脫膜層116可由聚合物類材料形成,聚合物類材料可連同載體基底114一起自上覆結構移除。在一些實施例中,載體基底114為例如塊狀半導體或玻璃基底的基底,且可具有任何厚度,諸如約300毫米的厚度。在一些實施例中,脫膜層116在加熱時失去其黏著特性的環氧類熱脫膜材料,諸如光-熱轉換(light-to-heat-conversion,LTHC)脫膜塗層。
在第11圖中,將基底72薄化以暴露穿孔74。在一些實施例中,基底72的暴露表面和穿孔74齊平。穿孔74的暴露可藉由薄化製程完成,例如研磨製程、化學機械研磨製程(CMP)、或其他合適的移除製程。在一些實施例中(未繪示),可進行凹陷製程以使得基底72凹陷,且使得穿孔74自基底72的背側凸起。凹陷製程可為例如適合的回蝕刻製程。可形成一絕緣層於基底72的背側上,包圍並保護穿孔74的凸起部分。
在第12圖中,在基底72的背側上方形成重佈線結構120。重佈線結構120包含介電層122、凸塊下金屬(under bump metallurgies,UBM)124及導電凸塊126。重佈線結構120係繪示作為一個範例。重佈線結構120中可以形成更多或更少的介電層和導電層。如果形成更多介電層和金屬化圖案,以下所述的步驟與製程可重複進行。
作為形成重佈線結構120的一個範例,介電層122沉積在基底72的背側和穿孔74上。在一些實施例中,介電層122可為可使用微影罩幕以圖案化的光敏材料,例如聚苯并噁唑(polybenzoxazole,PBO)、聚醯亞胺、苯環丁烯(benzocyclobutene,BCB)或類似者。介電層122可藉由旋塗、層壓、化學氣相沉積、類似者或其組合形成。然後將介電層122圖案化。圖案化形成開口以暴露穿孔74的一些部分。圖案化可藉由可接受的製程而進行,例如藉由當介電層122為光敏材料時將介電層116曝光,或藉由使用例如非等向性蝕刻的蝕刻。若介電層122為光敏材料,則介電層122可在曝光之後顯影。
然後形成凸塊下金屬124。凸塊下金屬124包含在介電層122的主要表面上並沿其延伸的導線。凸塊下金屬124更包含導孔,延伸穿過介電層122以實體地並電性地連接至穿孔74。晶種層(未繪示)形成於介電層122上方以及形成於經由介電層122形成的開口中。在一些實施例中,晶種層為金屬層,金屬層可為單層或具有由不同材料形成的多個子層的複合層。在一些實施例中,晶種層包含鈦層以及鈦層上方的銅層。晶種層可使用例如物理氣相沉積或類似者而形成。第一光阻128接著在晶種層上形成以及圖案化。第一光阻128可藉由旋塗或類似者而形成且可曝光以圖案化。第一光阻128的圖案對應於凸塊下金屬124。圖案化形成穿過第一光阻122的開口,從而暴露晶種層。導電材料形成於第一光阻128的開口中,位於晶種層的暴露部分上。導電材料可藉由鍍覆形成,例如電鍍或無電式鍍覆或類似者。導電材料可為金屬,如銅、鈦、鎢、鋁或類似者。導電材料與晶種層的組合形成凸塊下金屬124。
接著形成導電凸塊126。第二光阻130在凸塊下金屬124以及第一光阻128上形成以及圖案化。第二光阻130可以是類似於第一光阻128。第二光阻130可曝光以圖案化。第二光阻130的圖案對應於導電凸塊126。圖案化形成穿過第二光阻130的開口,從而暴露凸塊下金屬124的一些部分。導電材料接著形成於第二光阻130的開口中並且位於凸塊下金屬124的暴露部分上。導電材料可藉由鍍覆形成,例如電鍍或無電式鍍覆或類似者。導電材料可包含金屬,例如銅、鈦、鎢、鋁或類似者。由於凸塊下金屬124藉由開口而暴露,因此沒有晶種層形成於開口中。實際上,導電材料直接地以及實體地形成於凸塊下金屬124上。導電材料藉由進行鍍覆製程而形成,此鍍覆製程與用以形成凸塊下金屬124的導電材料的鍍覆製程具有相同的鍍覆製程參數。值得注意的是,沒有晶種層形成於凸塊下金屬124與導電凸塊126之間。實際上,導電凸塊126的導電材料藉由使用凸塊下金屬124的晶種層而進行鍍覆製程而形成。
在第13圖中,在導電凸塊126上形成導電連接件132。可以用例如是焊料的導電材料來形成導電連接件132,且可藉由蒸鍍、電鍍、列印、焊料轉移、植球或類似者之方法在導電凸塊126上初始形成焊料層而形成。當焊料層形成,可進行回焊以便將導電連接件132塑形成所需凸塊形狀。導電連接件132可為球柵陣列(ball grid array,BGA)連接件、焊料球、受控塌陷晶片連接(controlled collapse chip connection,C4)凸塊或類似者。凸塊下金屬124使導電連接件132自穿孔74側向偏移。因為在凸塊下金屬124和導電凸塊126沒有形成晶種層,導電凸塊126是連續性地從凸塊下金屬124延伸至導電連接件132的導電材料。
在第14圖中,進行載體剝離(carrier de-bonding)以使載體基底114自包封體112拆離(剝離)。根據一些實施例,剝離包含將例如雷射光或紫外(ultraviolet,UV)光的光投射於脫膜層116上,以使脫膜層116在光的熱量下分解且可移除載體基底114。此結構隨後翻轉且置放於載帶(tape)上。之後,中介層70在鄰近的裝置區域之間沿切割道區而單體化,以形成第一裝置封裝體100。單體化可藉由鋸切、切割或類似者而進行。藉由單體化製程,中介層70的邊緣與包封體112的邊緣毗連(coterminous)。換言之,中介層70的外側壁與包封體112的外側壁具有相同寬度。載體剝離之後,可選擇性地移除第一光阻128和第二光阻130。
在第15圖中,第二裝置封裝體200藉由將第一裝置封裝體100安裝至封裝基底202而形成。封裝基底202可由例如矽、鍺或類似者的半導體材料製成。或者,亦可使用化合物材料,例如矽鍺、碳化矽、砷化鎵、砷化銦、磷化銦、矽鍺碳化物、磷化砷化鎵、磷化鎵銦、這些的組合及類似者。此外,封裝基底202可為絕緣體上半導體基底。在一些實施例中,絕緣體上半導體基底包含半導體材料層,半導體材料例如是磊晶矽、鍺、矽鍺、絕緣體上半導體或其組合。在另一實施例中,封裝基底202是基於例如玻璃纖維強化樹脂核心為主的絕
緣核心。核心材料的一個範例是例如是FR4的玻璃纖維樹脂。核心材料的替代物包含雙馬來亞醯胺三嗪(bismaleimide-triazine,BT)樹脂,或在其他實施例中包含其他印刷電路板(printed circuit board,PCB)材料或膜。例如味素累積膜(Ajinomoto build-up film,ABF)的累積膜或其他疊層物可用於封裝基底202。
封裝基底202可包含主動元件以及被動元件。所屬領域中具通常知識者將認識到,例如電晶體、電容器、電阻器、這些的組合及類似者的廣泛多種裝置可用以生成產生第二裝置封裝體200的設計的結構要求以及功能要求。這些裝置可使用任何適合的方法形成。
封裝基底202亦可包含金屬化層、導孔、以及金屬化層和導孔上方的焊墊204。金屬化層可形成於主動元件以及被動元件上方,且設計以連接各種裝置以形成功能電路。金屬化層可由介電質(例如,低介電常數介電材料)以及導電材料(例如,銅)的交替層形成,其中導孔內連導電材料層,且可經由任何適合的製程(例如沉積、鑲嵌、雙鑲嵌或類似者)而形成。在一些實施例中,封裝基底202實質上不含主動元件以及被動元件。
將導電連接件132回焊以將第一裝置封裝體100附接至焊墊204,藉此將中介層70接合至封裝基底202。導電連接件132將封裝基底202(包含封裝基底202中的金屬化層)電性地以及實體地耦接至第一裝置封裝體100。如前所述,實體地隔開底部填充材料110的一些部分可降低第一裝置封裝體的翹曲。可以降低封裝基底202與中介層70之間的支架高度差(Stand-offheight variation),這可以有助於避免回焊導電連接件132時造成冷焊點(cold joint)與橋接(bridging)。製程產率可以因而提升。
導電連接件132可以具有在將其回焊之前選擇性地形成於其上的環氧助焊劑(epoxy flux),且在第一裝置封裝體100附接至封裝基底202之後,
環氧助焊劑的至少一些環氧部分保留。保留的環氧部分可以作為底部填充物,以降低應力並保護通過回焊導電連接件132而產生的焊點。
在一些實施例中,可在將被動裝置(例如,表面安裝裝置(surface mount devices,SMD),未示出)安裝於封裝基底202上之前,將被動裝置附接至第二裝置封裝體200(例如,接合至焊墊204)。在此類實施例中,被動裝置可與導電連接件132一樣接合至第二裝置封裝體200的同一表面。
底部填充物206可形成於第一裝置封裝體100與封裝基底202之間,包圍導電連接件132、導電凸塊126以及凸塊下金屬124。由於用以形成凸塊下金屬124的製程,導電連接件132、導電凸塊126以及凸塊下金屬124在形成後並未由介電層或絕緣層包圍。如此一來,底部填充物206直接接觸凸塊下金屬124,且沿凸塊下金屬124的側壁延伸。另外,底部填充物206是自封裝基底202延伸至介電層122的連續材料。底部填充物206可藉由附接第一裝置封裝體100後的毛細管流製程而形成,或可藉由附接第一裝置封裝體100前的適合的沉積方法而形成。
選擇性地,可附接散熱片至第二裝置封裝體200,以覆蓋以及包圍第一裝置封裝體100。散熱片可由具有高熱導率的材料形成,例如鋼、不鏽鋼、銅、類似者或其組合的。散熱片保護第一裝置封裝體100且形成熱途徑以自第二裝置封裝體200的各種組件傳導熱量。
第16A圖至第16D圖是根據一些實施例,形成堆疊半導體裝置的製程中的多個中間階段的剖面示意圖。第16A圖至第16D圖之實施例與第3A圖至第14圖之實施例類似,類似的特徵部件的細節則不再重述。
第16A圖繪示阻擋件108形成之後的第一裝置封裝體100。在第16A圖至第16D圖的實施例中,積體電路裝置50包含具有相同或不同功能的多個裝置50C。積體電路裝置50C是堆疊的裝置,其包含藉由矽穿孔(TSV)56連接
的多個基底52。積體電路裝置50C可以是混合記憶體立方體(HMC)模組、高頻寬記憶體(HBM)模組、或其他具有大垂直高度的堆疊裝置。積體電路裝置50C的背表面設置為與內連線結構76相距高度H4。在一些實施例中,高度H4是在約50微米至約800微米的範圍內。阻擋件108也具有比第1圖至第15圖之實施例更高的高度H3,且高度H3可以小於或大於高度H4。在一些實施例中,高度H3是在約20微米至約800微米的範圍內。由於較大的高度H3,阻擋件108可具有複數個錐形(tapered)側邊,使得阻擋件108的這些側邊與平行於中介層70的前表面的平面形成一銳角θ1。在一些實施例中,銳角θ1是在約70度至約90度的範圍內。換言之,阻擋件108的頂寬度小於阻擋件108的底寬度。
第16B圖繪示配置底部填充材料110之後的第一裝置封裝體100。底部填充材料110在中介層70的邊緣區域具有多個第一填角110A。由於較大的高度H3,底部填充材料110在鄰近阻擋件108的邊緣區域也具有多個第二填角110B。第一填角110A與第二填角110B具有不同的尺寸。第一填角110A的外側壁與平行於積體電路裝置50C的側壁的平面之間具有一個角度θ2。在一些實施例中,角度θ2是在約30度至約60度的範圍內。第二填角110B的外側壁與平行於積體電路裝置50C的側壁的平面之間具有一個角度θ3。在一些實施例中,角度θ3是在約30度至約60度的範圍內。第二填角110B與平行於阻擋件108的側壁的平面之間也形成一個角度θ4。在一些實施例中,角度θ4是在約30度至約60度的範圍內。角度θ3與角度θ4可以是相同或不同。在一些實施例中,角度θ3與角度θ4可以是大於角度θ2。在一些實施例中,角度θ3大角度θ4。此外,底部填充材料110具有由第二填角110B形成的下凹的最頂表面(concave topmost surface)。由於角度θ1是銳角,第二填角110B的上部比第二填角110B的下部更寬,且第二填角110B具有一個內角θ5是鈍角。
第16C圖繪示移除阻擋件108且形成包封體112之後的第一裝置封裝體100。在底部填充缺口111中的包封體112的部分與阻擋件108具有相同的形狀。在底部填充缺口111中的包封體112的這些部分具有一個直線部分(straight portion)及一個曲線部分(curved portion)(由第二填角110B所形成)。接著將此結構翻轉以置放於載帶(tape)上。
第16D圖繪示單體化製程之後的第一裝置封裝體100。中介層70在鄰近的裝置區域之間沿切割道區而單體化,以形成裝置封裝體。切割道區可以是位於第二填角110B之間的底部填充缺口111。單體化可藉由鋸切、切割或類似者而進行。藉由單體化製程,包封體112沿第一填角110A具有第一區域112A、沿第二填角110B具有第二區域112B。第二區域112B在與第二填角110B的下凹的表面的介面處具有凸起表面。
第17圖是根據一些實施例之堆疊半導體裝置的剖面示意圖。第17圖的實施例與第9B圖的實施例類似,差別在於位於邊緣晶粒(例如,積體電路裝置50B)之下的底部填充材料110的一些部分的填角110A和110B具有不同的弧線(arc)長度。特別而言,填角110A的弧線長度大於填角110B的弧線長度。此外,位於中心晶粒(例如,積體電路裝置50A)之下的底部填充材料110的一些部分的填角110A和110B具有相同的弧線長度。
實施例可達到一些優點。藉由底部填充缺口111將底部填充材料110的一些部分實體地分隔開來,可以降低高溫製程時的第一裝置封裝體100的翹曲。藉由形成並移除阻擋件108來形成底部填充材料110的缺口相較於以其他方法形成底部填充缺口111可具有優勢。特別而言,使用阻擋件108可有助於防止第一裝置封裝體的破裂及脫層。
在一實施例中,方法包含:將複數個積體電路裝置附接至一中介層(interposer)的一第一表面,此些積體電路裝置在側向上藉由複數個分別的
間隙分隔開來;在此些間隙中形成一填充材料,以在此些間隙中形成複數個阻擋件(dam);在此些積體電路裝置與中介層之間配置一底部填充材料(underfill material);移除此些阻擋件以在底部填充材料中形成複數個底部填充缺口;以及藉由一包封體(encapsulant)封裝此些積體電路裝置,包封體設置於此些底部填充缺口中。
在此方法的一些實施例中,在間隙中形成填充材料包含:在間隙中配置一紫外光固化樹脂;以及固化紫外光固化樹脂以形成阻擋件。在此方法的一些實施例中,固化紫外光固化樹脂包含:將紫外光固化樹脂暴露在一紫外光源下。在此方法的一些實施例中,固化填充材料增加了紫外光固化樹脂的黏度。在此方法的一些實施例中,紫外光固化樹脂是丙烯酸酯。在此方法的一些實施例中,在移除阻擋件之後,底部填充材料包含沿積體電路裝置的一子組件(subset)的複數個第一側邊的複數個填角(fillet),此些第一側邊沿中介層的複數個邊緣區域設置。在此方法的一些實施例中,包封體沿積體電路裝置的子組件的複數個第二側邊延伸。在此方法的一些實施例中,此方法更包含:在中介層的一第二表面上形成一重佈線結構;以及藉由複數個導電連接件將一封裝基板附接至重佈線結構。
在一實施例中,方法包含:將一第一積體電路裝置和一第二積體電路裝置附接至一中介層的一第一表面,第一積體電路裝置和第二積體電路裝置藉由一間隙分隔開來;在間隙中形成一阻擋件;在中介層上形成一底部填充物(underfill),底部填充物具有位於第一積體電路裝置之下的一第一部分,底部填充物具有位於第二積體電路裝置之下的一第二部分,阻擋件實體地將第一部分和第二部分分隔開來;移除阻擋件以形成一開口暴露中介層;以及藉由一包封體封裝第一積體電路裝置和第二積體電路裝置,包封體設置於開口中。
在此方法的一些實施例中,阻擋件的一寬度小於間隙的一寬度。在此方法的一些實施例中,阻擋件的一寬度等於間隙的一寬度。在此方法的一些實施例中,阻擋件具有一上部與下部,上部的一寬度小於間隙的一寬度,下部的一寬度大於間隙的一寬度。在此方法的一些實施例中,阻擋件具有附數個錐形(tapered)側邊,阻擋件的此些錐形側邊與平行於中介層的第一表面的一平面形成一銳角。在此方法的一些實施例中,底部填充物沿第一積體電路裝置和第二積體電路裝置的複數個第一側邊延伸,第一積體電路裝置和第二積體電路裝置的複數個第二側邊不具有底部填充物。在此方法的一些實施例中,底部填充物沿第一積體電路裝置和第二積體電路裝置的複數個第一側邊和複數個第二側邊延伸,沿此些第一側邊的底部填充物的複數個部分形成複數個第一填角,沿此些第二側邊的底部填充物的複數個部分形成複數個第二填角,此些第一填角和此些第二填角具有不同的尺寸。在此方法的一些實施例中,第二填角具有一下凹的最頂表面(concave topmost surface)。
在一實施例中,封裝體包含:具有一第一側邊的一中介層;一第一積體電路裝置附接至中介層的第一側邊;一第二積體電路裝置附接至中介層的第一側邊;一底部填充物設置於第一積體電路裝置和第二積體電路裝置之下;以及一包封體,設置以環繞第一積體電路裝置和第二積體電路裝置,包封體的一第一部分延伸穿過底部填充物,包封體的第一部分實體地設置於第一積體電路裝置和第二積體電路裝置之間,包封體的第一部分與底部填充物的複數個邊緣以及第一積體電路裝置和第二積體電路裝置的複數個邊緣共平面。
在此封裝體的一些實施例中,包封體的第一部分具有一上部寬度與一下部寬度,上部寬度大於下部寬度。在此封裝體的一些實施例中,包封體的第一部分具有一上部寬度與一下部寬度,上部寬度小於下部寬度。在此封裝體的一些實施例中,包封體的第一部分具有一均勻的寬度。
以上概述數個實施例之部件特徵,以便在本發明所屬技術領域中具有通常知識者可以更加理解本發明實施例的觀點。在本發明所屬技術領域中具有通常知識者應理解,他們能輕易地以本發明實施例為基礎,設計或修改其他製程和結構,以達到與在此介紹的實施例相同之目的及/或優勢。在本發明所屬技術領域中具有通常知識者也應理解,此類等效的結構並無悖離本發明實施例的精神與範圍,且他們能在不違背本發明實施例之精神和範圍下,做各式各樣的改變、取代和替換。因此,本發明之保護範圍當視後附之申請專利範圍所界定為準。
50A、50B:裝置
70:中介層
100:第一裝置封裝體
200:第二裝置封裝體
110:底部填充材料
111:底部填充缺口
112:包封體
122:介電層
124:凸塊下金屬
126:導電凸塊
132:導電連接件
202:封裝基底
204:焊墊
206:底部填充物
Claims (14)
- 一種封裝體的形成方法,包括:將複數個積體電路裝置附接至一中介層(interposer)的一第一表面,該些積體電路裝置在側向上藉由複數個分別的間隙分隔開來,其中該中介層包含一基底、位於該基底內的多個穿孔、以及位於該基底上且連接該些穿孔的一內連線結構;在該些間隙中形成一填充材料,以在該些間隙中形成複數個阻擋件(dam);在該些積體電路裝置與該中介層之間配置一底部填充材料(underfill material);移除該些阻擋件以在該底部填充材料中形成複數個底部填充缺口;以及藉由一包封體(encapsulant)封裝該些積體電路裝置,該包封體設置於該些底部填充缺口中。
- 如申請專利範圍第1項所述之封裝體的形成方法,其中在該些間隙中形成該填充材料包括:在該些間隙中配置一紫外光固化樹脂;以及固化該紫外光固化樹脂以形成該些阻擋件。
- 如申請專利範圍第1項或第2項所述之封裝體的形成方法,其中在移除該些阻擋件之後,該底部填充材料包括沿該些積體電路裝置的一子組件(subset)的複數個第一側邊的複數個填角(fillet),該些第一側邊沿該中介層的複數個邊緣區域設置。
- 如申請專利範圍第3項所述之封裝體的形成方法,其中該包封體沿該些積體電路裝置的該子組件的複數個第二側邊延伸。
- 如申請專利範圍第1項或第2項所述之封裝體的形成方法,更包括:在該中介層的一第二表面上形成一重佈線結構;以及 藉由複數個導電連接件將一封裝基板附接至該重佈線結構。
- 一種封裝體的形成方法,包括:將一第一積體電路裝置和一第二積體電路裝置附接至一中介層的一第一表面,該第一積體電路裝置和該第二積體電路裝置藉由一間隙分隔開來,其中該中介層包含一基底、位於該基底內的多個穿孔、以及位於該基底上且連接該些穿孔的一內連線結構;在該間隙中形成一阻擋件;在該中介層上形成一底部填充物(underfill),該底部填充物具有位於該第一積體電路裝置之下的一第一部分,該底部填充物具有位於該第二積體電路裝置之下的一第二部分,該阻擋件實體地將該第一部分和該第二部分分隔開來;移除該阻擋件以形成一開口暴露該中介層;以及藉由一包封體封裝該第一積體電路裝置和該第二積體電路裝置,該包封體設置於該開口中。
- 如申請專利範圍第6項所述之封裝體的形成方法,其中該阻擋件的一寬度小於或等於該間隙的一寬度。
- 如申請專利範圍第6項所述之封裝體的形成方法,其中該阻擋件具有一上部與下部,該上部的一寬度小於該間隙的一寬度,該下部的一寬度大於該間隙的一寬度。
- 如申請專利範圍第6項所述之封裝體的形成方法,其中該阻擋件具有複數個錐形(tapered)側邊,該阻擋件的該些錐形側邊與平行於該中介層的該第一表面的一平面形成一銳角。
- 如申請專利範圍第6項所述之封裝體的形成方法,其中該底部填充物沿該第一積體電路裝置和該第二積體電路裝置的複數個第一側邊延伸,該 第一積體電路裝置和該第二積體電路裝置的複數個第二側邊不具有該底部填充物。
- 如申請專利範圍第6項所述之封裝體的形成方法,其中該底部填充物沿該第一積體電路裝置和該第二積體電路裝置的複數個第一側邊和複數個第二側邊延伸,沿該些第一側邊的該底部填充物的複數個部分形成複數個第一填角,沿該些第二側邊的該底部填充物的複數個部分形成複數個第二填角,該些第一填角和該些第二填角具有不同的尺寸。
- 一種封裝體,包括:具有一第一側邊的一中介層,其中該中介層包含一基底、位於該基底內的多個穿孔、以及位於該基底上且連接該些穿孔的一內連線結構;一第一積體電路裝置附接至該中介層的該第一側邊;一第二積體電路裝置附接至該中介層的該第一側邊;一底部填充物設置於該第一積體電路裝置和該第二積體電路裝置之下;以及一包封體,設置以環繞該第一積體電路裝置和該第二積體電路裝置,該包封體的一第一部分延伸穿過該底部填充物,該包封體的該第一部分實體地設置於該第一積體電路裝置和該第二積體電路裝置之間,該包封體的該第一部分與該底部填充物的複數個邊緣以及該第一積體電路裝置和該第二積體電路裝置的複數個邊緣共平面。
- 如申請專利範圍第12項所述之封裝體,其中該包封體的該第一部分具有一上部寬度與一下部寬度,該上部寬度大於或小於該下部寬度。
- 如申請專利範圍第12項所述之封裝體,其中該包封體的該第一部分具有一均勻的寬度。
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