TWI283919B - A semiconductor device - Google Patents

A semiconductor device Download PDF

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Publication number
TWI283919B
TWI283919B TW092119251A TW92119251A TWI283919B TW I283919 B TWI283919 B TW I283919B TW 092119251 A TW092119251 A TW 092119251A TW 92119251 A TW92119251 A TW 92119251A TW I283919 B TWI283919 B TW I283919B
Authority
TW
Taiwan
Prior art keywords
bonding
memory chip
package substrate
semiconductor device
memory
Prior art date
Application number
TW092119251A
Other languages
English (en)
Other versions
TW200409333A (en
Inventor
Takashi Miwa
Yasumi Tsutsumi
Masahiro Ichitani
Takanori Hashizume
Masamichi Sato
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of TW200409333A publication Critical patent/TW200409333A/zh
Application granted granted Critical
Publication of TWI283919B publication Critical patent/TWI283919B/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/065Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00
    • H01L25/0657Stacked arrangements of devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/12Mountings, e.g. non-detachable insulating substrates
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/18Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different subgroups of the same main group of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L2224/31Structure, shape, material or disposition of the layer connectors after the connecting process
    • H01L2224/32Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
    • H01L2224/321Disposition
    • H01L2224/32135Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
    • H01L2224/32145Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805Shape
    • H01L2224/4809Loop shape
    • H01L2224/48091Arched
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    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48225Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
    • H01L2224/48227Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/49Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
    • H01L2224/491Disposition
    • H01L2224/4912Layout
    • H01L2224/49171Fan-out arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01L2225/00Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
    • H01L2225/03All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
    • H01L2225/04All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
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    • H01L2225/06503Stacked arrangements of devices
    • H01L2225/0651Wire or wire-like electrical connections from device to substrate
    • HELECTRICITY
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    • H01L2225/00Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
    • H01L2225/03All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
    • H01L2225/04All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
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    • H01L2225/06503Stacked arrangements of devices
    • H01L2225/06527Special adaptation of electrical connections, e.g. rewiring, engineering changes, pressure contacts, layout
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2225/00Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
    • H01L2225/03All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
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    • H01L2225/065All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers the devices being of a type provided for in group H01L27/00
    • H01L2225/06503Stacked arrangements of devices
    • H01L2225/06541Conductive via connections through the device, e.g. vertical interconnects, through silicon via [TSV]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2225/00Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
    • H01L2225/03All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
    • H01L2225/04All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
    • H01L2225/065All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers the devices being of a type provided for in group H01L27/00
    • H01L2225/06503Stacked arrangements of devices
    • H01L2225/06555Geometry of the stack, e.g. form of the devices, geometry to facilitate stacking
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    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/52Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
    • H01L23/538Arrangements 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
    • H01L23/5386Geometry or layout of the interconnection structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10Details of semiconductor or other solid state devices to be connected
    • H01L2924/11Device type
    • H01L2924/14Integrated circuits
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    • H01L2924/14Integrated circuits
    • H01L2924/143Digital devices
    • H01L2924/1433Application-specific integrated circuit [ASIC]
    • HELECTRICITY
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    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/151Die mounting substrate
    • H01L2924/153Connection portion
    • H01L2924/1531Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
    • H01L2924/15311Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Lead Frames For Integrated Circuits (AREA)

Description

1283919 玫、發明說明: 【發明所屬之技術領域】 本發明係關於半導體裝置,例如係關於可有效利用於在 封裝基板將多數半導體晶片搭載成疊層構造所構成之半 體裝置之技術。 【先前技術】 在封裝基板將半導體晶片組裝成疊層構造之疊層lsi (大 型積體電路),一般多半會組合既有半導體晶片,並以封裝 體之配線施行共用之訊號及、電源/接地端之連接。依據完鲁 成本發明後所作之公知例之調查,作為與本發明有關連之 資料,據報告有日本特開平2000_4353 1號公報存在。但, 孩公報所記載之技術傾向於設法減少有關疊層封裝lsi之 機種設計開發之時間與勞力,如後所述,欠缺朝向封裝基 板之外型尺寸之小型化、薄型化上之考慮。 【發明所欲解決之問題】 、&構成疊層封裝LSI<2個晶片中共用之訊號及、電源/接地 端由於未必一定將墊配置於容易在晶片間連接之處,在封_ 裝基板上連接配線時,也常會遇到必須交又配線,或配線 極端地密集之情形,封裝基板之配線層數增多,或外型尺 寸變大時’會造成小型薄型化之障礙。為個別地設置所搭 載之晶片之連接端子而需要較寬之端子排列區域也就成了 封裝體外型尺寸增大之重要因.素。 圖19至圖21係表示在本發明之前所探討之疊層封裝lsi 之例。微電LSI|| $憶體LSI係分別由既有之半導體晶片 所構成。圖19中分別表示構成叠層封裝⑶之微電腦⑶、 85980 1283919 記憶體LSI及封裝基板。微電腦LSI與記憶體LSI係分別由既 有之半導體晶片所構成。圖20中表示在基板上搭載微電腦 LSI與記憶體LSI後,再施行接合後之外觀,圖21中表示剖 面圖。 如前述圖19至圖21所示,疊層封裝LSI之構造係在將記憶 體LSI晶片接合於玻璃環氧構成之封裝基板上後,將微電腦 LSI重疊並施以晶片接合,將各晶片與基板間連線焊接後, 以樹脂塑模成型,在背面端子部附設焊料球。 φ 在圖19中,微電腦LSI係將與記憶體等連接用之位址端 子、資料端子分別集中配置於鄰接之邊。此構成在平面地 安裝微電腦LSI與記憶體LSI等時,可在安裝基板上,朝向 記憶體等以最短距離且集中地配置位址匯流排及資料匯流 排。另一方面,記憶體LSI由於端子數本身較少及為了對應 於標準的封裝體之外部端子排列,在一邊主要配置著位址 端子,在與此相對向之另一邊配置著資料端子。 將排列著如上所述之接合墊之微電腦LSI與記憶體LSI予0 以疊層時,例如,使微電腦LSI與記憶體LSI之位址端子之 方向一致時,資料端子之方向會不一致,為了在封裝基板 連接配線,有必要採用繞道連接。而且,在上述應該一致 之位址端子方面,也會因接合墊之間距在微電腦LSI與記憶 體LSI中之不一致,而有在大部分之情形必須獨立地設置端 子之情事。 因此,在封裝基板中,接合端子數(接合導線)會增加,無 法以1行排完接合導線,故如圖20之例所示,有配置成2行 85980 1283919 記憶體LSI為具有約8 Μ位元之記憶容量之靜態型RAM, 唯並未特別限定於此,其半導體晶片之形狀為長方形,使 位址端子與資料端子在短邊側分開而設有接合墊。與此種 記憶體LSI相比,微電腦LSI之晶片形狀呈現大致正方形, 且外型尺寸小於上述記憶體LSI。故如前所述,呈現在將記 憶體LSI晶片接合於封裝基板上後,將微電腦LSI重疊並施 以晶片接合,將各晶片與基板間連線焊接之構成。 上述封裝基板為了縮小外型尺寸,以大致正方形方式對| 外周確保最大之面積。如此,記憶體LSI之短邊側即不會有 面積的餘裕,故沿著其外周配置以長方形表示之接合導 線,使連到通孔之配線之拉出方向朝向封裝基板之内侧。 對於對應於上述位址端子及資料端子之接合導線,將其所 對應之通孔排列在基板之内側。相對地,由於記憶體L SI 之長邊側有面積的餘裕,故以夾著接合導線方式將通孔交 互分散配置於兩側。 如上所述,微電腦LSI係將位址端子與資料端子集中配置< 於相對向之邊。又,對與記憶體LSI之連接無助益之端子類 則主要配置於其他邊。因此,即使與記憶體LSI疊層,也不 會有相連接之端子彼此之方向不一致之事發生。為了防止 更進一步疊層而接合時,金屬線複雜地交叉,微電腦LSI 與記憶體LSI之端子一併地調整間距。也就是說,金屬線複 雜地交叉時,例如在如圖21所示,縱方向重疊3條金屬線之 情形、與如圖3所示,無交叉而重疊2條金屬線之情形,可 減薄模塑體(封裝樹脂體)之厚度。 85980 -12- 1283919 接合墊則密集配置在靠近基板之中央,其結果,金屬線呈 現放射狀集中於靠近基板之中央位置。此結果,可能發生 金屬線通過鄰接之其他導線之上空而被接合,以致於使得 鄰接導線與金屬線發生短路之可能性較高之問題。 圖7係表示本發明所使用之封裝基板之另一實施例之上 面圖。本實施例傾向於說明避免產生如前述圖5之實施例所 示金屬線通過鄰接之其他導線之上空而被接合之部分之可 能性問題之方法。在本實施例中,考慮施行接合導線與% 電腦LSI及記憶體LSI之對應之接合墊之連接之金屬線方向 而將接合導線傾斜配置。圖8係表示在此種封裝基板疊層搭 載記憶體LSI與微電腦LSI並予以接合之外觀。 在圖8中,在記憶體LSI與微電腦LSI共同施行接合之接合 導線中,雖然有至少2條金屬線呈現放射狀而朝向微電腦 LSI及記憶體LSI之對應之接合墊,但利用使此此方向與接 合導線之長度方向大致相同之方式,以消除金屬線通過鄰 接之其他導線之上空而被接合之部分。且,與此同時,消 除金屬線複雜交叉之現象,頂多也只有2條對應於微電腦 LSI與記憶體LSI之金屬線重疊,故可薄化模塑體之厚度。 圖9係表示本發明所使用之封裝基板之另一實施例之上 面圖。本實施例傾向於說明避免產生如前述圖5之實施例所 示金屬線通過鄰接之其他導線之上空而被接合之部分之問 題之方法。在本實施例中,在鄰接導線之金屬線通過上空 之部分設置缺口,以便一面降低鄰接導線與金屬線發生短 路之可能性,一面將導線之間距縮小至必要之最低限。圖 85980 -15- 1283919 1 0係表示在此種封裝基板疊層搭載記憶體LSI與微電腦LSI 並予以接合之外觀。 在圖10中,如前所述,在記憶體LSI與微電腦LSI共同施 行接合之接合導線中,至少2條金屬線呈現放射狀而朝向微 電腦LSI及記憶體LSI之對應之接合墊,微電腦LSI之金屬線 有必要連接於導線之較裏面(外側)。此結果,可能產生金屬 線通過鄰接之其他導線之上空而被接合之部分,而有導致 鄭接導線與金屬線發生短路之可能性升高,但由於在上 鄰接金屬線通過上空之部分之導線設置缺口,故可避免鄰· 接導線與金屬線發生短路之問題。 圖11係表示本發明之半導體裝置之另一實施例之局部外 觀圖。本實施例係例示地表示封裝基板搭載1個半導體晶片 LSI之情形之外觀之一部分。在本實施例中,搭載於封裝基 板之半導體晶片係搭載1個半導體晶片LSI。當然,也可同 樣週用於在此半導體晶片LSI上疊層其他半導體晶片之構 造之情形。 本貫施例係適用於設在半導體晶片LSI之接合墊數較_ 多’而無法在基板上將接合導線排成1行之情形。此時,將 接合導線排成2行,使内側與外側之行交互地形成所謂交錯 •置此理由係為了消除連接接合導線與接合塾之鄰接金 屬線彼此之重疊及確保由外側之接合導線延伸至設於内側 之通孔之配線之形成區域。 “圖12係表示本發明之半導體裝置之另一實施例之局部外 觀圖。本實施例係有關前述圖12之實施例之改良,例示地 85980 -16 - 1283919 表示封裝基板搭載1個半導體晶片LSI之情形之外觀之一部 分。在如述圖11之貫施例中,會產生由外側之接合導線延 伸之金屬線通過内側之其他導線之上空而被接合之部分, 而具有内側之導線與金屬線發生短路之可能性升高之可能 性。 在本實施例中,為了避免此問題,考慮施行接合導線與 半導體晶片LSI之對應之接合墊之連接之金屬線方向而將 接合導線傾斜配置。利用使接合導線與其所連接之金屬線I 大致朝向相同方向而成放射狀,以消除金屬線通過内側之 其他導線之上空而被接合之部分。且,與此同時,消除金 屬線彼此交叉之現象’故可防止金屬線彼此之短路,並薄 化模塑體之厚度。 圖13係表示本發明之半導體裝置之另一實施例之局部外 觀圖。本實施例係有關前述圖12之實施例之改良,例示地 表示封裝基板搭載1個半導體晶片LSI之情形之外觀之一部
分。在前述圖12之實施例中,將導線排列成多行使導線之 傾斜與金屬線方向一致時,愈往外側,導線間隔愈寬。反 之,内侧之導線之角部之間隔會變窄,可能發生由外側之 導線延伸之配線無法通過之情形。為了避免此問題,在本 實施例中,因此,將放射狀擴散之導線之内周角部形成缺 口,以確保配線通過所需之空間寬度,因此,無需將接合 區域擴大至必要程度以上,即可施行配線之繞道連接。 圖1 5係表示本發明所使用之微電腦LSI之一實施例之區 塊圖。同圖之各電路區塊係利用公知之CMOS (互補型MOS) 85980 -17- 1283919 半導體積體電路之製造技術形成餘如單晶矽等之1個基板 上。 上述4政電腦 LSI係利用 RISC (Reduced instruction set computer :精簡指令集運算)型之中央處理裝置CPU,實現高性能之 運算處理’將必要之周邊機器聚集形成於系統構成上,以 便適合於可攜式機器之應用,唯並非特別限制於此。中央 處理裝置CPU具有RISC型指令集,基本指令執行管線處理, 以1 ^曰令1狀怨(1系統時鐘週期)執行動作。以此中央處理裝I 置CPU與資料訊號處理器DSP為中心,例如向行動電話機搭 載以下之周邊電路。 内部匯流排係由I匯流排、γ匯流排、X匯流排、L匯流排 及周邊匯流排所構成,為了可利用最少零件數構成用戶系 統,作為内建周邊模組,設有適合於圖像處理之記憶體 XYMEM、記憶體控制器XYCNT。此記憶體XYMEM及記憶
體控制器XYCNT係連接於I匯流排、X、γ匯流排及l匯流排 ’執行圖像處理用之資料輸出入及顯示動作用之資料輸出 動作。 上述I匯流排中設有快取記憶體CACHE及快取記憶體控 制器CCN、記憶體管理控制器MMU、翻譯後援緩衝器TLB、 中斷控制器INTC、時鐘振盪器/看門狗定時器CPG/WDT、 視訊I/O模組VIO及外部匯流排介面,經由此外部匯流排介 面連接於前述記憶體LSI。 L匯流排中連接上述快取記憶體CACHE及快取記憶體控 制器CCN、記憶體管理控制器MMU、翻譯後援緩衝器TLB、 85980 -18- 1283919 設有電源接聊。 記憶體LSI具有約8 Μ位元之記憶容量,以16位元之單位 施行記憶體存取,故作為位址端子,有Α0〜Α1 8之19位元之 接腳。微電腦LSI如上所述,作為位址端子,有Α0〜Α25之 26個,但在微電腦LSI與記憶體LSI共同連接者為19個,與 資料用接腳加起來,為19+16=35支接腳。 此外,作為共同被連接之控制訊號用之接腳,有WE (允
許寫入)、0E (允許輸出)、US (選擇上位)、LS (選擇下位 用之4支接腳,唯並非特別限制如此。訊號US係指示寫入16 位元之資料中之上位8位元,訊號LS係指示寫入16位元之資 料中之下位8位元。因此,在微電腦LSI與記憶體LSI共同連 接者,就整體而言,為39支之少數接腳。因此,為了配合 記憶體LSI之上述共同連接之接腳之配置,在微電腦LSI 中,如同圖之黑圓所示,將資料用之接合墊及位址用之接 合墊隔三跳四地分散配置。
圖16係表示在本發明之半導體裝置之一實施例之基板上 搭載記憶體LSI與微電腦LSI後施行接合後之外觀圖。本實 施例係表示搭載前述圖14、圖15所示之微電腦LSI與約8M 位元之SRAM構成之記憶體LSI之疊層封裝LSI。同圖中,以 圓表示設於封裝基板之背面之焊料球。
在本實施例中,設於基板之接合導線中,塗上黑色者係 表示金屬線由該處向記憶體LSI與微電腦LSI延伸而共同地 被連接。圖17係表示其局部放大圖,接合導線沿著金屬線 之延長方向傾斜,使由接合導線向記憶體LSI與微電腦LSI 85980 -20- 1283919 延伸之金屬線不致於互相交叉。又,此構成也可防止由鄰 接導線延伸之金屬現在接合導線之上空交叉。 圖18係表示使用於圖16之半導體裝置之封裝基板之一實 施例之上面圖。在基板之上邊與下邊,設有包含前述記憶 體LSI與微電腦LSI之資料端子與位址端子之接合導線。此 等設於上下邊之接合導線係沿著最外周而被配置。相對地, 僅連接於微電腦LSI之接合導線則以其為中心,左右分散地 設有通孔。也就是說,在左右之邊,於最外周設有通孔。| 以上述接合導線為中心而左右分散之通孔數並非如前述圖 1之實施例所示般地一律交互均等地分散,而係考慮基板上 之空間後,適宜地決定其數量。 在上述實施例中,由於將封裝基板上之配線繞道連接抑 制在最小限,故可將外型尺寸抑制在較小尺寸。由於無交 叉配線,封裝配線可利用表背2層予以連接,故可使用薄型 而廉價之基板。更由於金屬線之交叉也可加以抑制,故可 薄化模塑體部。附帶而言,採用前述本案發明之前所探討φ 之圖19所示之構成時,利用1_4 mm只能製成LFBGA之半導 體裝置,若改用前述圖16所示之構成時,1.2 mm卻能實現 製成如TFBGA般小1級之半導體裝置。 以上,已就本發明人所創見之發明,依據前述實施例予 以具體說明,但本案發明並不僅限定於前述實施例,在不 脫離其要旨之範圍内,當然可作種種適當之變更。例如, 記憶體LSI除了前述之SRAM以外,也可使用動態型RAM、 快閃記憶體(EEPROM)。微電腦LSI只要屬於包含微處理器 85980 -21 - 1283919 圖5係表示本發明所使用之封裝基板之一實施例之上面 圖。 圖6係表示在圖5之基板上搭載記憶體lsi與微電腦LSI後 施行接合之外觀圖。 圖7係表示本發明所使用之封裝基板之另一實施例之上 面圖。 圖8係表示在圖7之基板上搭載記憶體LSI與微電腦LSI後 施行接合之外觀圖。 圖9係表示本發明所使用之封裝基板之另一實施例之上 面圖。 /圖1〇係表示在圖9之基板上搭載記憶體LSI與微電腦LSI 後施行接合之外觀圖。 圖11係表示本發明之半導體裝置之另一實施例之局部外 觀圖。 圖12係表示本發明之半導體裝置之另一實施例之局部外 觀圖。 圖13係表示本發明之半導體裝置之另一實施例之局部外籲 觀圖。 圖14係表示本發明所使用之微電腦乙“之一實施例之區 塊圖。 圖係表示圖丨4之微電腦LSI之一實施例之概略接腳配 置圖。 圖16係表示在本發明之半導體裝置之一實施例之基板上 搭載記憶體LSI與微電腦LSI後施行接合後之外觀圖。 85980 -23 -

Claims (1)

  1. .................... 光¥7 形日修(更)正替換頁 工283抛?11·號專利申請案 中文申請專利範圍替換本(95年7月) 拾、申请專利範固: 1. 其特徵在於·· 一種半導體裝置 备己憶體晶片,龙伯 ^ ,、係包含··沿著第1邊而對應於位址端子 之弟1接合塾、及、、儿戈 /σ f與上述第1邊相對向之第2邊而對應 於資料端子之第2接合墊者; 封裝基板’其係包含··對應於上述記憶體晶片的第1邊 而汉置之第1接合導線、及對應於上述記憶體晶片的第2 邊而設置之第2接合導線者;及 半導體晶片,其係包含··沿著第1邊而配置之位址輸出 私路用的第3接合整、及第4接合墊者,該第4接合墊包含 訊號處理電路,該訊號處理電路包含使用於沿著與上述 第1邊相對向之第2邊而配置的記憶體存取之資料輸出入 電路及資料處理功能者; 上述第1及第3接合墊係連接於上述封裝基板之共通的 上述第1接合導線,且上述第2及第4接合墊係連接於上述 封裝基板之共通的上述第2接合導線; 於上述封裝基板上搭載有上述記憶體晶片及半導體晶 片而構成疊層構造。 2.如請求項1之半導體裝置,其中,上述半導體晶片與記 憶體晶片相對應之端子彼此係藉由金屬線而連接對於上 述封裝基板之所共通化的接合導線者。 3·如請求項1之半導體裝置,其中,配合上述記憶體晶片 之位址及資料之各接合墊之間距,配置有上述半導體晶 片之相對應之位址及資料之各接合墊,且在上述半導體 85980-9507l3.doc 1283919 晶片之上述位址及資料之各接合墊之間,適宜地配置以 適3於上述記憶體晶片側之間距方式獨自設置於上述半 導體晶片之接合墊者。 •如凊求㉟1之半導體裝置,其中,上述封裝基板係在搭 =有半導體晶片之表面、及設有作為外部端子之球部的 背面分別設置有配線層,並以通孔連接相對應之配線層 者。 5.如請求項4之半導體裝置’其中,上述半導體晶片係構 成單一晶片之微電腦者,上述4邊之中剩下2邊也排列 排列有連接於微電腦所需之外部端子之接合塾者。 6· t凊求㉟5之半導體裝置,其中,上述記憶體晶片係包 含大於上述半導體晶片之面積,且形成上述第丨邊與第2 邊足長度比其他2邊之長度短之長方形,對於對應於上 述記憶體晶片的第1邊與第2邊之接合導線列,並使連 到通孔之配線之拉出方向朝向封裝基板之内側者。 7·如請求項6之半導體裝置,其中,於上述封裝基板之表 面搭載有上述記憶體晶片,於上述記憶體晶片之表面搭 載有上述半導體晶片而成為疊層構造者。 8·如請求項5之半導體裝置,其中,對於對應於上述記憶 體晶片之第1邊與第2邊以外之2邊而設置之接合導線 列,並使連到通孔之配線之拉出方向分別朝向封裝基板 之内側與外側者。 如π求貞8之半導體裝置,其中,與對應於上述記憶體 晶片之第1邊與第2邊而設置之接合導線之長度相比, 85980-950713.doc 1283919 對應於上述記憶體晶片之第丨邊與第2邊以外之2邊而 設置之接合導線之長度較短者。 10.如請求項6之半導體裝置,其中,對應於上述記憶體晶 片 < 上述第1邊與第2邊之封裝基板之接合導線係形成 長方形者,使其長度方向朝向進行連接其所對應之記憶 體晶片及半導體晶片之接合墊之金屬線之沿長方向者。 η.如請求们之半導體裝置’其中,上述第"矣合墊與上 述第3接合墊,分別係配置在與上述封裝基板之共通之 上述第1接合導線同侧,且上述第2接合墊與上述第4 接口墊,分別係配置在與上述封裝基板之共通之上述第2 接合導線同側。 12· —種半導體裝置,其特徵在於包含: 配線基板,其係包含多數接合導線者; 記憶體晶片,其係搭載於上述配線基板之主面上,且 包含多數第1接合墊者; 夕从:知晶片’其係搭載於上述記憶體晶片上,且包含: =數弟2接合塾、也使用於記憶體存取之位址輸出電路及 :料輸出入電路、及具有資料處理功能之訊號處理電路 /、即刀别廷性連接上述記憶體晶> ::第1接合墊與上述配線基板之多數接合導線d 上:金屬線’其係分別電性連接上述微電腦晶片 上述夕數第2接合孰愈μ 上逑配線基板之多數接合導線读 树脂體,其倍_如μ ^ 、上4 Μ電腦晶片、上述記憶體晶片 85980-950713.doc 1283919 上述多數第1金雇 且上述記严A 、7及上述多數第2金屬線者; 、<憶靉晶 電腦晶片露出者0 ^ 述多數第1接合墊係從上述微 13 ·如請求項12夕生f & A第丨、# "a裝置,其中,上述記憶體晶片係包 …邊與較上述第1邊還長之第2邊; 上述記憶體晶片之上述多數第1接合整係沿著上述 邊而配置; 上述彳政電腦晶片係包含多數第3邊; 上述$己憶體晶片之上述第2邊之長度係較上述微電腦 晶片的上述多數第3邊之長度還長者。 85980-950713.doc
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