JP4917296B2 - 半導体装置の製造方法 - Google Patents

半導体装置の製造方法 Download PDF

Info

Publication number
JP4917296B2
JP4917296B2 JP2005314209A JP2005314209A JP4917296B2 JP 4917296 B2 JP4917296 B2 JP 4917296B2 JP 2005314209 A JP2005314209 A JP 2005314209A JP 2005314209 A JP2005314209 A JP 2005314209A JP 4917296 B2 JP4917296 B2 JP 4917296B2
Authority
JP
Japan
Prior art keywords
semiconductor device
lead
semiconductor chip
lead frame
power mosfet
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2005314209A
Other languages
English (en)
Other versions
JP2007123579A (ja
Inventor
俊範 清原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Electronics Corp
Original Assignee
Renesas Electronics Corp
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 Renesas Electronics Corp filed Critical Renesas Electronics Corp
Priority to JP2005314209A priority Critical patent/JP4917296B2/ja
Priority to US11/588,347 priority patent/US7473990B2/en
Publication of JP2007123579A publication Critical patent/JP2007123579A/ja
Application granted granted Critical
Publication of JP4917296B2 publication Critical patent/JP4917296B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367Cooling facilitated by shape of device
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/48Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H01L23/488Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
    • H01L23/492Bases or plates or solder therefor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/48Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H01L23/488Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
    • H01L23/498Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
    • H01L23/49838Geometry or layout
    • H01L23/49844Geometry or layout for devices being provided for in H01L29/00
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L24/31Structure, shape, material or disposition of the layer connectors after the connecting process
    • H01L24/33Structure, shape, material or disposition of the layer connectors after the connecting process of a plurality of layer connectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/34Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
    • H01L24/36Structure, shape, material or disposition of the strap connectors prior to the connecting process
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/34Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
    • H01L24/39Structure, shape, material or disposition of the strap connectors after the connecting process
    • H01L24/40Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L24/83Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L24/84Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a strap connector
    • 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
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/06Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
    • H01L2224/0601Structure
    • H01L2224/0603Bonding areas having different sizes, e.g. different heights or widths
    • 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
    • H01L2224/32151Disposition the layer connector connecting 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
    • H01L2224/32221Disposition the layer connector connecting 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
    • H01L2224/32245Disposition the layer connector connecting 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 metallic
    • 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
    • H01L2224/34Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
    • H01L2224/39Structure, shape, material or disposition of the strap connectors after the connecting process
    • H01L2224/40Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
    • H01L2224/4005Shape
    • H01L2224/4009Loop shape
    • H01L2224/40095Kinked
    • 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
    • H01L2224/34Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
    • H01L2224/39Structure, shape, material or disposition of the strap connectors after the connecting process
    • H01L2224/40Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
    • H01L2224/401Disposition
    • H01L2224/40151Connecting 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
    • H01L2224/40221Connecting 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
    • H01L2224/40225Connecting 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
    • 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
    • H01L2224/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H01L2224/45001Core members of the connector
    • H01L2224/45099Material
    • H01L2224/451Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
    • H01L2224/45117Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
    • H01L2224/45124Aluminium (Al) as principal constituent
    • 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
    • H01L2224/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H01L2224/45001Core members of the connector
    • H01L2224/45099Material
    • H01L2224/451Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
    • H01L2224/45138Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
    • H01L2224/45144Gold (Au) as principal constituent
    • 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
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/83Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • H01L2224/838Bonding techniques
    • H01L2224/83801Soldering or alloying
    • 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
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/83Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • H01L2224/838Bonding techniques
    • H01L2224/8385Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester
    • 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
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/84Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a strap connector
    • H01L2224/848Bonding techniques
    • H01L2224/84801Soldering or alloying
    • 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
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/84Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a strap connector
    • H01L2224/848Bonding techniques
    • H01L2224/8485Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L24/28Structure, shape, material or disposition of the layer connectors prior to the connecting process
    • H01L24/29Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/42Wire connectors; Manufacturing methods related thereto
    • H01L24/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L24/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/00014Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01005Boron [B]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01006Carbon [C]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01013Aluminum [Al]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01014Silicon [Si]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01029Copper [Cu]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01033Arsenic [As]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01047Silver [Ag]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01079Gold [Au]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01082Lead [Pb]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/013Alloys
    • H01L2924/014Solder alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • 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
    • H01L2924/13Discrete devices, e.g. 3 terminal devices
    • H01L2924/1304Transistor
    • H01L2924/1306Field-effect transistor [FET]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • 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
    • H01L2924/13Discrete devices, e.g. 3 terminal devices
    • H01L2924/1304Transistor
    • H01L2924/1306Field-effect transistor [FET]
    • H01L2924/13091Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Geometry (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Description

本発明は、面実装型の半導体装置およびその製造方法ならびにその実装構造に関する。
近年、携帯電話、PC、サーバなど多くの電子機器の小型化に伴い、半導体チップを回路基板に搭載するに際し、実装面積の省スペース化や良好な放熱性が求められている。このため、これまではリードフレーム上に半導体チップを搭載し、金線やアルミ線などで内部接続をした後、樹脂封止するプラスチックモールドパッケージが主流であったが新しい形態のパッケージが提案・開発されている。
例えば、このような省スペース化や放熱性に配慮した従来の半導体装置およびその実装構造の一例を図6に示す。図6(a)は半導体装置の概略構成図であり、図6(b)は、その半導体装置を回路基板に搭載した実装構造を示す概略構成図である。
先ず、図6(a)において、80は半導体チップとしてのパワーMOSFET、80aはソース電極、80bはゲート電極、80cはドレイン電極、81はハンダ、82は第1リード、82aは第1リードの第1端子部、82bは第1リードの第2端子部、84は第2リード、84aは第2リードの第1端子部、84bは第2リードの第2端子部、86は導電板である。
そして、第1リード82の第1端子部82aはソース電極80aに、第2リード84の第1端子部84aはゲート電極80bに、導電板86はドレイン電極80cにそれぞれハンダ81を介して電気的に接続されている。
ここで、第1リード82の第2端子部82bの裏面と、第2リード84の第2端子部84bの裏面と、導電板86の裏面とは同一平面を形成している。
このため、図6(b)に示すように、回路基板に搭載する際に、第1リード82の第2端子部82bの裏面と、第2リード84の第2端子部84bの裏面と、導電板86の裏面とは、すべてが回路基板に隙間なく搭載可能となっている。
このような半導体装置およびその実装構造によると、実装面積を比較的小さくでき、パワーMOSFET80からの発熱をハンダ81および第1,2リード82,84,導電板86を通して、空気中や回路基板に放熱させることができる。(例えば、特許文献1参照)。
また、従来の半導体装置およびその実装構造の他の例を図7に示す。図7(a)は半導体装置の分解斜視図であり、図7(b)は、その半導体装置を回路基板に上下反転させて搭載した実装構造を示す概略構成図である。
先ず、図7(a)において、21はパワーMOSFET、22はソース電極、23はドレイン電極、24はゲート電極、36はハンダ、30,32,34はクリップと呼ぶ導電体であり、38はパッシベーション膜である。
ここで、クリップ30は、ドレイン電極23とハンダ36を介して電気的に接続したベース部30bと、回路基板と接続予定のコンタクト部30cと、それらを繋ぐ延長部30aで一体形成され、クリップ32は、ソース電極22とハンダ36を介して電気的に接続したベース部32bと、回路基板と接続予定のコンタクト部32cと、それらを繋ぐ延長部32aで一体形成され、クリップ34は、ゲート電極24とハンダ36を介して電気的に接続したベース部34bと、回路基板と接続予定のコンタクト部34cと、それらを繋ぐ延長部34aで一体形成されている。
尚、クリップ30は、延長部30aとパワーMOSFET21との間に隙間があくように取り付けられている。
また、クリップ30のコンタクト部30cの外側面と、クリップ32のコンタクト部32cの外側面と、クリップ34のコンタクト部34cの外側面とは、同一平面を形成するように取り付けられている。
このため、図7(b)に示すように、回路基板に搭載する際に、クリップ30のコンタクト部30cの外側面と、クリップ32のコンタクト部32cの外側面と、クリップ34のコンタクト部34cの外側面とは、すべてが回路基板の導電性パッド68,70,72に隙間なく搭載可能となっている。
このような半導体装置および実装構造によると、実装面積を比較的小さくでき、パワーMOSFET21からの発熱をハンダ36およびクリップ30,32,34を通して、空気中や回路基板に放熱させることができる。(例えば、特許文献2参照)。
尚、他の関連文献として、共通電極板を挟んで、複数の半導体チップを含む半導体ユニットをボルトとナットを用いて縦方向に組み立てた構成が提案されている。(例えば、特許文献3参照)。
US2002/0179994A1 Fig.7 US6841865B2 Fig.1A 特開平11−74456号公報 図2
しかしながら、上述のような半導体装置およびその実装構造でも、省スペース化の点で、少なくとも半導体チップの主面の面積よりも大きくなってしまうという制約が残り、まだ十分とは言えなかった。
発明によれば、
主面にソース電極と、裏面にドレイン電極とを有する、パワーMOSFETである半導体チップの主面側に接続予定の金属板を、支持部で支持した形態で所定間隔に配列して連続的に一体形成した第1のリードフレームと、前記第1のリードフレームに対応し、前記半導体チップの裏面側に接続予定の金属板を、支持部で支持した形態で所定間隔に配列して連続的に一体形成した第2のリードフレームを準備する工程と、
前記半導体チップを導電性接着材料を介して前記第1,2のリードフレームで挟むように配置して、前記ソース電極及び前記ドレイン電極と前記第1及び第2のリードフレームとをそれぞれ接続する工程と、
前記第1,2のリードフレームのそれぞれの支持部を切断し半導体装置の部分を前記第1,2のリードフレームから分離して第1及び第2の金属板とする工程とを含み、
前記第1の金属板および前記第2の金属板のうち、前記ソース電極または前記ドレイン電極と当接する第1端面の各裏面に、放熱用フィンを取り付ける工程をさらに含むことを特徴とした半導体装置の製造方法が提供される。
本発明の半導体装置およびその実装構造によると、半導体チップの主面を回路基板に対して垂直に搭載するため実装面積を小さくできる。また、半導体チップの両主面が空間に対向するため、半導体チップの発熱は主に空気中に放熱され回路基板への放熱量を低減できる。このため、その結果として回路基板上の周辺の実装部品の温度上昇を抑制できる。また、本発明の半導体装置の製造方法によると作業性よく、組立精度のよい半導体装置が製造できる。
本発明は、半導体チップを、より小さい実装面積で搭載するとともに良好な放熱性が得られる半導体装置およびその実装構造を提供するという目的を、半導体チップと、半導体チップの表裏両主面の各電極と電気的に接続され、半導体チップの主面の外部領域に主面に対して垂直な同一平面を形成する端面を有する複数の金属板とを備えた半導体装置およびその実装構造により実現した。
本発明の半導体装置およびその実装構造の一例を図1,図2に示す。図1は半導体装置の分解斜視図であり、図2は、その半導体装置を回路基板に搭載した実装構造を示す側面図である。
先ず、図1,2において、1は本発明の半導体装置、2は半導体チップとしてのパワーMOSFET、3はゲート電極、4はソース電極、5はドレイン電極、6はハンダ、7,8,9は金属板である。
ここで、ゲート電極3およびソース電極4はパワーMOSFET2の表側の主面2aに区画されて形成され、ドレイン電極5はパワーMOSFET2の裏側の主面2bの全面に形成されている。
また、金属板7,8,9は、例えば、ハンダ付け性および熱伝導性の良い銅合金などで成るL字形をした一体形成品であり、金属板7,8,9のそれぞれの一方の面として、(図中)L字形の長辺を形成する面のうちのL字形の短辺の突出方向の背面7a,8a,9aの所定部分が、それぞれゲート電極3,ソース電極4,ドレイン電極5とハンダ6を介して電気的に接続されている。
また、金属板7,8,9のそれぞれの他方の面として、(図中)L字形の短辺を形成する面のうち、L字形の長辺の突出方向の背面7b,8b,9bは、パワーMOSFET2の主面2a(2b)の外部領域に、主面2a(2b)に対して垂直な同一平面を形成するように取り付けられている。
尚、背面7b,8b,9bの面積は、背面7b,8b,9bを接地面として半導体装置1が自立可能な面積とする。
このため、図2に示すように、回路基板に搭載する際に、L字形の長辺突出方向の背面7b,8b,9bは、すべてが回路基板に隙間なく自立して搭載可能となっているとともに、パワーMOSFET2の主面2a(2b)は回路基板に対して垂直となる。
このような半導体装置1およびその実装構造によると、パワーMOSFET2の主面2a(2b)を回路基板に対して垂直に搭載するため、比較的面積の小さいパワーMOSFET側面と金属板7,8,9の端面7b,8b,9bの合計面積まで省スペース化が図れるようになる。また、放熱性の点で、面積の大きいパワーMOSFET2の2つの主面2a,2bが回路基板に対向することなく、空間に対向するため、パワーMOSFET2で発生した熱はハンダ6および金属板7,8,9を通してそのほとんどが空気中に放熱され、回路基板の過剰な温度上昇を招くことがなくその結果、周辺の実装部品に悪影響を及ぼすことがない。
次に、パワーMOSFET2の主面2a(2b)への金属板7,8,9の取付け方法は、特に限定するものではないが、例えば、図3に示すように、パワーMOSFET2の裏面2b側に接続予定の金属板9を後工程で切断可能な細い支持部10で支持した形態で所定間隔に配列して連続的に一体形成した第1のリードフレーム11と、第1のリードフレーム11に対応し、パワーMOSFET2の表面2a側に接続予定の金属板7,8を、後工程で切断可能な細い支持部12a,12bで支持した形態で所定間隔に配列して連続的に一体形成した第2のリードフレーム13とを準備する。
そして、第1,2のリードフレーム11,13とパワーMOSFET2とを、パワーMOSFET2をハンダ14などの導電性接着材料を介して第1,2のリードフレーム11,13で挟む格好に保持する位置決め用治具(図示せず)にセットして接続する。
ここで、位置決め用治具(図示せず)は、第1,2のリードフレーム11,13の金属板7,8,9部分の端面7b,8b,9bがパワーMOSFET2の主面2a(2b)に対して垂直な同一平面を形成するように設計されている。
接続が完了したら、次に、図4に示すように、第1,2のリードフレーム11,13のそれぞれの支持部10,12a,12bを切断金型(図示せず)などを用いて切断し半導体装置1となる予定の部分を切断分離する。
このような半導体装置1の製造方法によると、作業性よく組立精度のよい半導体装置1が製造でき好適である。
また、このような半導体装置1の他の例として、図5に示すように、金属板8,9にさらに銅合金またはアルミニウムなどでなる放熱用フィン15a,15bをハンダ16(または銀ペースト)などを介して取り付ける構成とすると空気中への放熱性の向上が図れ、好適である。
尚、上記では、半導体チップとして、比較的発熱量が大きいパワーMOSFETの例で説明したが、特にこれに限るわけではなく、表裏面に電極を有する半導体チップであれば何でもよいことは言うまでもない。また、上記では、金属板7,8,9を銅合金の例で説明したが、特にこれに限るわけではなくハンダや銀ペーストなどの導電性接着剤で接続可能で放熱性がよい材料であれば何でもよい。
本発明は、半導体チップの実装面積を節約できるとともに、放熱性の良好な半導体装置およびその製造方法ならびに実装構造に適用できる。
本発明の半導体装置の一例の分解斜視図 本発明の半導体装置の実装構造の側面図 本発明の半導体装置の製造方法の一例の説明図(1) 本発明の半導体装置の製造方法の一例の説明図(2) 本発明の半導体装置の他の例の側面図 従来の半導体装置とその実装構造の一例の概略構成図 従来の他の例の半導体装置の分解斜視図とその実装構造の概略構成図
符号の説明
1 本発明の半導体装置
2,21,80 パワーMOSFET
2a,2b パワーMOSFET2の主面
3,24,80b ゲート電極
4,22,80a ソース電極
5,23,80c ドレイン電極
6,14,16,36,81 ハンダ
7,8,9 金属板
7a,8a,9a 金属板7,8,9のL字形の短辺の突出方向の背面
7b,8b,9b 金属板7,8,9のL字形の長辺の突出方向の背面
10,12a,12b 支持部
11 第1のリードフレーム
13 第2のリードフレーム
15a,15b 放熱用フィン
30,32,34 クリップ
30a,32a,34a 延長部
30b,32b,34b ベース部
30c,32c,34c コンタクト部
38 パッシベーション膜
68,70,72 導電性パッド
82 第1リードフレーム
82a 第1リードフレームの第1端子部
82b 第1リードフレームの第2端子部
84 第2リードフレーム
84a 第2リードフレームの第1端子部
84b 第2リードフレームの第2端子部
86 導電板

Claims (2)

  1. 主面にソース電極と、裏面にドレイン電極とを有する、パワーMOSFETである半導体チップの主面側に接続予定の金属板を、支持部で支持した形態で所定間隔に配列して連続的に一体形成した第1のリードフレームと、前記第1のリードフレームに対応し、前記半導体チップの裏面側に接続予定の金属板を、支持部で支持した形態で所定間隔に配列して連続的に一体形成した第2のリードフレームを準備する工程と、
    前記半導体チップを導電性接着材料を介して前記第1,2のリードフレームで挟むように配置して、前記ソース電極及び前記ドレイン電極と前記第1及び第2のリードフレームとをそれぞれ接続する工程と、
    前記第1,2のリードフレームのそれぞれの支持部を切断し半導体装置の部分を前記第1,2のリードフレームから分離して第1及び第2の金属板とする工程とを含み、
    前記第1の金属板および前記第2の金属板のうち、前記ソース電極または前記ドレイン電極と当接する第1端面の各裏面に、放熱用フィンを取り付ける工程をさらに含むことを特徴とした半導体装置の製造方法。
  2. 前記第1,2のリードフレームは、その製造過程において、該リードフレームの面と垂直方向の曲げ加工を行う工程を含むことを特徴とした請求項に記載の半導体装置の製造方法。
JP2005314209A 2005-10-28 2005-10-28 半導体装置の製造方法 Expired - Fee Related JP4917296B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005314209A JP4917296B2 (ja) 2005-10-28 2005-10-28 半導体装置の製造方法
US11/588,347 US7473990B2 (en) 2005-10-28 2006-10-27 Semiconductor device featuring electrode terminals forming superior heat-radiation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005314209A JP4917296B2 (ja) 2005-10-28 2005-10-28 半導体装置の製造方法

Publications (2)

Publication Number Publication Date
JP2007123579A JP2007123579A (ja) 2007-05-17
JP4917296B2 true JP4917296B2 (ja) 2012-04-18

Family

ID=37995201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005314209A Expired - Fee Related JP4917296B2 (ja) 2005-10-28 2005-10-28 半導体装置の製造方法

Country Status (2)

Country Link
US (1) US7473990B2 (ja)
JP (1) JP4917296B2 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8686554B2 (en) * 2007-03-13 2014-04-01 International Rectifier Corporation Vertically mountable semiconductor device package
JPWO2010004609A1 (ja) * 2008-07-07 2011-12-22 三菱電機株式会社 電力用半導体装置
JP5126244B2 (ja) * 2010-02-12 2013-01-23 株式会社村田製作所 回路モジュール
FR3028095B1 (fr) * 2014-11-04 2018-01-26 Commissariat A L'energie Atomique Et Aux Energies Alternatives Dispositif electronique de puissance a cellule de commutation 3d verticale
DE102017108172B4 (de) 2017-04-18 2022-01-13 Infineon Technologies Austria Ag SMD-Package und Verfahren zur Herstellung eines SMD-Packages
EP3971957A1 (en) * 2020-09-16 2022-03-23 Infineon Technologies Austria AG Semiconductor package, semiconductor module and methods for manufacturing a semiconductor module
EP4310907A1 (en) * 2022-07-22 2024-01-24 Infineon Technologies Austria AG Semiconductor package and method for fabricating a semiconductor package for upright mounting

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0689957A (ja) * 1992-03-24 1994-03-29 Fuji Electric Co Ltd 面実装型半導体装置
KR950014123B1 (ko) * 1992-09-08 1995-11-21 삼성전자주식회사 반도체 패키지
JP3533317B2 (ja) 1997-08-28 2004-05-31 株式会社東芝 圧接型半導体装置
KR20000057810A (ko) * 1999-01-28 2000-09-25 가나이 쓰토무 반도체 장치
US6791172B2 (en) 2001-04-25 2004-09-14 General Semiconductor Of Taiwan, Ltd. Power semiconductor device manufactured using a chip-size package
US6841865B2 (en) 2002-11-22 2005-01-11 International Rectifier Corporation Semiconductor device having clips for connecting to external elements
JP2004311480A (ja) * 2003-04-02 2004-11-04 Matsushita Electric Works Ltd 半導体発光素子
JP2004349347A (ja) * 2003-05-20 2004-12-09 Rohm Co Ltd 半導体装置
JP2004349331A (ja) * 2003-05-20 2004-12-09 Renesas Technology Corp パワーmosfetとパワーmosfet応用装置およびパワーmosfetの製造方法

Also Published As

Publication number Publication date
US7473990B2 (en) 2009-01-06
JP2007123579A (ja) 2007-05-17
US20070096317A1 (en) 2007-05-03

Similar Documents

Publication Publication Date Title
TWI450373B (zh) 雙側冷卻整合功率裝置封裝及模組,以及製造方法
US6777800B2 (en) Semiconductor die package including drain clip
US8193622B2 (en) Thermally enhanced thin semiconductor package
US8008759B2 (en) Pre-molded clip structure
US7781872B2 (en) Package with multiple dies
JP4917296B2 (ja) 半導体装置の製造方法
JP2001156219A (ja) 半導体装置
KR20130028866A (ko) 클래딩된 베이스 플레이트를 포함하는 반도체 디바이스
JP2004200264A (ja) 半導体装置およびその製造方法
US8278747B2 (en) Semiconductor apparatus having a two-side heat radiation structure
JP2006261221A (ja) 電子回路及び電子機器
JP2006203048A (ja) 半導体装置
JP4435050B2 (ja) 半導体装置
JP4715283B2 (ja) 電力変換装置及びその製造方法
JP4556732B2 (ja) 半導体装置及びその製造方法
JP3215254B2 (ja) 大電力用半導体装置
JPH05166979A (ja) 半導体装置及びその製造方法
JP4091896B2 (ja) 半導体装置の製造方法
JP2017028131A (ja) パッケージ実装体
JP4443503B2 (ja) 半導体装置及びその製造方法
JP2001135767A (ja) 半導体装置およびその製造方法
JP2007305911A (ja) 半導体パッケージ及び半導体モジュール
JP3473525B2 (ja) クアッドフラットパッケージ
JP2006186000A (ja) 高出力半導体装置及びその製造方法
JP5620773B2 (ja) 樹脂封止型半導体装置

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20070705

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080919

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20100426

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110208

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110406

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110809

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110907

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120124

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120126

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150203

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees