TW473410B - Ultrasonic vibration joining device - Google Patents

Ultrasonic vibration joining device Download PDF

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Publication number
TW473410B
TW473410B TW089109893A TW89109893A TW473410B TW 473410 B TW473410 B TW 473410B TW 089109893 A TW089109893 A TW 089109893A TW 89109893 A TW89109893 A TW 89109893A TW 473410 B TW473410 B TW 473410B
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TW
Taiwan
Prior art keywords
pressure
joint
vibration
weighting
resonator
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TW089109893A
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English (en)
Inventor
Shigeru Sato
Mitsugu Katsumi
Seiya Nakai
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Ultex Corp
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Publication of TW473410B publication Critical patent/TW473410B/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B23K20/106Features related to sonotrodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824Actuating mechanisms
    • B29C66/8242Pneumatic or hydraulic drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • B29C66/9292Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams
    • B29C66/92921Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams in specific relation to time, e.g. pressure-time diagrams
    • 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
    • H01L24/74Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
    • H01L24/75Apparatus for connecting with bump connectors or 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
    • H01L24/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L24/81Methods 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 bump connector
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/922Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9221Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B29C66/92441Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time
    • B29C66/92443Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile
    • B29C66/92445Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile by steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/95Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9512Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration frequency
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/95Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9516Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration amplitude

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Wire Bonding (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Description

五、發明說明(1) 發明所屬技術領域 本發明係有關於用超音浊 超音波振動4妾合襄£。 彳振動# 口複數重皆之構件之 習知技術 議-!:i:L=223°8號公報公開般,本專利申請人提 之構件之:ί接ϊ接合裝置,利用超音波振動將複數重叠 發明要解決之課題 況,ί】ΐ ί音波振動接合裴置接合複數重疊之構件之情 複數‘義之::分之大小或材料等物性’有發生因作用於 露&、:構件之接合部分之加壓力過強而接合部分過度 s因加壓力過弱而接合部分剝離等接合不良之可能 性〇 人因此,本發明提供一種超音波振動接合裝置,依據接 二μ1之大小或材料等物性,選擇各種加壓曲線,可適當 的接合。 Φ 解決課題之手段 在t發明,用由接合機構支撐之共振器和組裝機構之 、ί ΐ: :1台將複數重疊之構件加壓保持在其中間後,自和 合之振動器向共振器傳達超音波振動,利用超音 波振動將複數重疊之構件接合,其特徵在於:接合機構具
第4頁 五、發明說明(2) :接合作業之上下驅動機構 部。 接作業之加重控制機構 右依據本發明,葬莫^ 襄位置之組裝工作台二= f構部將共振器移至組 性選擇各種加重_制機接σ部分之大小或材料等物 數重Α之堪:ϊ Ϊ 部自用共振器和組襄工作台將福 双置逢之構件加壓保持開 丨F D將複 加壓力,適當的接合, 曰波振動接合為止之 離。 〇 數重豐之構件不會過度壓垮或剥 以》,± Ϊ本發明’若接合機構利用馬達、气達之於屮鮎 和利用如缸之只是直绩運私、,σ之螺杯•螺中自機構形成, 相比,藉著接人機構將之凡件形成接合機構部之情況 之上下驅動時之速度控制容易。線運動’共振益 又在本發明’若加重控制擒雄JtR J丨m 輪出軸及和支撐共振器之夾利:接合機構部之 重控制機構部用氣壓缸以外形成,和加 控制機構部利用係壓縮性流體d 况相比’加重 重疊之構件之加壓力。體之二乳可適當的調整對複數 統,:給部包括:加壓供給系 顏.及却·贪驻® 隔成之平衡室和加重室加壓空 量-定:加严ί ’依據和加重控制機構部連結之元件之重 且依據接合之構件之大至之加壓空氣之壓力,而 加重室之加壓* j、或材料設定自加壓供給系統供給 二乳之壓力’加重控制機構部可設定振動開
第5頁 五、發明說明(3) 始加重設定值、第一加重壓力定值、第二 及平衡壓力設定值等各種加壓力力疋值以 又,在本發明,若荷重感测器設於 正破的偵測加重控制機構部支榜 件振-側,可 計算該重量。 爻凡件之重量,又也不必 發明之實施例 匕表示本發明之一實施例之超音波振動接合裝置。 在本貝施例,以用以在係第一構件 第二構件之半導體晶片90之裝 ,路板92表面組裝係 在其一表面具有形成平板狀或球妝 ^體日日片90 接端子。電路板92在其一表面之曰月1 片91,作為連 板狀或球狀之複數塾片有形成平 Ϊ電路板側塾…之個數相同:=:置二:塾^ 晶片侧塾片91和電路板侧墊片93利用超音 人藉者 半導體晶片90表面組裝於電路板92。 < 。,將 超音波振動接合裝置大致具備接合機構1、内藏電腦 之控制裝置40、操作盤41以及組裝機構5 備由如伺服馬達之馬 :機冓1具 紫夕μ IT m叙Α德如 踢r目機構3構成之接合作 業之上下驅動機構。卩及由氣壓缸4構成之接合 控制機構部。在氣壓虹4之内部用活塞7㉟成下部之平 而,自平衡空氣供給系統8供給平衡 至5負擔孔堊缸4所支撐几件之重量之加壓空 空氣供給系統U供給加s室6相當於依據接合部分之大口小 1^· 第6頁 五、發明說明(4) f材料等物性在接合時所需之加壓力之 ^ 為平衡空氣供給系統8及加重空氣供給系工軋。37係作 1給源之氣壓泵,A係連接加重:二系,:?空氣 37之結合件。 孔供-1系統11和氣壓泵 在本實施例之情況,氣壓缸 塞7、活塞桿15、夾持器16 所支f牛之重量係活 以及半導體晶片振器18 '振動器 測器⑽配置於活塞桿二工16:=, 持器1 6結合。目而背重残。活塞枠1 5及夾 何重感測盗38向控制裝置4〇輸出偵測信重^。 感測器38和控制裝置4〇之結合件。°儿’、連接荷重 測器9在之控號4〇、輸 器9之輸出信號、荷重感測器心::;”1::力感測 所設定操作之設定信料各種H'在操作盤4! 狀態,控制裝置4。藉著控制設於;衡二:些信號之 力調整閥10或設於加重空氣供給 ,,=系統8之壓 將平衡室5内部之磨力抓為、"°厭、、· 壓力調整閥1 3, 内部之壓力設為^重室6 則之壓力之複數傾斜a、b、c之其重壓力定 化。在壓力調整閥10、13使用主、,傾斜之壓力變 之饲服平衡機構之稱為精密降壓闕之闕 五、發明說明(5) ί I 2 Ϊ為電子調壓閥之電磁閥。例如’精密降壓閥在構 5導門引進馬達之在電氣上動作之致動器使引導囊伸縮, =用引導囊之伸縮動作,主闊或物之其中之一 =Π閱之動作動作,藉此將間之二次側壓力(閥之 ==力)控制成目標壓力。利用了如步進馬達之在電 it致動器之精密降壓閥係未公開之新構造之閥。 操作操作盤4i之第一加重壓力操 2 第一加重壓力定值PPH4,操作盤41在第一加重疋 •M5:不第一加重壓力定值m,同時向控制裝置㈣不 操作操作盤41之第二加重壓 設 Ϊ二定= 後:操作盤41在第二加重壓力顯V 口丨W ·,肩不第一加重壓力定值PP2,同時向 :二操作者操作操作盤41之平衡壓力; 輸 ㈣後’操作盤41在平㈣力顯示部47;= 偵ί二,同時向控制裝置40輸出。荷重减測写38所 偵測之何重自控制裝置4〇輸入汉、】器38所 顯示。在利用平衡★ $徂仏$ 、盤1之何重顯示部48後 内部之壓力;室5之平衡室5 作者操作操作盤41之圖外之重設鈕時量m態,操 之荷重感測器38之偵測值之實荷重:成:盤41將係那時 顯示部48顯示零。操作者操作 動=:在荷重 SP,同時向控制裝置4〇輸出。而 重設定值 ㈣〈第-加重墨力定值_第二加重 =動定=如 五、發明說明(6) 31之固定座C例1之接合機構1 ’馬達裝在設置於設置基準 連結,螺ί碑螺桿•螺帽機構3之螺桿和馬達2之輸出軸 裝在上螺帽機構3之螺帽固定於上升座33,氣壓缸4 1 8,利用Β1〜°在裝在活塞桿1 5之夹持器1 6安裝共振11 之-端卜之無頭螺絲和螺絲孔將振動器30和共振器18 之螺桿°而’馬達2正轉時’螺桿•螺帽機構3 而,馬逵2月μ *升座33利用和該螺桿螺合之螺帽下降。 33經由螺帽上時’螺桿•螺帽機構3之螺桿反轉,上升座 右之導柱34滑接:入升座33和自固定座32立設於下方之左 持器16結合。因而"=不轉動的升降。導桿17之下端和夾 4之伸縮升降,將」姓導桿Π利用上升座33之升降和氣壓缸 本电 、夾持器1 6和設置基準31保持平行。 之無頭=備㈣9和在其兩侧利用圖外 著由自夾持器16 i ^成同軸之2個增壓器21、22,藉 壓器21 '22,在才#右向下方延設之臂部23、24支撐各增 -方之增壓器將ί振器18裝成兩端支樓。而在 後,產=定;由圖外之超音波產生器供給電力 換為機械能之如壓ί縱;之超音波振動’將輸出之電能變 和增壓器21結合之磁歪元件ΐ之能量變換器。在 大振動振幅點。動㈣之輸出端存在超音波振動之最 唓J队1 9具有和來白 頻率之一個波長之振動器30之超音波振動共振之共振 长度’増壓器21、22具有和來自振動器
第9頁 五、發明說明(7) 30之超音波振動共据 址 m系四角板形,在左右:J =之半個波長之長度, 點,在中Μ之最大及中央部具有最大振動振幅 2丄: 動振幅點具有自上下面向外側突出 角柱狀之接合作用部20。增壓 左右兩端部具有最大振動振“:;2二在 點具有自上下面向外側突屯$ Ρ 央邰之取大振動振幅 。 卜側大出之裱形之支撐部25、26。久古 撐°卩25、26收容於和臂部23、2 各支 而,藉著利用圖外之螺 =和貫穿孔27、28之間所形成: = =半導U Ϊ =臂部23、24。在接合作用部2〇形成用以 圖外之真空栗或閥等之吸引吸住系統,吸 ^ 引吸住糸統可將半導體晶片90吸在接合作用侧。制及 組裝機構5 0具備設於設置基準3 1夕γ ν a sr_ * 在XY_動部51上之組裝ι23χ1ΧθΥ2動部51和裝 办·署其淮Wβ々τ二 卜口 χγ Θ驅動部51在係和 :f基準31千灯之平面之縱橫之χ方向和γ方向移動工 作口 52,而且以該平面内之某_點為中 : :31平行之平面之内之轉動角之Θ方向轉動,;;且裝: 台52之位置控制成裝在和設置基準31平行之組 之上面之係被組裝對象之電路板92之晶片 口 定之裝載位置。 K组裂位置變成既 ΧΥ Θ驅動部51具有對於設置基準3liX方向 部54和對於設置基準31之γ方向仰角調整部冗。二二^ = 準備作業時、或更換共振器18時、或更換組裝工在作如二裝時 五 '發明說明(8) 不確定組裝工作台52之上面和接合作 保持平行度時,Χ方向仰角調:下面是否 利用人為摔作,詷敕Α疏如* 方向仰角調整部55 勹锞作,調整χγ Θ驅動部51相對於設置 X方向之仰角和χγ Θ驅動部51相土丰31之在 -^ ^52^" 之平行度。 饮0作用部20之下面 又,在接合機構1和組裝機構5〇具備 ==”有設於上升座33二=二 » 40輸出偵測到感測器觸件35之者電極^向控制裝置 驅動馬心裝置4〇停止 ^,, 上下驅動機構部之力作用於 墊片9 1和電路板側墊片93之接人 、 抓於十*姓-1 e " ^ 要口口 I5刀 又,感測器觸件3 5 议於夾持益16側、極限感測器36設於上升座 ; 感測器36係接觸式或接觸式都可。 也了 極限 圖2係在該實施例之接合作業之時序圖,在橫軸 係1合部分之晶片側墊片91和電路板側墊㈣接觸、 之時刻t〇、振動器30之振動開始時㈣、一次接 : 刻t2、-次接合終了時刻t3、二次荷重到達時刻“、二 t6,在左縱軸表示晶片侧墊片91和電路板侧墊片93接觸之 瞬間之實荷重W0(W0 = BP-PP1)、在振動開始 重W1(W1=SP)、在一次接合開始時刻“之實荷重 貫何 W2(W2 = PP1)、在二次荷重到達時刻t4〜t6之實 W3(W3 = PP2),在右縱軸表示振動開始加重設定值sp和第一 五'發明說明(9) ' ------ 加重f力定值ΡΡ1以及第二加重壓力定值ρρ2。 η私,:5施例之動作。操作者操作操作盤41,設定振動 乂:一定值SP .、平衡壓力設定值ΒΡ、第-加重壓力定 T 、f —加重壓力定值ΡΡ2、振動器30之總振動時間 人、辰動器30之一次接合時間71 (圖2it3_tl)、按照係接 ^ 刀之晶片側墊片9 1和電路板側墊片9 3之大小或材料等 物^生之自第一加重壓力定值ρρι達到第二加重壓力定值 尸以為止之壓力變化之傾斜。 Ϊ ^斜,例如如圖2所示,如相當於虛線11之傾斜a、 二;貝線L2之傾斜b、相當於二點鏈線L3之傾斜c等般, / ”、、接〇 °卩分之大小或材料之物性存在複數。因而,藉著 2 t 5在控制裝置40記憶例如上述之複數傾斜a〜c後, ’:、 操作操作盤41自那些傾斜a〜c之中選擇適合接合部 二ί 2广或材料等物性之傾斜,將該所選到之傾斜設於控 ^ °例如’在操作者選擇了傾斜a之情況,在圖2之 日、亥it3〜時刻t4之時間加重室6内部之壓 一 定值PP]鐵良结 & " _、、 為弟二加重壓力定值PP2 ;在操作者選擇了傾斜 月况在圖2之時刻13〜時刻15之時間加重室6内部之壓 1自第一加重壓力定值PP1變為第二加重壓力定值盯2 ;在 操作者,擇了傾斜C之情況,在圖2之時刻t3〜時刻t6之時 間加重至6内部之壓力自第一加重壓力定值PP1變為第二加 重壓力定值PP2。 藉著設定上述之控制條件,控制裝置4〇驅動壓力調整 閱10、13 ’將平衡室5内部之壓力設為平衡壓力設定值
第12頁 五、發明說明(10) B:: ㈣力設為第一加重麼力定值ρρι。因 位於氣ίΐ :ί= 二之上/方向中間,具體 停在上升極限位置下二^^^ 住,半導體曰ί f 合作用部2〇吸引吸 牛導姐曰日片90之晶片側墊片91朝向下側, 在組裂機構5G之㈣工作台52,電 =板92装 =上側。在此狀態,在圖外IS裝 之拍:了晶片側墊片91和電路板側塾片93 板側Γ丄:ί危;制裝置40計算晶片側藝片91和電路 的匹配般,墊片93之位置可正確 〇导體Β曰片90為基準修正電路板92之位置。 動馬達7正鐘保按操作盤41之起動钮後。控制裝置40驅 *1 ’接σ機構1之共振器18下降。因而,如圖2 =,時刻t〇,晶片側墊片9 j被壓在電路板側墊片93。 馬達2轉動使上升座33下降及晶片側塾片91和 藉 貝'片93之碰撞引起之活塞7之上升,加重室6之容 m:加重室6内部之壓力上升。巾,在時mi,自荷 拉=38向控制裝置4〇輸入實荷重wi(wi=sp)後,控制 ^ a不振動器3〇開始振動。因而,振動器3〇產生超音 ,共振器18和該超音波振動共振,該共振引起之超 二/ &動自接合作用部2〇經由半導體晶片9〇作用於晶片側 和電路板侧塾片93之接觸部分,利用晶片側墊片91 五、發明說明(11) ' 和電路板侧墊片9 3之超音波振動開始接合。 % 進一步,藉著馬達2轉動使上升座33下降及晶片側墊 片9 1和電路板側墊片9 3之碰撞引起之活塞7之上升,加重 ^ 6之容積縮小,加重室6内部之壓力上升在時刻^,自 何重感測38向控制裝置4〇輸入實荷重W2後,控制裝置4〇 控制使壓力調整閥13之引導閥動作之如步進馬達之電氣致 動器。因而,加重室6之壓力保持在第一加重壓力定值 PP1 ’在自時刻t2至時刻t3為止之間,半導體晶片9〇利用 係第-加重壓力定值PP1和和第二加重壓力定值pp2之差壓 之加重將半導體晶片9〇壓在電路板μ。 —在上述控制條件之設定,若操作者選擇傾斜b後設 =地將在時刻t3以後之半導體晶片9〇被壓在電路板92之加 二制成著圖2之實線L2之壓力變化。因而,在時刻 U制裝置40控制壓力調整閥13之電氣致動器。該控制 ^據加重室6之壓力按照實線L2自第-加重壓力定值PP1 二—二加重壓力定值PP2上升之加壓曲線之壓力控制。利 Γ Ϊ 1測器38偵測該壓力變化。然後,在自時刻tl開始 二3^間到達總接合時間T時’晶片側塾片91和電路板 動哭之利用超音波振動之接合完了,控制裝置40向振 停止振動,而且將馬達2自正轉驅動切換為反 ,接合機構1之共振器18上升,而且停止超 骨波振動。 ,共振器18到達上升極限位置後,控制裝置40停 反轉。控制裝置40和該共振器丨8之開始上升或共
五、發明說明(12) 振器1 8之開始上升或共振器18往上升極限位置之到達並行 的控制壓力調整閥1 3之電氣致動器。該控制係加重室6之 C力^到達了實線L2上之總接合時間τ之壓力向第一加重 壓力定值ΡΡ1下降之壓力控制。因而一個半導體晶片9〇 對電=板92之組裝製程完成一個循環。 — 似之若依據本實施例,藉著操作者在控制裝置4 〇設 定振動開始加重設定值SP、第一加重壓力定值PP1、第二 加重壓力定值PP2 '平衡壓力設定值Bp、一次接合時間 T1、總接合時間τ以及自複數傾斜a〜c之中按照接合部分之 大小或材料等物性所選擇之傾斜等控制條件,控制裝置40 f制係接合作業之加重控制機構部之氣壓缸4之加重室6内 $之壓力及構成接合作業之上下驅動機構部之一部分之馬 之正反轉,係第一構件之電路板92和係第二構件之 f體晶片90在自振動開始加重設定值sp經由第一加重壓力 定值PP1往第二加重壓力定值PP2之逐漸上升之加重下邊接 受超音波振動邊接合。 該振動開始加重設定值SP、第一加重壓力定值ρρι、 一加重壓力定值PP2、平衡壓力設定值肿、一次接人時 間τι以及總接合時間T(T>T1)等控制條件使用 ς人
St:”:塾片91和電路板側塾片…小或材I 例如,*第一構件和第二構件之接合部分 見或硬之情況,將第二加重壓力定值ΡΡ2設為比較高的 ΐ第而ii;構件和第二構件之接合部分窄或軟之情況, 將第二加重壓力定值PP2設為比較低的值。因而,若依據
五、發明說明(13) 1 本^實^施例’可依據接合部分之大小或材料等物性對加重室 3設^定在接合時所需之加壓力’可得到利用超音波振動之至 適f之接合’不會發生接合部分之過度壓垮或接合部分剝 離專。
曰又’若依據本實施例’因接合機構1具備由馬達2和螺 f ·螺帽機構3構成之接合作業之上下驅動機構部及由氣、 疋缸4構成之接合作業之加重控制機構部,上下驅動機構 f力不作用於在接合時之接合部分,只有在加重控制機構 部之加壓力作用於在接合時之接合部分。即,馬達2正 轉’接合機構1之共振器1 8下降,將晶片側墊片9 1壓在電 路板側墊片93之情況,活塞7上升。因而,利用馬達2下降 之力被活塞7之上升吸收而未作用於接合部分,只有相當 於加重室6之壓力之加壓力作用於接合部分。因而,提高 馬達2之轉速而提高共振器18之下降速度,急速升高之衝 擊力也不會作用於接合部分,可消除半導體晶片9〇 板92裂開之不良。
^ 加重室6之容積因該活塞7之上升而縮小,也藉著壓力 5周整間13之麗力調整,將加重室6内部之壓力保持在第一 加重壓力定值pPl。因而,在總接合時間T之期間,控制裝 置40 ^止馬達2正轉’加重室6之功力也和加重室6之容積 成比例的保持第一加重壓力定值PP1及自第一加重壓力定 住弟二加重壓力定值PP2之所選擇之傾斜,對接合盔 不良影響。 … 又’若依據本實施例,因具備由感測器觸件35和極限
第16頁
五、發明說明(14) ^測器3 6構成之異常停止裝 前’強迫停止馬達2之正轉 作用於接合部分。 置’在活塞7變成上升極限之 馬達2所引起之下降之力不會 位詈之^ I I例,在接合機構1之共振器1 8停在上升極限 片9 〇,作:t ::起始狀態,共振器1 8吸引吸住半導體晶 竹田却^疋右在電路板92上重疊放置半導體晶片90,接合 乍用口 P 20利用共振器18之 丰導 q9 u k… 心卜降將牛冷體晶片90壓在電路板 ,/、振Is 1 8變成除去了吸引孔部之簡單之構造。 件ΐ t,實施例’自操作盤41在控制裝置4〇設定控制條 接合部分之大小或材料之福數押舍丨你 《隐按…' 叶乏複數控制條件後,按照今後接合 邛为之大小或材料自該所記憶之複數控制條件之中 設定,接合作業就變得簡單。 、擇後 在上述實施例,在活塞桿1 5和夾持器丨6之 1測器38,但是在組裝工作台52設置相當於該荷;感‘器 38之在圖1以二點鏈線表示之荷重感測器53,二、 :器38也可。☆此情況’若設置於荷重感測器何、 18之接合作用部20對應之位置,可偵測更正確 ^振15 又,因如上述實施例般在只是令夾持器i 6支 A何重。 <1 塞桿15、導桿17、共振器18、振動器3〇以及半=塞7曰、活 等之狀態荷重感測器53無法偵測氣壓缸4所支導體_晶片90 重量,用計算求活塞7、活塞桿15、導桿17、2之疋件之 振動器30以及半導體晶片90等之總重量,气共振器18、 室5及加重室6向大氣開放,至少驅動焉邊:人希望將平衡 $運2令失持器16下
4?^ Φ 五、發明說明(15) 降’需要藉著接合作用部20或接合作用部20所吸住之半導 體晶片90接觸組裝工作台52,用荷重感測器53偵測氣壓缸 4所支撐之元件之重量。 圖式簡單說明 圖1係表示本發明之實施例之超音波振動接合裝置之 構造圖。 圖2係在該實施例之接合作業之時序圖。 符號說明 1接合機構 2
馬達(上下驅動機構部) :^ ·螺帽機構(上下驅動機構部) 氣壓缸(加重控制機構部) 平衡空氣供給系統 加重空氣供給系統 控制裝置
第18頁

Claims (1)

  1. 振器和植?接合袭置,用由接合機構支p ί;Γ”4,自和共振器結合之=二壓保持 波振動,利用超 门,、振益傳達超音 其特徵在於複數重疊之構件接合, 之加接合作業之上下驅動機構部和接合作業 中接2合圍之:音波振動接合裝置,其 夹持器連結之螺桿·螺帽轴以Μ支撐共振器之 中力:重ί:::::範圍第1項之超音波振動接合裝置,其 利:接合機構部之輸出輛及和支撲共振 幵姦逑、纟0之軋壓缸形成。 由心舌^申"月專利範圍第3項之超音波振動接合裝置,其 中加重控制機構部包括: 衣置^ 力£供給系統,供給在氣壓缸之内部隔成之平衡室和 加重室加壓空氣;及 执—°又定裝置’依據和加重控制機構部連結之元件之重量 *又疋自加壓供給系統供給平衡室之加壓空氣之壓力,而且 依據接合之構件之大小或材料設定自加壓供給系統供給加 重室之加壓空氣之壓力。 ^ 5.如申請專利範圍第1項之超音波振動接合裝置其 中荷重感測器設於支撐共振器侧。
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