CN101084607A - 弹性作用的球栅阵列触头 - Google Patents

弹性作用的球栅阵列触头 Download PDF

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CN101084607A
CN101084607A CNA2005800441107A CN200580044110A CN101084607A CN 101084607 A CN101084607 A CN 101084607A CN A2005800441107 A CNA2005800441107 A CN A2005800441107A CN 200580044110 A CN200580044110 A CN 200580044110A CN 101084607 A CN101084607 A CN 101084607A
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electrical contact
contact
substrate
connector
soldered ball
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H·恩戈
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FCI SA
FCI Americas Technology LLC
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0256Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for soldering or welding connectors to a printed circuit board
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50Fixed connections
    • H01R12/51Fixed connections for rigid printed circuits or like structures
    • H01R12/55Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/514Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/341Surface mounted components
    • H05K3/3421Leaded components
    • H05K3/3426Leaded components characterised by the leads
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/03Conductive materials
    • H05K2201/0302Properties and characteristics in general
    • H05K2201/0311Metallic part with specific elastic properties, e.g. bent piece of metal as electrical contact
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007Types of components
    • H05K2201/10189Non-printed connector
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10954Other details of electrical connections
    • H05K2201/10984Component carrying a connection agent, e.g. solder, adhesive
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/04Soldering or other types of metallurgic bonding
    • H05K2203/041Solder preforms in the shape of solder balls
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

公开了一种用于球栅阵列连接器(100)的电触头(210),以便提供焊球与基板(270)的改进的连接。触头可被压缩(320),使得连接器的焊球(255)在回流处理(330)之前与基板(270)抵触。在回流处理(330)的过程中,可通过触头(210)释放压缩(320),其中所述触头进一步延伸进入焊球(255)中,同时将触头(210)返回至未受压的状态。

Description

弹性作用的球栅阵列触头
技术领域
本发明大体涉及电连接器。更具体地讲,本发明涉及用于促进与基板电连接的弹性作用的球栅阵列触头。
背景技术
球栅阵列(BGA)连接器的每个触头可具有固定至其端部的焊球。焊球可位于连接器壳体的正下方,并且形成球栅。BGA连接器可安装在电路基板上,例如印刷线路板,这是通过将BGA与基板表面上的诸如焊垫的电触点的对应阵列对正而实现的。焊球可被回流处理,以在每个连接器触头与对应的电触点之间形成钎焊接头。
然而,焊球的形状、尺寸并不一致,或者在触头上的位置也不一致。BGA连接器缺少一致性可防止某些焊球在回流处理的过程中强硬地抵触基板。
因而,需要一种BGA连接器,以及使得连接器与基板一致地相连的回流处理方法。
发明内容
本发明提供了一种BGA触头以及回流处理方法,其可使得连接器的焊球抵触并与基板电连接。本发明提供了一种BGA触头,其包括用于延伸进入焊球中的尾端;中间部,通过其,触头保持在连接器壳体中;以及位于尾端与中间部之间的弹性梁。在力沿与触头平行且朝向中间部的方向施加在触头的尾端上时,弹性梁可压缩。在这种方式中,在连接器安置在基板上之后但是在回流处理开始之前,力可施加在连接器上。力将压缩(即,暂时缩短)正抵触基板的触头,同时允许最初不接触基板的其它焊球抵触基板。随着力施加至连接器,触头可被压缩,直至最短的焊球抵触基板。
本发明还提供了将BGA连接器连接至基板的方法。该方法可包括将连接器安放在基板上,并将力施加在连接器上,直至每个焊球抵触基板。在回流处理的过程中,焊球软化,并且施加力的过程中受压的触头可松弛。
附图说明
图1示出了根据本发明的连接器插座的实施例;
图2示出了根据本发明的连接器插接条与触头的第一实施例;
图3是保持在相应的连接器插接条中并通过BGA阵列中的开口伸出的触头的两个实施例的剖切侧视图;
图4示出了根据本发明连接器插接条与触头的第二实施例;
图5是保持在相应的连接器插接条中并通过BGA阵列中的开口伸出的触头的两个实施例的剖切侧视图;
图6示出了根据本发明、用于将连接器电连接至基板的方法的实施例。
具体实施方式
图1示出了根据本发明的插座连接器100的实施例。插座连接器100可包括上侧壳体102与下侧壳体104。上侧壳体102可容纳触头110的插座端部112。上侧壳体102可具有触头接收开口111,其用于接收可插入相应的插座部112中的互补触头(未示出)。
例如,下侧壳体104可通过任何合适的方法连接至上侧壳体102,例如借助于互锁机构。下侧壳体104可容纳触头110的尾端150和弹性梁140。下侧壳体104可包括BGA座106。BGA座106可包括开口108,而每个开口108对应于触头110的相应的尾端150。尾端150可通过开口108伸出或局部伸出。例如,上侧壳体102、下侧壳体104与BGA座106可由塑料构成。
每个触头110可通过连接器插接条160保持在连接器插座100内。连接器插接条160在触头110的中间部113处保持触头110。例如,连接器插接条160可由塑料制成。每个触头的中间部113可被模制为连接器插接条160的一部分,或者以其它的方式可插入连接器插接条160中,从而防止触头110在连接器插座100内移动。连接器插接条160可借助于互锁结构161或通过任何合适的方法而固定至上侧壳体104。
图2和3示出了根据本发明连接器插接条与触头的第一实施例。图2示出了连接器插接条160与触头110的实施例。图3示出了两个触头110的实施例的剖切侧视图,其中所述触头保持在相应的连接器插接条160中,并且通过BGA座106中的开口108伸出。触头110可包括触头接收部112、中间部113、双弹性梁140与尾端150。触头110可被用于差分或单端信号传输。焊球155可通过任何合适的方法连接至尾端150,例如通过加热焊球155以软化其,将球155附着在尾端150上并且使得球155冷却和硬化。
每个触头110可包括位于中间部113与尾端150之间的双弹性梁140。可通过将触头弯曲成两个相对的“C”形状或弧形而形成双弹性梁140,从而每个双弹性梁140形成通过触头110的大致椭圆形的开口。本领域技术人员将清楚,其它形状可被用于形成双弹性梁140,并且图2和3所示的双弹性梁140仅仅是一个实施例。触头110可由导电片材被模压或以其它方式被形成。
双弹性梁140可被形成或构造为,在压力沿触头的纵向轴线(也就是,沿箭头153所示的方向)施加时,双弹性梁140可用作为牵引弹簧,同时允许力朝向连接器插接条160压缩触头110。在连接器100沿与由箭头153所示方向相反的方向被压在基板上时,形成这种压力。随着连接器100被压在基板上,具有抵触基板的球的每个触头110可沿其纵向轴线压缩、也就是缩短,从而其它较短的触头110的其它球可抵触基板。因为每个触头110通过连接器插接条160稳固地保持在连接器100中,所以每个触头110的弹性梁140可吸收或补偿压力,而每个触头的插座部112仍显著未受力改变。直至每个球155抵触基板上的相应的电触点之前,可施加压力。
BGA座106的每个开口108可包括缩窄的壁108a,从而开口在BGA座106的基板侧106a处比在连接器插接条侧106b处大。在焊球155安置在触头110的尾端150上时,其位置可设置成,其并不穿入开口108中,或者其局部穿入开口108中。附加地,开口108可稍微大于座106的基板侧106a上的球155。在这种方式中,在开口108的侧壁108a与球155之间可形成间隙107。该间隙107用作为两个目的。首先,在球155被钎焊至基板时,可施加压力,并且可推压球155进入开口108中。缩窄的侧壁108a与间隙107组合可允许球155沿箭头153的方向被推压,而并不压靠着BGA座106。其次,间隙107可在连接器100连接至基板后提供灵活性。随着连接器100和其所连接的基板围绕另一连接器移动、连接至另一连接器、安置在一部件中,这种灵活性可允许触头110在连接器100中横向移动。间隙107可允许每个触头110移动,这可有助于减轻形成在每个球155与基板上其相应电触点之间的接头上的应力。这种应力释放可有助于维持连接器100与基板之间的导电性。
图4和5示出了根据本发明的连接器插接条与触头的第二实施例。图4示出了连接器插接条260与触头210的实施例。图5是两个触头210的实施例的剖切侧视图,其中所述触头保持在相应的连接器条带260中,并且通过BGA座206中的开口208伸出。
触头210可包括触头接收部212、中间部213、单弹性梁240以及尾端250。触头210可用于差分或单端信号传输。焊球255可通过以下方式连接至尾端250,例如,加热焊球255以软化其,将球255附着在尾端250上,并使得球255冷却和硬化。
每个触头210可包括位于中间部231与尾端250之间的单弹性梁240。通过将触头弯曲成“C”形状或弧形而形成单弹性梁240。本领域技术人员将清楚,可使用其它形状,以形成从触头的中心线c偏离的单弹性梁240。触头210可由导电片材被模压或以其它方式被形成。
单弹性梁240可被形成或构造为,在压力沿触头的纵向轴线(也就是,沿由箭头253所示的方向)施加时,单弹性梁240可允许力朝向连接器插接条260压缩触头210。在连接器沿与由箭头253所示方向相反的方向被压在基板上时,可产生这种压力。随着连接器压在基板上,具有抵触基板的球的每个触头210可压缩、也就是缩短,从而其它较短的触头210的其它球可抵触基板。因为每个触头210通过连接器插接条260被稳固地保持,所以弹性梁240可吸收或补偿压力,而每个触头的插座部212仍显著未受力改变。直至每个球255抵触基板上相应的电触点之前,可施加所述力。BGA座206的每个开口208可包括缩窄的侧壁208a,从而开口208在座206的基板侧206a处比在连接器插接条侧206b处大。在焊球255安置在触头210的尾端250上时,其位置可设置成,其并不穿入开口208中,或者其局部穿入开口208中。附加地,开口208可稍微大于座206的基板侧206a上的焊球255。在这种方式中,可在开口208的各侧壁208a与球255之间形成间隙207。该间隙207可用于针对图3的间隙107所述的目的。
图6示出了根据本发明一个实施例用于将连接器100电连接至基板170的示例方法300。方法300相对于触头110与双弹性梁140被说明,但是可应用于触头210或单弹性梁240,或者可应用于本发明可选实施例中的任何其它触头结构。
图6示出了下侧壳体104与锁定机构161附近的连接器100的端视图,其中所述锁定机构参看图1所示将连接器插接条160物理连接至上侧壳体102。在方法300的三个步骤310、320和330中,示出了三个焊球。
方法300以步骤310开始,即将连接器100安放在可以是PCB的基板170上。焊球155a可抵触基板170,而其它两个焊球155b、155c并不接触基板170。可在相应的焊球155b、155c与基板170之间形成间隙G2、G1,这是因为例如焊球155b、155c优选可不是球形的、可稍微小于焊球155a,或者可比焊球155a安置得更靠近相应的开口108或更加进入相应的开口108。附加地,可形成间隙G2、G1,这是因为基板170并非平的或平坦的。
在步骤320,在连接器100上可施加沿箭头353方向的力,同时将连接器100压在基板170上。沿箭头353方向的力可在抵触基板170的触头110上产生与箭头353相反方向的压力。例如,因为在力被施加之前球155a抵触基板170,所以在力被施加时,沿与箭头353相反方向的对应压力可压缩球155a所安置在其上的触头110。触头110的双弹性梁140可使得触头110压缩。也就是说,触头110可被压缩,这是因为双弹性梁140可弯曲,从而双弹性梁140中的大致椭圆形状可变成更加圆形,并且双弹性梁140中的相应的“G”形状可变得更加明显。随着对应于球155a的触头110被压缩,焊球155b、155c可与基板170接触,如步骤320所示。如果其它焊球155(未示出)在焊球155a、155b、155c抵触基板170时并不抵触基板170,则压力将继续被施加,直至所有焊球155抵触。
在步骤330,回流处理可开始,并且被完成,同时将每个焊球155电和物理连接至基板170的相应的电连接点。在回流处理的过程中,从基板至连接器上的基准点(例如,BGA座106的连接器插接条侧106b)的距离d优选保持恒定。在这种方式中,随着焊球155在回流处理的过程中软化,受压的触头110可随着每个受压的触头110的尾端150沿朝向基板170的方向移动而解压。尾端150可继续朝向基板170移动,直至触头110返回至松弛、未受压的状态。例如,触头110可被推入焊球155a中,从而在回流处理完成并且焊球155a硬化时,延伸进入焊球155a中的触头110可处于松弛、未受压的状态。在这种方式中,在回流处理之前,双弹性梁140在触头110中提供灵活性,以允许连接器100稳固地压靠着基板170,同时使得所有焊球155抵触基板170。在回流处理的过程中,焊球155的软化可允许任何受压的触头110进一步朝向基板170延伸,同时减轻压缩,并且允许触头返回至松弛状态。
图7示出了根据本发明实施例、示例方法300应用至单个触头110。触头110包括双弹性梁140,其大体形状为椭圆形。在步骤310,诸如连接器100的连接器可安置在基板170上,并且触头110可抵触基板170。触头110可具有尾端150,其初始插入焊球155中距离D。在连接器100安置在基板上时,连接器的其它触头(未示出)可不抵触基板170。尾端150可限定为尖锐或其它小面积的形状。
在步骤320,沿箭头353方向的力可施加在连接器100上,同时将连接器100压在基板170上。沿箭头353方向的力可在抵触基板170的触头110上产生沿与箭头353相反方向的压力。该力可压缩触头110的双弹性梁140,并且可弯曲双弹性梁140,从而大体椭圆形状可变得更加圆形,并且双弹性梁140中的相应的“C”形状可变得更加明显。该力可压缩触头110,从而其比在其原始未受压的状态中缩短距离G。随着触头110被压缩,连接器100中的、最初并未抵触基板170的其它触头的焊球(未示出)可与基板170接触。
在步骤330,回流处理可开始,并且被完成,同时将连接器100的触头110和其它触头的焊球155电和物理连接至基板170的相应的电连接点。焊球155可在回流处理的过程中软化,同时随着触头110的尾端150沿朝向基板170的方向延伸而允许受压的触头110解压,直至触头110返回至其松弛、未受压的状态。在回流处理结束时,触头110的尾端150可延伸进入焊球155中距离DF,其大于回流处理之前的距离D。在这种方式中,触头110在回流处理后返回至其松弛状态时,仍为距离G,其短于在其原始状态中的情况。
图8示出了根据本发明实施例、示例方法300应用至单触头210。触头210可包括形状大致为“C”或弧形的单弹性梁240。在步骤310,诸如连接器100的连接器可安置在基板270上,并且触头210可抵触基板270。触头210的尾端250可插入焊球255中距离D。在连接器100安置在基板上时,连接器100的其它触头(未示出)可不抵触基板270。
在步骤320,沿箭头353方向的力可施加在连接器100上,同时将连接器100压在基板270上。沿箭头353方向的力可在抵触基板270的触头210上产生沿与箭头353相反方向的压力。该力可压缩触头210的单弹性梁240,并且可弯曲单弹性梁240,从而“C”或弧形形状可更加明显。该力可压缩触头210,从而其比其原始未受压状态的情况缩短距离G。随着触头210被压缩,最初并不抵触基板270的、连接器100中的其它触头的焊球(未示出)可与基板270接触。
在步骤330,回流处理可开始,并且被完成,同时将连接器100的触头210和其它触头的焊球255电和物理连接至基板270的相应的电连接点。焊球255在回流处理的过程中可软化,同时随着触头210的尾端250沿朝向基板270的方向延伸而允许受压的触头210解压,直至触头210返回至松弛、未受压的状态。在回流处理结束时,触头210的尾端250可延伸进入焊球255中距离DF,其大于回流处理之前的距离D。在这种方式中,触头210在回流处理之后返回至其松弛状态时,仍为距离G,其短于在其原始状态中的情况。
因而,已经说明了适于BGA连接器的改进的触头结构与方法。应该理解的是,前述示意性实施例仅仅出于说明的目的被提出,并且决不应被认为限制了本发明。例如,已经说明了弹性梁140、240的两个实施例。本领域技术人员将清楚,根据本发明的可选实施例可采用在回流处理之前有助于压缩并提供弹性以回弹的任何触头形状。在焊球在触头上的第一回流处理过程中,触头尾端可附着至焊球的外侧表面,并且然后在连接器第二回流处理至基板的过程中,刺穿液化的焊球。在此所用的词汇是说明和示意的词汇,而不是限制性词汇。此外,尽管已经在此参照特定的结构、材料和/或实施例说明了本发明,但是本发明将不限于在此所公开的特定内容。更确切地,本发明扩展至符合权利要求书范围内的所有功能等同的结构、方法和用法。从说明书启示获益的本领域技术人员可完成本发明的多种改型,并且在不同脱离本发明范围和精神的前提下可完成改变。

Claims (20)

1.一种电触头,其包括:
连接至焊球的尾端;以及
弹性梁,其具有邻近所述尾端的第一长度;在压力沿与所述触头平行的方向施加至所述触头时,所述弹性梁压缩至第二长度,所述第二长度短于所述第一长度。
2.根据权利要求1所述的电触头,其特征在于,还包括:
中间部,所述触头通过所述中间部保持在连接器中,所述弹性梁位于所述尾端与所述中间部之间。
3.根据权利要求1所述的电触头,其特征在于,在所述压力去除时,所述弹性梁返回至所述第一长度。
4.根据权利要求1所述的电触头,其特征在于,所述弹性梁包括双弹性梁。
5.根据权利要求1所述的电触头,其特征在于,在所述焊球被加热时,所述尾端沿朝向基板的方向延伸。
6.根据权利要求1所述的电触头,其特征在于,所述尾端限定了尖锐的边缘。
7.根据权利要求1所述的电触头,其特征在于,还包括:
插座部,其具有一定的长度,所述插座部位于与所述尾端相反的触头端部处,在所述压力施加至所述触头时,所述插座部的长度保持不变。
8.根据权利要求1所述的电触头,其特征在于,还包括:
连接器壳体,其中所述电触头接收在所述连接器壳体中;以及
插座部,其具有相对于所述连接器壳体的位置,在所述压力被施加时,所述插座部相对于所述连接器壳体的位置保持不变。
9.一种电连接器,其包括:
壳体;以及
接收在所述壳体中的电触头,其中所述电触头包含:
连接至焊球的尾端,所述尾端限定了尖锐的边缘,以及
弹性梁,其中所述弹性梁具有第一长度,在压力沿与所述电触头平行的方向施加在所述电连接器上时,所述弹性梁压缩至第二长度,所述第二长度短于所述第一长度。
10.根据权利要求9所述的电连接器,其特征在于,在所述压力被去除时,所述弹性梁返回至所述第一长度。
11.根据权利要求9所述的电连接器,其特征在于,所述弹性梁是单弹性梁。
12.根据权利要求9所述的电连接器,其特征在于,所述弹性梁是双弹性梁。
13.根据权利要求9所述的电连接器,其特征在于,所述尾端插入所述焊球中。
14.根据权利要求9所述的电连接器,其特征在于,还包括
BGA座,其包含:
BGA座壳体侧,其背离所述焊球;
BGA座基板侧,其面向所述焊球;以及
缩窄的开口,其包含侧壁,所述缩窄的开口从所述BGA座壳体侧延伸通过所述BGA座到达所述BGA座基板侧,所述缩窄的开口在所述BGA座基板侧上比在所述BGA座壳体侧上大。
15.根据权利要求14所述的电连接器,其特征在于,所述电触头至少局部延伸通过所述缩窄的开口,并且
在所述开口的各侧壁与所述焊球之间形成间隙。
16.一种用于将BGA连接器的第一焊球和第二焊球电连接至基板的方法,其中所述第一焊球和第二焊球位于所述BGA连接器的相应的第一电触头和第二电触头上,所述BGA连接器包括壳体,所述方法包括以下步骤:
将所述连接器安放在所述基板上,以使得所述第一焊球抵触所述基板,并且在所述第二焊球与所述基板之间形成间隙;
沿与所述电触头平行且朝向所述基板的方向将压力施加在所述连接器上,所述第一电触头被压缩,而所述第二焊球抵触所述基板;并且
回流处理所述第一焊球和第二焊球,其中在所述回流处理之后,所述第一电触头因回流处理而进一步延伸进入所述第一焊球 中。
17.根据权利要求16所述的方法,其特征在于,在所述回流处理过程中,所述第一焊球与所述第二焊球抵触所述基板时的所述连接器壳体与所述基板之间的距离保持恒定。
18.根据权利要求16所述的方法,其特征在于,还包括回流处理所述焊球,至少直至所述第一电触头处于未受压的状态。
19.根据权利要求16所述的方法,其特征在于,所述第一电触头与所述第二电触头中的至少一个电触头包括弹性梁。
20.根据权利要求16所述的方法,其特征在于,所述第一电触头与所述第二电触头中的至少一个电触头包括插座部,其具有相对于所述连接器壳体的位置,并且在所述回流处理之后,所述插座部相对于所述连接器壳体的位置保持不变。
CNA2005800441107A 2004-12-23 2005-11-02 弹性作用的球栅阵列触头 Pending CN101084607A (zh)

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US7226296B2 (en) 2007-06-05
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TWI286403B (en) 2007-09-01
US20060141818A1 (en) 2006-06-29

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