CN101685785B - 窗型压板 - Google Patents

窗型压板 Download PDF

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CN101685785B
CN101685785B CN2009101489565A CN200910148956A CN101685785B CN 101685785 B CN101685785 B CN 101685785B CN 2009101489565 A CN2009101489565 A CN 2009101489565A CN 200910148956 A CN200910148956 A CN 200910148956A CN 101685785 B CN101685785 B CN 101685785B
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金仁镐
柳熙锡
金大根
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Advanced Semiconductor Engineering Inc
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Abstract

本发明关于一种打线机台的固定治具及其窗型压板。该窗型压板用以压合一承载板的上表面,其包括一压板本体、至少一窗孔及至少一缓冲装置。该窗孔贯穿该压板本体,用以显露该承载板的部分上表面。该缓冲装置位于该窗孔之外,包括一顶抵端,当该窗型压板压合该承载板的上表面时,该顶抵端顶抵该承载板的上表面,当该窗型压板向上提升时,该顶抵端向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。藉此,可以避免该承载板翘曲的情况,进而提升良率。

Description

窗型压板
技术领域
本发明关于一种固定治具及其压板,详言之,关于一种打线机台的固定治具及其窗型压板。 
背景技术
参考图1,显示已知打线机台的固定治具1的分解示意图。该固定治具1用以固定一承载板21以利打线工艺,该承载板21包括一上表面211及一下表面212,数个芯片22黏附于该承载板21。该固定治具1包括一热板11、二轨道12及一窗型压板13。该热板11包括一吸附面111,用以支撑该承载板21的下表面212且提供热能至该承载板21。这些轨道12位于该热板11的二侧,以支撑该承载板21的二侧。该窗型压板13用以压合该承载板21的上表面211,其包括一压板本体131、至少一窗孔132及数个压条133。该窗孔132贯穿该压板本体131,用以显露该承载板21的部分上表面211。部分这些压条133位于该窗孔132内,且互相交错而定义出数个开口134。这些压条133更包括数个条侧压条1331,这些侧压条1331位于该窗型压板13背面的两侧(如图2所示)。 
参考图3,显示已知打线机台的固定治具的应用俯视示意图。在半导体工艺的一打线工艺中,首先,该承载板21被置于这些轨道12上,且该热板11的吸附面111支撑该承载板21的下表面212且提供热能至该承载板21。接着,该窗型压板13向下压合于该承载板21,其中每一这些开口134对应每一这些芯片22,而后进行打线。完成打线后,该窗型压板13向上提升,以利该承载板21依循运送方向前进,使尚未打线的芯片22前进至一预定位置。之后,该窗型压板13再向下压合该承载板21,以进行下一次打线作业。 
然而以已知打线机台的固定治具1进行打线的缺点如下。当该窗型压板13向上提升时,该承载板21因和该窗型压板13间的表面张力而向上翘曲(如图4所示),而不利后续工艺。已知解决方法增加该窗型压板13向下压合的压力,藉此使已翘曲的承载板21被压平。然而该已知解决方法产生另一缺点,由于这些侧压条1331会压到 这些轨道12与该热板11间的部分该承载板21,因此当该窗型压板13增加向下压合的压力时,这些侧压条1331会将部分该承载板21压入这些轨道12与该热板11间之间隙,而在该承载板21上产生压痕,且使该承载板21产生翘曲(如图5所示)。如此,在接续的灌模(Molding)工艺中,液态的封胶材料会经由该压痕而溢出,导致封装失败。 
因此,有必要提供一种创新且具进步性的打线机台的固定治具及其窗型压板,以解决上述问题。 
发明内容
本发明提供一种打线机台的固定治具,用以固定一承载板以利打线工艺,该承载板包括一上表面及一下表面,数个芯片黏附于该承载板,该固定治具包括一热板及一窗型压板。该热板包括一吸附面,用以支撑该承载板的下表面且提供热能至该承载板。该窗型压板用以压合该承载板的上表面,包括一压板本体、至少一窗孔及至少一缓冲装置。该窗孔贯穿该压板本体,用以显露该承载板的部分上表面。该缓冲装置位于该窗孔之外,其包括一顶抵端,当该窗型压板压合该承载板的上表面时,该顶抵端顶抵该承载板的上表面,当该窗型压板向上提升时,该顶抵端向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。藉此,不需如已知技术增加向下压合的压力,如此可避免承载板翘曲的情况,进而提升良率。 
在一较佳实施例中,该缓冲装置包括一弹性体及一顶抵块,该弹性体包括一固定端及一自由端,该固定端固设于该压板本体,该顶抵块的一端连接该弹性体的自由端,另一端为该顶抵端。 
在一较佳实施例中,该缓冲装置为一弹性片体,该弹性片体的一端为一固定端,固设于该压板本体,另一端为该顶抵端,该弹性片体与该压板本体具有一角度。 
在一较佳实施例中,该缓冲装置为一弹性缓冲层,其具有一上表面及一下表面,该上表面为一固定端,附着于该压板本体,该下表面为该顶抵端。 
在一较佳实施例中,该缓冲装置为一活动块体,该活动块体包括一支撑部及一顶抵部,该支撑部位于该容置空间内,该支撑部的面积大于该顶抵开口的面积,以防止该支撑部掉出该容置空间,该顶抵部的下端为该顶抵端,该顶抵部的面积小于该顶抵开口的面积,使得该顶抵部可以于该顶抵开口内移动。 
附图说明
图1显示已知打线机台的固定治具的分解示意图; 
图2显示已知窗型压板的背面的透视示意图; 
图3显示已知打线机台的固定治具的应用俯视示意图; 
图4显示沿着图3的线4-4的剖面示意图; 
图5显示已知窗型压板压合承载板的剖面示意图; 
图6显示本发明打线机台的固定治具的第一实施例的分解示意图; 
图7显示本发明窗型压板的第一实施例的背面的透视示意图; 
图8显示图7的局部放大图; 
图9显示本发明打线机台的固定治具的第一实施例的应用俯视示意图; 
图10显示沿着图9的线10-10的剖面示意图; 
图11显示本发明打线机台的固定治具的第一实施例的窗型压板向上提升的剖面示意图; 
图12显示本发明打线机台的固定治具的第二实施例的窗型压板压合承载板的示意图; 
图13显示本发明打线机台的固定治具的第二实施例的窗型压板向上提升的示意图; 
图14显示本发明打线机台的固定治具的第三实施例的窗型压板压合承载板的示意图; 
图15显示本发明打线机台的固定治具的第三实施例的窗型压板向上提升的示意图; 
图16显示本发明打线机台的固定治具的第四实施例的窗型压板压合承载板的示意图;及 
图17显示本发明打线机台的固定治具的第四实施例的窗型压板向上提升的示意图。 
主要组件符号说明: 
1     已知打线机台的固定治具 
3A    本发明打线机台的固定治具的第一实施例 
3B    本发明打线机台的固定治具的第二实施例 
3C    本发明打线机台的固定治具的第三实施例 
3D    本发明打线机台的固定治具的第四实施例 
4     热板 
5     本发明窗型压板的第一实施例 
6     轨道 
7     本发明窗型压板的第二实施例 
8     本发明窗型压板的第三实施例 
9     本发明窗型压板的第四实施例 
11    热板 
12    轨道 
13    窗型压板 
21    承载板 
22    芯片 
23    承载板 
24    芯片 
41    吸附面 
51    压板本体 
52    窗孔 
53    压条 
54    开口 
55    弹性体 
56    顶抵块 
57    缓冲装置 
71    压板本体 
75    弹性缓冲层 
77    缓冲装置 
81    压板本体 
85    弹性片体 
87    缓冲装置 
91    压板本体 
95    活动块体 
97    缓冲装置 
111   吸附面 
131    压板本体 
132    窗孔 
133    压条 
134    开口 
211    上表面 
212    下表面 
231    上表面 
232    下表面 
511    凹槽 
531    侧压条 
551    固定端 
552    自由端 
561    顶抵端 
751    固定端 
752    顶抵端 
851    固定端 
852    顶抵端 
911    容置空间 
912    顶抵开口 
951    支撑部 
952    顶抵部 
953    顶抵端 
1331   侧压条 
具体实施方式
参考图6,显示本发明打线机台的固定治具3A的第一实施例的分解示意图。该固定治具3A用以固定一承载板23以利打线工艺,该承载板23包括一上表面231及一下表面232,数个芯片24黏附于该承载板23。在本实施例中,该承载板23可为一基板条(Substrate Strip)或一导线架(Leadframe),这些芯片24黏附于该承载板23的上表面231。该固定治具3A包括一热板4及一窗型压板5。在本实施例中,该固定治具3A更包括二条轨道6,这些轨道6位于该热板4的二侧,以支撑该承载板23的二侧。该 热板4包括一吸附面41,用以支撑该承载板23的下表面232且提供热能至该承载板23。在其它应用中,该热板4更包括数个吸气孔,这些吸气孔连通至该吸附面41。 
该窗型压板5用以压合该承载板23的上表面231,其包括一压板本体51、至少一窗孔52及至少一缓冲装置57。在本实施例中,该窗型压板5更包括数个条压条53,这些压条53包括数个条侧压条531(如图7及图8所示),这些侧压条531位于该窗型压板5的背面两侧。部分这些压条53位于该窗孔52内,且互相交错而定义出数个开口54,每一这些开口54对应每一这些芯片24(如图9所示)。该窗孔52贯穿该压板本体51,用以显露该承载板23的部分上表面231。在本实施例中,该窗孔52显露这些芯片24。 
该缓冲装置57位于该窗孔52之外,该缓冲装置57包括一顶抵端561(如图10所示)。当该窗型压板5压合该承载板23的上表面231时,该顶抵端561顶抵该承载板23的上表面231,当该窗型压板5向上提升时,该顶抵端561向下推开该承载板23,以防止该承载板23被连同该窗型压板5一起向上提升。 
参考图10及图11,显示本发明打线机台的固定治具3A的作动示意图,其中图10沿着图9的线10-10的剖面示意图。图10显示该窗型压板5向下压合的示意图。图11显示该窗型压板5向上提升的示意图。配合参考图9,在本实施例中,该缓冲装置57位于这些侧压条531上,且该缓冲装置57包括一弹性体55及一顶抵块56,该弹性体55为一弹簧,包括一固定端551及一自由端552,该固定端551固设于该压板本体51,该顶抵块56为一球体,其一端连接该弹性体55的自由端552,另一端为该顶抵端561。此外,该压板本体51更包括至少一凹槽511,该弹性体55的该固定端551固定于该凹槽511内,且该顶抵块56于该凹槽511内移动。本实施例的作动方式如下。 
参考图10,当该窗型压板5压合该承载板23的上表面231时,该顶抵块56的顶抵端561顶抵该承载板23的上表面231,该弹性体55为压缩状态。接着参考图11,当该窗型压板5向上提升时,该顶抵端561受该弹性体55弹力而向下推开该承载板23,以防止该承载板23被连同该窗型压板5一起向上提升。 
参考图12,显示本发明打线机台的固定治具3B的第二实施例的示意图,其中该窗型压板7压合该承载板23。参考图13,显示本发明打线机台的固定治具3B的第二实施例的窗型压板7向上提升的示意图。本实施例的固定治具3B与该第一实施例的固定治具3A(图6)大致相同,其中相同的组件赋予相同的编号。本实施例与该第一实施例的不同处在于该压板本体71及该缓冲装置77的结构不同。在本实施例中,该压板本体71不具有任何凹槽,该缓冲装置77为一弹性缓冲层75,其材质为橡 胶,且具有一上表面及一下表面,该上表面为一固定端751,附着于该压板本体71。该下表面为一顶抵端752。参考图12,当该窗型压板7压合该承载板23的上表面231时,该顶抵端752顶抵该承载板23的上表面231,该弹性缓冲层75为压缩状态。参考图13,当该窗型压板7向上提升时,该顶抵端752受该弹性缓冲层75的回复力而向下推开该承载板23,以防止该承载板23被连同该窗型压板7一起向上提升。 
参考图14,显示本发明打线机台的固定治具3C的第三实施例的示意图,其中该窗型压板8压合该承载板23。参考图15,显示本发明打线机台的固定治具3C的第三实施例的窗型压板8向上提升的示意图。本实施例的固定治具3C与该第一实施例的固定治具3A(图6)大致相同,其中相同的组件赋予相同的编号。本实施例与该第一实施例的不同处在于该压板本体81及该缓冲装置87的结构不同。在本实施例中,该压板本体81不具有任何凹槽,该缓冲装置87为一弹性片体85,该弹性片体85的一端为一固定端851,固设于该压板本体81,另一端为一顶抵端852。参考图14,当该窗型压板8压合该承载板23的上表面231时,该顶抵端852顶抵该承载板23的上表面231,且该弹性片体85产生形变。参考图15,当该窗型压板8向上提升时,该顶抵端852受该弹性片体85的回复力而向下推开该承载板23,以防止该承载板23被连同该窗型压板8一起向上提升。此时,该弹性片体85与该压板本体81具有一角度。 
参考图16,显示本发明打线机台的固定治具3D的第四实施例的示意图,其中该窗型压板9压合该承载板23。参考图17,显示本发明打线机台的固定治具3D的第四实施例的窗型压板9向上提升的示意图。本实施例的固定治具3D与该第一实施例的固定治具3A(图6)大致相同,其中相同的组件赋予相同的编号。本实施例与该第一实施例的不同处在于该压板本体91及该缓冲装置97的结构不同。在本实施例中,该压板本体91更包括至少一容置空间911,该容置空间911包括一顶抵开口912。该缓冲装置97为一活动块体95,该活动块体95包括一支撑部951及一顶抵部952。该支撑部951位于该容置空间911内,该支撑部951的面积大于该顶抵开口912的面积,以防止该支撑部951掉出该容置空间911。该顶抵部952的下端为一顶抵端953,该顶抵部952的面积小于该顶抵开口912的面积,使得该顶抵部952可以于该顶抵开口912内移动。参考图16,当该窗型压板9压合该承载板23的上表面231时,该顶抵部952的该顶抵端953顶抵该承载板23的上表面231。参考图17,当该窗型压板9向上提升时,由于该活动块体95的重力作用,使得该顶抵部952的该顶抵端953向下推开该承载板23,以防止该承载板23被连同该窗型压板9一起向上提升。 
藉此,在本发明中,该窗型压板5,7,8,9的缓冲装置57,77,87,97提供一下推力以 推开该承载板23,以防止该承载板23连同该窗型压板5,7,8,9一起向上提升。因而不需如已知技术增加向下压合的压力,如此可避免承载板23翘曲的情况,进而提升良率。 
惟上述实施例仅为说明本发明的原理及其功效,而非用以限制本发明。因此,习于此技术的人士对上述实施例进行修改及变化仍不脱本发明的精神。本发明的权利范围应如后述的权利要求书所列。 

Claims (16)

1.一种窗型压板,用以压合一承载板的上表面,数个芯片黏附于该承载板,包括:
一压板本体;
至少一窗孔,贯穿该压板本体,用以显露该承载板的部分上表面;及
至少一缓冲装置,位于该窗孔之外,该缓冲装置包括一顶抵端,当该窗型压板压合该承载板的上表面时,该顶抵端顶抵该承载板的上表面,当该窗型压板向上提升时,该顶抵端向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。
2.如权利要求1的窗型压板,其中该承载板为一基板条(Substrate Strip)或一导线架(Leadframe)。
3.如权利要求1的窗型压板,更包括数个条压条,部分这些压条位于该窗孔内,且互相交错而定义出数个开口,每一这些开口对应每一这些芯片。
4.如权利要求1的窗型压板,其中这些芯片黏附于该承载板的上表面,该窗型压板的该窗孔显露这些芯片。
5.如权利要求1的窗型压板,其中该缓冲装置包括一弹性体及一顶抵块,该弹性体包括一固定端及一自由端,该固定端固设于该压板本体,该顶抵块的一端连接该弹性体的自由端,另一端为该顶抵端,当该窗型压板压合该承载板的上表面时,该顶抵块的顶抵端顶抵该承载板的上表面,该弹性体为压缩状态,当该窗型压板向上提升时,该顶抵端受该弹性体的弹力而向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。
6.如权利要求5的窗型压板,其中该压板本体更包括至少一凹槽,该弹性体的该固定端固定于该凹槽内,且该顶抵块于该凹槽内移动。
7.如权利要求5的窗型压板,其中该弹性体为一弹簧,该顶抵块为一球体。
8.如权利要求1的窗型压板,其中该缓冲装置为一弹性片体,该弹性片体的一端为一固定端,固设于该压板本体,另一端为该顶抵端,该弹性片体与该压板本体具有一角度,当该窗型压板压合该承载板的上表面时,该顶抵端顶抵该承载板的上表面,且该弹性片体产生形变,当该窗型压板向上提升时,该顶抵端受该弹性片体的回复力而向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。
9.如权利要求1的窗型压板,其中该缓冲装置为一弹性缓冲层,其具有一上表面及一下表面,该上表面为一固定端,附着于该压板本体,该下表面为该顶抵端,当该窗型压板压合该承载板的上表面时,该顶抵端顶抵该承载板的上表面,该弹性缓冲层为压缩状态,当该窗型压板向上提升时,该顶抵端受该弹性缓冲层的回复力而向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。
10.如权利要求1的窗型压板,其中该压板本体更包括至少一容置空间,该容置空间包括一顶抵开口,该缓冲装置为一活动块体,该活动块体包括一支撑部及一顶抵部,该支撑部位于该容置空间内,该支撑部的面积大于该顶抵开口的面积,以防止该支撑部掉出该容置空间,该顶抵部的下端为该顶抵端,该顶抵部的面积小于该顶抵开口的面积,使得该顶抵部可以于该顶抵开口内移动,当该窗型压板压合该承载板的上表面时,该顶抵部的该顶抵端顶抵该承载板的上表面,当该窗型压板向上提升时,由于该活动块体的重力作用,使得该顶抵部的该顶抵端向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。
11.一种窗型压板,用以压合一承载板的上表面,数个芯片黏附于该承载板,包括:
一压板本体,包括至少一容置空间,该容置空间包括一顶抵开口;
至少一窗孔,贯穿该压板本体,用以显露该承载板的部分上表面;及
至少一缓冲装置,位于该窗孔之外,该缓冲装置为一活动块体,该活动块体包括一支撑部及一顶抵部,该支撑部位于该容置空间内,该顶抵部的下端为该顶抵端,当该窗型压板压合该承载板的上表面时,该顶抵部的该顶抵端顶抵该承载板的上表面,当该窗型压板向上提升时,由于该活动块体的重力作用,使得该顶抵部的该顶抵端向下推开该承载板,以防止该承载板被连同该窗型压板一起向上提升。
12.如权利要求11的窗型压板,其中该承载板为一基板条(Substrate Strip)或一导线架(Leadframe)。
13.如权利要求11的窗型压板,更包括数个条压条,部分这些压条位于该窗孔内,且互相交错而定义出数个开口,每一这些开口对应每一这些芯片。
14.如权利要求11的窗型压板,其中这些芯片黏附于该承载板的上表面,该窗型压板的该窗孔显露这些芯片。
15.如权利要求11的窗型压板,其中该支撑部的面积大于该顶抵开口的面积,以防止该支撑部掉出该容置空间。
16.如权利要求11的窗型压板,其中该顶抵部的面积小于该顶抵开口的面积,使得该顶抵部可以于该顶抵开口内移动。
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