CN106971981A - 半导体封装、半导体装置及制造半导体封装的方法 - Google Patents
半导体封装、半导体装置及制造半导体封装的方法 Download PDFInfo
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- CN106971981A CN106971981A CN201611074783.3A CN201611074783A CN106971981A CN 106971981 A CN106971981 A CN 106971981A CN 201611074783 A CN201611074783 A CN 201611074783A CN 106971981 A CN106971981 A CN 106971981A
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Abstract
本发明实施例提供了一种半导体封装、半导体装置及制造半导体封装的方法。其中该半导体封装包括:基底;第一电子元件,设置在该基底上;膜层,设置在该第一电子元件的上表面上;以及封装体,封装该第一电子元件与该膜层。本发明实施例,通过将膜层设置在第一电子元件的上表面与封装体之间,从而提高半导体封装的整体强度。
Description
技术领域
本发明涉及半导体封装技术领域,尤其涉及一种半导体封装、半导体装置及半导体封装的制造方法。
背景技术
于电子产业中,具有高性能的高集成度与多功能性已成为新产品的基本。与此同时,由于制造成本与产品的尺寸成比例,因此高集成度会导至更高的制造成本。因此,要求集成电路(Integrated Circuit,IC)封装的小型化已变得越来越重要。由于PoP(Package-on-package,封装上封装)是解决单个封装中高密度系统集成的划算的方案,因此PoP是目前发展最快的半导体封装技术。但是,由于PoP结构具有薄的厚度,因此PoP结构容易由于加热或其他因素而破裂或损伤。
发明内容
有鉴于此,本发明提供了一种半导体封装、半导体装置及半导体封装的制造方法,可以增加半导体封装的强度。
本发明提供了一种半导体封装,包括:基底;第一电子元件,设置在该基底上,并且具有上表面;膜层,设置在该第一电子元件的该上表面上;以及封装体,封装该第一电子元件与该膜层。
其中,该膜层直接附着于该第一电子元件的该上表面上。
其中,该封装体覆盖该膜层的上表面。
其中,该膜层为通过涂布工艺形成于该第一电子元件的该上表面的薄膜。
其中,该封装体包括:用来覆盖该膜层的上表面的覆盖部分,该膜层的厚度小于该覆盖部分的厚度。
其中,进一步包括:多个导电元件,设置在该基底上并且围绕该第一电子元件;其中,该每个导电元件的一部分由该封装体封装,另一部分从该封装体中露出。
本发明提供了一种半导体装置,包括:如上所述的半导体封装;以及第二电子元件,堆叠在该半导体封装上。
本发明提供了一种半导体封装的制造方法,包括:提供具有上表面的晶圆;在该晶圆的该上表面上设置膜层;形成穿过该晶圆和该膜层的切割路径,以形成至少一个第一电子元件,其中该膜层设置于该第一电子元件上;提供基底;将该第一电子元件设置于该基底上;并且形成封装体,来封装该第一电子元件及该膜层。
其中,在该晶圆的该上表面上设置膜层之前,进一步包括:研磨该晶圆的该上表面。
其中,在该晶圆的该上表面上设置膜层之后,进一步包括:加热该膜层以固化该膜层。
本发明实施例的有益效果是:
本发明实施例在第一电子元件的上表面设置膜层,并由封装体封装该第一电子元件与该膜层,从而可以利用该膜层来增加该封装体与该第一电子元件之间的界面的强度,进而提高半导体封装的强度。
附图说明
在浏览了以下详细描述及附图之后,本发明的上述目的及优点将对本领域技术人员更显而易见,其中:
图1为根据本发明实施例的半导体封装的示意图;
图2为根据本发明另一实施例的半导体封装的示意图;
图3为根据本发明实施例的半导体装置的示意图;
图4A~4G示意了图1的半导体封装的制造过程。
具体实施方式
为了使本发明所解决的技术问题、技术方案及有益效果更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
在本申请说明书及权利要求当中使用了某些词汇来指称特定的元件。本领域技术人员应可理解,硬件制造商可能会用不同的名词来称呼同一个元件。本说明书及权利要求并不以名称的差异作为区分元件的方式,而是以元件在功能上的差异作为区分的准则。在通篇说明书及权利要求当中所提及的“包括”、“包含”为一开放式的用语,故应解释成“包括(含)但不限定于”。另外,“耦接”一词在此为包括任何直接及间接的电气连接手段。因此,若文中描述第一装置耦接于第二装置,则代表该第一装置可直接电气连接至该第二装置,或透过其它装置或连接手段间接地电气连接至该第二装置。
图1为根据本发明实施例的半导体封装100的结构示意图。该半导体封装100包括:基底110、至少一个第一电子元件120、至少一个第一导电接头(conductive contact)130、封装体140及膜层150。
该基底110例如为多层结构或者单层结构。该基底110可以为有机基底、陶瓷基底、硅基底或金属基底,等等。在另一实施例中,该基底110可以为插入层(interposer)或者晶圆,具有至少一个RDL(redistribution layer,重分布层)。
该第一电子元件120设置在该基底110上,并且具有上表面120u。在本实施例中,第一电子元件120以“正面向下”的方向来耦接至基底110的上表面110u,并且通过多个导电接头121电性连接至基底110。该配置有时也称为“倒装芯片”。导电接头121可以为焊料球、导电柱,等等。
在其他实施例中,该第一电子元件120可以采用“正面向上”的方向来耦接至基底110,并且通过多条接合线(未示出)电性连接至基底110。第一电子元件120可以为有源芯片或者无源元件,诸如电阻、电感或电容。在另一实施例中,第一电子元件120的数量可以为几个。
第一导电接头130设置在基底110的上表面110u上,并且围绕该第一电子元件120。第一导电接头130从封装体140中露出,并且用于电性连接外部的电子元件(未示出)。例如,每个第一导电接头130的一部分被封装体140封装住,并且每个第一导电接头130的另一部分从封装体140中露出,以用于电性连接外部的电子元件。另外,第一导电接头130可以为焊料球、导电柱,等等。
第二导电接头135设置在基底110的下表面110b上。该半导体封装100可以通过第二导电接头135设置在外部电路上并电性连接至该外部电路,诸如电路板。第二导电接头135可以为焊料球、导电柱,等等。
封装体140封装第一电子元件120、膜层150及每个第一导电接头130的一部分。在本实施例中,封装体140覆盖膜层150的上表面150u。在另一实施例中,封装体140可以露出膜层150的上表面150u并且覆盖膜层150的侧面。
封装体140包括:用于覆盖膜层150的上表面150u的覆盖部分141。膜层150具有第一厚度T1,大约等于或小于覆盖部分141的第二厚度T2。如此,膜层150可以增加封装体140的强度以防止封装体140在第一电子元件120与封装体140之间的界面处发生破裂。
封装体140可以由同一种材料制成。例如,封装体140可以为模塑料(moldingcompound),该模塑料由含有酚醛基树脂(Novolac-based resin)、环氧基树脂(epoxy-based resin)、硅基树脂(silicone-based resin)或者另一合适的封装剂的材料制成。另外,封装体140也可以包含诸如SiO2等合适的填充料。
膜层150设置在第一电子元件120的上表面120u上,例如膜层150可以为附着在第一电子元件120的上表面120u上的薄膜(film),又例如可以采用涂布(coating)工艺来于第一电子元件120的上表面120u上形成该薄膜。膜层150可以增加第一电子元件120和封装体140之间的界面强度,从而防止封装体140在第一电子元件120和封装体140之间的界面处破裂。另外,膜层150具有粘附性,以有助于将封装体140固定至第一电子元件120,从而增加膜层150与封装体140之间的附着力以及膜层150与第一电子元件120之间的附着力。另外,膜层150可以由环氧树脂、丙烯酸酯树脂或者他们的组合物制成。
在本实施例中,膜层150可以直接附着在第一电子元件120的上表面120u上。在另一实施例中,膜层150可以通过任意层结构(诸如粘附层)附着至第一电子元件120的上表面120u。
图2示意了根据本发明另一实施例的半导体封装200的结构示意图。该半导体封装200包括:上述的基底110、上述的至少一个电子元件120,上述的至少一个导电接头135、上述的封装体140和上述的膜层150。相比于半导体封装100,该半导体封装200可以省略上述的第一导电接头130。
图3示意了本发明实施例的半导体装置10的结构示意图。该半导体装置10包括:半导体封装100及至少一个第二电子元件11。
该第二电子元件11例如可以是存储器、非存储器的半导体元件、另一半导体封装、有源元件、无源元件,等等。在另一实施例中,第二电子元件11可以为含有多个晶粒的半导体封装,诸如彼此堆叠的多个DRAM(Dynamic Random Access Memory,动态随机存取存储器)。
第二电子元件11以“正面向下”的方向或者“正面向上”的方向堆叠在半导体封装100的封装体140上。第二电子元件11通过多个导电接头12电性连接至半导体封装100的第一导电接头130,使得第二电子元件11可以通过导电接头12、第一导电接头130和基底110电性连接至第一电子元件120。此种配置有时也称为“倒装芯片”。导电接头12可以为焊料球、导电柱,等等。
在其他实施例中,第二电子元件11可以采取“正面向上”的方向来堆叠至半导体封装100,并且通过多条导电接合线(未示出)来电性连接至第一导电接头130。
由于膜层150设置在第一电子元件120上以增加第一电子元件120和封装体140之间的界面的强度,因此即使通过加热来将第二电子元件11从半导体封装100移除,也不会轻易使得第一电子元件120和/或封装体140破裂或损伤。
图4A至4G示意了图1的半导体封装100的制造过程。
参考图4A,提供了晶圆120′,其中该晶圆120′具有至少一个电路(未示出)。接着,可以研磨晶圆120′的上表面120u以加强晶粒强度。
参考图4B,将膜层150附着至晶圆120′并且导电接头121设置在晶圆120′上。在实施例中,可以首先将膜层150附着(如黏附)至晶圆120′,接着将导电接头121设置在晶圆120′上。在另一实施例中,可以首先将导电接头121设置在晶圆120′上,接着将膜层150附着至晶圆120′。另外,可以加热膜层150以使其固化。
参考图4C,至少一条切割路径P1穿过晶圆120′及膜层150以形成至少一个第一电子元件120,其中膜层150设置于该第一电子元件120上。例如可以通过使用激光或者机械锯(saw)等来形成切割路径P1。
参考图4D,提供了基底110。该基底110例如为多层结构或者单层结构。该基底110可以为有机基底、陶瓷基底、硅基底、金属基底,等等。在另一实施例中,该基底110可以为插入层或者晶圆,具有至少一个RDL。
参考图4E,通过使用例如SMT(surface-mount technology,表面安装技术)等技术来在基底110的上表面110u上形成第一导电接头130。
参考图4F,将具有膜层150的第一电子元件120设置在基底110上,其中第一导电接头130围绕该第一电子元件120。
参考图4G,形成封装体140,以封装第一电子元件120、膜层150以及每个第一导电接头130的一部分,其中每个第一导电接头130的另一部分从该封装体140露出。封装体140可以由各种封装技术形成,诸如压缩成型、注射成型、转移成型(transfer molding)或者点胶技术(dispensing technology)。
接着,使用例如球安装技术等方式来将图1中的第二导电接头135形成在基底110的下表面110b上,以形成图1的半导体封装100。
在另一实施例中,可以省略第一导电接头130的形成,从而形成图2的半导体封装200。
另外,通过使用SMT来将图3的第二电子元件11设置在图1的封装体140的上方,以形成图3的半导体装置10。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种半导体封装,其特征在于,包括:
基底;
第一电子元件,设置在该基底上,并且具有上表面;
膜层,设置在该第一电子元件的该上表面上;以及
封装体,封装该第一电子元件与该膜层。
2.如权利要求1所述的半导体封装,其特征在于,该膜层直接附着于该第一电子元件的该上表面上。
3.如权利要求1所述的半导体封装,其特征在于,该封装体覆盖该膜层的上表面。
4.如权利要求1所述的半导体封装,其特征在于,该膜层为通过涂布工艺形成于该第一电子元件的该上表面的薄膜。
5.如权利要求1所述的半导体封装,其特征在于,该封装体包括:用来覆盖该膜层的上表面的覆盖部分,该膜层的厚度小于该覆盖部分的厚度。
6.如权利要求1所述的半导体封装,其特征在于,进一步包括:多个导电元件,设置在该基底上并且围绕该第一电子元件;其中,该每个导电元件的一部分由该封装体封装,另一部分从该封装体中露出。
7.一种半导体装置,其特征在于,包括:如权利要求1~6任一项所述的半导体封装;以及第二电子元件,堆叠在该半导体封装上。
8.一种半导体封装的制造方法,其特征在于,包括:
提供具有上表面的晶圆;
在该晶圆的该上表面上设置膜层;
形成穿过该晶圆和该膜层的切割路径,以形成至少一个第一电子元件,其中该膜层设置于该第一电子元件上;
提供基底;
将该第一电子元件设置于该基底上;并且
形成封装体,来封装该第一电子元件及该膜层。
9.如权利要求8所述的半导体封装的制造方法,其特征在于,在该晶圆的该上表面上设置膜层之前,进一步包括:研磨该晶圆的该上表面。
10.如权利要求8所述的半导体封装的制造方法,其特征在于,在该晶圆的该上表面上设置膜层之后,进一步包括:加热该膜层以固化该膜层。
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US20170194227A1 (en) | 2017-07-06 |
US10242927B2 (en) | 2019-03-26 |
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