Flip-chip package with optimized encapsulant adhesion and method
    1.
    发明授权
    Flip-chip package with optimized encapsulant adhesion and method 有权
    具有优化的密封剂附着力和方法的倒装芯片封装

    公开(公告)号:US06248614B1

    公开(公告)日:2001-06-19

    申请号:US09272518

    申请日:1999-03-19

    IPC分类号: H01L2144

    摘要: An electronic module having enhanced adhesion at the chip passivation and underfill interface is disclosed. The surface of the chip passivation is chemically modified to a sufficient depth such that the cured passivation is more reactive. The modified surface is treated with a polyamine preferably having a cyclic amine group extending from a preferably aliphatic backbone. During reflow of the solder joints of the electronic module by heating, the modified passivation reacts with the polyamine at the amine functionality. Following underfill of the electronic module with a polymeric material, preferably an epoxy resin, the polyamine on the surface of the passivation reacts with the underfill material during curing of the underfill material. The resulting electronic module is more robust since the amine acts as a chemical anchoring site for both the modified passivation and the underfill material. A method of assembling an electronic module utilizing the polyamine treatment at the chip and wafer level is also disclosed.

    摘要翻译: 公开了一种在芯片钝化和底部填充界面处具有增强的附着力的电子模块。 芯片钝化的表面被化学修饰到足够的深度,使得固化的钝化更具反应性。 改性表面用优选具有从优选脂肪族主链延伸的环状胺基团的多胺处理。 在通过加热回流电子模块的焊点时,改性的钝化剂在胺官能度下与多胺反应。 在具有聚合材料,优选环氧树脂的电子模块的底部填充之后,钝化剂表面上的多胺在底部填充材料的固化期间与底部填充材料反应。 所得到的电子模块更加坚固,因为胺用作修饰的钝化和底部填充材料的化学锚定位点。 还公开了利用芯片和晶片级的多胺处理来组装电子模块的方法。

    Flip-chip package with optimized encapsulant adhesion and method
    2.
    发明授权
    Flip-chip package with optimized encapsulant adhesion and method 有权
    具有优化的密封剂附着力和方法的倒装芯片封装

    公开(公告)号:US06596559B2

    公开(公告)日:2003-07-22

    申请号:US09822746

    申请日:2001-03-30

    IPC分类号: H01L2144

    摘要: An electronic module having enhanced adhesion at the chip passivation and underfill interface is disclosed. The surface of the chip passivation is chemically modified to a sufficient depth such that the cured passivation is more reactive. The modified surface is treated with a polyamine preferably having a cyclic amine group extending from a preferably aliphatic backbone. During reflow of the solder joints of the electronic module by heating, the modified passivation reacts with the polyamine at the amine functionality. Following underfill of the electronic module with a polymeric material, preferably an epoxy resin, the polyamine on the surface of the passivation reacts with the underfill material during curing of the underfill material. The resulting electronic module is more robust since the amine acts as a chemical anchoring site for both the modified passivation and the underfill material. A method of assembling an electronic module utilizing the polyamine treatment at the chip and wafer level is also disclosed.

    摘要翻译: 公开了一种在芯片钝化和底部填充界面处具有增强的附着力的电子模块。 芯片钝化的表面被化学修饰到足够的深度,使得固化的钝化更具反应性。 改性表面用优选具有从优选脂肪族主链延伸的环状胺基团的多胺处理。 在通过加热回流电子模块的焊点时,改性的钝化剂在胺官能度下与多胺反应。 在具有聚合材料,优选环氧树脂的电子模块的底部填充之后,钝化剂表面上的多胺在底部填充材料的固化期间与底部填充材料反应。 所得到的电子模块更加坚固,因为胺用作修饰的钝化和底部填充材料的化学锚定位点。 还公开了利用芯片和晶片级的多胺处理来组装电子模块的方法。

    Flip-chip package with optimized encapsulant adhesion and method
    3.
    发明授权
    Flip-chip package with optimized encapsulant adhesion and method 失效
    具有优化的密封剂附着力和方法的倒装芯片封装

    公开(公告)号:US06713858B2

    公开(公告)日:2004-03-30

    申请号:US10404774

    申请日:2003-03-31

    IPC分类号: H01L2302

    摘要: An electronic module having enhanced adhesion at the chip passivation and underfill interface is disclosed. The surface of the chip passivation is chemically modified to a sufficient depth such that the cured passivation is more reactive. The modified surface is treated with a polyamine preferably having a cyclic amine group extending from a preferably aliphatic backbone. During reflow of the solder joints of the electronic module by heating, the modified passivation reacts with the polyamine at the amine functionality. Following underfill of the electronic module with a polymeric material, preferably an epoxy resin, the polyamine on the surface of the passivation reacts with the underfill material during curing of the underfill material. The resulting electronic module is more robust since the amine acts as a chemical anchoring site for both the modified passivation and the underfill material. A method of assembling an electronic module utilizing the polyamine treatment at the chip and wafer level is also disclosed.

    摘要翻译: 公开了一种在芯片钝化和底部填充界面处具有增强的附着力的电子模块。 芯片钝化的表面被化学修饰到足够的深度,使得固化的钝化更具反应性。 改性表面用优选具有从优选脂肪族主链延伸的环状胺基团的多胺处理。 在通过加热回流电子模块的焊点时,改性的钝化剂在胺官能度下与多胺反应。 在具有聚合材料,优选环氧树脂的电子模块的底部填充之后,钝化剂表面上的多胺在底部填充材料的固化期间与底部填充材料反应。 所得到的电子模块更加坚固,因为胺用作修饰的钝化和底部填充材料的化学锚定位点。 还公开了利用芯片和晶片级的多胺处理来组装电子模块的方法。

    Method for bonding heat sinks to overmolds and device formed thereby
    4.
    发明授权
    Method for bonding heat sinks to overmolds and device formed thereby 有权
    用于将散热器连接到包覆成型体的方法和由此形成的装置

    公开(公告)号:US06770968B2

    公开(公告)日:2004-08-03

    申请号:US10369778

    申请日:2003-02-19

    IPC分类号: H01L2334

    摘要: A method for bonding heat sinks to packaged electronic components comprises the steps of: (a) exposing to a plasma a surface of a molded polymer formed on a substrate; (b) allowing the plasma to at least partially convert silicon-containing residue on the surface to silica; and (c) bonding an article to the surface by applying an adherent between the article and the surface. Often, the silicon-containing residue is silicone oil, a mold release compound, which may prevent the formation of a bond when using conventional bonding methods and materials. The silica layer formed on the surface of the molded polymer assists in formation of a proper bond. The plasma may be an oxygen plasma and the adherent may be selected from either a heat cured silicone-based paste adhesive with a metal oxide filler or a heat cured porous polymer film impregnated with adhesive. In particular, the film may be polytetrafluoroethylene, the adhesive may be polybutadine, and the film may be further impregnated with a metal oxide heat transfer medium, such as zinc oxide. An alternate method comprises applying the porous polymer film without plasma treatment and heat curing the film to form a proper bond.

    摘要翻译: 一种用于将散热器粘合到封装的电子部件的方法包括以下步骤:(a)将形成在基底上的模制聚合物的表面暴露于等离子体; (b)允许等离子体至少部分地将表面上的含硅残余物转化为二氧化硅; 和(c)通过在制品和表面之间施加贴附物将物品粘合到表面上。 通常,含硅残渣是使用常规粘合方法和材料的硅油,脱模剂,可以防止形成粘结。 形成在模塑聚合物表面上的二氧化硅层有助于形成适当的键。 等离子体可以是氧等离子体,并且粘合剂可以选自具有金属氧化物填料的热固化的硅氧烷基糊状粘合剂或浸渍有粘合剂的热固化多孔聚合物膜。 特别地,膜可以是聚四氟乙烯,粘合剂可以是聚丁二烯,并且该膜可以进一步用金属氧化物传热介质如氧化锌浸渍。 替代方法包括在不进行等离子体处理的情况下应用多孔聚合物膜并热固化膜以形成适当的键。

    Method for bonding heat sinks to overmolds and device formed thereby
    7.
    发明授权
    Method for bonding heat sinks to overmolds and device formed thereby 失效
    用于将散热器连接到包覆成型体的方法和由此形成的装置

    公开(公告)号:US06206997B1

    公开(公告)日:2001-03-27

    申请号:US09248341

    申请日:1999-02-11

    IPC分类号: B32B3112

    摘要: A method for bonding heat sinks to packaged electronic components comprises the steps of: (a) exposing to a plasma a surface of a molded polymer formed on a substrate; (b) allowing the plasma to at least partially convert silicon-containing residue on the surface to silica; and (c) bonding an article to the surface by applying an adherent material between the article and the surface. Often, the silicon-containing residue is silicone oil, a mold release compound, which may prevent the formation of a bond when using conventional bonding methods and materials. The silica layer formed on the surface of the molded polymer assists in formation of a proper bond. The plasma may be an oxygen plasma and the adherent material may be selected from either a heat cured silicone-based paste adhesive with a metal oxide filler or a heat cured porous polymer film impregnated with adhesive. In particular, the film may be polytetrafluoroethylene, the adhesive may be polybutadine, and the film may be further impregnated with a metal oxide heat transfer medium, such as zinc oxide. An alternate method comprises applying the porous polymer film without plasma treatment and heat curing the film to form a proper bond.

    摘要翻译: 一种用于将散热器粘合到封装的电子部件的方法包括以下步骤:(a)将形成在基底上的模制聚合物的表面暴露于等离子体; (b)允许等离子体至少部分地将表面上的含硅残余物转化为二氧化硅; 和(c)通过在制品和表面之间施加粘附材料将制品粘合到表面上。 通常,含硅残渣是使用常规粘合方法和材料的硅油,脱模剂,可以防止形成粘结。 形成在模塑聚合物表面上的二氧化硅层有助于形成适当的键。 等离子体可以是氧等离子体,并且粘附材料可以选自具有金属氧化物填料的热固化硅氧烷基糊状粘合剂或浸渍有粘合剂的热固化多孔聚合物膜。 特别地,膜可以是聚四氟乙烯,粘合剂可以是聚丁二烯,并且该膜可以进一步用金属氧化物传热介质如氧化锌浸渍。 替代方法包括在不进行等离子体处理的情况下应用多孔聚合物膜并热固化膜以形成适当的键。