ELECTRONIC MODULE WITH OPTIMIZED ADHESION OF SEALING MATERIAL, AND FORMING METHOD THEREOF

    公开(公告)号:JP2002076037A

    公开(公告)日:2002-03-15

    申请号:JP2001202574

    申请日:2001-07-03

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide an electronic module having improved adhesion at the interface between a passivation and an underfill of a chip. SOLUTION: The surface of a passivation of a chip is chemically reformed to a sufficient depth so that a set passivation is more reactive. The reformed surface is processed with a polyamide. During reflow of solder joint of an electronic module under heat, the reformed passivation reacts with the polyamine at an amine functional group, After the electronic module is underfilled with the polymer material, the polyamine on the surface of the passivation reacts with the underfill material while the underfill material sets. Since the amine acts as a chemical fixing part for both the reformed passivation and the underfill material, the provided electronic module is less fragile.

    ELECTRONIC MODULE HAVING OPTIMIZED ADHESION PROPERTY OF SEALING MATERIAL AND ITS MOLDING

    公开(公告)号:JP2000281820A

    公开(公告)日:2000-10-10

    申请号:JP2000065480

    申请日:2000-03-09

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide an electronic module having an improved adhesion at the boundary of a passivation with an under-fill of a chip. SOLUTION: This electronic module is obtained by chemically modifying the surface of a passivation 5 until a sufficient depth so as to enrich the reactivity of the cured passivation 5. The modified surface is treated with a polyamine. During a reflow of a soldering of the electronic module by heating, the modified passivation 5 reacts with the polyamine with its amine functional group. After under-filling the electronic module with a polymer material, the polyamine on the surface of the passivation 5 reacts with the under-fill material 15 while the under-fill material 15 is cured. Since the amine acts as a chemical fixing position to both cured passivation 5 and the under-fill material 15, the obtained electronic module is tough.

    FLIP-CHIP PACKAGE WITH OPTIMIZED ENCAPSULANT ADHESION AND METHOD

    公开(公告)号:CA2291568A1

    公开(公告)日:2000-09-19

    申请号:CA2291568

    申请日:1999-12-02

    Applicant: IBM

    Abstract: 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.

    FLIP-CHIP PACKAGE WITH OPTIMIZED ENCAPSULANT ADHESION AND METHOD

    公开(公告)号:MY127692A

    公开(公告)日:2006-12-29

    申请号:MYPI20000649

    申请日:2000-02-22

    Applicant: IBM

    Abstract: 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 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 FUNCTIONALLY. 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.(FIG. 1)

    FLIP-CHIP PACKAGE WITH OPTIMIZED ENCAPSULANT ADHESION AND METHOD

    公开(公告)号:HK1031276A1

    公开(公告)日:2001-06-08

    申请号:HK01102059

    申请日:2001-03-21

    Applicant: IBM

    Abstract: 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.

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