The present disclosure relates to an underfill structure, and more particularly to an underfill structure with heating function, a semiconductor chip carrying module using the underfill structure, and a method for manufacturing the semiconductor chip carrying module using the underfill structure.
In the related art, an underfill can be filled under a flip chip through capillary action and then cured, thereby improving the reliability of the chip soldering.
In response to the above-referenced technical inadequacy, the present disclosure provides an underfill structure with heating function, and a semiconductor chip carrying module and a method for manufacturing the semiconductor chip carrying module.
In order to solve the above-mentioned problems, one of the technical aspects adopted by the present disclosure is to provide an underfill structure with heating function, which includes an insulating filling material layer and a removable circuit layer. The insulating filling material layer has a plurality of through openings. The removable circuit layer is disposed on the insulating filling material layer without contacting the through openings. The removable circuit layer includes at least one removable circuit trace and a plurality of micro heaters disposed on the at least one removable circuit trace. Each of the micro heaters of the removable circuit layer corresponds to at least one of the through openings.
In order to solve the above-mentioned problems, another one of the technical aspects adopted by the present disclosure is to provide a semiconductor chip carrying module, which includes a circuit substrate, an underfill structure and a semiconductor chip group. The circuit substrate has a plurality of conductive substrate pads. The underfill structure is disposed on the circuit substrate. The semiconductor chip group includes a plurality of semiconductor chips disposed on the underfill structure and electrically connected to the circuit substrate. The underfill structure includes an insulating filling material layer and a removable circuit layer, the insulating filling material layer has a plurality of through openings, and the removable circuit layer is disposed on the insulating filling material layer without contacting the through openings. The removable circuit layer includes at least one removable circuit trace and a plurality of micro heaters disposed on the at least one removable circuit trace. Each of the micro heaters of the removable circuit layer corresponds to at least one of the through openings. When the at least one removable circuit trace is removed, the micro heaters carried by the at least one removable circuit trace are removed along with the at least one removable circuit trace.
In order to solve the above-mentioned problems, yet another one of the technical aspects adopted by the present disclosure is to provide a method for manufacturing a semiconductor chip carrying module, which includes: providing an underfill structure, in which the underfill structure includes an insulating filling material layer and a removable circuit layer, the insulating filling material layer has a plurality of through openings, the removable circuit layer is disposed on the insulating filling material layer without contacting the through openings, and the removable circuit layer includes at least one removable circuit trace and a plurality of micro heaters disposed on the at least one removable circuit trace; placing the underfill structure on a circuit substrate provided with a plurality of conductive substrate pads in advance; placing a plurality of semiconductor chips on the underfill structure, in which at least two conductive chip pads of each of the semiconductor chips are respectively electrically connected to two corresponding ones of the conductive substrate pads of the circuit substrate through two corresponding ones of a plurality of conductive materials; using a plurality of micro heaters of the removable circuit layer to heat the insulating filling material layer and the conductive materials, thereby allowing the semiconductor chips to be bonded on the circuit substrate through the insulating filling material layer and the conductive materials; and then removing the at least one removable circuit trace, thereby allowing the micro heaters carried by the at least one removable circuit trace to be removed along with the at least one removable circuit trace.
Therefore, in the underfill structure with heating function provided by the present disclosure, by virtue of “the insulating filling material layer having a plurality of through openings,” “the removable circuit layer being disposed on the insulating filling material layer without contacting the through openings” and “the removable circuit layer including at least one removable circuit trace and a plurality of micro heaters disposed on the at least one removable circuit trace,” each of the micro heaters can be configured to solidify the insulating filling material layer between the semiconductor chip group (including the semiconductor chips) and the circuit substrate by curing, and to solidify each conductive material between the corresponding conductive substrate pad and the conductive chip pad by curing.
Moreover, in the semiconductor chip carrying module provided by the present disclosure, by virtue of “the insulating filling material layer having a plurality of through openings,” “the removable circuit layer being disposed on the insulating filling material layer without contacting the through openings” and “the removable circuit layer including at least one removable circuit trace and a plurality of micro heaters disposed on the at least one removable circuit trace,” each of the micro heaters can be configured to solidify the insulating filling material layer between the semiconductor chip group (including the semiconductor chips) and the circuit substrate by curing, and to solidify each conductive material between the corresponding conductive substrate pad and the conductive chip pad by curing. More particularly, when the at least one removable circuit trace is removed, the micro heaters carried by the at least one removable circuit trace can be removed along with the at least one removable circuit trace.
Furthermore, in the method for manufacturing the semiconductor chip carrying module provided by the present disclosure, by virtue of “providing an underfill structure, in which the underfill structure includes an insulating filling material layer and a removable circuit layer, and the removable circuit layer includes at least one removable circuit trace and a plurality of micro heaters disposed on the at least one removable circuit trace,” “placing the underfill structure on a circuit substrate provided with a plurality of conductive substrate pads in advance,” “placing a plurality of semiconductor chips on the underfill structure” and “using a plurality of micro heaters of the removable circuit layer to heat the insulating filling material layer and the conductive materials,” each of the micro heaters can be configured to solidify the insulating filling material layer between the semiconductor chip group (including the semiconductor chips) and the circuit substrate by curing, and to solidify each conductive material between the corresponding conductive substrate pad and the conductive chip pad by curing. More particularly, when the at least one removable circuit trace is removed, the micro heaters carried by the at least one removable circuit trace can be removed along with the at least one removable circuit trace.
These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure.
The described embodiments may be better understood by reference to the following description and the accompanying drawings, in which:
The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a,” “an” and “the” includes plural reference, and the meaning of “in” includes “in” and “on.” Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure.
The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first,” “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.
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It should be noted that, for example, referring to
For example, in another feasible embodiment, the step S100 of providing the underfill structure F further includes: providing the insulating filling material layer 1 (step S100(C), one of the upper surface protective layer 11 and the lower surface protective layer 12 being removed in advance), and then forming the removable circuit layer 2 on the insulating filling material layer 1 (step S100(D), another one of the upper surface protective layer 11 and the lower surface protective layer 12 being removed). That is to say, according to different requirements, the insulating filling material layer 1 and the removable circuit layer 2 can be manufactured separately and then bonded together (that is to say, the removable circuit layer 2 can be directly attached to the insulating filling material layer 1 through direct attachment), or the removable circuit layer 2 can also be directly formed on the insulating filling material layer 1 by any forming method (that is to say, the removable circuit layer 2 can be disposed on the insulating filling material layer 1 through subsequent processing or forming processing), thereby eliminating the step of attaching the insulating filling material layer 1 to the removable circuit layer 2 (that is to say, the alignment and attachment steps of the insulating filling material layer 1 and the removable circuit layer 2 can be omitted). However, the aforementioned details are disclosed for exemplary purposes only, and are not meant to limit the scope of the present disclosure.
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In the method of manufacturing the semiconductor chip carrying module provided by the first embodiment of the present disclosure, each of the micro heaters 22 can be configured to solidify the insulating filling material layer 1 between the semiconductor chip group C (including the semiconductor chips C1) and the circuit substrate P by curing, and to solidify each conductive material between the corresponding conductive substrate pad P100 and the conductive chip pad C100 by curing, thereby improving the structural strength (or the impact resistance) of the conductive material B and the bonding strength (or the service life) of the semiconductor chip C1. It should be noted that, when the at least one removable circuit trace 21 is removed, the micro heaters 22 carried by the at least one removable circuit trace 21 can be removed along with the at least one removable circuit trace 21.
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For example, the underfill structure F provided by the third embodiment of the present disclosure can be applied to the method of manufacturing the semiconductor chip carrying module provided in the first embodiment of the present disclosure, applied to the semiconductor chip carrying module M provided by the second embodiment of the present disclosure, or applied to any product that requires the underfill structure F to improve the structural strength (or the impact resistance) of the conductive material B and the bonding strength (or the service life) of the semiconductor chip C1. However, the aforementioned details are disclosed for exemplary purposes only, and are not meant to limit the scope of the present disclosure.
In conclusion, in the underfill structure F with heating function provided by the present disclosure, by virtue of “the insulating filling material layer 1 having a plurality of through openings 100,” “the removable circuit layer 2 being disposed on the insulating filling material layer 1 without contacting the through openings 100” and “the removable circuit layer 2 including at least one removable circuit trace 21 and a plurality of micro heaters 22 disposed on the at least one removable circuit trace 21,” each of the micro heaters 22 can be configured to solidify the insulating filling material layer 1 between the semiconductor chip group C (including the semiconductor chips C1) and the circuit substrate P by curing, and to solidify each conductive material between the corresponding conductive substrate pad P100 and the conductive chip pad C100 by curing.
Furthermore, in the semiconductor chip carrying module M provided by the present disclosure, by virtue of “the insulating filling material layer 1 having a plurality of through openings 100,” “the removable circuit layer 2 being disposed on the insulating filling material layer 1 without contacting the through openings 100” and “the removable circuit layer 2 including at least one removable circuit trace 21 and a plurality of micro heaters 22 disposed on the at least one removable circuit trace 21,” each of the micro heaters 22 can be configured to solidify the insulating filling material layer 1 between the semiconductor chip group C (including the semiconductor chips C1) and the circuit substrate P by curing, and to solidify each conductive material between the corresponding conductive substrate pad P100 and the conductive chip pad C100 by curing. More particularly, when the at least one removable circuit trace 21 is removed, the micro heaters 22 carried by the at least one removable circuit trace 21 can be removed along with the at least one removable circuit trace 21.
Moreover, in the method for manufacturing the semiconductor chip carrying module M provided by the present disclosure, by virtue of “providing an underfill structure F, in which the underfill structure F includes an insulating filling material layer 1 and a removable circuit layer 2, and the removable circuit layer 2 includes at least one removable circuit trace 21 and a plurality of micro heaters 22 disposed on the at least one removable circuit trace 21,” “placing the underfill structure F on a circuit substrate P provided with a plurality of conductive substrate pads P100 in advance,” “placing a plurality of semiconductor chips C1 on the underfill structure F” and “using a plurality of micro heaters 22 of the removable circuit layer 2 to heat the insulating filling material layer 1 and the conductive materials B,” each of the micro heaters 22 can be configured to solidify the insulating filling material layer 1 between the semiconductor chip group C (including the semiconductor chips C1) and the circuit substrate P by curing, and to solidify each conductive material between the corresponding conductive substrate pad P100 and the conductive chip pad C100 by curing. More particularly, when the at least one removable circuit trace 21 is removed, the micro heaters 22 carried by the at least one removable circuit trace 21 can be removed along with the at least one removable circuit trace 21.
The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.
The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.
This application claims the benefit of priority to the U.S. Provisional Patent Application Ser. No. 63/530,071, filed on Aug. 1, 2023, which application is incorporated herein by reference in its entirety. Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.
Number | Date | Country | |
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63530071 | Aug 2023 | US |