Using a Partially Uncured Component Carrier for Manufacturing Component Carrier

Patent metadata

Field	Value
Publication number	US-2018310419-A1
Application number	US-201615769476-A
Country	US
Kind code	A1
Filing date	Oct 21, 2016
Priority date	Oct 22, 2015
Publication date	Oct 25, 2018
Grant date	—

Abstract

A method of manufacturing a component carrier is disclosed. The method includes providing a first component carrier body having at least one first electrically insulating layer structure and at least one first electrically conductive layer structure, providing a second component carrier body having at least one second electrically insulating layer structure and at least one second electrically conductive layer structure, providing at least a part of at least one of the first component carrier body and the second component carrier body of an at least partially uncured material, and interconnecting the first component carrier body with the second component carrier body by curing the at least partially uncured material.

First claim

1 . A method of manufacturing a component carrier, the method comprising:
providing a first component carrier body comprising at least one first electrically insulating layer structure and at least one first electrically conductive layer structure; providing a second component carrier body comprising at least one second electrically insulating layer structure and at least one second electrically conductive layer structure; providing at least a part of the first component carrier body and/or the second component carrier body of an at least partially uncured material; and interconnecting the first component carrier body with the second component carrier body by curing the at least partially uncured material at least in a connection region between the first component carrier body and the second component carrier body.

2 . The method according to claim 1 , wherein the at least partially uncured material comprises or consists of B-stage material.

3 . The method according to claim 1 , wherein the at least partially uncured material is partially cured and partially uncured.

4 . The method according to claim 1 , wherein the first component carrier body is manufactured separately and the second component carrier body is manufactured separately prior to the interconnecting.

5 . The method according claim 1 , wherein at least one of the first component carrier body and the second component carrier body is manufactured separately from the respective other one of the first component carrier body and the second component carrier body, prior to the interconnecting, by pre-laminating the respective at least one electrically conductive layer structure and the respective at least one electrically insulating layer structure including the at least partially uncured material at a pre-lamination temperature which is below a cross-linking start temperature of the at least partially uncured material.

6 . The method according to claim 5 , wherein the pre-lamination temperature is in a range of between 10° C. and 50° C. below the cross-linking start temperature of the at least partially uncured material.

7 . The method according to claim 5 , wherein the pre-lamination temperature of epoxy-based uncured material is at or below 130° C.

8 . The method according to claim 1 , wherein the first component carrier body has a recess in which the second component carrier body is accommodated,
wherein the first component carrier body is plate shaped with two opposing main surfaces and has the recess in a lateral surface between the main surfaces.

9 . (canceled)

10 . The method according to claim 1 , wherein the first component carrier body and the second component carrier body are interconnected by lamination in the presence of elevated pressure and/or elevated temperature, wherein the laminating temporarily melts and cures the at least partially uncured material.

11 . The method according to claim 1 , wherein each of the at least one first electrically insulating layer structure and/or each of the at least one second electrically insulating layer structure comprises or consists of the at least partially uncured material.

12 . The method according to claim 1 , comprising at least one of the following features:
the respective at least one electrically insulating layer structure of one of the first component carrier body and the second component carrier body consists of completely cured material; only a part of the at least one first electrically insulating layer structure and only a part of the at least one second electrically insulating layer structure comprises or consists of the at least partially uncured material.

13 . (canceled)

14 . The method according to claim 1 , wherein the method further comprises heating the at least partially uncured material during manufacturing at least one of the first component carrier body and the second component carrier body to a first maximum temperature which is below a second maximum temperature to which the first component carrier body and the second component carrier body are heated during the interconnecting.

15 . The method according to claim 1 , wherein the method further comprises forming and patterning at least one electrically conductive layer on an exterior surface of the interconnected component carrier bodies.

16 . The method according to claim 1 , wherein the method further comprises forming at least one electrically conductive vertical interconnect structure in the interconnected component carrier bodies.

17 . The method according to claim 1 , wherein the method further comprises surface mounting and/or embedding at least one electronic component on and/or in the interconnected component carrier bodies.

18 . The method according to claim 1 , wherein the method further comprises forming a provisional connection, by at least one of the group consisting of welding and riveting, between the at least one first electrically insulating layer structure and the at least one first electrically conductive layer structure and/or between the at least one second electrically insulating layer structure and the at least one second electrically conductive layer structure, prior to the interconnecting.

19 . A component carrier, comprising:
a first component carrier body comprising at least one first electrically insulating layer structure and at least one first electrically conductive layer structure; a second component carrier body comprising at least one second electrically insulating layer structure and at least one second electrically conductive layer structure; wherein the first component carrier body and the second component carrier body are interconnected by intermingled cured material of the first component carrier body and/or the second component carrier body which had been at least partially uncured prior to a process of interconnecting and which has been cured by the process of interconnecting.

20 . The component carrier according to claim 19 , comprising at least one of the following features:
the first component carrier body and the second component carrier body are integrally interconnected with one another directly without any material in between; the first component carrier body and the second component carrier body differ concerning at least one board-type property selected from a group consisting of
a complexity of constitution of the respective component carrier body;
a number of stacked layer structures of which the respective component carrier body is constituted;
a thickness of a respective of stacked layer structures of which the respective component carrier body is constituted;
one or more materials of stacked layer structures of which the respective component carrier body is constituted;
a high frequency suitability or a lacking high frequency suitability of the respective component carrier body;
an integration density defined as a number of substructures per volume of the respective component carrier body;
one of the component carrier bodies has a higher integration density of substructures than the other one of the component carrier bodies; the first component carrier body is plate shaped with two opposing main surfaces and has a recess in a lateral surface between the main surfaces, wherein the second component carrier body is accommodated in the recess; the first component carrier body and the second component carrier body are electrically connected to one another in an interior of the component carrier; the component carrier comprises at least one o

Assignees

• Austria Tech & System Tech

Inventors

• Grober Gernot
• Liebfahrt Sabine
• Gavagnin Marco

Classifications

• H05K3/4697

  having cavities, e.g. for mounting components (H05K3/4691 takes precedence) · CPC title

• H05K1/0237

  High frequency adaptations (H05K1/0216 takes precedence) · CPC title

• H05K3/36

  Assembling printed circuits with other printed circuits {(H05K7/142 takes precedence)} · CPC title

• H05K3/4614 Primary

  the electrical connections between the circuit boards being made during lamination · CPC title

• H05K3/4694

  Partitioned multilayer circuits having adjacent regions with different properties, e.g. by adding or inserting locally circuit layers having a higher circuit density (H05K3/4691 takes precedence) · CPC title