CN103594432B - A kind of three-dimension packaging radiator structure of rigid flexible system plate - Google Patents
A kind of three-dimension packaging radiator structure of rigid flexible system plate Download PDFInfo
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- CN103594432B CN103594432B CN201310533073.2A CN201310533073A CN103594432B CN 103594432 B CN103594432 B CN 103594432B CN 201310533073 A CN201310533073 A CN 201310533073A CN 103594432 B CN103594432 B CN 103594432B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32225—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73203—Bump and layer connectors
- H01L2224/73204—Bump and layer connectors the bump connector being embedded into the layer connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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Abstract
The invention discloses a kind of three-dimension packaging radiator structure of rigid flexible system plate, comprising: a flexible base, board; A pressing bottom substrate on flexible substrates and two rigid substrates, two rigid substrates are symmetrically distributed in the both sides of bottom substrate, have dug cavity in two rigid substrates; Be adhesively fixed on two copper bases at two rigid substrates back sides; Be welded on a bottom chip on bottom substrate; Be formed at salient point under the chip between bottom chip and bottom substrate; Be filled in the underfill between bottom chip and bottom substrate under chip around salient point; Be soldered to or adhere to two top chip on two copper bases respectively; Two top chip are bonded to the bonding wire on rigid substrates; Capsulation material; Be formed at the BGA ball at the bottom substrate back side; The pcb board of bottom substrate is fixed by BGA ball; And the radiator on two the copper bases being installed on top.Utilize the present invention, add the heat dissipation path of packaging body, can more efficientlyly shed heat.
Description
Technical field
The present invention relates to microelectronics three-dimensional systematic encapsulation technology field, especially a kind of three-dimension packaging radiator structure of rigid flexible system plate.
Background technology
Fig. 1 is the schematic diagram being realized chip three-dimensional stacking structure in prior art by bending flexible base, board.Wherein 202 is lower layer chip; 204 is upper strata chip; 206 is flexible base, board; 208 is flexible base, board inner surface; 212 is lower layer chip pin; 214 is upper strata chip pin; 216 for filling glue; 222 is BGA ball array; 224 is single BGA ball; 226 is flexible base, board outer surface; 232 is lower layer chip front; 234 is upper strata chip back; 236 is Heraeus; 238 is pcb board.
First this three-dimensional stacking structure carries out Plane Installation, two chips 202 and 204 is welded on the two ends of flexible base, board 206, and between chip and flexible base, board, fills underfill 216; Then the Heraeus 236 of heat conduction is coated at chip 202 and 204 towards upper part; Finally flexible base, board 206 is bent, make two chip 202 and 204 consistencies from top to bottom stacking, affixed by the Heraeus 236 of heat conduction, the circuit realiration be electrically interconnected by flexible base, board 206 of two chips 202 and 204.
The shortcoming of this three-dimensional stacking structure is that upper strata chip 204 exists larger problem in heat radiation, most of heat need that upper strata chip 204 produces shed through the Heraeus 236 of heat conduction, lower layer chip 202, underfill 216, flexible base, board 206, BGA ball 224 and PCB238 successively, heat is not easy to shed, finally cause upper strata chip 204 junction temperature to raise, affect the life-span.
Summary of the invention
(1) technical problem that will solve
In view of this, main purpose of the present invention is the three-dimension packaging radiator structure providing a kind of rigid flexible system plate, with the more efficiently heat that sheds.
(2) technical scheme
For achieving the above object, the invention provides a kind of three-dimension packaging radiator structure of rigid flexible system plate, this three-dimension packaging radiator structure comprises:
A flexible base, board 100;
Be pressed together on the bottom substrate 102 on flexible base, board 100 and two rigid substrates 101, wherein, two rigid substrates 101 are symmetrically distributed in the both sides of bottom substrate 102, and have dug cavity in two rigid substrates 101;
Be adhesively fixed on two copper bases 103 at two rigid substrates 101 back sides;
Be welded on a bottom chip 201 on bottom substrate 102;
Be formed at salient point 301 under the chip between bottom chip 201 and bottom substrate 102;
Be filled in the underfill 400 between bottom chip 201 and bottom substrate 102 under chip around salient point 301;
Be soldered to or adhere to two top chip 203 on two copper bases 103 that rigid substrates 101 exposes owing to hollowing out chamber respectively;
Two top chip 203 are bonded to the bonding wire 302 on rigid substrates 101;
Capsulation material 600, pours into the space formed above the bottom chip 201 making two rigid substrates 101 of flexible base, board 100 both sides be placed on bottom substrate 102 due to bending flexible base, board 100;
Be formed at the BGA ball 700 at bottom substrate 102 back side;
The pcb board 1000 of bottom substrate 102 is fixed by BGA ball 700; And
Radiator 900 on two the copper bases 103 being installed on top by heat-conducting cream 800.
In such scheme, described bottom substrate 102 adopts rigid substrates or flexible base, board.
In such scheme, described two copper bases 103 are the back side using conductive silver paste to be adhesively fixed on two rigid substrates 101 respectively, the length and width size of copper base 103 and the length and width of rigid substrates 101 measure-alike, the both sides being distributed in bottom substrate 102 back side of tiled configuration symmetry.
In such scheme, described bottom chip 201 is small-power chip, and its power is 20 ~ 500mW.
In such scheme, described top chip 203 is high-power chip, and its power is at least 1 watt.
In such scheme, described capsulation material 600 is for the protection of bonding wire 302 and support, top rigid substrates 101.
In such scheme, described BGA ball 700 is that steel mesh is planted BGA ball and formed by brush solder(ing) paste on the pad at bottom substrate 102 back side.
In such scheme, the three-dimension packaging radiator structure of this rigid flexible system plate is bilateral symmetry.
(3) beneficial effect
As can be seen from technique scheme, the present invention has following beneficial effect:
1, the three-dimension packaging radiator structure of rigid flexible system plate provided by the invention, combine by using rigid substrates and flexible base, board, and add copper based structures on the rigid substrate, respectively radiating treatment is carried out to high or low power chip, add the heat dissipation path of packaging body, can more efficientlyly shed heat.
2, the three-dimension packaging radiator structure of rigid flexible system plate provided by the invention, by rigid flexible system plate enterprising parallel planes process Installation chip, then realize three-dimensional stacked by bending flexible base, board, cost is low, and technique is simply ripe.
3, the three-dimension packaging radiator structure of rigid flexible system plate provided by the invention, by on the rigid substrates of upper strata chip, the copper basic mode block of additional high heat conductance, add the heat dissipation path of stacked chips, make the heat of upper strata chip by top copper base, conduct to rapidly packaging body outside to shed, effectively shed heat.
4, the three-dimension packaging radiator structure of rigid flexible system plate provided by the invention, can install many little chips on the rigid substrate simultaneously, the quantity of stacked chips is increased, is convenient to superchip integrated; And the heat produced to shed rapidly packaging body by copper base.
5, the three-dimension packaging radiator structure of rigid flexible system plate provided by the invention, exposed copper base outside packaging body, can install heat abstractor thereon easily, as heat sink, can carry out more efficiently heat radiation to high-power chip.
Accompanying drawing explanation
Fig. 1 is the schematic diagram being realized chip three-dimensional stacking structure in prior art by bending flexible base, board;
Fig. 2 is the schematic diagram of the three-dimension packaging radiator structure of rigid flexible system plate provided by the invention;
Fig. 3 to Fig. 8 is the process chart of the three-dimension packaging radiator structure of making rigid flexible system plate according to the embodiment of the present invention; Wherein:
Fig. 3 is the structural representation of flexible base, board;
Fig. 4 is the structural representation of rigid flexible system plate;
Fig. 5 is the structural representation after rigid flexible system plate digs chamber;
Fig. 6 is the structural representation that rigid flexible system plate is pasted onto on copper base;
The structural representation of Fig. 7 rigid flexible system board plane encapsulation;
The structural representation of the three-dimension packaging after the bending of Fig. 8 rigid flexible system plate.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 2 is the schematic diagram of the three-dimension packaging radiator structure of rigid flexible system plate provided by the invention, and this three-dimension packaging radiator structure comprises:
A flexible base, board 100;
Be pressed together on the bottom substrate 102 on flexible base, board 100 and two rigid substrates 101, wherein, two rigid substrates 101 are symmetrically distributed in the both sides of bottom substrate 102, and dug cavity in two rigid substrates 101, bottom substrate 102 adopts rigid substrates and flexible base, board, and what adopt in the present embodiment is rigid substrates;
Be adhesively fixed on two copper bases 103 at two rigid substrates 101 back sides; Two copper bases 103 are the back side using conductive silver paste to be adhesively fixed on two rigid substrates 101 respectively, copper base 103 length and width size and rigid substrates 101 length and width measure-alike, the both sides being distributed in bottom substrate 102 back side of tiled configuration symmetry;
Be welded on a bottom chip 201 on bottom substrate 102; Bottom chip 201 is generally small-power chip, and its power is 20 ~ 500mW;
Be formed at salient point 301 under the chip between bottom chip 201 and bottom substrate 102;
Be filled in the underfill 400 between bottom chip 201 and bottom substrate 102 under chip around salient point 301;
Be soldered to or adhere to two top chip 203 on two copper bases 103 that rigid substrates 101 exposes owing to hollowing out chamber respectively; Top chip 203 is generally high-power chip, and its power is at least 1 watt;
Two top chip 203 are bonded to the bonding wire 302 on rigid substrates 101;
Capsulation material 600, pour into the space formed above the bottom chip 201 making two rigid substrates 101 of flexible base, board 100 both sides be placed on bottom substrate 102 due to bending flexible base, board 100, for the protection of bonding wire 302 and support, top rigid substrates 101;
BGA ball 700, the BGA ball 700 being formed at bottom substrate 102 back side is that steel mesh is planted BGA ball and formed by brush solder(ing) paste on the pad at bottom substrate 102 back side;
Fixed the pcb board 1000 of bottom substrate 102 by BGA ball 700, the back side of bottom substrate 102 is fixed on pcb board 1000 by BGA ball 700; And
Radiator 900 on two the copper bases 103 being installed on top by heat-conducting cream 800.
The three-dimension packaging radiator structure of rigid flexible system plate provided by the invention, by implementing the modes such as air-cooled to radiator 900, the heat of being derived by copper base 103 effectively sheds more rapidly.The three-dimension packaging radiator structure of this rigid flexible system plate is bilateral symmetry.
Based on the three-dimension packaging radiator structure of the rigid flexible system plate shown in Fig. 2, Fig. 3 to Fig. 8 is the process chart of the three-dimension packaging radiator structure of making rigid flexible system plate according to the embodiment of the present invention, specifically comprises the following steps:
Step 101: make flexible base, board 100, as shown in Figure 3;
Step 102: bottom substrate 102 and two rigid substrates 101 are pressed together on flexible base, board 100, wherein two rigid substrates 101 are symmetrically distributed in the both sides of bottom substrate 102, as shown in Figure 4, bottom substrate 102 adopts rigid substrates and flexible base, board, and what adopt in the present embodiment is rigid substrates;
Step 103: hollow out chamber in two rigid substrates 101, as shown in Figure 5;
Step 104: use conductive silver paste two copper bases 103 to be adhesively fixed on respectively the back side of two rigid substrates 101, copper base 103 length and width size and rigid substrates 101 length and width measure-alike, the both sides being distributed in bottom substrate 102 back side of tiled configuration symmetry, as shown in Figure 6;
Step 105: as shown in Figure 7, is welded on bottom substrate 102 by the mode of flip chip bonding (flip-chip) by bottom chip 201, forms salient point 301 under chip and fill underfill 400 between bottom chip 201 and bottom substrate 102; Then, two top chip 203 are soldered to respectively or adhere to by eutectic solder or conductive silver paste 500 on two copper bases 103 that rigid substrates 101 exposes owing to hollowing out chamber, then by bonding wire 302, two top chip 203 are bonded on rigid substrates 101.
Step 106: as shown in Figure 8, by bending flexible base, board 100, two rigid substrates 101 of flexible base, board 100 both sides are made to be placed in above the bottom chip 201 on bottom substrate 102, and making it fixed-type by pouring into capsulation material 600, capsulation material 600 plays the effect of protection bonding wire 302 and support, top rigid substrates 101; Then brush solder(ing) paste on the pad at bottom substrate 102 back side, BGA ball 700 planted by steel mesh, backflow, forms packaging body.
Step 107: the back side of bottom substrate 102 is fixed on pcb board 1000 by BGA ball 700, and by heat-conducting cream 800 installation of heat radiator 900 on two copper bases 103 at packaging body top, form the three-dimension packaging radiator structure after the bending of rigid flexible system plate.As shown in Figure 2, by implementing the modes such as air-cooled to radiator 900, the heat of being derived by copper base 103 effectively sheds more rapidly three-dimension packaging radiator structure after the rigid flexible system plate bending of final formation.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a three-dimension packaging radiator structure for rigid flexible system plate, is characterized in that, this three-dimension packaging radiator structure comprises:
A flexible base, board (100);
Be pressed together on a bottom substrate (102) on flexible base, board (100) and two rigid substrates (101), wherein, two rigid substrates (101) are symmetrically distributed in the both sides of bottom substrate (102), and have dug cavity in two rigid substrates (101);
Be adhesively fixed on two copper bases (103) at two rigid substrates (101) back sides;
Be welded on a bottom chip (201) on bottom substrate (102);
Be formed at salient point (301) under the chip between bottom chip (201) and bottom substrate (102);
Be filled in the underfill (400) under chip around salient point (301) between bottom chip (201) and bottom substrate (102);
Be soldered to or adhere to two top chip (203) on two copper bases (103) that rigid substrates (101) exposes owing to hollowing out chamber respectively;
Two top chip (203) are bonded to the bonding wire (302) on rigid substrates (101);
Capsulation material (600), pours into the space formed in making two rigid substrates (101) of flexible base, board (100) both sides be placed in bottom chip (201) top on bottom substrate (102) due to bending flexible base, board (100);
Be formed at the BGA ball (700) at bottom substrate (102) back side;
The pcb board (1000) of bottom substrate (102) is fixed by BGA ball (700); And
Radiator (900) on two the copper bases (103) being installed on top by heat-conducting cream (800).
2. the three-dimension packaging radiator structure of rigid flexible system plate according to claim 1, is characterized in that, described bottom substrate (102) adopts rigid substrates or flexible base, board.
3. the three-dimension packaging radiator structure of rigid flexible system plate according to claim 1, it is characterized in that, described two copper bases (103) are the back side using conductive silver paste to be adhesively fixed on two rigid substrates (101) respectively, the length and width size of copper base (103) and the length and width of rigid substrates (101) measure-alike, the both sides being distributed in bottom substrate (102) back side of tiled configuration symmetry.
4. the three-dimension packaging radiator structure of rigid flexible system plate according to claim 1, is characterized in that, described bottom chip (201) is small-power chip, and its power is 20 ~ 500mW.
5. the three-dimension packaging radiator structure of rigid flexible system plate according to claim 1, is characterized in that, described top chip (203) is high-power chip, and its power is at least 1 watt.
6. the three-dimension packaging radiator structure of rigid flexible system plate according to claim 1, is characterized in that, described capsulation material (600) is for the protection of bonding wire (302) and support, top rigid substrates (101).
7. the three-dimension packaging radiator structure of rigid flexible system plate according to claim 1, is characterized in that, described BGA ball (700) is that steel mesh is planted BGA ball and formed by brush solder(ing) paste on the pad at bottom substrate (102) back side.
8. the three-dimension packaging radiator structure of rigid flexible system plate according to claim 1, is characterized in that, the three-dimension packaging radiator structure of this rigid flexible system plate is bilateral symmetry.
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| CN201310533073.2A CN103594432B (en) | 2013-10-31 | 2013-10-31 | A kind of three-dimension packaging radiator structure of rigid flexible system plate |
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| CN104900612B (en) * | 2015-06-09 | 2017-10-27 | 华进半导体封装先导技术研发中心有限公司 | A kind of packaging body with umbilicate type cooling fin fin base stacks radiator structure and preparation method thereof |
| CN104900611B (en) * | 2015-06-09 | 2017-09-08 | 中国科学院微电子研究所 | Three-dimension packaging radiator structure based on flexible base board and preparation method thereof |
| CN107567270A (en) * | 2017-08-30 | 2018-01-09 | 艾威尔电路（深圳）有限公司 | Rigid-flex combined board with high-intensity signal shielding |
| CN107889413B (en) * | 2017-09-29 | 2020-10-13 | 艾威尔电路（深圳）有限公司 | Hollow multifunctional rigid-flex board with inner and outer layer plug-in components |
| US10609844B1 (en) | 2019-02-03 | 2020-03-31 | Hong Kong Applied Science and Technology Research Institute Company Limited | Power converter |
| CN111863794B (en) * | 2020-07-28 | 2022-10-28 | 南通通富微电子有限公司 | Semiconductor packaging device |
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| CN203536412U (en) * | 2013-10-31 | 2014-04-09 | 中国科学院微电子研究所 | A three-dimensional packaging heat-dissipating structure of a rigid-flexible combined board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4849908B2 (en) * | 2006-02-27 | 2012-01-11 | 株式会社フジクラ | Rigid board connection structure |
| TWI365524B (en) * | 2007-10-04 | 2012-06-01 | Unimicron Technology Corp | Stackable semiconductor device and fabrication method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094256A (en) * | 2011-11-08 | 2013-05-08 | 中国科学院微电子研究所 | Sealing system |
| CN103327738A (en) * | 2012-03-22 | 2013-09-25 | 富葵精密组件(深圳)有限公司 | Softness-hardness combined circuit board and manufacturing method thereof |
| CN203536412U (en) * | 2013-10-31 | 2014-04-09 | 中国科学院微电子研究所 | A three-dimensional packaging heat-dissipating structure of a rigid-flexible combined board |
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