CN101211887A - Lead wire frame - Google Patents
Lead wire frame Download PDFInfo
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- CN101211887A CN101211887A CN 200610148240 CN200610148240A CN101211887A CN 101211887 A CN101211887 A CN 101211887A CN 200610148240 CN200610148240 CN 200610148240 CN 200610148240 A CN200610148240 A CN 200610148240A CN 101211887 A CN101211887 A CN 101211887A
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- lead
- hole
- wire
- die pad
- sealing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Lead Frames For Integrated Circuits (AREA)
Abstract
The invention relates to a lead frame, which includes a tube core pad and a lead arranged around the tube core pad. The tube core pad is provided with a through-hole which is arranged on the edge of the tube core pad and is used for passing through metal wire connected with the lead. The lead frame simplifies the encapsulation process of the subsequent semiconductor chip, increases the effect of the preparation process and reduces the manufacturing cost at the same time.
Description
Technical field
The present invention relates to the semiconductor die package field, relate in particular to lead frame used in the semiconductor die package process.
Background technology
Along with the demand of miniaturization, lightweight and the multifunction of electronic component day by day increases, cause semiconductor packages density constantly to increase, thereby shared area must dwindle package dimension and encapsulation the time.Develop in the technology that for satisfying above-mentioned demand, the multi-chip semiconductor encapsulation technology has the index effect for whole cost, usefulness and the reliability of packaged chip.
In the packaged semiconductor process, need semiconductor chip and external circuit be electrically connected with lead frame fetches outside portion circuit the function of being carried out by semiconductor chip is provided, and lead frame is the support semiconductor chip physically.
The structure of existing lead frame such as application number are the technical scheme described in China of 03127406 applies for a patent.As shown in Figure 1, quad flat package (QFP) type lead frame 100 comprises: be used to install the die pad 104 of semiconductor chip and be arranged in die pad 104 a plurality of leads 102 on every side.
The lead frame of prior art is a single layer structure, is applicable to that chip places the monolithic semiconductor encapsulation on the die pad.If form the multi-chip semiconductor encapsulation, then need chip is piled up on die pad, put chip if be sidelong in the die pad difference, the placement direction difference of both sides chip then, then need to carry out further rewiring processing on the side chip therein, make the interconnector symmetry of both sides chip, increase the complexity of processing procedure, reduce the reliability of semiconductor packages, and raise the cost.
Summary of the invention
The problem that the present invention solves provides a kind of lead frame, prevents to increase the complexity of processing procedure, reduces the reliability of semiconductor packages, and raises the cost.
For addressing the above problem, the invention provides a kind of lead frame, comprising: die pad and be positioned at lead-in wire around the die pad, through hole is arranged on the die pad, and through hole is positioned at the die pad edge, described through hole is used for passing with the metal wire that is connected that goes between.
Described through hole is not being communicated with lead-in wire of sealing, or open being communicated with lead-in wire.
Described lead frame is a single layer structure.The material of lead frame is a metal or alloy.Described lead frame is quad flat type or dual in-line package type.
Compared with prior art, the present invention has the following advantages: the present invention has through hole on die pad, and through hole is positioned at the die pad edge, the follow-up chip of installing in the die pad both sides is placed by equidirectional, so chip internal wiring symmetry of die pad both sides, the semiconductor die package process is simplified, improved the flexibility and the effect of processing procedure; Reduce manufacturing cost simultaneously.
Description of drawings
Fig. 1 is a prior art quad flat package type lead frame structure schematic diagram;
Fig. 2 is first kind of structural representation of first embodiment of the invention dual in-line package type lead frame;
Fig. 3 is second kind of structural representation of first embodiment of the invention dual in-line package type lead frame;
Fig. 4 is first kind of structural representation of second embodiment of the invention dual in-line package type lead frame;
Fig. 5 is second kind of structural representation of second embodiment of the invention dual in-line package type lead frame;
Fig. 6 is first kind of structural representation of first embodiment of the invention quad flat package type lead frame;
Fig. 7 is second kind of structural representation of first embodiment of the invention quad flat package type lead frame;
Fig. 8 is first kind of structural representation of second embodiment of the invention quad flat package type lead frame;
Fig. 9 is second kind of structural representation of second embodiment of the invention quad flat package type lead frame.
Embodiment
The die pad of the lead frame of prior art is single connector, is applicable to that chip places the monolithic semiconductor encapsulation of die pad top.If form the multi-chip semiconductor encapsulation, then need chip is piled up on die pad, put chip if be sidelong in the die pad difference, the placement direction difference of both sides chip then, then need to carry out further rewiring processing on the side chip therein, make the interconnector symmetry of both sides chip, increase the complexity of processing procedure, reduce the reliability of semiconductor packages, and raise the cost.The present invention has through hole on die pad, and through hole is positioned at the die pad edge, and the follow-up chip of installing in the die pad both sides is placed by equidirectional, so the chip internal wiring symmetry of die pad both sides, the semiconductor die package process is simplified, improved the flexibility and the effect of processing procedure; Reduce manufacturing cost simultaneously.Below in conjunction with accompanying drawing concrete real mode of the present invention is described in detail.
Lead frame of the present invention comprises: die pad and be positioned at lead-in wire around the die pad, through hole is arranged on the die pad, and through hole is positioned at the die pad edge, and described through hole is used for passing with the metal wire that is connected that goes between.
Fig. 2 is first kind of structural representation of first embodiment of the invention dual in-line package type lead frame.As shown in Figure 2, lead frame 200 comprises die pad 202 and is positioned at the lead-in wire 1,2,3,4,5,6,7,8,9,10,11,12,13 and 14 of die pad 202 peripheries that lead-in wire 1,2,3,4,5,6,7,8,9,10,11,12,13 and 14 stretches out with comb shape and separates with die pad 202; Shape identical and quantity and position and lead-in wire 1,2,3,4,5,6,7,8,9,10,11,12,13 and 14 quantity and corresponding sealing through hole a, b, c, d, e, f, g, h, i, j, k, l, m and the n in position are arranged on the described die pad 202, and described sealing through hole a, b, c, d, e, f, g, h, i, j, k, l, m and n are positioned at the edge of die pad 202; It is corresponding with lead-in wire 1 wherein to seal through hole a, b is corresponding with lead-in wire 2 for the sealing through hole, c is corresponding with lead-in wire 3 for the sealing through hole, d is corresponding with lead-in wire 4 for the sealing through hole, e is corresponding with lead-in wire 5 for the sealing through hole, f is corresponding with lead-in wire 6 for the sealing through hole, g is corresponding with lead-in wire 7 for the sealing through hole, h is corresponding with lead-in wire 8 for the sealing through hole, i is corresponding with lead-in wire 9 for the sealing through hole, j is corresponding with lead-in wire 10 for the sealing through hole, k is corresponding with lead-in wire 11 for the sealing through hole, l is corresponding with lead-in wire 12 for the sealing through hole, sealing through hole m and lead-in wire 13 corresponding and seal through hole n with go between 14 corresponding.
In the present embodiment, the size of sealing through hole a, b, c, d, e, f, g, h, i, j, k, l, m and n is greater than 0.2mm * 0.2mm; Except that embodiment, the size of sealing through hole a, b, c, d, e, f, g, h, i, j, k, l, m and n can be that die pad 202 is not disconnected with whole lead frame 200, and makes the zone that carries chips is arranged on the die pad 202.
Fig. 3 is second kind of structural representation of first embodiment of the invention dual in-line package type lead frame.As shown in Figure 3, lead frame 200 comprises die pad 202 and is positioned at the lead-in wire 1,2,3,4,5,6,7,8,9,10,11,12,13 and 14 of die pad 202 peripheries that lead-in wire 1,2,3,4,5,6,7,8,9,10,11,12,13 and 14 stretches out with comb shape and separates with die pad 202; There are shape identical and quantity and position and lead-in wire 1,2,3,4,5,6,7,8,9,10,11,12,13 and 14 quantity and corresponding open through hole a, b, c, d, e, f, g, h, i, j, k, l, m and the n in position in described die pad 202 edges, and described open through hole a, b, c, d, e, f, g, h, i, j, k, l, m and n are positioned at die pad 202 edges; Wherein open through hole a is corresponding with lead-in wire 1, open through hole b is corresponding with lead-in wire 2, open through hole c is corresponding with lead-in wire 3, open through hole d is corresponding with lead-in wire 4, open through hole e is corresponding with lead-in wire 5, open through hole f is corresponding with lead-in wire 6, open through hole g is corresponding with lead-in wire 7, open through hole h is corresponding with lead-in wire 8, open through hole i is corresponding with lead-in wire 9, open through hole j is corresponding with lead-in wire 10, open through hole k is corresponding with lead-in wire 11, open through hole l is corresponding with lead-in wire 12, open through hole m is corresponding with lead-in wire 14 with lead-in wire 13 corresponding and open through hole n.
In the present embodiment, open through hole a, b, c, d, e, f, g, h, i, j, k, l, m and n disconnect at die pad 202 edges, are communicated with lead-in wire 1,2,3,4,5,6,7,8,9,10,11,12,13 and 14.
The size of open through hole a, b, c, d, e, f, g, h, i, j, k, l, m and n is 0.2mm * 0.3mm; Except that embodiment, the size of open through hole a, b, c, d, e, f, g, h, i, j, k, l, m and n can be that die pad 202 is not disconnected with whole lead frame 200, and makes the zone that carries chips is arranged on the die pad 202.
Fig. 4 is first kind of structural representation of second embodiment of the invention dual in-line package type lead frame.As shown in Figure 4, lead frame 300 comprises die pad 302 and is positioned at a plurality of lead-in wires 304 of die pad 302 peripheries that a plurality of lead-in wires 304 stretch out with comb shape and separate with die pad 302; Have on the described die pad 302 and the every group of 304 corresponding single sealing through holes 306 that go between, described sealing through hole 306 is positioned at die pad 302 edges.
In the present embodiment, the size of sealing through hole 306 is greater than 0.2mm * 2mm; Except that embodiment, the size of sealing through hole 306 can be that die pad 302 is not disconnected with whole lead frame 300, and makes the zone that carries chips is arranged on the die pad 302.
Fig. 5 is second kind of structural representation of second embodiment of the invention dual in-line package type lead frame.As shown in Figure 5, lead frame 300 comprises die pad 302 and is positioned at a plurality of lead-in wires 304 of die pad 302 peripheries that a plurality of lead-in wires 304 stretch out with comb shape and separate with die pad 302; Have on the described die pad 302 and the every group of 304 corresponding single open through holes 306 that go between, described open through hole 306 disconnects at die pad 302 edges, is communicated with lead-in wire 304.
In the present embodiment, the size of open through hole 306 is greater than 0.3mm * 2mm; Except that embodiment,, and make the zone that carries chips is arranged on the die pad 302 as long as open logical 306 size does not disconnect die pad 302 with whole lead frame 300.
Fig. 6 is first kind of structural representation of first embodiment of the invention quad flat package type lead frame.As shown in Figure 6, lead frame 400 comprises die pad 402 and is positioned at lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and the B ' of die pad 402 peripheries that lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and B ' stretch out with comb shape and separate with die pad 402; Sealing through hole 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43 and 44 is arranged on the described die pad 402, and described sealing through hole 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43 and 44 is positioned at die pad 402 edges; Wherein seal through hole 22,23,24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,43 with 44 big or small identical, and sealing through hole 22 is corresponding with the B that goes between, sealing through hole 23 is corresponding with lead-in wire C, sealing through hole 24 is corresponding with lead-in wire D, E is corresponding with lead-in wire 25 for the sealing through hole, F is corresponding with lead-in wire 26 for the sealing through hole, I is corresponding with lead-in wire 28 for the sealing through hole, J is corresponding with lead-in wire 29 for the sealing through hole, K is corresponding with lead-in wire 30 for the sealing through hole, L is corresponding with lead-in wire 31 for the sealing through hole, M is corresponding with lead-in wire 32 for the sealing through hole, P is corresponding with lead-in wire 34 for the sealing through hole, Q is corresponding with lead-in wire 35 for the sealing through hole, R is corresponding with lead-in wire 36 for the sealing through hole, S is corresponding with lead-in wire 37 for the sealing through hole, T is corresponding with lead-in wire 38 for the sealing through hole, W is corresponding with lead-in wire 40 for the sealing through hole, X is corresponding with lead-in wire 41 for the sealing through hole, Y is corresponding with lead-in wire 42 for the sealing through hole, sealing through hole Z and lead-in wire 43 corresponding and seal through hole A ' with go between 44 corresponding; And lead-in wire A and the corresponding same sealing through hole 21 of lead-in wire B ', lead-in wire G and the corresponding same sealing through hole 27 of lead-in wire H, lead-in wire O and the corresponding same sealing through hole 33 of lead-in wire N, lead-in wire U and the corresponding same sealing through hole 39 of lead-in wire V.
In the present embodiment, the shared sealing through hole 21 of lead-in wire A lead-in wire B ', the shared sealing through hole 27 of lead-in wire G and lead-in wire H, the shared sealing through hole 33 of lead-in wire O and lead-in wire N, the shared sealing through hole 39 of lead-in wire U and lead-in wire V is to avoid reducing the overall construction intensity of die pad 402.
In the present embodiment, sealing through hole 22,23,24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,43 with 44 big or small identical, for greater than 0.2mm * 0.2mm; Sealing through hole 21,27,33 with 39 big or small consistent, for greater than 0.4mm * 0.4mm; Except that embodiment, as long as the size of sealing through hole 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43 and 44 does not disconnect die pad 402 with whole lead frame 400, and makes the zone that carries chips is arranged on the die pad 402.
Fig. 7 is second kind of structural representation of first embodiment of the invention quad flat package type lead frame.As shown in Figure 7, lead frame 400 comprises die pad 402 and is positioned at lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and the B ' of die pad 402 peripheries that lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and B ' stretch out with comb shape and separate with die pad 402; Open through hole 22,23,24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,43 and 44 is arranged on the described die pad 402, sealing through hole 21,27,33 and 39, described open through hole 22,23,24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,43 and 44 disconnects at die pad 402 edges, is communicated with corresponding lead-in wire; Wherein open through hole 22,23,24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,43 with 44 big or small identical, and open through hole 22 is corresponding with the B that goes between, open through hole 23 is corresponding with lead-in wire C, open through hole 24 is corresponding with lead-in wire D, open through hole E is corresponding with lead-in wire 25, open through hole F is corresponding with lead-in wire 26, open through hole I is corresponding with lead-in wire 28, open through hole J is corresponding with lead-in wire 29, open through hole K is corresponding with lead-in wire 30, open through hole L is corresponding with lead-in wire 31, open through hole M is corresponding with lead-in wire 32, open through hole P is corresponding with lead-in wire 34, open through hole Q is corresponding with lead-in wire 35, open through hole R is corresponding with lead-in wire 36, open through hole S is corresponding with lead-in wire 37, open through hole T is corresponding with lead-in wire 38, open through hole W is corresponding with lead-in wire 40, open through hole X is corresponding with lead-in wire 41, open through hole Y is corresponding with lead-in wire 42, open through hole Z is corresponding with lead-in wire 44 with lead-in wire 43 corresponding and open through hole A '; And lead-in wire A and the corresponding same sealing through hole 21 of lead-in wire B ', lead-in wire G and the corresponding same sealing through hole 27 of lead-in wire H, lead-in wire O and the corresponding same sealing through hole 33 of lead-in wire N, lead-in wire U and the corresponding same sealing through hole 39 of lead-in wire V.
In the present embodiment, the shared sealing through hole 21 of lead-in wire A lead-in wire B ', the shared sealing through hole 27 of lead-in wire G and lead-in wire H, the shared sealing through hole 33 of lead-in wire O and lead-in wire N, the shared sealing through hole 39 of lead-in wire U and lead-in wire V is to avoid reducing the overall construction intensity of die pad 402.
In the present embodiment, open through hole 22,23,24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,43 with 44 big or small identical, be 0.2mm * 0.3mm; The sealing through hole 21,27,33 with 39 big or small consistent, be 0.4mm * 0.4mm; Except that embodiment, open through hole 22,23,24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,43 and 44 and the size of sealing through hole 21,27,33 and 39 can be that die pad 402 is not disconnected with whole lead frame 400, and make the zone that carries chips is arranged on the die pad 402.
Fig. 8 is first kind of structural representation of second embodiment of the invention quad flat package type lead frame.As shown in Figure 8, lead frame 500 comprises die pad 502 and is positioned at lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and the B ' of die pad 502 peripheries that lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and B ' stretch out with comb shape and separate with die pad 502; Sealing through hole 51,52,53,54,55,56,57 and 58 is arranged on the described die pad 502, described sealing through hole 51,52,53,54,55,56,57 and 58 is positioned at the die pad edge, wherein seal through hole 52,53,55 with 57 big or small identical, and lead-in wire V, W, X, Y, the corresponding same sealing through hole 52 of Z, A ', lead-in wire B, C, D, E, the corresponding same sealing through hole 53 of F, lead-in wire I, J, K, L, the corresponding same sealing through hole 55 of M, lead-in wire P, Q, R, S, the corresponding same sealing through hole 57 of T; Seal the big or small identical of through hole 51,54,56,58, size than sealing through hole 52,53,55 and 57 is little, A and the corresponding same sealing through hole 51 of lead-in wire B ' wherein go between, lead-in wire G and the corresponding same sealing through hole 54 of lead-in wire H, lead-in wire O and the corresponding same sealing through hole 56 of lead-in wire N, lead-in wire U and the corresponding same sealing through hole 58 of lead-in wire V.
In the present embodiment, sealing through hole 52,53,55 with 57 big or small identical, for greater than 0.2mm * 2mm; The size of sealing through hole 51,54,56,58 is consistent, is 0.4mm * 0.4mm; Except that embodiment, the size of sealing through hole 51,52,53,54,55,56,57 and 58 can be that die pad 502 is not disconnected with whole lead frame 500, and makes the zone that carries chips is arranged on the die pad 502.
Fig. 9 is second kind of structural representation of second embodiment of the invention quad flat package type lead frame.As shown in Figure 9, lead frame 500 comprises die pad 502 and is positioned at lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and the B ' of die pad 502 peripheries that lead-in wire A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, A ' and B ' stretch out with comb shape and separate with die pad 502; The identical open through hole 52,53,55 and 57 of size is arranged on the described die pad 502, than the little and big or small identical sealing through hole 51,54,56 and 58 of open through hole 52,53,55 and 57 sizes, described open through hole 52,53,55 and 57 disconnects at die pad 502 edges, is communicated with corresponding lead-in wire; Wherein, lead-in wire V, W, X, Y, the corresponding same open through hole 52 of Z, A ', lead-in wire B, C, D, E, the corresponding same open through hole 53 of F, lead-in wire I, J, K, L, the corresponding same open through hole 55 of M, lead-in wire P, Q, R, S, the corresponding same open through hole 57 of T; Lead-in wire A and the corresponding same sealing through hole 51 of lead-in wire B ', lead-in wire G and the corresponding same sealing through hole 54 of lead-in wire H, lead-in wire O and the corresponding same sealing through hole 56 of lead-in wire N, lead-in wire U and the corresponding same sealing through hole 58 of lead-in wire V.
In the present embodiment, open through hole 52,53,55 with 57 big or small identical, for greater than 0.3mm * 2mm; The size of sealing through hole 51,54,56,58 is consistent, is 0.4mm * 0.4mm; Except that embodiment, open through hole 52,53,55 and 57 and the size of sealing through hole 51,54,56 and 58 can be that die pad 502 is not disconnected with whole lead frame 500, and make the zone that carries chips is arranged on the die pad 502.
Though the present invention with preferred embodiment openly as above; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (5)
1. lead frame comprises: die pad and be positioned at lead-in wire around the die pad, through hole is arranged on the die pad, and through hole is positioned at the die pad edge, and described through hole is used for passing with the metal wire that is connected that goes between.
2. lead frame according to claim 1 is characterized in that: described through hole is not being communicated with lead-in wire of sealing, or open being communicated with lead-in wire.
3. lead frame according to claim 1 is characterized in that: described lead frame is a single layer structure.
4. lead frame according to claim 3 is characterized in that: the material of lead frame is a metal or alloy.
5. lead frame according to claim 3 is characterized in that: described lead frame is quad flat type or dual in-line package type.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610148240 CN100539104C (en) | 2006-12-28 | 2006-12-28 | Lead frame |
| US11/833,247 US20080157307A1 (en) | 2006-12-28 | 2007-08-03 | Lead frame |
| US12/536,019 US20090289337A1 (en) | 2006-12-28 | 2009-08-05 | Lead Frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610148240 CN100539104C (en) | 2006-12-28 | 2006-12-28 | Lead frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101211887A true CN101211887A (en) | 2008-07-02 |
| CN100539104C CN100539104C (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610148240 Expired - Fee Related CN100539104C (en) | 2006-12-28 | 2006-12-28 | Lead frame |
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| Country | Link |
|---|---|
| CN (1) | CN100539104C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859744A (en) * | 2009-04-08 | 2010-10-13 | 马维尔国际贸易有限公司 | Have the exposed die pad encapsulation of power ring |
-
2006
- 2006-12-28 CN CN 200610148240 patent/CN100539104C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859744A (en) * | 2009-04-08 | 2010-10-13 | 马维尔国际贸易有限公司 | Have the exposed die pad encapsulation of power ring |
| CN101859744B (en) * | 2009-04-08 | 2014-10-29 | 马维尔国际贸易有限公司 | Exposed die pad package with power ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100539104C (en) | 2009-09-09 |
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Effective date of registration: 20111118 Address after: 201203 Shanghai City, Pudong New Area Zhangjiang Road No. 18 Co-patentee after: Semiconductor Manufacturing International (Beijing) Corporation Patentee after: Semiconductor Manufacturing International (Shanghai) Corporation Address before: 201203 Shanghai City, Pudong New Area Zhangjiang Road No. 18 Patentee before: Semiconductor Manufacturing International (Shanghai) Corporation |
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Granted publication date: 20090909 Termination date: 20181228 |