US5350947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film carrier semiconductor device
Assignee: NEC Corp
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Filing: 1992-10-28
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Granted: 1994-09-27
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Expires: 2012-10-28
Abstract
Abstract A film carrier semiconductor device includes a film carrier tape, an outer lead bonding bump mounting portion, a semiconductor chip, inner lead bonding leads, and outer lead bonding bumps. The film carrier tape consists of a tape-like insulating material and has carrying and positioning sprocket holes in its both edge portions. The outer lead bonding bump mounting portion is formed in a central portion of the film carrier tape. The semiconductor chip is mounted on the outer lead bonding bump mounting portion and has electrode bumps formed on electrode pads. The inner lead bonding leads are formed into a predetermined pattern on the film carrier tape and connected to the electrode bumps. The outer lead bonding bumps are formed on the outer lead bonding bump mounting portion, to each of which one end of a corresponding one of the inner lead bonding leads is connected.
Inventors
- 👤 Kouichi Takekawa
- 👤 Michitaka Urushima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:00
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/453; H10W74/00; H10W74/01; H10W74/012; H10W74/10; H10W74/15; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236; H10W72/07251; H10W72/20; H10W72/251; H10W72/252; H10W72/851; H10W72/853; H10W72/856
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
214 words
A film carrier semiconductor device comprising: a film carrier tape consisting of a tape-like insulating material and having carrying and positioning sprocket holes in both edge portions thereof; an outer lead bonding bump mounting portion formed in a central portion of said film carrier tape; said film carrier tape having inner lead bonding holes formed around said outer lead bonding bump mounting portion; a semiconductor chip mounted on said outer lead bonding bump mounting portion and having electrode bumps outwardly projecting from a surface of the semiconductor chip; inner lead bonding leads formed into a predetermined pattern on said film carrier tape and bonded to said electrode bumps at locations opposing said inner lead bonding holes; and outer lead bonding bumps formed on said outer lead bonding bump mounting portion, to each of which one end of a corresponding one of said inner lead bonding leads is connected, said outer lead bonding bump mounting portion having a resin encapsulating hole formed therein and a resin material received in said encapsulating hole and encapsulating said semiconductor chip from a lower surface of said film carrier tape, wherein said outer lead bonding bumps are formed on a lower surface of said film carrier tape and connected to said outer lead bonding bumps through conductive through holes.
Claim 2
Dependent Claim
214 words
A film carrier semiconductor device comprising: a film carrier tape consisting of a tape-like insulating material and having carrying and positioning sprocket holes in both edge portions thereof; an outer lead bonding bump mounting portion formed in a central portion of said film carrier tape; said film carrier tape having inner lead bonding holes formed around said outer lead bonding bump mounting portion; a semiconductor chip mounted on said outer lead bonding bump mounting portion and having electrode bumps outwardly projecting from a surface of the semiconductor chip; inner lead bonding leads formed into a predetermined pattern on said film carrier tape and bonded to said electrode bumps at locations opposing said inner lead bonding holes; and outer lead bonding bumps formed on said outer lead bonding bump mounting portion, to each of which one end of a corresponding one of said inner lead bonding leads is connected, said outer lead bonding bump mounting portion having a resin encapsulating hole formed therein and a resin material received in said encapsulating hole and encapsulating said semiconductor chip from a lower surface of said film carrier tape, wherein said outer lead bonding bumps are formed on a lower surface of said film carrier tape and connected to said outer lead bonding bumps through conductive through holes.
Claim 3
Dependent Claim
107 words
A device according to claim 1, wherein said film carrier tape includes outer lead bonding holes formed around said inner lead bonding holes, outer lead bonding leads are formed to oppose said outer lead bonding holes, the other end of each of said inner lead bonding leads each having one end connected to a corresponding one of said outer lead bonding bumps is connected to one end of a corresponding one of said outer lead bonding leads, and the other end of each of said outer lead bonding leads is connected to a corresponding one of pads for electrical selection formed outside said outer lead bonding holes.
Claim 4
Dependent Claim
38 words
A device according to claim 2, wherein a portion of said film carrier tape between said inner lead bonding holes and said outer lead bonding holes constitutes a suspender for preventing deformation of said inner lead bonding leads.
Claim 5
Dependent Claim
40 words
A device according to claim 1, wherein said inner lead bonding leads are formed in a cantilever state in which one end of each of said inner lead bonding leads is held by said outer lead bonding bump mounting portion.
Claim 6
Dependent Claim
67 words
A device according to claim 4, wherein said outer lead bonding bumps are formed on an upper surface side of said outer lead bonding bump mounting portion, and said semiconductor chip is mounted by face-up bonding by connecting the other end of each of said inner lead bonding leads to a corresponding one of said electrode bumps on the lower surface side of said film carrier tape.
Claim 7
Dependent Claim
31 words
A device according to claim 1, wherein said film carrier tape and said inner lead bonding leads consist of materials having thermal expansion coefficients close to that of said semiconductor chip.
Claim 8
Dependent Claim
27 words
A device according to claim 6, wherein said film carrier tape consists of a polyimide resin, and said inner lead bonding leads consist of a 42 alloy.
Claim 9
Dependent Claim
25 words
A device according to claim 6, wherein said film carrier tape consist of a polyimide resin, and said inner lead bonding leads consist of Fernico.
Claim 10
Dependent Claim
28 words
A device according to claim 6, wherein the thermal expansion coefficient of said base film is 2.0×10 -6 ° C. -1 to 7.0×10 -6 ° C. -1 .
Claim 11
Dependent Claim
190 words
A film carrier tape comprising: a base film consisting of a polyimide resin having a thermal expansion coefficient close to that of a semiconductor chip; the thermal expansion coefficient of said base film being 2.0×10 -6 ° C. -1 to 7.0×10 -6 ° C. -1 ; leads formed on said base film and made of a material selected from the group consisting of 42 alloy and Ferico having a thermal expansion coefficient close to that of a semiconductor chip; a bump mounting portion, formed in a central portion of said base film, for mounting the semiconductor chip thereon; through holes formed in said bump mounting portion at positions immediately below said leads; bumps formed in said through holes so as to project from a lower surface of said base film and connected to said leads; lead bonding holes formed around said bump mounting portion, said leads being bonded to electrode bumps of the semiconductor chip at said lead bonding holes; a resin encapsulating hole formed in said bump mounting portion; and a resin material filling said hole and encapsulating the semiconductor chip from the lower surface of said base film.
Claim 12
Dependent Claim
190 words
A film carrier tape comprising: a base film consisting of a polyimide resin having a thermal expansion coefficient close to that of a semiconductor chip; the thermal expansion coefficient of said base film being 2.0×10 -6 ° C. -1 to 7.0×10 -6 ° C. -1 ; leads formed on said base film and made of a material selected from the group consisting of 42 alloy and Ferico having a thermal expansion coefficient close to that of a semiconductor chip; a bump mounting portion, formed in a central portion of said base film, for mounting the semiconductor chip thereon; through holes formed in said bump mounting portion at positions immediately below said leads; bumps formed in said through holes so as to project from a lower surface of said base film and connected to said leads; lead bonding holes formed around said bump mounting portion, said leads being bonded to electrode bumps of the semiconductor chip at said lead bonding holes; a resin encapsulating hole formed in said bump mounting portion; and a resin material filling said hole and encapsulating the semiconductor chip from the lower surface of said base film.
Claim 13
Dependent Claim
344 words
A film carrier semiconductor device comprising: a film carrier tape consisting of a tape-like insulating material and having carrying and positioning sprocket holes in both edge portions thereof; an outer lead bonding bump mounting portion formed in a central portion of said film carrier tape; said film carrier tape having inner lead bonding holes formed around said outer lead bonding bump mounting portion; a semiconductor chip mounted on said outer lead bonding bump mounting portion and having electrode bumps outwardly projecting from a surface of the semiconductor chip; inner lead bonding leads formed into a predetermined pattern on said film carrier tape and bonded to said electrode bumps at locations opposing said inner lead bonding holes; and outer lead bonding bumps formed on said outer lead bonding bump mounting portion, to each of which one end of a corresponding one of said inner lead bonding leads is connected, said outer lead bonding bump mounting portion having a resin encapsulating hole formed therein, and a resin material filling said hole and encapsulating said semiconductor chip from a lower surface of said film carrier tape; wherein: said film carrier tape includes outer lead bonding holes formed around said inner lead bonding holes, outer lead bonding leads are formed to oppose said outer lead bonding holes, the other end of each of said inner lead bonding leads each having one end connected to a corresponding one of said outer lead bonding bumps is connected to one end of a corresponding one of said outer lead bonding leads, and the other end of each of said outer lead bonding leads is connected to a corresponding one of pads for electrical selection formed outside said outer lead bonding holes; a portion of said film carrier tape between said inner lead bonding holes and said outer lead bonding holes constitutes a suspender for preventing deformation of said inner lead bonding leads; and said outer lead bonding bumps are formed on a lower surface of said film carrier tape and connected to said outer lead bonding bumps through conductive through holes.
Claim 14
Dependent Claim
344 words
A film carrier semiconductor device comprising: a film carrier tape consisting of a tape-like insulating material and having carrying and positioning sprocket holes in both edge portions thereof; an outer lead bonding bump mounting portion formed in a central portion of said film carrier tape; said film carrier tape having inner lead bonding holes formed around said outer lead bonding bump mounting portion; a semiconductor chip mounted on said outer lead bonding bump mounting portion and having electrode bumps outwardly projecting from a surface of the semiconductor chip; inner lead bonding leads formed into a predetermined pattern on said film carrier tape and bonded to said electrode bumps at locations opposing said inner lead bonding holes; and outer lead bonding bumps formed on said outer lead bonding bump mounting portion, to each of which one end of a corresponding one of said inner lead bonding leads is connected, said outer lead bonding bump mounting portion having a resin encapsulating hole formed therein, and a resin material filling said hole and encapsulating said semiconductor chip from a lower surface of said film carrier tape; wherein: said film carrier tape includes outer lead bonding holes formed around said inner lead bonding holes, outer lead bonding leads are formed to oppose said outer lead bonding holes, the other end of each of said inner lead bonding leads each having one end connected to a corresponding one of said outer lead bonding bumps is connected to one end of a corresponding one of said outer lead bonding leads, and the other end of each of said outer lead bonding leads is connected to a corresponding one of pads for electrical selection formed outside said outer lead bonding holes; a portion of said film carrier tape between said inner lead bonding holes and said outer lead bonding holes constitutes a suspender for preventing deformation of said inner lead bonding leads; and said outer lead bonding bumps are formed on a lower surface of said film carrier tape and connected to said outer lead bonding bumps through conductive through holes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-09-26 | 1998-03-28 | 1998-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-26 | 2002-03-28 | 2002-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-26 | 2006-03-28 | 2006-09-27 | $7700.00 | Window Closed / Lapsed |