US5686362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a semiconductor integrated circuit device
Assignee: Rohm Co Ltd
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Filing: 1995-04-28
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Granted: 1997-11-11
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Expires: 2015-04-28
Abstract
Abstract A single semiconductor chip containing a control portion and a power portion including a power element associated with the control portion and a concave portion formed between the control portion and the power portion is mounted on a die pad so as to separate the control portion and the power portion. The die pad has a convex portion which is received in the concave portion and the semiconductor chip is divided to separate the control portion and the power portion by applying pressure to the chip or by applying laser beams, and the separated semiconductor chip portions are simultaneously bonded to the die pad.
Inventors
- 👤 Satoshi Furuno
- 👤 Kenji Ohtani
- 👤 Koichi Inoue
- 👤 Koichi Yamasaki
- 👤 Keisuke Naganuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:12
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/30; H10W70/00; H10W70/40; H10W70/411; H10W90/00; H10W90/811
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
129 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing a first semiconductor chip portion and a second semiconductor chip portion having a power element which is associated with the first semiconductor chip portion and forming a concave portion between the first and second semiconductor chip portions; forming a convex portion having a height which is greater than a depth of the concave portion on a semiconductor chip mounting member on which the first and second semiconductor chip portions are to be mounted; and dividing the first and second semiconductor chip portions by pressing the concave portion against the convex portion and bonding the first and second semiconductor chip portions on the semiconductor chip mounting member to effect die bonding.
Claim 2
Independent Claim
129 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing a first semiconductor chip portion and a second semiconductor chip portion having a power element which is associated with the first semiconductor chip portion and forming a concave portion between the first and second semiconductor chip portions; forming a convex portion having a height which is greater than a depth of the concave portion on a semiconductor chip mounting member on which the first and second semiconductor chip portions are to be mounted; and dividing the first and second semiconductor chip portions by pressing the concave portion against the convex portion and bonding the first and second semiconductor chip portions on the semiconductor chip mounting member to effect die bonding.
Claim 3
Independent Claim
143 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing a first semiconductor chip portion and a second semiconductor chip portion having a power element which is associated with the first semiconductor chip portion and forming a concave portion between the first and second semiconductor chip portions; forming a convex portion having a shape which is similar to the shape of the concave portion on a semiconductor chip mounting member on which said first and second semiconductor chip portions are to be mounted; and bonding said first and second semiconductor chip portions on the semiconductor chip mounting member so that said convex mounting member portion is received in the concave chip portion and impinging laser beams on the concave chip portion to separate the first and second semiconductor chip portions and effect die bonding.
Claim 4
Independent Claim
143 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing a first semiconductor chip portion and a second semiconductor chip portion having a power element which is associated with the first semiconductor chip portion and forming a concave portion between the first and second semiconductor chip portions; forming a convex portion having a shape which is similar to the shape of the concave portion on a semiconductor chip mounting member on which said first and second semiconductor chip portions are to be mounted; and bonding said first and second semiconductor chip portions on the semiconductor chip mounting member so that said convex mounting member portion is received in the concave chip portion and impinging laser beams on the concave chip portion to separate the first and second semiconductor chip portions and effect die bonding.
Claim 5
Independent Claim
127 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing first semiconductor chip portions and second semiconductor chip portions having power elements which are associated with the first semiconductor chip portions and forming a plural of concave portions between the first and second semiconductor chip portions; forming a plural of convex portions having height which are greater than depth of the concave portions on semiconductor chip mounting members on which the first and second semiconductor chip portions are to be mounted; and dividing the first and second semiconductor chip portions by pressing the concave portions against the convex portions and bonding the first and second semiconductor chip portions on the semiconductor chip mounting members to effect die bonding.
Claim 6
Independent Claim
127 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing first semiconductor chip portions and second semiconductor chip portions having power elements which are associated with the first semiconductor chip portions and forming a plural of concave portions between the first and second semiconductor chip portions; forming a plural of convex portions having height which are greater than depth of the concave portions on semiconductor chip mounting members on which the first and second semiconductor chip portions are to be mounted; and dividing the first and second semiconductor chip portions by pressing the concave portions against the convex portions and bonding the first and second semiconductor chip portions on the semiconductor chip mounting members to effect die bonding.
Claim 7
Independent Claim
142 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing first semiconductor chip portions and second semiconductor chip portions having power elements which are associated with the first semiconductor chip portions and forming a plural of concave portions between the first and second semiconductor chip portions; forming a plural of convex portions having shape which are similar to the shape of the concave portions on semiconductor chip mounting members on which said first and second semiconductor chip portions are to be mounted; and bonding said first and second semiconductor chip portions on the semiconductor chip mounting members so that said convex mounting member portions are received in the concave chip portion and impinging laser beams on the concave chip portion to separate the first and second semiconductor chip portions and effect die bonding.
Claim 8
Independent Claim
142 words
A method of manufacturing a semiconductor integrated circuit device comprising the steps of integrally forming a semiconductor chip containing first semiconductor chip portions and second semiconductor chip portions having power elements which are associated with the first semiconductor chip portions and forming a plural of concave portions between the first and second semiconductor chip portions; forming a plural of convex portions having shape which are similar to the shape of the concave portions on semiconductor chip mounting members on which said first and second semiconductor chip portions are to be mounted; and bonding said first and second semiconductor chip portions on the semiconductor chip mounting members so that said convex mounting member portions are received in the concave chip portion and impinging laser beams on the concave chip portion to separate the first and second semiconductor chip portions and effect die bonding.
References Cited (Backward Citations)
US4797726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-10 | 2001-05-12 | 2001-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-10 | 2005-05-12 | 2005-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-10 | 2009-05-12 | 2009-11-11 | $7700.00 | Window Closed / Lapsed |