US4741787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for packaging semiconductor device and the like
Assignee: Seiei Kohsan Co Ltd
•
Filing: 1986-02-27
•
Granted: 1988-05-03
•
Expires: 2006-02-27
Abstract
Abstract The present invention relates to a method of and an apparatus for packaging a semiconductor device and the like to package the semiconductor device and the like completely associated with resin. A process for packaging a semiconductor device and the like according to the present invention comprises the steps of providing a tablet of thermoplastic resin such as epoxy resin, weighing the tablet for upper and lower packages, preheating the upper and lower packages, then compression molding the packages in a package shape, coating the opposed surfaces to be bonded of the upper and lower packages with a fusible bonding agent such as thermoplastic resin and/or bonding agent, then interposing a chip of a semiconductor device and the like between the upper package and the lower package, heating the upper and lower packages while supplying nitrogen gas in a vacuum molding machine, bonding the upper and lower packages, and conducting an antioxidation of a metal portion.
Inventors
- 👤 Katsuo Shimizu
- 👤 Saburo Narisawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:06
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0438; H10W; H10W74/00; H10W74/01; H10W74/016; B; B29; B29K; B29K2101/00; B29K2101/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
A process for packaging a semiconductor device comprising the steps of: providing a tablet of curable resin, weighing the tablet for upper and lower packages, preheating the upper and lower packages, compression molding the packages in a package shape, coating the opposed surfaces to be bonded of the upper and lower packages with a fusible bonding agent, interposing a chip of a semiconductor device between the upper package and the lower package, heating the upper and lower packages while supplying nitrogen gas in a vacuum molding machine, bonding the upper and lower packages, and conducting an antioxidation of a metal portion.
Claim 2
Dependent Claim
101 words
A process for packaging a semiconductor device comprising the steps of: providing a tablet of curable resin, weighing the tablet for upper and lower packages, preheating the upper and lower packages, compression molding the packages in a package shape, coating the opposed surfaces to be bonded of the upper and lower packages with a fusible bonding agent, interposing a chip of a semiconductor device between the upper package and the lower package, heating the upper and lower packages while supplying nitrogen gas in a vacuum molding machine, bonding the upper and lower packages, and conducting an antioxidation of a metal portion.
Claim 3
Dependent Claim
14 words
A process according to claim 1 wherein said curable resin is an epoxy resin.
Claim 4
Dependent Claim
15 words
A process according to claim 1 wherein said fusible bonding agent is a thermoplastic resin.
Claim 5
Independent Claim
148 words
An apparatus for packaging a semiconductor device and the like comprising: a lead frame supplying unit for pushing out lead frames aligned longitudinally and contained in a magazine one by one into a loader, loader for conveying the lead frame into a molding unit, a molding unit connected with the loader and having a molding head for attracting a supplied tablet, turning the tablet at 90° oppositely, and approaching from both sides of the lead frame to package the tablet, a pair of right and left tablet containing units for laminating, containing a number of tablets of curable resin in the amount corresponding to one molding, lifting and supplying the tablets, a tablet supplying unit for attracting the tablet from the tablet containing unit and supplying the tablet to the molding head of the molding unit, and an unloader for recovering the packaged lead frame into the magazine.
Claim 6
Independent Claim
148 words
An apparatus for packaging a semiconductor device and the like comprising: a lead frame supplying unit for pushing out lead frames aligned longitudinally and contained in a magazine one by one into a loader, loader for conveying the lead frame into a molding unit, a molding unit connected with the loader and having a molding head for attracting a supplied tablet, turning the tablet at 90° oppositely, and approaching from both sides of the lead frame to package the tablet, a pair of right and left tablet containing units for laminating, containing a number of tablets of curable resin in the amount corresponding to one molding, lifting and supplying the tablets, a tablet supplying unit for attracting the tablet from the tablet containing unit and supplying the tablet to the molding head of the molding unit, and an unloader for recovering the packaged lead frame into the magazine.
Claim 7
Dependent Claim
39 words
The apparatus for packaging a semiconductor device and the like as defined in claim 4, wherein a dispenser for coating a fusible bonding agent on the bonding surfaces of the package is disposed at each side of said unloader.
Claim 8
Dependent Claim
26 words
The apparatus for packaging a semiconductor device as defined in claim 4, wherein said molding unit comprises means to simultaneously mold a plurality of semiconductor devices.
Claim 9
Dependent Claim
41 words
The apparatus for packaging a semiconductor device and the like as defined in claim 4, wherein a preheater is disposed between said tablet containing units and said molding unit to preheat the tablet before supplying the tablet to said molding unit.
Claim 10
Dependent Claim
27 words
The apparatus for packaging a semiconductor device and the like as defined in claim 7, wherein said preheater comprises a compression molding means together with preheating means.
Claim 11
Independent Claim
116 words
An apparatus for packaging a semiconductor device, comprising: means for providing a tablet of curable resin, means for weighing the tablet for upper and lower packages, means for preheating the upper and lower packages, means for compression molding the packages in a package shape, means for coating the opposed surfaces to be bonded of the upper and lower packages with a fusible bonding agent, means for interposing a chip of a semiconductor device between the upper package and the lower package, means for heating the upper and lower packages while supplying nitrogen gas in a vacuum molding machine, means for bonding the upper and lower packages, and means for conducting an anti-oxidation of a metal portion.
Claim 12
Independent Claim
116 words
An apparatus for packaging a semiconductor device, comprising: means for providing a tablet of curable resin, means for weighing the tablet for upper and lower packages, means for preheating the upper and lower packages, means for compression molding the packages in a package shape, means for coating the opposed surfaces to be bonded of the upper and lower packages with a fusible bonding agent, means for interposing a chip of a semiconductor device between the upper package and the lower package, means for heating the upper and lower packages while supplying nitrogen gas in a vacuum molding machine, means for bonding the upper and lower packages, and means for conducting an anti-oxidation of a metal portion.
References Cited (Backward Citations)
US4480975A
Cited
JPS59172241A
Cited
JPS59202653A
Cited
JPS5980947A
Cited
JPS60224234A
Cited
JPS612348A
Cited
JPS60149156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |