US4420652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed package
Assignee: Seikosha KK
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Filing: 1981-08-28
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Granted: 1983-12-13
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Expires: 2001-08-28
Abstract
Abstract A shell of a hermetically sealed package has a through hole and a circuit board is inserted and fixed hermetically into the through hole, and a can is fixed hermetically to the shell. The circuit board consists of a sealed part which is sealed hermetically by the hermetically sealed package, a fixed part to which the shell is fixed, and a projecting part which projects out from the hermetically sealed package. As the circuit pattern extends from the sealed part through the fixed part to the projecting part, it is not necessary to use terminal pins and instead a large number of external lead electrodes are taken out from the hermetically sealed package. An integrated-circuit chip or the like which is sealed by the hermetically sealed package can be shielded from electromagnetic influence by the metallic shell and the metallic can.
Inventors
- 👤 Hitoshi Ikeno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:26
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/161; G; G04; G04G; G04G17/00; H10W90/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A hermetically sealed package comprising: a shell having a through hole; a circuit board consisting of a sealed part, a fixed part and a projecting part, and having a circuit pattern extending from said sealed part through said fixed part to said projecting part on at least one surface thereof, and being inserted into said through hole; a non-conductive fixing material fixing hermetically said fixed part of said circuit board into said through hole of said shell; and a can fixed hermetically to said shell, and sealing said sealed part of said circuit board together with said shell.
Claim 2
Dependent Claim
98 words
A hermetically sealed package comprising: a shell having a through hole; a circuit board consisting of a sealed part, a fixed part and a projecting part, and having a circuit pattern extending from said sealed part through said fixed part to said projecting part on at least one surface thereof, and being inserted into said through hole; a non-conductive fixing material fixing hermetically said fixed part of said circuit board into said through hole of said shell; and a can fixed hermetically to said shell, and sealing said sealed part of said circuit board together with said shell.
Claim 3
Dependent Claim
149 words
A hermetically sealed package comprising: a metallic shell having a through hole; a circuit board consisting of a sealed part, a fixed part and a projecting part, and having a circuit pattern extending from said sealed part through said fixed part to said projecting part on at least one surface thereof, and being inserted into said through hole; at least one insulating film whose width is larger than the width of said fixed part and formed on said circuit pattern to correspond with said fixed part; metallized films formed on said insulating film or on said fixed part, and formed around said circuit board; a conductive fixing material fixing hermetically said metallized films on said fixed part of said circuit board into said through hole of said metallic shell; and a metallic can fixed hermetically to said metallic shell, and sealing said sealed part together with said metallic shell.
Claim 4
Dependent Claim
149 words
A hermetically sealed package comprising: a metallic shell having a through hole; a circuit board consisting of a sealed part, a fixed part and a projecting part, and having a circuit pattern extending from said sealed part through said fixed part to said projecting part on at least one surface thereof, and being inserted into said through hole; at least one insulating film whose width is larger than the width of said fixed part and formed on said circuit pattern to correspond with said fixed part; metallized films formed on said insulating film or on said fixed part, and formed around said circuit board; a conductive fixing material fixing hermetically said metallized films on said fixed part of said circuit board into said through hole of said metallic shell; and a metallic can fixed hermetically to said metallic shell, and sealing said sealed part together with said metallic shell.
References Cited (Backward Citations)
US3339117A
Cited
US3828210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |