US4677397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quartz crystal oscillator with crystal supported on spring
Assignee: Matsushima Kogyo KK
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Filing: 1986-03-07
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Granted: 1987-06-30
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Expires: 2006-03-07
Abstract
Abstract A quartz crystal oscillator having a resonator leaf with electrode film for electrical conduction. The oscillator includes a semiconductor element which oscillates the resonator leaf. Lead terminals have a first end which are integrally molded to the semiconductor element by a resin and second ends which support the resonator leaf.
Inventors
- 👤 Iwao Nakayama
- 👤 Masatoshi Kobayashi
- 👤 Kazushige Ichinose
- 👤 Kenji Nasuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:35
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
149 words
A quartz crystal oscillator comprising a resonator leaf having electrode film means for electrical conduction, semiconductor element means for oscillating said resonator leaf, and flat lead terminal means for supporting said resonator leaf and for electrically coupling said semiconductor element means to said resonator leaf, said flat lead terminal means having a first end which supports said resonator leaf and a second end coupled to said semiconductor element means and integrally molded thereto by a resin, the width of said flat lead terminal means being greater at said second end than at said first end thereof, and a stem formed from a metal material supporting said semiconductor element means, said semiconductor element means and said resonator leaf being arranged so as not to overlap with one another in the vertical direction but essentially to be in the same horizontal plane, and adhesive means for mounting said resin to stem.
Claim 2
Dependent Claim
149 words
A quartz crystal oscillator comprising a resonator leaf having electrode film means for electrical conduction, semiconductor element means for oscillating said resonator leaf, and flat lead terminal means for supporting said resonator leaf and for electrically coupling said semiconductor element means to said resonator leaf, said flat lead terminal means having a first end which supports said resonator leaf and a second end coupled to said semiconductor element means and integrally molded thereto by a resin, the width of said flat lead terminal means being greater at said second end than at said first end thereof, and a stem formed from a metal material supporting said semiconductor element means, said semiconductor element means and said resonator leaf being arranged so as not to overlap with one another in the vertical direction but essentially to be in the same horizontal plane, and adhesive means for mounting said resin to stem.
Claim 3
Dependent Claim
27 words
The quartz crystal oscillator as claimed in claim 1, wherein said lead terminal means is spaced above said stem where integrally molded to said semiconductor element means.
Claim 4
Dependent Claim
59 words
The quartz crystal oscillator as claimed in claim 2, wherein said lead terminal means includes a first lead terminal and a second lead terminal spaced from said first lead terminal, said first and second lead terminals each having a first end integrally molded to said semiconductor element means by said resin and second ends which support said resonator leaf.
Claim 5
Dependent Claim
24 words
The quartz crystal oscillator as claimed in claim 1, wherein said lead terminal means is formed from a leaf spring of substantially constant thickness.
Claim 6
Dependent Claim
64 words
The quartz crystal oscillator as claimed in claim 4, wherein said lead terminal means includes a first end integrally molded by resin to said semiconductor element means and a second end which is bent to be essentially perpendicular to the plane of said leaf spring, said second end of said lead terminal means having a slit, said resonator leaf being supported by said slit.
Claim 7
Dependent Claim
105 words
A quartz crystal oscillator comprising a stem, a resin affixed to said stem by an adhesive, semiconductor element means for producing an oscillating signal supported in said resin, first and second spaced lead terminals each having a first end integrally molded in said resin and electrically coupled to said semiconductor element means and a second end extending horizontally out of said resin, and a resonator leaf supported on said second ends of said first and second lead terminals, said resonator leaf not overlying said semiconductor element means in top plan view, said resonator leaf cooperating with said semiconductor element means to produce said oscillating signal.
Claim 8
Dependent Claim
105 words
A quartz crystal oscillator comprising a stem, a resin affixed to said stem by an adhesive, semiconductor element means for producing an oscillating signal supported in said resin, first and second spaced lead terminals each having a first end integrally molded in said resin and electrically coupled to said semiconductor element means and a second end extending horizontally out of said resin, and a resonator leaf supported on said second ends of said first and second lead terminals, said resonator leaf not overlying said semiconductor element means in top plan view, said resonator leaf cooperating with said semiconductor element means to produce said oscillating signal.
Claim 9
Dependent Claim
31 words
The quartz crystal oscillator as claimed in claim 6, wherein said first and second lead terminals are electrically coupled to said semiconductor element means respectively by first and second Au wires.
Claim 10
Dependent Claim
21 words
The quartz crystal oscillator as claimed in claim 6, wherein said first and second lead terminals are spaced above said stem.
Claim 11
Dependent Claim
27 words
The quartz crystal oscillator as claimed in claim 6, wherein said resonator leaf is bonded to said first and second lead terminals by an electrically conductive adhesive.
Claim 12
Dependent Claim
32 words
The quartz crystal oscillator as claimed in claim 6, wherein said second ends of said first and second lead terminals each include a slit, said resonator leaf being supported in said slits.
Claim 13
Dependent Claim
33 words
The quartz crystal oscillator as claimed in claim 6, wherein said second ends of said first and second lead terminals are narrower than said first ends of said first and second lead terminals.
References Cited (Backward Citations)
JPS51886A
Cited
US4329613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |