US5107073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing for containing a fragile element such as a logic circuit
Assignee: STMicroelectronics SA
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Filing: 1988-12-14
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Granted: 1992-04-21
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Expires: 2008-12-14
Abstract
Abstract A housing designed to contain a logic circuit (15) comprising two shells (11a, 11b) each including a welding area (17a, 17b) having an appropriate geometry permitting ultrasonic welding, such that when both shells are assembled before a welding phase, they are shifted along a vertical axis (20). The supporting plate (13) comprises a mounting ear (23) while the shells comprise a receptacle (33a, 33b). During the welding phase, there is no concomitant contact between any of the upper face (26) and lower face (27) of the ear (23) and the corresponding bearing faces (34a, 34b) of the receptacles, owing to a shift (21). The shift is reduced and the concomitant contact takes place between the bearing faces (34a, 34b) of the receptacles and each of the upper and lower faces (26, 27) of the ear (23) only when the welding phase is completed.
Inventors
- 👤 Francis Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:39
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C65/00; B29C65/02; B29C65/08; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/124; B29C66/1244; B29C66/12449; B29C66/302; B29C66/3022; B29C66/30223; B29C66/90; B29C66/95; B29C66/951; B29C66/9516; G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07743; H; H10; H10W; H10W95/00; B29C66/70; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29L; B29L2017/00; B29L2031/00; B29L2031/34; B29L2031/3425
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
146 words
A housing, suitable for containing at least one fragile element such as a logic circuit, comprising: two shells assembled by ultrasonic welding, each shell comprising at least one welding area having a form permitting ultrasonic welding and being such that when both shells are assembled before welding a shift directed along a vertical axis, separates the shells; and at least one supporting plate for supporting a fragile element, said supporting plate comprising at least one mounting portion, wherein at least one of the shells comprises a receptacle for said mounting portion of the corresponding shell, said receptacle and said mounting portion cooperating so that a movement of the supporting plate along transverse and axial axes is limited to respective transverse and axial clearances and movement of the supporting plate of said two shells after welding along te vertical axis is limited to a vertical clearance (JV).
Claim 2
Dependent Claim
146 words
A housing, suitable for containing at least one fragile element such as a logic circuit, comprising: two shells assembled by ultrasonic welding, each shell comprising at least one welding area having a form permitting ultrasonic welding and being such that when both shells are assembled before welding a shift directed along a vertical axis, separates the shells; and at least one supporting plate for supporting a fragile element, said supporting plate comprising at least one mounting portion, wherein at least one of the shells comprises a receptacle for said mounting portion of the corresponding shell, said receptacle and said mounting portion cooperating so that a movement of the supporting plate along transverse and axial axes is limited to respective transverse and axial clearances and movement of the supporting plate of said two shells after welding along te vertical axis is limited to a vertical clearance (JV).
Claim 3
Dependent Claim
25 words
A housing according to claim 1, wherein; at least one of said transverse and axial clearances is reduced to zero by said assembly and welding.
Claim 4
Dependent Claim
100 words
A housing according to claim 1, wherein: the mounting portion comprises a substantially parallelpipedic mounting ear extending in a transverse-axial plane, the receptacle has a similar parallelpipedic shape, the relative sizes of the supporting plate, the mounting ear and the receptacle being such that the height of the ear is not greater than the total height of the receptacle once the housing is assembled and welded, the ear comprising on a transverse end adjacent the welding area a lateral face positioned in an axial-vertical plane with no contact possible between said lateral face and a corresponding face of the receptacle.
Claim 5
Dependent Claim
96 words
A housing according to claim 1, wherein: a supporting plate is engaged in at least one notch in at least one of said shells, two mounting portions being provided, each mounting portion being associated with an end lateral face of a supporting plate, and said at least one notch comprises two corresponding lateral faces, the relative size of the notch and of the supporting plate being such that contact is prevented between said notch and said supporting plate, the end lateral faces of the supporting plate being denied simultaneous contact with corresponding faces of the notch.
Claim 6
Dependent Claim
17 words
A housing according to claim 1, wherein: the mounting portion comprises a selected number of rounded edges.
Claim 7
Dependent Claim
32 words
A housing according to claim 1, wherein: the shells and the mounting portion are manufactured from respective materials not liable to become amalgamated during ultrasonic welding of said at least two shells.
References Cited (Backward Citations)
US4141400A
Cited
US4450024A
Cited
US4617216A
Cited
US4589547A
Cited
US4758689A
Cited
EP0233649A2
Cited
US4918299A
Cited
US4852736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |