US4623208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leadless chip carrier socket
Assignee: Fleet National Bank
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Filing: 1985-04-03
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Granted: 1986-11-18
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Expires: 2005-04-03
Abstract
Abstract A leadless chip carrier socket which includes conductive contacts which electrically contact the carrier. The contacts include an outwardly extending cantilevered projection to allow the contacts to be shifted outwardly on downward engaging movement of the top of the socket to allow insertion or removal of the carrier.
Inventors
- 👤 Joseph A. Kerul
- 👤 Donald E. Ralstin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:55
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1053; H05K7/1076
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
A socket for a leadless chip carrier, said socket including a base member having a central opening therein, a plurality of conductive resilient contacts for engaging conductive pads on said carrier, each contact anchored in said base member and including an upwardly extending part, said contacts positioned on at least two side edges of said base member opening, and constituting opposing clamp means for engaging said carrier within said socket, the improvement wherein each contact includes a cantilevered part projecting from its upwardly extending part outwardly of said base member opening, and a movable top overlying said base member, said top including an abutment means in contact with each said contact cantilevered part for moving and flexing said contacts in an outward direction relative to said base member opening upon movement of the top in a substantially straight line downward direction to space said contacts from said carrier to allow insertion thereof into the socket.
Claim 2
Dependent Claim
155 words
A socket for a leadless chip carrier, said socket including a base member having a central opening therein, a plurality of conductive resilient contacts for engaging conductive pads on said carrier, each contact anchored in said base member and including an upwardly extending part, said contacts positioned on at least two side edges of said base member opening, and constituting opposing clamp means for engaging said carrier within said socket, the improvement wherein each contact includes a cantilevered part projecting from its upwardly extending part outwardly of said base member opening, and a movable top overlying said base member, said top including an abutment means in contact with each said contact cantilevered part for moving and flexing said contacts in an outward direction relative to said base member opening upon movement of the top in a substantially straight line downward direction to space said contacts from said carrier to allow insertion thereof into the socket.
Claim 3
Dependent Claim
19 words
The socket of claim 1 wherein said leads are positioned at each side of said base support central opening.
Claim 4
Dependent Claim
45 words
The socket of claim 1 wherein said base support includes finger latches extending toward said top, each finger latch including a tab, said top including a shoulder for accepting said tabs and securing said finger latches whereby said top is secured to said base support.
Claim 5
Dependent Claim
72 words
The socket of claim 1 wherein each contact includes a lead anchored in said base member, said contact upwardly extending part including an integral curved neck extending from said contact lead, and a head integrally formed atop said neck having inner and outer edges, said cantilevered platform projecting outwardly from said head outer edge, said head inner edge being bevelled and terminating in a lower chin part offset from said contact neck.
Claim 6
Dependent Claim
13 words
The socket of claim 1 wherein said top is of a one-piece construction.
Claim 7
Dependent Claim
25 words
The socket of claim 5 wherein said abutment means is an abutment part extending from an outer peripheral edge of said top toward said base.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |