Patent US5395255A successfully refreshed from Google Patents.
US5395255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
IC socket
Assignee: Yamaichi Electronics Co Ltd
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Filing: 1994-06-24
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Granted: 1995-03-07
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Expires: 2014-06-24
Abstract
Abstract An IC socket includes a socket board having a plurality of contacts, and an IC platform vertically movably disposed on the socket board and adapted to support thereon an IC having a plurality of leads projecting sidewards from a body thereof so as to be contacted with the contacts. Inclined wall surfaces are formed at both ends of a row of the contacts and are adapted to guide the leads onto vertical wall surfaces formed at lower ends of the inclined wall surfaces. To this end, the contacts at the ends of the row are guided onto the vertical wall surfaces by the inclined wall surfaces when the IC platform with the IC body supported thereon is lowered, so that the leads are brought into contact with the contacts. The IC socket further includes a plurality of projections formed on an upper surface of the IC platform and adapted to support a lower surface of the IC body such that the lower surface of the IC body floats above the upper surface of the IC platform, such that the leads are not supported on a marginal wall projecting upwardly from a marginal portion of the IC platform, and such that a ventilation space or gap is formed between the lower surface of the IC body and the upper surface of the IC platform.
Inventors
- 👤 Yuji Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:17
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1015; H05K7/1023; Y; Y10; Y10S; Y10S439/00; Y10S439/948
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
297 words
An apparatus comprising: a socket board having a plurality of contacts arranged in rows; an IC platform vertically movably mounted on said socket board and adapted to support an IC having an IC body with a plurality of leads arranged in rows and projecting sidewardly therefrom so as to engage against said plurality of contacts, respectively; wherein said socket board includes inclined wall surfaces at opposing ends of said rows of contacts, respectively, and vertical wall surfaces respectively extending downwardly from lower ends of said inclined wall surfaces, said inclined wall surfaces comprising means for guiding outermost leads of the rows of leads onto said vertical wall surfaces when the IC is moved downwardly onto said IC platform in order to position the rows of leads between respectively opposing ones of said vertical wall surfaces and align the leads with said contacts, respectively; wherein a marginal wall projects upwardly from a periphery of said IC platform; and wherein a plurality of projections project upwardly from an upper surface of said IC platform and constitute a means for supporting the IC body such that a lower surface thereof is spaced above the upper surface of said IC platform, a gap is formed between said marginal wall and side walls of the IC body, and the leads of the IC are spaced above a top of said marginal wall, said projections being spaced apart from one another and being spaced inwardly from said marginal wall so as to further constitute a ventilation means for allowing air to flow from the space formed between said upper surface of said IC platform and the lower surface of the IC body, between said projections, and upwardly through the gap formed between said marginal wall and the side walls of the IC body.
Claim 2
Independent Claim
297 words
An apparatus comprising: a socket board having a plurality of contacts arranged in rows; an IC platform vertically movably mounted on said socket board and adapted to support an IC having an IC body with a plurality of leads arranged in rows and projecting sidewardly therefrom so as to engage against said plurality of contacts, respectively; wherein said socket board includes inclined wall surfaces at opposing ends of said rows of contacts, respectively, and vertical wall surfaces respectively extending downwardly from lower ends of said inclined wall surfaces, said inclined wall surfaces comprising means for guiding outermost leads of the rows of leads onto said vertical wall surfaces when the IC is moved downwardly onto said IC platform in order to position the rows of leads between respectively opposing ones of said vertical wall surfaces and align the leads with said contacts, respectively; wherein a marginal wall projects upwardly from a periphery of said IC platform; and wherein a plurality of projections project upwardly from an upper surface of said IC platform and constitute a means for supporting the IC body such that a lower surface thereof is spaced above the upper surface of said IC platform, a gap is formed between said marginal wall and side walls of the IC body, and the leads of the IC are spaced above a top of said marginal wall, said projections being spaced apart from one another and being spaced inwardly from said marginal wall so as to further constitute a ventilation means for allowing air to flow from the space formed between said upper surface of said IC platform and the lower surface of the IC body, between said projections, and upwardly through the gap formed between said marginal wall and the side walls of the IC body.
Claim 3
Dependent Claim
58 words
An apparatus as recited in claim 1, wherein said IC platform is substantially rectangular so as to have four sides; and each of said projections projects upwardly from said upper surface of said IC platform at a location spaced inwardly from a periphery of said IC platform and at an intermediate position of one of said four sides.
Claim 4
Dependent Claim
19 words
An apparatus as recited in claim 2, wherein each of said projections is substantially circular in horizontal cross section.
Claim 5
Independent Claim
300 words
An apparatus comprising: a socket board having a plurality of contacts arranged in rows; an IC platform vertically movably mounted on said socket board; an IC adapted to be supported on said IC platform and having an IC body with a plurality of leads arranged in rows and projecting sidewardly therefrom for engaging against said plurality of contacts, respectively; wherein said socket board includes inclined wall surfaces at opposing ends of said rows of contacts, respectively, and vertical wall surfaces respectively extending downwardly from lower ends of said inclined wall surfaces, said inclined wall surfaces comprising means for guiding outermost leads of said rows of leads onto said vertical wall surfaces when said IC is moved downwardly onto said IC platform in order to position said rows of leads between respectively opposing ones of said vertical wall surfaces and align said leads with said contacts, respectively; wherein a marginal wall projects upwardly from a periphery of said IC platform; and wherein a plurality of projections project upwardly from an upper surface of said IC platform and constitute a means for supporting said IC body such that a lower surface thereof is spaced above the upper surface of said IC platform, a gap is formed between said marginal wall and side walls of said IC body, and said leads of said IC are spaced above a top of said marginal wall, said projections being spaced apart from one another and being spaced inwardly from said marginal wall so as to further constitute a ventilation means for allowing air to flow from the space formed between said upper surface of said IC platform and the lower surface of said IC body, between said projections, and upwardly through said gap formed between said marginal wall and said side walls of said IC body.
Claim 6
Independent Claim
300 words
An apparatus comprising: a socket board having a plurality of contacts arranged in rows; an IC platform vertically movably mounted on said socket board; an IC adapted to be supported on said IC platform and having an IC body with a plurality of leads arranged in rows and projecting sidewardly therefrom for engaging against said plurality of contacts, respectively; wherein said socket board includes inclined wall surfaces at opposing ends of said rows of contacts, respectively, and vertical wall surfaces respectively extending downwardly from lower ends of said inclined wall surfaces, said inclined wall surfaces comprising means for guiding outermost leads of said rows of leads onto said vertical wall surfaces when said IC is moved downwardly onto said IC platform in order to position said rows of leads between respectively opposing ones of said vertical wall surfaces and align said leads with said contacts, respectively; wherein a marginal wall projects upwardly from a periphery of said IC platform; and wherein a plurality of projections project upwardly from an upper surface of said IC platform and constitute a means for supporting said IC body such that a lower surface thereof is spaced above the upper surface of said IC platform, a gap is formed between said marginal wall and side walls of said IC body, and said leads of said IC are spaced above a top of said marginal wall, said projections being spaced apart from one another and being spaced inwardly from said marginal wall so as to further constitute a ventilation means for allowing air to flow from the space formed between said upper surface of said IC platform and the lower surface of said IC body, between said projections, and upwardly through said gap formed between said marginal wall and said side walls of said IC body.
Claim 7
Dependent Claim
58 words
An apparatus as recited in claim 4, wherein said IC platform is substantially rectangular so as to have four sides; and each of said projections projects upwardly from said upper surface of said IC platform at a location spaced inwardly from a periphery of said IC platform and at an intermediate position of one of said four sides.
Claim 8
Dependent Claim
19 words
An apparatus as recited in claim 5, wherein each of said projections is substantially circular in horizontal cross section.
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) | 1998-03-06 | 1998-09-05 | 1999-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-06 | 2002-09-05 | 2003-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-06 | 2006-09-05 | 2007-03-07 | $7700.00 | Window Closed / Lapsed |