Patent US2995949A successfully refreshed from Google Patents.
Patent US3576969A successfully refreshed from Google Patents.
US3576969A
Expired / Lapsed
US
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Solder reflow device
Assignee: International Business Machines Corp
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Filing: 1969-09-02
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Granted: 1971-05-04
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Expires: 1989-09-02
Abstract
Abstract Disclosed is a device for simultaneously soldering numerous integrated circuit chip leads to a circuit board. The device is characterized by having a heating tip made of refractory, electrically insulative, thermally conductive, material. Fused to this tip is a coat of penetrating metallic paste. The paste is disposed on the tip in an electrically continuous path. Heating is accomplished by passing current through this metallic paste path.
Inventors
- 👤 Rohinton J Surty
- 👤 Conrad Trollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:00
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0446; B; B23; B23K; B23K3/00; B23K3/04; B23K3/047; B23K3/0471; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3421; H05K3/3494; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121; Y10T29/49124; Y10T29/4913; Y10T29/49144; Y10T29/49155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A solder reflow device for bonding an element having connector leads to a member comprising: a heating tip having a recess therein for receiving said element; said heating tip having slots for receiving said leads; said heating tip being made of refractory, thermally conductive electrically insulative material; metallic paste means fused to and diffused into a portion of a surface of said heating tip in an electrically continuous path; means for conducting electrical energy to said paste means whereby said paste heats said tip and said tip heats said leads.
Claim 2
Dependent Claim
90 words
A solder reflow device for bonding an element having connector leads to a member comprising: a heating tip having a recess therein for receiving said element; said heating tip having slots for receiving said leads; said heating tip being made of refractory, thermally conductive electrically insulative material; metallic paste means fused to and diffused into a portion of a surface of said heating tip in an electrically continuous path; means for conducting electrical energy to said paste means whereby said paste heats said tip and said tip heats said leads.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |