Patent US1611179A 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 01:24
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.
References Cited (Backward Citations)
US2474312A
Cited
US2606987A
Cited
US3146692A
Cited
US3105136A
Cited
US3136878A
Cited
US3230338A
Cited
US3382564A
Cited
US3478191A
Cited
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 |