US4375271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering method for electric and or electronic component
Assignee: Sony Group Corp
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Filing: 1981-07-28
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Granted: 1983-03-01
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Expires: 2001-07-28
Abstract
Abstract A soldering method comprises forming bubbles by blowing gas into a pool of molten solder, and striking the bubbles against a printed circuit board with electric and or electronic components temporarily fixed thereto to solder them to each other.
Inventors
- 👤 Katsuhiko Tsuchikura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:18
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/3468; B; B23; B23K; B23K1/00; B23K1/08; H05K2203/00; H05K2203/08; H05K2203/081; H05K3/341; H05K3/3415
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A soldering method comprising conveying printed circuit boards with electric and or electronic components temporarily fixed thereto along the top of a pool of molten solder, generating bubbles by blowing gas into the molten solder, the bubbles rapidly rising in the molten solder toward its top and striking the rising bubbles against components and the board to achieve soldering of the components to the board.
Claim 2
Dependent Claim
65 words
A soldering method comprising conveying printed circuit boards with electric and or electronic components temporarily fixed thereto along the top of a pool of molten solder, generating bubbles by blowing gas into the molten solder, the bubbles rapidly rising in the molten solder toward its top and striking the rising bubbles against components and the board to achieve soldering of the components to the board.
Claim 3
Dependent Claim
21 words
A soldering method as claimed in claim 1 wherein said bubbles are generated by blowing inert gas into the molten solder.
Claim 4
Dependent Claim
20 words
A soldering method as claimed in claim 1 wherein said bubbles are generated by blowing air into the molten solder.
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) | 1986-02-28 | 1986-08-30 | 1987-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-28 | 1990-08-30 | 1991-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-28 | 1994-08-30 | 1995-03-01 | $7700.00 | Window Closed / Lapsed |