US4020543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-piece capillary tip bonding tool
Assignee: Sola Basic Industries Inc
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Filing: 1975-06-26
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Granted: 1977-05-03
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Expires: 1995-06-26
Abstract
Abstract A lead wire capillary bonding tool formed from a rod with a core, the rod having a shaped end upon which tungsten carbide or refractory metal is vapor deposited and then the core removed.
Inventors
- 👤 Matheus D. Pennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:51
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/002; B23K20/004; B23K20/005; H; H10; H10W; H10W72/00; H10W72/071; H10W72/0711; H10W72/07141; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/4998; Y10T29/49982; Y10T29/49986
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
94 words
The method of making a lead wire capillary bonding tool having a wire capillary passage therein comprising the steps of filling a tubular metal tool shank member with a removable core material, shaping one end of said tubular metal tool shank member with the core therein to provide a contour of the interior of a capillary tip having a taper and a small projection the size of the wire capillary passage, vapor depositing refractory metal without cementitious binder on the shaped capillary contour including a portion of the shank, and then removing said core.
Claim 2
Independent Claim
94 words
The method of making a lead wire capillary bonding tool having a wire capillary passage therein comprising the steps of filling a tubular metal tool shank member with a removable core material, shaping one end of said tubular metal tool shank member with the core therein to provide a contour of the interior of a capillary tip having a taper and a small projection the size of the wire capillary passage, vapor depositing refractory metal without cementitious binder on the shaped capillary contour including a portion of the shank, and then removing said core.
Claim 3
Dependent Claim
22 words
The method of making a lead wire capillary bonding tool as claimed in claim 1 wherein the refractory metal is tungsten carbide.
Claim 4
Dependent Claim
25 words
The method of making a lead wire capillary bonding tool as claimed in claim 2 wherein the tubular metal tool shank member is stainless steel.
Claim 5
Dependent Claim
25 words
The method of making a lead wire capillary bonding tool as claimed in claim 1 wherein the tubular metal tool shank member is stainless steel.
Claim 6
Dependent Claim
33 words
The method of making a lead wire capillary bonding tool as claimed in claim 1 wherein the end of the vapor deposited refractory metal is cut off to open the capillary passage therethrough.
References Cited (Backward Citations)
US3472443A
Cited
US3917148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |