US3256598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffusion bonding
Assignee: Lockheed Martin Corp
•
Filing: 1963-07-25
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Granted: 1966-06-21
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Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Irvin R Kramer
- 👤 Charles F Burrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:44
CPC Classifications
H; H10; H10P; H10P95/00; B; B23; B23K; B23K11/00; B23K20/00; B23K20/02; B23K20/023; C; C04; C04B; C04B37/00; C04B37/02; C04B37/021; C04B37/023; C04B37/026; H10W; H10W99/00; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2235/658; C04B2235/6581; C04B2235/66; C04B2235/666; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/125; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/345; C04B2237/348; C04B2237/36; C04B2237/365; C04B2237/40; C04B2237/402; C04B2237/403; C04B2237/405; C04B2237/406; C04B2237/407; C04B2237/408; C04B2237/50; C04B2237/61; C04B2237/70; C04B2237/708; C04B2237/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE METHOD OF DIFFUSION BONDING OF SAID FIRST MATERIAL TO A SECOND MATERIAL WHEREIN AT LEAST ONE MATERIAL IS SOLUBLE IN THE OTHER, SAID METHOD COMPRISING THE STEPS OF: FORMING A STACKED ARRAY CONSISTING IN ORDER OF; A FIRST ELECTRODE, AN INSULATIVE BARRIER, ONE OF SAID MATERIALS, SAID OTHER MATERIAL, A SECOND ELECTRODE; EXERTING SUFFICIENT PRESSURE ON SAID STACK TO EFFECT INTIMATE CONTACT BETWEEN THE INDIVIDUAL MEMBERS THEREOF, SUBJECTING SAID PRESSURIZED ARRAY TO AN ELEVATED TEMPERATURE FOR AN EXTENDED TIME PERIOD WHILE A DIRECT CURRENT POTENTIAL DIFFERENCE IS APPLIED ACROSS SAID ELECTRODES OF SUFFICIENT MAGNITUDE TO EFFECT DIFFUSION OF IONS FROM ONE OF SAID MATERIALS TO THE OTHER MATERIAL TO PRODUCE A GOOD MECHANICAL BOND THEREBETWEEN BUT OF INSUFFICIENT MAGNITUDE TO EFFECT EXTENSIVE CURRENT FLOW BETWEEN SAID ELECTRODES.
Claim 2
Independent Claim
128 words
THE METHOD OF DIFFUSION BONDING OF SAID FIRST MATERIAL TO A SECOND MATERIAL WHEREIN AT LEAST ONE MATERIAL IS SOLUBLE IN THE OTHER, SAID METHOD COMPRISING THE STEPS OF: FORMING A STACKED ARRAY CONSISTING IN ORDER OF; A FIRST ELECTRODE, AN INSULATIVE BARRIER, ONE OF SAID MATERIALS, SAID OTHER MATERIAL, A SECOND ELECTRODE; EXERTING SUFFICIENT PRESSURE ON SAID STACK TO EFFECT INTIMATE CONTACT BETWEEN THE INDIVIDUAL MEMBERS THEREOF, SUBJECTING SAID PRESSURIZED ARRAY TO AN ELEVATED TEMPERATURE FOR AN EXTENDED TIME PERIOD WHILE A DIRECT CURRENT POTENTIAL DIFFERENCE IS APPLIED ACROSS SAID ELECTRODES OF SUFFICIENT MAGNITUDE TO EFFECT DIFFUSION OF IONS FROM ONE OF SAID MATERIALS TO THE OTHER MATERIAL TO PRODUCE A GOOD MECHANICAL BOND THEREBETWEEN BUT OF INSUFFICIENT MAGNITUDE TO EFFECT EXTENSIVE CURRENT FLOW BETWEEN SAID ELECTRODES.
References Cited (Backward Citations)
US3200491A
Cited
US3158732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |