US3602985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing semiconductor devices
Assignee: Telefunken Electronic GmbH
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Filing: 1969-10-01
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Granted: 1971-09-07
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Expires: 1989-10-01
Abstract
Abstract A method of producing semiconductor devices comprising securing contacts onto tongues or rungs of contact-making strips, inverting housing members onto the contacts, placing a semiconductor body on each of the contacts and introducing second contacts on tongues or rungs of a contact-making strip into the housing members to connect them to the semiconductor bodies. The device is completed by heat treatment of the housing to attach it to the contacts and parting the tongues or rungs from their contact-making strip.
Inventors
- 👤 Edwin Nosch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:23
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0438; H10W; H10W70/00; H10W70/01; H10W70/04; H10W76/00; H10W76/10; H10W76/12; H10W76/161; H10W95/00; H10W70/40; H10W70/481; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
49 words
A method as defined in claim 1, further comprising closing each said housing while holding said first and second contacts in contact with said semiconductor body and parting off said tongues or rungs carrying said contacts from said contact-making strips for use as at least part of electrode leads.
Claim 2
Dependent Claim
25 words
A method as defined in claim 2, wherein cylindrical wire lengths which draw off heat generated in said semiconductor body are used as said contacts.
Claim 3
Dependent Claim
21 words
A method as defined in claim 3, wherein said cylindrical lengths of wire comprise copper sheathed wire with an iron-nickel core.
Claim 4
Dependent Claim
31 words
A method as defined in claim 3, wherein cylindrical hollow bodies having their internal diameter at least as large as the diameter of the said contacts are used as housing members.
Claim 5
Independent Claim
95 words
A method of producing semiconductor devices comprising the steps of securing first contact to each tongue of a first double comb structure contact-making strip, inverting a housing member over each said contact, placing a semiconductor body on each said contact in each said housing member, securing a second contact to each tongues of a second double comb structure contact-making strip, placing said first and second contact-making strips one over the other so that said second contacts are introduced into an associated one of said housing members to connect said second contacts to said semiconductor bodies.
Claim 6
Dependent Claim
50 words
A method as defined in claim 5, wherein said tongues of said double comb structure contact-making strips are of strip-shaped construction and are widened out in a flat portion at their free ends, said contacts being provided on said flat widened portions leaving the narrower strip-shaped tongues as electrode leads.
Claim 7
Dependent Claim
25 words
A method as defined in claim 7, wherein said contacts are welded on to said flat widened portions of said double comb structure contact-making strips.
Claim 8
Dependent Claim
15 words
A method as defined in claim 8, wherein said housing members consist of glass tube.
Claim 9
Dependent Claim
54 words
A method as defined in claim 9, wherein said first and second double comb structure contact-making strips are heated while assembled in a continuous-heating furnace, to a temperature at which said housing member begins to melt on to said contacts so to cause said housing to surround said semiconductor body in a vacuum-tight manner.
Claim 10
Dependent Claim
29 words
A method as defined in claim 10, wherein said double comb structure contact-making strips consist of gold-plated sheet material selected from the group consisting of iron, nickel and Vacon.
Claim 11
Dependent Claim
18 words
A method as defined in claim 10, wherein said contacts consist of copper-sheathed wire with an iron-nickel core.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |