US3926682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing solid material having amorphous state therein
Assignee: Hitachi Ltd
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Filing: 1974-10-15
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Granted: 1975-12-16
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Expires: 1994-10-15
Abstract
Abstract A uniformly and perfectly amorphous GaP is obtained by irradiating a GaP body with N ions of 200 KeV, at a current density of 1 Mu A/cm2, by an amount of 5 X 1015/cm2, thereby forming a disordered state of GaP in the body to a depth of about 0.5 Mu m from its surface, and heating said GaP body at 430*C which is higher than a transition temperature of GaP from the disordered state to the amorphous state and lower than a crystallization temperature of GaP, for 10 minutes within an argon gas.
Inventors
- 👤 Toshikazu Shimada
- 👤 Kiichi Komatsubara
- 👤 Susumu Hasegawa
- 👤 Yoshiki Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
H; H10; H10P; H10P95/00; C; C23; C23C; C23C14/00; C23C14/22; C23C14/48; C23C14/58; C23C26/00; C30; C30B; C30B33/00; H10D; H10D99/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
A METHOD FOR PRODUCING A SOLID MATERIAL COMPRISING THE STEPS OF: IRRADIATING A STARTING MATERIAL WITH AT LEAST ONE BEAM SELECTED FROM AMONG IONIC, ATOMIC AND MOLECULAR BEAMS IN EXCESS OF AN AMOUNT TO SATURATE LATTICE DEFECTS IN SAID STARTING MATERIAL AT LEAST PARTIALLY INTO A DISORDERED STATE; AND HEATING SAID STARTING MATERIAL AT A TEMPERATURE HIGHER THAN A TRANSITION TEMPERATURE TO AN AMORPHOUS STATE, BUT LOWER THAN A CRYSTALLIZING TEMPERATURE OF SAID STARTING MATERIAL.
Claim 2
Independent Claim
75 words
A METHOD FOR PRODUCING A SOLID MATERIAL COMPRISING THE STEPS OF: IRRADIATING A STARTING MATERIAL WITH AT LEAST ONE BEAM SELECTED FROM AMONG IONIC, ATOMIC AND MOLECULAR BEAMS IN EXCESS OF AN AMOUNT TO SATURATE LATTICE DEFECTS IN SAID STARTING MATERIAL AT LEAST PARTIALLY INTO A DISORDERED STATE; AND HEATING SAID STARTING MATERIAL AT A TEMPERATURE HIGHER THAN A TRANSITION TEMPERATURE TO AN AMORPHOUS STATE, BUT LOWER THAN A CRYSTALLIZING TEMPERATURE OF SAID STARTING MATERIAL.
Claim 3
Dependent Claim
20 words
A method for producing a solid material according to claim 1, wherein said starting material is irradiated with ionic beam.
Claim 4
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is Si, and said heating is held at a temperature between 490*K and 695*K.
Claim 5
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is Ge, and said heating is held at a temperature between 315*K and 445*K.
Claim 6
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is AlAs, and said heating is held at a temperature between 540*K and 765*K.
Claim 7
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is GaP, and said heating is held at a temperature between 690*K and 980*K.
Claim 8
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is GaAs, and said heating is held at a temperature between 580*K and 825*K.
Claim 9
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is InP, and said heating is held at a temperature between 330*K and 470*K.
Claim 10
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is CdS, and said heating is held at a temperature between 80*K and 115*K.
Claim 11
Dependent Claim
29 words
A method for producing a solid material according to claim 1, wherein said starting material is CdSe, and said heating is held at a temperature between 105*K and 150*K.
References Cited (Backward Citations)
US3736192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |