Protective coatings for optical devices comprising Langmuir-Blod

Details Protective coatings for optical devices comprising Langmuir-Blod Protective coatings for optical devices comprising Langmuir-Blod

1989-10-02

1990-10-16

Healy, Brian

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

350 9611, 350 9612, 350 9634, 427162, 372 49, 528353, 4284735, 525436, G02B 626, B05D 506, C08G 6926, B32B 2700

Patent

active

049629859

ABSTRACT:
A semiconductor optical device, such as a photodetector or a semiconductor laser, is sealed by a Langmuir-Blodgett film that intercepts the optical path extending from the device. The film is less than one-thirtieth of a wavelength at the operating optical frequency, which precludes interference with transmitted light waves.

REFERENCES:
patent: 4536450 (1985-08-01), Garito
patent: 4659177 (1987-04-01), Choe et al.
patent: 4696838 (1987-09-01), Miyata et al.
patent: 4728576 (1988-03-01), Gillberg-LaForce et al.
patent: 4794045 (1988-12-01), Robin et al.
patent: 4818616 (1989-04-01), Milverton et al.
patent: 4822853 (1989-04-01), Uekita et al.
patent: 4830952 (1989-05-01), Penner et al.
"Langmuir-Blodgett Films," by M. C. Petty, Endeavour, New Series, vol. 7, 1983, pp. 65-69.
"A Moisture Protection Screening Test for Hybrid Circuit Encapsulants," by R. G. Mancke, IEEE Transactions on Components, Hybrids, and Manufacturing Technology, vol. CHMT-4, No. 4, Dec. 1981, pp. 492-498.
"InGaAs Metal-Semiconductor Field-Effect Transistor with Langmuir-Blodgett Deposited Gate Structure," by W. K. Chan et al., IEEE Electronic Device Letters, vol. 9, No. 5, May 1988, pp. 220-222.
M. Kakimoto et al., "Preparation of Polyimide Mono- and Multilayer Films," Chapter 41 in Polymers for High Technology, published by American Chemical Society, 1987, pp. 484-495.
"Preliminary Information Bulletin Spin Coating Techniques," Bulletin #PC-2, published by DuPont Company, May 1985.
"Langmuir-Blodgett Films-The Ultrathin Barrier," by C. Pitt, Electronics & Power, Mar., 1983, pp. 226-229.

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