Title: Laser Sensitizing method for film of lead sulphide polycrystal
Application Number: 87102141 Application Date: 1987.03.21
Publication Number: 1021454 Publication Date: 1988.10.12
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01J5/10,H01G9/20,H01L31/18
Applicant(s) Name: Center No.014, Ministry of Aeronautics Industry Address:
Inventor(s) Name: Hu Rongwu
Attorney & Agent: MA GUOXIANG WANG SHUCI
Abstract:
     The present invention relates to a sensitizing method for process of PbS polycrystal film infrared detector to solve problems such as difficult controlling the sensitizing condition and poor repeatability. The irradiating with laser is used instead of pipe type high-temperature furnace. According to the method offered by the invention, the sensitizing speed is high (one piece of film in about one minute), finished product percentage is high and the sensitizing condition may be directly controlled in the course of sensitizing. The said invention provides a fine sensitizing method for the process of PbS polycrystal film infrared detector. The parameters of property of the sensitized product is comparable with that subjected to the high-temp. method.
Time: 13