摘要:
A method for stripping a film from a wafer substrate includes the steps of inserting a boat holding the wafer into a processing chamber of a CVD apparatus, and injecting gas into the chamber, to thereby strip the wafer of its film. A typical film requiring stripping is a polysilicon film grown on an underlying oxide layer of the substrate. In this case, CIF.sub.3 is used to strip the polysilicon film without damaging the oxide layer. Accordingly, this method is applicable to the quality testing of semiconductor wafer films using a test wafer. In such quality testing a film is formed on a test wafer substrate at the same time the semiconductor wafer film is formed. The film of the test wafer is tested to evaluate the quality of the formation of the semiconductor wafer film. The test wafer can then be stripped within the chemical vapor deposition apparatus and thus can be reused soon thereafter.
摘要:
A multifunction mechaposition expanding controlling apparatus and method thereof are provided which can expand and control the mechaposition according to the number of the function as many as the desired numbers by rotating, above 360.degree., having the program switch of a rotary type of the multifunction electronic machineries having a deck.The apparatus comprises a microcomputer, a capstan motor and a loading motor, a program switch of a rotary type, a deck and a motor driving portion.
摘要:
A multifunction mechaposition expanding controlling apparatus and method thereof are provided which can expand and control the mechaposition according to the number of the function as many as the desired numbers by rotating, above 360.degree., having the program switch of a rotary type of the multifunction electronic machineries having a deck. The apparatus comprises a microcomputer, a capstan motor and a loading motor, a program switch of a rotary type, a deck and a motor driving portion.
摘要:
An automatic control method for home appliances using a video tape recorder and a device thereof are disclosed, in which the device comprises one or more power source control means, a home automatization mode designation means, and a microcomputer; and the method comprises: a step of appointing power supply starting times and power supply ending times for the respective passively controlled apparatuses; a step of supplying the power source upon arrival of the power source supply time for a particular apparatus; and a step of disconnecting the power supply from a particular apparatus upon arrival of the power supply blocking time. According to the present invention, as many automatic controls of home appliances as the record-capable number of the programmed recordings of broadcasting programs are possible, and it is possible to use a part of the function for programmed recordings of broadcasting programs, and to use the remaining part of the function for automatic controls of home appliances.