Voltage control oscillator and manufacturing method thereof

A VCO comprising:

• a base board having an opening;
• an adjustable electronic device installed on a first side of said base board, wherein said adjustable electronic device has an adjustable area facing said opening of said base board, and said adjustable area is utilized for adjusting a characteristic of said adjustable electronic device;
• and
• a set of VCO components installed on said first side of base board, wherein said set of VCO components comprises a frequency generating circuit connected to said adjustable electronic device, and said frequency generating circuit generates a work frequency according to said characteristic of said adjustable electronic device;
• wherein said adjustable area of said adjustable electronic device is adjusted through said opening from a second side of said base board.

A method for manufacturing an electronic apparatus, said method utilizing a work frequency, said method comprising:

• providing a first base board;
• installing a VCO on said first base board, wherein said VCO comprises a second base board, an adjustable electronic device, and a set of VCOs, wherein said adjustable electronic device and said set of VCO components are installed on a first side of said second base board, a second side of said second base board faces said first base board, said second base board has an opening and said adjustable electronic device has an adjustable area facing said opening, said adjustable area of said adjustable electronic device is utilized for adjusting a characteristic of said adjustable electronic device, said set of VCO components comprises a frequency generating circuit connected to said adjustable electronic device, and said frequency generating circuit generates a work frequency according to said characteristic of said adjustable electronic device;
• adjusting said characteristic of said adjustable electronic device;
• and
• installing a set of working circuits on said first base board, wherein said set of working circuits connects to said VCO and utilizes said VCO.

An electronic apparatus which utilizes a work frequency, said electronic apparatus comprising:

• a first base board;
• a VCO installed on said first base board, wherein said VCO comprises:
• a second base board having an opening;
• an adjustable electronic device installed on a first side of said second base board wherein said second side of said second base board faces said first base board, said adjustable electronic device has an adjustable area for adjusting a characteristic of said adjustable electronic device, said adjustable area faces said opening, and a portion of surface of said first base and boarders of said opening together define a shelter space for sheltering said adjustable area of said adjustable electronic device;
• and
• a set of VCO components installed on said first side of said second base board, wherein said set of VCO components comprises a frequency generating circuit connected to said adjustable electronic device and said frequency generating circuit generates a work frequency according to said characteristic of said adjustable electronic device;
• and
• a set of working circuits installed on said first base board wherein said set of working circuits is connected to and utilize said VCO.