Dielectric laminated device including a buried electric conductive member to form a strip line and its method of manufacture

A dielectric laminated device comprising:

• a dielectric member containing a low temperature sintering material;
• and
• a strip line buried in said dielectric member;
• wherein the thickness or the width of said strip line being varied on the basis of a line direction of said strip line.

A dielectric laminated device comprising:

• a dielectric member containing a low temperature sintering material;
• a plurality of strip lines buried in said dielectric member;
• a coupling electrode buried in said dielectric member on one or other side of said plurality of strip lines;
• and
• an input and output coupling electrode buried in said dielectric member on one or the other side of said plurality of strip lines,
• wherein a thickness of said strip line being larger than each thickness of said coupling electrode and said input and output coupling electrode.

A dielectric laminated device comprising:

• a dielectric member formed by laminating a plurality of dielectric sheets,
• a shield electrode disposed on an outer surface of said dielectric member,
• a strip line formed by an electrode material buried in an inside of a part of said plural dielectric sheets, and
• an input and output electrode connected to said strip line, and exposed to a surface along a line direction of the strip line out of outer surfaces of said dielectric member.

A dielectric laminated device comprising:

• a dielectric member formed by laminating a plurality of dielectric sheets including a first, second and third dielectric sheets,
• a shield electrode disposed on an outer surface of said dielectric member,
• a first strip line formed by an electrode material buried in an inside of said first dielectric sheet,
• a second strip line formed by said electrode material buried in an inside of said second dielectric sheet which is laminated on one of faces of said first dielectric sheet, and
• a third strip line formed by said electrode material buried in an inside of said third dielectric sheet which is laminated on the other face of said first dielectric sheet,
• wherein surfaces of said second and third strip lines are respectively in contact with a surface of said first strip line along a line direction of said first strip line, a length of said second and third strip lines is shorter than a length of said first strip line, an end of said first strip line is electrically opened along with an end of said second and third strip lines, and the other end of said first strip line is electrically connected to a ground electrode disposed outside said dielectric member.

A dielectric laminated filter comprising:

• a first dielectric sheet having a plurality of openings,
• a plurality of strip lines formed by burying electrodes in said plural openings,
• a second dielectric sheet laminated on one surface of said first dielectric sheet,
• a third dielectric sheet laminated on the other surface of said first dielectric sheet,
• a coupling electrode internally laminated in said second dielectric sheet, for forming a coupling capacity with said plural strip lines,
• an input and output coupling electrode internally laminated in said third dielectric sheet, for forming an input and output capacity with said plural strip line,
• a first shield electrode provided on an upper surface of said second dielectric sheet, and
• a second shield electrode provided on a lower surface of said dielectric sheet,
• wherein an end of said plural strip lines is connected to a ground electrode, the other end of said plural strip lines is opened, and said first to third dielectric sheets are calcined in one piece by the use of the same ceramic material.

A method for manufacturing a dielectric laminated device comprising:

• a step for forming an burying space for burying an electric conductive member in a dielectric sheet,
• an burying step for burying an electric conductive member in said burying space so as to form a strip line and an input and output electrode for connecting said strip line, and
• a lamination step for forming a laminate by laminating a single or plural other dielectric sheets on a dielectric sheet on which said strip line and said input and output electrode are formed,
• wherein said input and output electrode is produced in a manner to expose on a surface along a line direction of said strip line out of outer surfaces of the dielectric laminated device to be manufactured on the basis of said three steps.

A method for manufacturing a dielectric laminated device comprising:

• a step for forming an burying space for burying electric conductive members in a plurality of dielectric sheets,
• a strip line forming step for forming a strip line by burying an electric conductive member in said burying space in one dielectric sheet out of said plural dielectric sheets,
• an input and output electrode forming step for forming an input and output electrode by burying a conductive member in said burying space of another dielectric sheet out of said plural dielectric sheets, and
• a laminating step for laminating dielectric sheets burying with said conductive members so as to connect said input and output electrode with said strip line, and forming a laminate by laminating a single or plurality of other dielectric sheets on said laminated dielectric sheets,
• wherein said input and output electrode is manufactured in a manner to be exposed to a surface lying along a line direction of said strip line out of outer surfaces of said laminate.

A method for manufacturing a dielectric laminated device comprising:

• a step for forming an burying space for burying electric conductive members in a dielectric sheet,
• an burying step for burying an electric conductive member in said burying space to form a strip line, and
• a laminating step for forming a laminate by laminating a plurality of dielectric sheets on which said strip line is formed and other dielectric sheet,
• wherein, of the strip lines burying in each layer of said plural dielectric sheets, a line length of one strip line is longer than the line length of other strip lines.