Semiconductor device and method of producing the same
First Claim
1. A semiconductor device comprising:
- a micro device having a device substrate, a function element provided on a surface of the device substrate and having an oscillator or a movable part, first lands provided on the surface of the device substrate by being arranged on an outer circumference portion of the function element, and bumps provided to the first lands;
a circuit board having second lands formed to correspond to the bumps thereon the micro device is mounted from the bump formation surface side so that the bumps and the second lands are electrically connected;
a sealing resin layer formed to go round the outer circumference portion of the function element to fix connection portions of the bumps and the second lands and to seal a clearance between the device substrate and the circuit board;
wherein a cavity portion is formed between the function element and the circuit board.
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Accused Products
Abstract
To provide a semiconductor device configured that a micro device having a device substrate, a function element provided on the device substrate and having an oscillator or a movable part, first lands provided on a surface of the device substrate by being arranged on its outer circumference portion of the function element, and bumps provided to the first lands is mounted on the circuit board having second lands formed to correspond to the bumps, from the bump formation surface side, so that the bumps and the second lands are electrically connected; on which a sealing resin layer is formed to go round the outer circumference portion of the function element to fix connection portions of the bumps and the second lands, and to seal a clearance between the device substrate and the circuit board; and a cavity portion is formed between the function element and the circuit board.
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Citations
20 Claims
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1. A semiconductor device comprising:
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a micro device having a device substrate, a function element provided on a surface of the device substrate and having an oscillator or a movable part, first lands provided on the surface of the device substrate by being arranged on an outer circumference portion of the function element, and bumps provided to the first lands;
a circuit board having second lands formed to correspond to the bumps thereon the micro device is mounted from the bump formation surface side so that the bumps and the second lands are electrically connected;
a sealing resin layer formed to go round the outer circumference portion of the function element to fix connection portions of the bumps and the second lands and to seal a clearance between the device substrate and the circuit board;
wherein a cavity portion is formed between the function element and the circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A semiconductor device comprising:
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a micro device having a device substrate, a function element provided on a surface of the device substrate and having an oscillator or a movable part, and first lands provided on the surface of the device substrate by being arranged on an outer circumference portion of the function element;
a circuit board having second lands formed to correspond to the first lands and bumps provided to the second lands thereon the micro device is mounted from the first land formation surface side so that the bumps and the first lands are electrically connected;
a sealing resin layer formed to go round the outer circumference portion of the function element to fix connection portions of the bumps and the first lands and to seal a clearance between the device substrate and the circuit board;
wherein a cavity portion is formed between the function element and the circuit board. - View Dependent Claims (9, 10, 11, 12)
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13. A method of producing a semiconductor device including mounting a micro device having a device substrate, a function element provided to a surface of the device substrate and having an oscillator or a movable part, first lands provided to the surface of the device substrate by being arranged on an outer circumference portion of the function element, and bumps provided to the first lands to a circuit board having second lands formed to correspond to the bumps, the method comprising the steps of:
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forming an uncured sealing resin layer on the second lands so as to go round the outer circumference portion of the function element by including a second land formation region of the circuit board;
mounting the micro device to the circuit board from the bump formation surface side so that the bumps penetrate the sealing resin layer to contact and electrically connect to the second lands and the sealing resin layer seals a clearance between the device substrate and the circuit board; and
curing the sealing resin layer to fix connection portions of the bumps and the second lands. - View Dependent Claims (14, 15, 16, 17)
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18. A method of producing a semiconductor device including mounting a micro device having a device substrate, a function element provided to a surface of the device substrate and having an oscillator or a movable part, and first lands provided to the surface of the device substrate by being arranged on an outer circumference portion of the function element to a circuit board having second lands formed to correspond to the first lands and bumps provided to the second lands, the method comprising the steps of:
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forming an uncured sealing resin layer on the first lands so as to go round the outer circumference portion of the function element by including a first land formation region of the device substrate;
mounting the micro device on the circuit board from the first land formation surface side so that the bumps penetrate the sealing resin layer to contact and electrically connect to the first lands and the sealing resin layer seals a clearance between the device substrate and the circuit board; and
curing the sealing resin layer to fix connection portions of the bumps and the first lands. - View Dependent Claims (19, 20)
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Specification