Module component
A module includes a component, a circuit board having the component mounted thereon, a first grounding pattern formed on an outermost periphery of a surface portion of the circuit board; a first sealer provided on the circuit board and having a dimension projected on the circuit board, and a metal film covering the sealer and connected to the grounding pattern. The dimension of the first dealer is smaller than an outside dimension of the circuit board. The first sealer is made of first resin and sealing the component. The module has a low profile and is adequately shielded.
1. A module comprising:
a component;
a circuit board having the component mounted thereon;
a first grounding pattern formed on four sides of an outermost periphery of a surface portion of the circuit board;
a first sealer provided on the circuit board and having a dimension projected on the circuit board, the dimension being smaller than an outside dimension of the circuit board, the first sealer being made of first resin and sealing the component;
a metal film covering the first sealer and connected to the grounding pattern; and
a second grounding pattern provided on the surface portion of the circuit board, wherein the first sealer has a dividing ditch formed therein corresponding to circuit blocks,
wherein the metal film is connected to the second grounding pattern through at least one of a bottom and a side of the dividing ditch.
2. The module according to claim 1 , wherein the surface portion of the circuit board is smaller than the outer dimension of the circuit board, and the metal film is connected onto a side of the grounding pattern.
3. The module according to claim 1 , further comprising a second sealer made of second resin for filling the dividing ditch.
4. The module according to claim 1 , wherein the metal film includes,
a first film plated on the first sealer by a non-electrolytic plating method, and
a second film plated on the first film by an electrolytic plating method.
5. The module according to claim 1 , further comprising a lead-free solder for connecting the circuit board to the component.
6. The module according to claim 1 , further comprising a conductive adhesive for connecting the circuit board to the component.
7. The module according to claim 1 , further including a third resin sealing a clearance between the circuit board and the component.
8. A module comprising:
a component;
a circuit board having the component mounted thereon;
a first grounding pattern formed on an outermost periphery of a surface portion of the circuit board;
a first sealer provided on the circuit board and having a dimension projected on the circuit board, the dimension being smaller than an outside dimension of the circuit board, the first sealer being made of first resin and sealing the component;
a metal film covering the first sealer and connected to the grounding pattern; and
a second grounding pattern provided on the surface portion of the circuit board,
wherein the first sealer has a dividing ditch formed therein corresponding to circuit blocks, and
the metal film is connected to the second grounding pattern through at least one of a bottom and a side of the dividing ditch.
9. The module according to claim 8 , wherein the surface portion of the circuit board is smaller than the outside dimension of the circuit board, and the metal film is connected onto a side of the grounding pattern.
10. The module according to claim 8 , further comprising a second sealer made of second resin for filling the dividing ditch.
11. The module according to claim 8 , wherein the metal film includes,
a first film plated on the first sealer by a non-electrolytic plating method, and
a second film plated on the first film by an electrolytic plating method.
12. The module according to claim 8 , further comprising a lead-free solder for connecting the circuit board to the component.
13. The module according to claim 8 , further comprising a conductive adhesive for connecting the circuit board to the component.
14. The module according to claim 8 , further including a third resin sealing a clearance between the circuit board and the component.