Connection structure for connecting semiconductor element and wiring board, and semiconductor device
First Claim
1. A connection structure for electrically connecting a plurality of semiconductor element connection terminals of a semiconductor element with a plurality of wiring board connection terminals of a wiring pattern provided on a wiring board,the wiring patter including:
- a plurality of inner leads respectively having the wiring board connection terminals, and outer leads respectively connected to the inner leads,each end of the inner leads opposite to another ends which are connected with the outer leads aligning along an outer circumference of an area where the semiconductor element is mounted, andthe wiring board including;
a solder resist covered peripheral part which covers the inner leads with solder resist, and a solder resist covered center part which covers the area where the semiconductor element is mounted with the solder resist,the solder resist covered peripheral part having a solder resist opening/solder resist openings which expose(s) the wiring board connection terminals respectively provided at the ends of the inner leads which are opposite to the another ends connected with the outer leads, andthe solder resist covered center part covering the ends of the inner leads which are opposite to the another ends connected with the outer leads.
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Accused Products
Abstract
In a connection structure of the present invention, the wiring board including a solder resist covering part which covers the wiring pattern with solder resist, the solder resist covering part having a solder resist opening or solder resist openings which expose(s) the wiring board connection terminals therethrough, and the solder resist opening or the solder resist openings surrounding at least one part of the solder resist covering part. Therefore, the wiring patterns are not unnecessarily exposed. That is, without disadvantageous contact between each wiring pattern and the semiconductor element, the semiconductor element can be mounted on the wiring board, and thus, the semiconductor device is reliable.
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Citations
16 Claims
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1. A connection structure for electrically connecting a plurality of semiconductor element connection terminals of a semiconductor element with a plurality of wiring board connection terminals of a wiring pattern provided on a wiring board,
the wiring patter including: - a plurality of inner leads respectively having the wiring board connection terminals, and outer leads respectively connected to the inner leads,
each end of the inner leads opposite to another ends which are connected with the outer leads aligning along an outer circumference of an area where the semiconductor element is mounted, and the wiring board including;
a solder resist covered peripheral part which covers the inner leads with solder resist, and a solder resist covered center part which covers the area where the semiconductor element is mounted with the solder resist,the solder resist covered peripheral part having a solder resist opening/solder resist openings which expose(s) the wiring board connection terminals respectively provided at the ends of the inner leads which are opposite to the another ends connected with the outer leads, and the solder resist covered center part covering the ends of the inner leads which are opposite to the another ends connected with the outer leads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a plurality of inner leads respectively having the wiring board connection terminals, and outer leads respectively connected to the inner leads,
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10. A wiring board for mounting a semiconductor element thereon, the wiring board comprising:
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an insulating substrate; a wiring pattern provided on the insulating substrate, the wiring pattern including a plurality of inner leads respectively having wiring board connection terminals of the wiring pattern, and outer leads respectively connected with the inner leads, each end of the inner leads opposite to another ends which are connected with the outer leads aligning along an outer circumference of an area where the semiconductor element is mounted; a solder resist covered peripheral part which covers the inner leads with solder resist; and a solder resist covered center part, which is on the insulating substrate and covers the area where the semiconductor element is mounted with the solder resist, the solder resist covered peripheral part having a solder resist opening/solder resist openings which expose(s) the wiring board connection terminals respectively provided at the ends of the inner leads which are opposite to the another ends connected with the outer leads, and the solder resist covered center part covering the ends of the inner leads which are opposite to the another ends connected with the outer leads. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification