IP Library Granted Patent US 7,970,033
Granted Patent B2
US 7,970,033 · App. 12/510,785 · Granted Jun 28, 2011

Semiconductor device and electronic equipment using same

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Quick Facts
Patent No.
US 7,970,033
App. No.
12/510,785
Granted
Jun 28, 2011
Kind
B2
Abstract

A semiconductor device includes: a first lead having an element mounting portion; a second lead located in a same plane as the first lead, with a predetermined space left between the first lead and the second lead; a molding encapsulant made of a resin for fixing the leads; and a semiconductor element affixed to a top surface of the element mounting portion of the first lead. The molding encapsulant covers at least part of each of upper and lower surfaces of the leads. A resin injection hole mark, which is a mark of a hole through which the encapsulant has been injected, is left on the encapsulant, and part of the resin injection hole mark is located above the first lead or the second lead, and the remaining part of the resin injection hole mark is located above a space between the first lead and the second lead.

Claims (27)

1. A semiconductor device comprising:

a first lead having an element mounting portion;

a second lead disposed with a predetermined space left between the first lead and the second lead;

an encapsulant made of a transfer-molding resin for fixing the first lead and the second lead; and

a semiconductor element disposed on a top surface of the element mounting portion of the first lead, wherein:

the encapsulant covers at least part of upper and lower surfaces of the first lead and at least part of upper and lower surfaces of the second lead, and

a resin injection hole mark, which is a mark of a hole through which the encapsulant is injected, is left on the encapsulant, and part of the resin injection hole mark is located above the first lead or the second lead, and the remaining part of the resin injection hole mark is located above a space between the first lead and the second lead.

2. A semiconductor device comprising:

a first lead having an element mounting portion;

a second lead disposed with a predetermined space left between the first lead and the second lead;

an encapsulant made of a transfer-molding resin for fixing the first lead and the second lead; and

a semiconductor element disposed on a top surface of the element mounting portion of the first lead, wherein:

the encapsulant covers at least part of upper and lower surfaces of the first lead and at least part of upper and lower surfaces of the second lead,

a resin injection hole mark, which is a mark of a hole through which the encapsulant is injected, is left on the encapsulant, and part of the resin injection hole mark is located above the first lead or the second lead, and the remaining part of the resin injection hole mark is located above a space between the first lead and the second lead, and

an area of the first lead or the second lead that faces the resin injection hole mark is a thin area at which a thickness of the first lead or the second lead is smaller than the other area of the first lead or the second lead that does not face the resin injection hole mark.

3. The semiconductor device of claim 2 , wherein

the area of the first lead or the second lead that faces the resin injection hole mark is formed by being punched out downward from the resin injection hole mark side.

4. The semiconductor device of claim 1 , wherein

the semiconductor element is a laser diode.

5. Electronic equipment comprising the semiconductor device of claim 1 as a light source.

6. The semiconductor device of claim 2 , wherein

the semiconductor element is a laser diode.

7. Electronic equipment comprising the semiconductor device of claim 2 as a light source.

8. Electronic equipment comprising the semiconductor device of claim 4 as a light source.

9. Electronic equipment comprising the semiconductor device of claim 6 as a light source.

10. The semiconductor device of claim 1 , wherein the second lead is disposed in a same plane as the first lead.

11. The semiconductor device of claim 2 , wherein the second lead is disposed in a same plane as the first lead.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 27, 2020
From: PANASONIC CORPORATION
To: PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.
Reel/Frame 052755/0917 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2009
From: MINAMIO, MASANORI; YOSHIKAWA, NORIYUKI; IJIMA, SHINICHI
To: PANASONIC CORPORATION
Reel/Frame 023189/0979 →