SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE

Abstract

A semiconductor device includes a base plate including a plurality of terminals; a semiconductor chip, mounted above the base plate, including a plurality of pads arranged on a face of the semiconductor chip; an insulating slope member, disposed around the semiconductor chip, covering steps between the semiconductor chip and the base plate; and a wiring pattern extending on the insulating slope member to electrically connect the terminals to the pads. The base plate has a base-side retaining section for retaining the insulating slope member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements.

FIG. 1A is a schematic plan view of a semiconductor device according to a first embodiment of the present invention, FIG. 1B is a schematic sectional view of the semiconductor device taken along the line IB-IB of FIG. 1A, and FIG. 1C is an enlarged sectional view of a principal part of the semiconductor device.

FIGS. 2A to 2D are illustrations showing steps included in a method for manufacturing the semiconductor device shown in FIG. 1A.

FIG. 3 is an enlarged sectional view of a modification of the semiconductor device according to the first embodiment.

FIGS. 4A and 4B are illustrations showing steps included in a method for manufacturing the modification of the semiconductor device according to the first embodiment.

FIG. 5A is a schematic plan view of a semiconductor device according to a second embodiment of the present invention and FIG. 5B is a schematic sectional view of this semiconductor device taken along the line VB-VB of FIG. 5A.

FIGS. 6A to 6C are illustrations showing steps included in a method for manufacturing the semiconductor device shown in FIG. 5A.

FIG. 7 is a schematic enlarged sectional view of a modification of the semiconductor device according to the second embodiment.

FIG. 8 is an enlarged sectional view of a semiconductor device according to a third embodiment of the present invention.

FIG. 9 is an enlarged sectional view of a modification of the semiconductor device according to the third embodiment.

FIG. 10 is an enlarged sectional view of a semiconductor device according to a fourth embodiment of the present invention.

FIG. 11 is an illustration showing a step included in a method for manufacturing the semiconductor device shown in FIG. 10.

FIG. 12 is an enlarged sectional view of a modification of the semiconductor device according to the fourth embodiment.

FIG. 13 is an illustration showing a step included in a method for manufacturing the modification shown in FIG. 12.

FIG. 14 is an illustration of a notebook-type personal computer that is an example of an electronic apparatus including the semiconductor device according to any one of the first to fourth embodiments.

FIG. 15 is an illustration of a mobile phone that is another example of the electronic apparatus.

FIG. 16A is an enlarged sectional view of a known semiconductor device and FIGS. 16B to 16D are illustrations showing steps included in a method for manufacturing the known semiconductor device.

Claims

1. A semiconductor device comprising: a base plate including a plurality of terminals;a semiconductor chip, mounted above the base plate, including a plurality of pads arranged on a face of the semiconductor chip;an insulating slope member, disposed around the semiconductor chip, covering steps between the semiconductor chip and the base plate; anda wiring pattern extending on the insulating slope member to electrically connect the terminals to the pads,wherein the base plate has a base-side retaining section for retaining the insulating slope member.

2. The semiconductor device according to claim 1, wherein the base-side retaining section has a groove or bumps.

3. The semiconductor device according to claim 1, wherein the base-side retaining section is disposed between the terminals and the pads.

4. A semiconductor device comprising: a base plate including a plurality of terminals;a semiconductor chip, mounted above the base plate, including a plurality of pads arranged on a face of the semiconductor chip;an insulating member, disposed around the semiconductor chip, covering steps between the semiconductor chip and the base plate; anda wiring pattern extending on the insulating slope member to electrically connect the terminals to the pads,wherein the base plate has a recessed section for accommodating the semiconductor chip and the insulating member.

5. The semiconductor device according to claim 4, wherein the recessed section has a depth less than or equal to the thickness of the semiconductor chip.

6. A semiconductor device comprising: a base plate including a plurality of terminals;a semiconductor chip, mounted above the base plate, including a plurality of pads arranged on a face of the semiconductor chip;an insulating slope member, disposed around the semiconductor chip, covering steps between the semiconductor chip and the base plate; anda wiring pattern extending on the insulating slope member to electrically connect the terminals to the pads,wherein the semiconductor chip has a side face which is adjacent to the insulating slope member and which is tilted or stepped and the insulating slope member is disposed on the side face of the insulating slope member.

7. A semiconductor device comprising: a base plate including a plurality of terminals;a semiconductor chip, mounted above the base plate, including a plurality of pads arranged on a face of the semiconductor chip;an insulating slope member, disposed around the semiconductor chip, covering steps between the semiconductor chip and the base plate; anda wiring pattern extending on the insulating slope member to electrically connect the terminals to the pads,wherein the semiconductor chip has a chip-side retaining section, disposed on the face of the semiconductor chip, for retaining the insulating slope member.

8. The semiconductor device according to claim 7, wherein the base-side retaining section has a groove or bumps.

9. The semiconductor device according to claim 7, wherein the chip-side retaining section has a guard ring disposed on the face of the semiconductor chip.

10. The semiconductor device according to claim 7, wherein the base-side retaining section is located outside the pads.

11. A method for manufacturing a semiconductor device comprising: mounting a semiconductor chip including a plurality of pads above a base plate including a plurality of terminals, the pads being arranged on a face of the semiconductor chip;forming an insulating slope member around the semiconductor chip such that the insulating slope member covers steps between the semiconductor chip and the base plate; andforming a wiring pattern on the insulating slope member such that the wiring pattern electrically connects the terminals to the pads,wherein the base plate has a base-side retaining section for retaining the insulating slope member and the insulating slope member is retained by the base-side retaining section when the insulating slope member is formed.

12. A method for manufacturing a semiconductor device comprising: mounting a semiconductor chip including a plurality of pads above a base plate including a plurality of terminals, the pads being arranged on a face of the semiconductor chip;forming an insulating member around the semiconductor chip such that the insulating member covers steps between the semiconductor chip and the base plate; andforming a wiring pattern on the insulating member such that the wiring pattern electrically connects the terminals to the pads,wherein the base plate has a recessed section for accommodating the semiconductor chip and the insulating member and the insulating member is provided in a gap between the recessed section and the semiconductor chip.

13. A method for manufacturing a semiconductor device comprising: mounting a semiconductor chip including a plurality of pads above a base plate including a plurality of terminals, the pads being arranged on a face of the semiconductor chip;forming an insulating slope member around the semiconductor chip such that the insulating slope member covers steps between the semiconductor chip and the base plate; andforming a wiring pattern on the insulating slope member such that the wiring pattern electrically connects the terminals to the pads,wherein the semiconductor chip has a side face which is adjacent to the insulating slope member and which is tilted or stepped and the insulating slope member is disposed on the side face of the insulating slope member.

14. A method for manufacturing a semiconductor device comprising: mounting a semiconductor chip including a plurality of pads above a base plate including a plurality of terminals, the pads being arranged on a face of the semiconductor chip;forming an insulating slope member around the semiconductor chip such that the insulating slope member covers steps between the semiconductor chip and the base plate; andforming a wiring pattern on the insulating slope member such that the wiring pattern electrically connects the terminals to the pads,wherein the semiconductor chip has a chip-side retaining section, disposed on the face of the semiconductor chip, for retaining the insulating slope member and the insulating slope member is retained by the chip-side retaining section when the insulating slope member is formed.