Portable electronic device

• US 20050082374A1
• Filed: 09/23/2004
• Published: 04/21/2005
• Est. Priority Date: 09/26/2003
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Tsuchimoto, Yuuji
• Granted Patent: US 7,063,267 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: G06K 19/07745 Mounting details of integrated circuit chips
• CPC Class Codes: H01L 2224/45144 Gold (Au) as principal constituent
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48227 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/48228 the bond pad being disposed in a recess of the surface of the item
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/1815 Shape

Abstract

A portable electronic device includes a card base having a holding recess and an IC module having a substrate, an LSI mounted on the substrate, and a protection member which covers the LSI. The IC module is held in the holding recess from the protection member. The portable electronic device further includes a reinforcing projection that is formed along the circumference of the surface of the protection member which faces the inner bottom of the holding recess.

Claims

1. A portable electronic device comprising:

a card base having a holding recess;

an IC module having a substrate, an LSI mounted on the substrate, and a protection member which covers the LSI, the IC module being held in the holding recess from the protection member; and

a reinforcing projection that is formed along a circumference of a surface of the protection member which faces an inner bottom of the holding recess.

2. The portable electronic device according to claim 1, wherein the projection is shaped like a rectangular frame.

3. The portable electronic device according to claim 1, wherein the projection is shaped like a circular frame.

4. The portable electronic device according to claim 2, wherein a lattice-like projection is formed inside the projection shaped like the rectangular frame.

5. A portable electronic device comprising:

a card base having a holding recess;

an IC module having a substrate, an LSI one surface of which is mounted on one surface of the substrate, a contact terminal provided on other surface of the substrate, a connection member one end of which is electrically connected to the contact terminal and other end of which is electrically connected to other surface of the LSI to form a loop, and a protection member which covers the LSI and the connection member, the IC module being held in the holding recess of the card base from the protection member; and

a reinforcing projection that is formed along a circumference of a surface of the protection member which faces an inner bottom of the holding recess to cover the loop of the connection member.

6. The portable electronic device according to claim 5, wherein the projection is shaped like a rectangular frame.

7. The portable electronic device according to claim 6, wherein a lattice-like projection is formed inside the projection shaped like the rectangular frame.

8. A portable electronic device comprising:

a card base having a first holding recess, a second holding recess formed in an inner bottom of the first holding recess, and an irregularity portion formed in an inner bottom of the second holding recess; and

an IC module having a substrate, an LSI mounted on the substrate, and a protection member which covers the LSI, the substrate being held in the first holding recess and the protection member being inserted in the second holding recess.

9. The portable electronic device according to claim 8, wherein the irregularity portion has a plurality of circular recesses.

10. The portable electronic device according to claim 8, wherein the irregularity portion has a lattice-like recess.

11. The portable electronic device according to claim 8, wherein the irregularity portion has a ring-shaped circular recess.

12. A portable electronic device comprising:

a card base having a first holding recess, a second holding recess formed in an inner bottom of the first holding recess, and an irregularity portion formed in an inner bottom of the second holding recess;

an IC module having a substrate, an LSI mounted on the substrate, and a protection member which covers the LSI, the substrate being held in the first holding recess and the protection member being inserted in the second holding recess; and

a reinforcing projection that is formed along a circumference of a surface of the protection member which faces the inner bottom of the second holding recess, the irregularity portion having a projection which is inserted inside the reinforcing projection.

13. The portable electronic device according to claim 12, wherein the projection of the irregularity portion is shaped like a rectangle.

14. The portable electronic device according to claim 12, wherein the projection of the irregularity portion is shaped like a rectangular frame.

15. The portable electronic device according to claim 12, wherein the irregularity portion has a plurality of projections.