IP Library › Granted Patent US 9,966,332
Granted Patent B2
US 9,966,332 · App. 13/794,576 · Granted May 8, 2018

Solid-state device including a conductive bump connected to a metal pattern and method of manufacturing the same

Inventors: Yoshinobu Suehiro (Kiyosu, JP); Satoshi Wada (Kiyosu, JP); Koji Tasumi (Kiyosu, JP)
Assignee: TOYODA GOSEI CO., LTD.
H01L23/49827H01L23/49838H01L24/16H01L24/17H01L24/32H01L24/73H01L29/0657H01L33/62H05K1/111H05K3/325H01L24/05H01L24/06H01L24/13H01L24/48H01L2224/0401H01L2224/04042H01L2224/05568H01L2224/05599H01L2224/0603H01L2224/06102H01L2224/13023H01L2224/1329H01L2224/13139H01L2224/13144H01L2224/13147H01L2224/13386H01L2224/1415H01L2224/16105H01L2224/16237H01L2224/17051H01L2224/17106H01L2224/17505H01L2224/26175H01L2224/29139H01L2224/29144H01L2224/29147H01L2224/32105H01L2224/48091H01L2224/48465H01L2224/73203H01L2224/73265H01L2224/8114H01L2224/81191H01L2224/81385H01L2224/81439H01L2224/81444H01L2224/83192H01L2224/83385H01L2224/85385H01L2924/00013H01L2924/00014H01L2924/10155H01L2924/351H05K2201/098H05K2201/0969H05K2201/09381H05K2201/09827H05K2201/10106Y02P70/611
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Quick Facts
Patent No.
US 9,966,332
App. No.
13/794,576
Granted
May 8, 2018
Kind
B2
Abstract

A solid-state device includes a metal pattern formed on a substrate, a conductive bump connected to the metal pattern so as to be contact with a side surface of the metal pattern, and a solid-state element connected to the metal pattern via the conductive bump. A bottom surface level of at least a portion of the conductive bump is substantially equal to a bottom surface level of a portion of the metal pattern at which the metal pattern is connected to the conductive bump.

Claims (22)

1. A solid-state device, comprising:

a substrate comprising a metal pattern formed thereon;

a solid-state element mounted on the substrate and comprising an electrode; and

a conductive bump in contact with the metal pattern of the substrate and the electrode of the solid-state element,

wherein, in a top view, a contact area of the conductive bump and the electrode comprises a region other than a contact area of the conductive bump and the metal pattern,

wherein, in a plane that includes center lines of opposite-conductivity ones of the conductive bump, a shortest distance between opposite edges of opposite-conductivity ones of the metal pattern is not less than a shortest distance between the center lines of the opposite-conductivity ones of the conductive bump, and

wherein, in the top view, an entirety of a top surface of the metal pattern is located outside the conductive bump.

2. A solid-state device, comprising:

a metal pattern formed on a substrate;

a conductive bump connected to the metal pattern; and

a solid-state element connected to the metal pattern via the conductive bump,

wherein the solid-state element comprises a plurality of electrodes,

wherein a bottom surface level of at least a portion of the conductive bump is substantially equal to a bottom surface level of a portion of the metal pattern at which the metal pattern is connected to the conductive bump,

wherein the conductive bump is in contact with the substrate, a side surface of the metal pattern, and the electrodes of the solid-state element,

wherein X<Y is satisfied where X represents a contact area between the conductive bump and a top surface of the metal pattern, and Y represents a contact area between the conductive bump and the substrate,

wherein a center part of the conductive bump is not in contact with the top surface of the metal pattern as an electrical terminal, and

wherein, in a plan view, an entirety of the top surface of the metal pattern is located outside the conductive bump.

3. The solid-state device according to claim 2 , wherein the side surface of the metal pattern is inclined with respect to a vertical direction.

4. The solid-state device according to claim 2 , wherein the conductive bump comprises a plurality of conductive bumps and the metal pattern comprises a plurality of metal patterns, and

wherein, in a region under the solid-state element, a distance between the conductive bumps is smaller than a distance between the metal patterns connected to the conductive bumps.

5. The solid-state device according to claim 2 , wherein the metal pattern comprises first and second metal patterns, wherein the conductive bump comprises first and second conductive bumps, and

wherein two electrodes of the solid-state element are each connected to the first and second metal patterns via the first and second conductive bumps.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2013
From: SUEHIRO, YOSHINOBU; WADA, SATOSHI; TASUMI, KOJI
To: TOYODA GOSEI CO., LTD.
Reel/Frame 030117/0289 →
Priority Claims (2)
JP 2012-066289 · Mar 22, 2012 · national
JP 2012-275997 · Dec 18, 2012 · national
Continuity (1)
Related Publication 20130248916A1 · Sep 26, 2013