# US 5,710,457 A · Semiconductor integrated circuit

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- Number: US 5,710,457 A
- Document ID: US5710457A
- Status: Granted
- Kind: A
- Application number: 08/541,102
- Filed: 1995-10-11
- Granted: 1998-01-20
- Earliest claimed: 1994-10-28
- Assignees: NEC Corporation
- Inventors: Takayuki Uno
- Web page: https://patentgrep.com/patent/US5710457A

## CPC

- H10W 70/413: {Insulating or insulated substrates serving as die pads (H10W70/468 takes precedence)}
- H10W 72/07338: {hardening the adhesive by curing, e.g. thermosetting}
- H10W 72/536: {the connected ends being ball-shaped}
- H10W 72/5363: {the connected ends being wedge-shaped}
- H10W 72/5449: {not being orthogonal to a side surface of the chip, e.g. fan-out arrangements}
- H10W 72/5522: {comprising gold [Au]}
- H10W 72/581: {Auxiliary members, e.g. flow barriers}
- H10W 72/59: Bond pads specially adapted therefor
- H10W 72/865: {Die-attach connectors and bond wires}
- H10W 72/884: {Die-attach connectors and bond wires}
- H10W 72/932: {Plan-view shape, i.e. in top view}
- H10W 74/00: Encapsulations, e.g. protective coatings
- H10W 90/756: {between a chip and a stacked lead frame, conducting package substrate or heat sink}
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A semiconductor integrated circuit is characterized in that a semiconductor chip and the distal end portions of inner leads are adhered and fixed using a coupling support member consisting of an insulating film with an insulating adhesive layer so as to expose the bonding pads of the chip and the bonding pads of the inner leads. In this structure, a conventional wire bonding technique can be applied, and contact between bonding wires and the chip can be prevented.

## Claims

### Claim 1

An integrated circuit (IC) package, for packaging an IC chip with a plurality of bonding pads on one major surface, said IC package comprising:
a plurality of leads each said lead having an outer portion and an inner portion;
a plurality of bonding wires, each of said bonding wires electrically connecting a contacting area of one of said leads to a corresponding said bonding pad on said IC chip packaged in said IC package;
a sheet-like coupling support member having an insulated side and an insulating adhesive side, said sheet-like coupling support member further comprising:
a chip fixing portion on said insulating adhesive side, said IC chip being fixedly adhered to chip faring portion on said major surface, and
a lead fixing portion for fixedly adhering a distal end of each of said plurality of leads, each said lead contact area being separated from said chip fixing portion by said lead fixing portion,
each said bonding wire extending from said corresponding bonding pad, across the insulated side of said lead fixing portion to said lead contacting area on one of said plurality of leads; and
a sealing resin covering and sealing said packaged IC chip, said bonding wires, said sheet-like coupling support member and said lead contact area on each of said leads.

### Claim 2 (depends on 1)

An IC package according to claim 1, wherein part of each said bonding wire is fixed through a resin to said insulated side.

### Claim 3 (depends on 2)

An IC package according to claim 2, wherein said resin for fixing said bonding wire is any one of a thermoplastic resin, a thermosetting resin, and an ultraviolet-curing resin each having a softening point lower than a wire bonding temperature.

### Claim 4 (depends on 1)

An IC package according to claim 1, the sheet-like coupling member further comprising a metal wiring layer arranged on said insulated side of at least one of said chip fixing portion and said lead fixing portion.

### Claim 5 (depends on 1)

An IC package according to claim 1, further comprising a metal heat spreader fixed on a surface different from said one major surface of said semiconductor chip.

### Claim 6 (depends on 1)

An IC package according to claim 1 further comprising a hanging lead for supporting a package having a distal end adhered and fixed to sad insulating adhesive side of said sheet-like coupling support member.