US6040235A — Methods and apparatus for producing integrated ci…

Claim 1

Independent Claim 121 words

A method for producing integrated circuit devices including the steps of: producing a plurality of integrated circuits on a wafer having first and second planar surfaces, each of the integrated circuits including a multiplicity of pads; waferwise attaching to both said surfaces of the wafer a layer of protective material; thereafter partially cutting into the wafer and the protective material attached thereto, thereby to define notches along outlines of a plurality of prepackaged integrated circuit devices; forming metal contacts onto the plurality of prepackaged integrated circuit devices while they are still joined together on the wafer, at least a portion of said metal contacts extending into the notches; and thereafter separating the plurality of prepackaged integrated circuit devices into individual devices.

Claim 2

Independent Claim 121 words

A method for producing integrated circuit devices including the steps of: producing a plurality of integrated circuits on a wafer having first and second planar surfaces, each of the integrated circuits including a multiplicity of pads; waferwise attaching to both said surfaces of the wafer a layer of protective material; thereafter partially cutting into the wafer and the protective material attached thereto, thereby to define notches along outlines of a plurality of prepackaged integrated circuit devices; forming metal contacts onto the plurality of prepackaged integrated circuit devices while they are still joined together on the wafer, at least a portion of said metal contacts extending into the notches; and thereafter separating the plurality of prepackaged integrated circuit devices into individual devices.

Claim 3

Dependent Claim 21 words

A method according to claim 1 and wherein the step of partially cutting exposes sectional surfaces of the multiplicity of pads.

Claim 4

Dependent Claim 32 words

A method according to claim 1 and wherein the step of partially cutting cuts pads so as to simultaneously define electrical contact regions for both of a pair of adjacent integrated circuits.

Claim 5

Independent Claim 57 words

A method for producing integrated circuit devices including the steps of: producing a plurality of integrated circuits on a wafer, each of the integrated circuits including a multiplicity of pads; and thereafter partially cutting the wafer, thereby to define notches along outlines of a plurality of integrated circuits thereby exposing sectional surfaces of the multiplicity of pads.

Claim 6

Independent Claim 57 words

A method for producing integrated circuit devices including the steps of: producing a plurality of integrated circuits on a wafer, each of the integrated circuits including a multiplicity of pads; and thereafter partially cutting the wafer, thereby to define notches along outlines of a plurality of integrated circuits thereby exposing sectional surfaces of the multiplicity of pads.

Claim 7

Dependent Claim 60 words

A method according to claim 4 and wherein the step of partially cutting cuts a plurality of pads including some which communicate with a one of a pair of adjacent integrated circuits and others with communication with another of the pair of adjacent integrated circuits, thereby to define electrical contact regions for both of said pair of adjacent integrated circuits.

Claim 8

Dependent Claim 54 words

A method according claim 4 and also comprising the steps of providing a conductive layer over notched edges of the integrated circuits in electrical communication with the exposed edges of the pads and wherein portions of the conductive layer communicating with separate ones of the multiplicity of pads are electrically separated from one another.

Claim 9

Dependent Claim 28 words

A method according to claim 6 and wherein the step of providing a conductive layer comprises forming a conductive coating also over non-edge portions of the integrated circuit.

Claim 10

Dependent Claim 33 words

A method according to claim 4 and wherein the partially cutting step is carried out at locations whereby the silicon substrate is not exposed at the notched edges of the resulting integrated circuits.

Claim 11

Dependent Claim 33 words

A method according to claim 4 and wherein prior to the partially cutting step, the integrated circuits are surrounded on their planar surfaces by protective insulation layers and on their edges by epoxy.

Claim 12

Dependent Claim 26 words

A method according to claim 4 and wherein a thermal bonding pad is formed on at least one outer planar surface of said integrated circuit devices.

Claim 13

Dependent Claim 23 words

A method according to claim 4 and also comprising the step of providing an integrally formed ground plane in said integrated circuit devices.

Claim 14

Dependent Claim 23 words

A method according to claim 10 and wherein said protective insulation layer is transparent to radiation which is used for erasing EPROM devices.

Claim 15

Dependent Claim 24 words

A method according to claim 12 and also comprising forming metal contacts in mutually staggered relationship onto a planar surface of said integrated circuit.

Claim 16

Dependent Claim 24 words

A method according to claim 13 and also comprising forming metal contacts which extend onto surfaces perpendicular to said first and second planar surfaces.

Claim 17

Dependent Claim 131 words

Apparatus for producing integrated circuit devices including: apparatus for producing a plurality of integrated circuits on a wafer having opposite planar surfaces, each of the integrated circuits including a multiplicity of pads; apparatus for waferwise attaching to both said surfaces of the wafer a layer of protective packaging material; and partially cutting apparatus for thereafter partially cutting the wafer and the protective material attached thereto, thereby to define notches along outlines of a plurality of prepackaged integrated circuit devices; metal coating apparatus for forming metal contacts onto the plurality of prepackaged integrated circuit devices while they are still joined together on the wafer, at least a portion of the metal contacts extending into the notches; and separating apparatus for thereafter separating the plurality of prepackaged integrated circuit devices into individual devices.

Claim 18

Dependent Claim 131 words

Apparatus for producing integrated circuit devices including: apparatus for producing a plurality of integrated circuits on a wafer having opposite planar surfaces, each of the integrated circuits including a multiplicity of pads; apparatus for waferwise attaching to both said surfaces of the wafer a layer of protective packaging material; and partially cutting apparatus for thereafter partially cutting the wafer and the protective material attached thereto, thereby to define notches along outlines of a plurality of prepackaged integrated circuit devices; metal coating apparatus for forming metal contacts onto the plurality of prepackaged integrated circuit devices while they are still joined together on the wafer, at least a portion of the metal contacts extending into the notches; and separating apparatus for thereafter separating the plurality of prepackaged integrated circuit devices into individual devices.

Claim 19

Dependent Claim 40 words

Apparatus according to claim 15 and wherein the partially cutting apparatus exposes sectional surfaces of the multiplicity of pads and cuts pads which communicate with adjacent integrated circuits, thereby to simultaneously define electrical contact regions for the adjacent integrated circuits.

Claim 20

Dependent Claim 60 words

Apparatus for producing integrated circuit devices including: apparatus for producing a plurality of integrated circuits on a wafer, each of the integrated circuits including a multiplicity of pads; and partially cutting apparatus for thereafter partially cutting the wafer, thereby to define notches along outlines of a plurality of integrated circuit elements which expose sectional surfaces of the multiplicity of pads.

Claim 21

Dependent Claim 60 words

Apparatus for producing integrated circuit devices including: apparatus for producing a plurality of integrated circuits on a wafer, each of the integrated circuits including a multiplicity of pads; and partially cutting apparatus for thereafter partially cutting the wafer, thereby to define notches along outlines of a plurality of integrated circuit elements which expose sectional surfaces of the multiplicity of pads.

Claim 22

Dependent Claim 58 words

Apparatus according to claim 17 and wherein the partially cutting apparatus cuts a plurality of pads including some which communicate with a one of a pair of adjacent integrated circuits and others with communication with another of the pair of adjacent integrated circuits, thereby to define electrical contact regions for both of said pair of adjacent integrated circuits.

Claim 23

Dependent Claim 48 words

Apparatus according to claim 17 and also comprising apparatus for providing a conductive layer over notched edges of the integrated circuit in electrical communication with the edges of the pads and for electrically separating portions of the conductive layer communicating with separate ones of the multiplicity of pads.

Claim 24

Dependent Claim 23 words

Apparatus according to claim 19 and wherein the conductive layer comprises a conductive coating over more than the edge of the integrated circuit.

Claim 25

Dependent Claim 31 words

Apparatus according to claim 17 and wherein the partially cutting apparatus is operative at locations whereby the silicon substrate is not exposed at the notched edges of the resulting integrated circuits.

Claim 26

Dependent Claim 44 words

An integrated circuit device comprising: an integrated circuit die having top and bottom surfaces formed of electrically insulative and mechanically protective material and electrically insulative edge surfaces having exposed sections of conductive pads and being inclined with respect to the top and bottom surfaces.

Claim 27

Dependent Claim 44 words

An integrated circuit device comprising: an integrated circuit die having top and bottom surfaces formed of electrically insulative and mechanically protective material and electrically insulative edge surfaces having exposed sections of conductive pads and being inclined with respect to the top and bottom surfaces.

Claim 28

Dependent Claim 12 words

An integrated circuit device manufactured according to the method of claim 1.

Claim 29

Dependent Claim 38 words

An integrated circuit device according to claim 23 and also including at least one of an integrally formed thermal contact to a heat sink on an outer planar surface of the device and an integrally formed ground plane.

Claim 30

Dependent Claim 23 words

Apparatus according to claim 15 and also comprising metal contacts arranged in mutually staggered relationship onto a planar surface of said integrated circuit.

Claim 31

Dependent Claim 22 words

Apparatus according to claim 15 and also comprising metal contacts which extend onto surfaces perpendicular to said first and second planar surfaces.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2003-03-21	2003-09-20	2004-03-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2007-03-21	2007-09-20	2008-03-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2011-03-21	2011-09-20	2012-03-21	$7700.00	Window Closed / Lapsed

Methods and apparatus for producing integrated circuit devices

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag