US4666078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroless plated terminals of display panel
Assignee: Seiko Epson Corp
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Filing: 1986-02-04
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Granted: 1987-05-19
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Expires: 2006-02-04
Abstract
Abstract A display panel includes a transparent substrate, a transparent conductive, patterned metallic oxide layer including terminals disposed thereon, an electroless plated metal layer on the terminals and an electroless plated solder layer on the metal layer.
Inventors
- 👤 Yoshihiro Ohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:31
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; G02F1/13452; H; H05; H05K; H05K3/00; H05K3/36; H05K3/361; H05K3/363; H05K1/00; H05K1/02; H05K1/03; H05K1/0393; H05K2201/00; H05K2201/03; H05K2201/0302; H05K2201/0305; H05K2201/032; H05K2201/0326; H05K2203/00; H05K2203/07; H05K2203/0703; H05K2203/072; H05K3/22; H05K3/24; H05K3/244; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/3473
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
92 words
A display panel, comprising a transparent substrate, transparent, conductive, patterned metallic electrodes including display terminal portions disposed on a surface of said substrate and an electroless plated metal layer on the display terminal portions and a circuit substrate having circuit electrode terminal portions for electrical connection to the display terminal portions, said metal layer on the display terminal portions being plated to a thickness of about 500 Å to about 8100 Å and wherein the electroless plated metal layer and the terminal portions of the circuit terminal portions are connected by soldering.
Claim 2
Dependent Claim
92 words
A display panel, comprising a transparent substrate, transparent, conductive, patterned metallic electrodes including display terminal portions disposed on a surface of said substrate and an electroless plated metal layer on the display terminal portions and a circuit substrate having circuit electrode terminal portions for electrical connection to the display terminal portions, said metal layer on the display terminal portions being plated to a thickness of about 500 Å to about 8100 Å and wherein the electroless plated metal layer and the terminal portions of the circuit terminal portions are connected by soldering.
Claim 3
Dependent Claim
30 words
A display panel described in claim 1, wherein the electrodes comprise a transparent conductive metallic electrode selected from the group consisting of indium oxide, tin oxide and indium tin oxide.
Claim 4
Dependent Claim
23 words
A display panel as described in claim 1, wherein the metal layer is selected from the group consisting on nickel, copper and cobalt.
Claim 5
Dependent Claim
18 words
A display panel described in claim 3, further comprising an electroless solder layer plated on the metal layer.
Claim 6
Dependent Claim
26 words
A display panel as described in claim 4, wherein the solder layer is plated to a thickness of from about 1000 Å to about 20 μm.
Claim 7
Dependent Claim
56 words
A display panel as described in claim 3, wherein an electroless noble metal layer is plated to a thickness of between about 50 Å and about 1 μm on the metal layer and an electroless solder layer is plated to a thickness or from about 1000 Å to about 20 μm on the noble metal layer.
Claim 8
Dependent Claim
14 words
A display panel as described in claim 6, wherein the noble metal comprise gold.
Claim 9
Independent Claim
107 words
A method of manufacturing a display panel comprising providing a transparent substrate, transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon and placing said substrate in an electroless metal plating bath to selectively plate a metal layer on to the transparent, conductive layer display terminal portions, said metal layer on the display terminal portions being plated to a thickness of about 500 Å to 8100 Å and further comprising providing a circuit substrate having circuit electrode terminal portions for electrical connnection to the display terminal portions and connecting the electroless plated metal layer and the terminal portions of the circuit terminal portions by soldering.
Claim 10
Independent Claim
107 words
A method of manufacturing a display panel comprising providing a transparent substrate, transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon and placing said substrate in an electroless metal plating bath to selectively plate a metal layer on to the transparent, conductive layer display terminal portions, said metal layer on the display terminal portions being plated to a thickness of about 500 Å to 8100 Å and further comprising providing a circuit substrate having circuit electrode terminal portions for electrical connnection to the display terminal portions and connecting the electroless plated metal layer and the terminal portions of the circuit terminal portions by soldering.
Claim 11
Dependent Claim
28 words
A method as described in claim 8 wherein the electrodes comprise a metallic oxidized layer selected from the group consisting of tin oxide, indium oxide, indium tin oxide.
Claim 12
Dependent Claim
24 words
A method as described in claim 8, wherein the metal layer comprises a metal selected from the group consisting of nickel, copper and cobalt.
Claim 13
Dependent Claim
31 words
A method as described in claim 10 further comprising electroless plating a layer of from about 1000 Å to about 20 μm thickness of solder, onto the electroless plated metal layer.
Claim 14
Dependent Claim
52 words
A method as described in claim 10 further comprising electroless plating a noble metal layer of between about 50 Å and 1 μm thickness on to the metal layer and then electroless plating a layer of from about 1000 Å to about 20 μm thickness of solder onto the noble metal layer.
Claim 15
Dependent Claim
13 words
A method as described in claim 12, wherein the noble metal comprises gold.
Claim 16
Dependent Claim
43 words
A method as described in claim 8, wherein said metal layer is nickel and further comprising heat treating the nickel layer at a temperature of from about 80° C. to about 150° C. for a period of from 8 minutes to 5 hours.
Claim 17
Independent Claim
99 words
A method of soldering a display panel including a transparent substrate and transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon to a circuit substrate, comprising electroless plating a metal layer of from about 500 Å to about 50,000 Å thickness on to the display terminal portions, electroless plating a layer of solder of from about 1000 Å to about 200,000 Å thickness on to said metal layer, plating a layer of solder on to the end portion of an upper surface of the circuit substrate and compression soldering the transparent substrate to the circuit substrate.
Claim 18
Independent Claim
99 words
A method of soldering a display panel including a transparent substrate and transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon to a circuit substrate, comprising electroless plating a metal layer of from about 500 Å to about 50,000 Å thickness on to the display terminal portions, electroless plating a layer of solder of from about 1000 Å to about 200,000 Å thickness on to said metal layer, plating a layer of solder on to the end portion of an upper surface of the circuit substrate and compression soldering the transparent substrate to the circuit substrate.
Claim 19
Dependent Claim
20 words
A method as described in claim 15, wherein the electroless plated metal layer is selected from nickel, copper and cobalt.
Claim 20
Dependent Claim
25 words
A method as described in claim 15, wherein the electrodes comprise a matellic oxidized layer selected from tin oxide, indium oxide and indium tin oxide.
Claim 21
Dependent Claim
34 words
A method as described in claim 15, further comprising electroless plating a noble metal layer of from about 50 Å to about 1 μm thickness on to said metal layer prior to solder plating.
Claim 22
Independent Claim
96 words
A method of soldering a display panel including a transparent substrate and transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon to a circuit substrate, comprising electroless plating a metal layer of from about 500 Å to about 50,000 Å thickness on to the display terminal portions, electroless plating a noble metal layer of from about 50 Å to 10,000 Å thickness on to said metal layer, plating a solder layer on to the end portion of an upper surface of the circuit substrate and soldering the transparent substrate to the circuit substrate.
Claim 23
Independent Claim
96 words
A method of soldering a display panel including a transparent substrate and transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon to a circuit substrate, comprising electroless plating a metal layer of from about 500 Å to about 50,000 Å thickness on to the display terminal portions, electroless plating a noble metal layer of from about 50 Å to 10,000 Å thickness on to said metal layer, plating a solder layer on to the end portion of an upper surface of the circuit substrate and soldering the transparent substrate to the circuit substrate.
Claim 24
Dependent Claim
20 words
A method as described in claim 19, wherein the electroless plated metal layer is selected from nickel, copper and cobalt.
Claim 25
Dependent Claim
29 words
A method as described in claim 19, wherein the electrodes comprise a metallic oxidized layer selected from the group consisting of tin oxide, indium oxide and indium tin oxide.
Claim 26
Independent Claim
113 words
A method of manufacturing a display panel comprising providing a transparent substrate, transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon, placing said substrate in an electroless metal plating bath to selectively plate a metal layer to a thickness of from about 500 Å to 8100 Å on to the display terminal portions, coating a solder layer on said metal layer by dipping in a solder bath or using a soldering bit and further comprising providing a circuit substrate having circuit electrode terminal portions for electrical connection to the display terminal portions and connecting the electroless plated metal layer and the terminal portions of the circuit terminal portions by soldering.
Claim 27
Independent Claim
113 words
A method of manufacturing a display panel comprising providing a transparent substrate, transparent, conductive, patterned metallic electrodes including display terminal portions selectively disposed thereon, placing said substrate in an electroless metal plating bath to selectively plate a metal layer to a thickness of from about 500 Å to 8100 Å on to the display terminal portions, coating a solder layer on said metal layer by dipping in a solder bath or using a soldering bit and further comprising providing a circuit substrate having circuit electrode terminal portions for electrical connection to the display terminal portions and connecting the electroless plated metal layer and the terminal portions of the circuit terminal portions by soldering.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |