US4766671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing ceramic electronic device
Assignee: NEC Corp
•
Filing: 1986-10-24
•
Granted: 1988-08-30
•
Expires: 2006-10-24
Abstract
Abstract A method of manufacturing a ceramic electronic device includes the steps of: forming a pattern of a predetermined shape made of a photosensitive resin; forming an electrical circuit element on a ceramic green sheet; stacking and pressing the pattern, the ceramic green sheet having the electrical circuit element thereon, and at least one ceramic green sheet to prepare a laminated body; and sintering the laminated body. A ceramic electronic device integrally including a cavity and the electrical circuit element therein is manufactured by this method.
Inventors
- 👤 Kazuaki Utsumi
- 👤 Hideo Takamizawa
- 👤 Mitsuo Tsuzuki
- 👤 Michihisa Suga
- 👤 Sadayuki Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:07
CPC Classifications
H; H01; H01K; H01K3/00; H01K3/22; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1607; B41J2/1609; B41J2/1621; B41J2/1631; B41J2/1632; C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5194; C04B41/80; C04B41/81; C04B41/85; C04B41/88; H03; H03H; H03H9/00; H03H9/15; H03H9/17; H03H9/176; H03H9/46; H03H9/54; H03H9/56; H03H9/562; H10; H10D; H10D84/00; H10D84/01; B41J2/14; B41J2/14201; B41J2/14209; B41J2002/14217; C04B2111/00; C04B2111/00474; C04B2111/00844; H04; H04R; H04R17/00; H04R17/04; H04R17/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49158
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
106 words
A method of manufacturing a ceramic electronic device comprising steps of: forming a material into a pattern of a predetermined shape, said material decomposing when it is heated to a temperature which is not higher than a sintering temperature of a ceramic material; forming an electrical circuit element in a ceramic green sheet of said ceramic material; stacking said pattern, said ceramic green sheet having said electrical circuit element, and at least another ceramic green sheet to obtain a laminated body; and sintering said laminated body to obtain a sintering body from which said material formed into said pattern has been removed by a decomposition thereof.
Claim 2
Independent Claim
106 words
A method of manufacturing a ceramic electronic device comprising steps of: forming a material into a pattern of a predetermined shape, said material decomposing when it is heated to a temperature which is not higher than a sintering temperature of a ceramic material; forming an electrical circuit element in a ceramic green sheet of said ceramic material; stacking said pattern, said ceramic green sheet having said electrical circuit element, and at least another ceramic green sheet to obtain a laminated body; and sintering said laminated body to obtain a sintering body from which said material formed into said pattern has been removed by a decomposition thereof.
Claim 3
Dependent Claim
39 words
A method according to claim 1, further including the steps of removing a binder so as to decompose and remove an organic material contained in said laminated body, and cutting said sintered body into pieces of a predetermined shape.
Claim 4
Dependent Claim
56 words
A method according to claim 1, wherein the step of forming said material into a predetermined pattern includes the step of forming a photosensitive resin layer on a carrier film, bringing a predetermined photomask into contact with said photosensitive resin layer, exposing said photosensitive resin layer with light, and peeling said pattern from said carrier film.
Claim 5
Dependent Claim
53 words
A method according to claim 1, wherein the step of forming said electrical circuit element in said green sheet includes the step of forming a through hole by punching and by printing conductive, resistive and dielectric pastes on said green sheet so as to form an electrode, a resistor, and a capacitor thereon.
Claim 6
Dependent Claim
80 words
A method according to claim 1, wherein the step of forming said laminated body includes steps of cutting said material forming said pattern, said ceramic green sheet having said electrical circuit element, and said at least another ceramic green sheet into pieces of a predetermined size which stack in a mold, and stacking and then pressing said pattern, said ceramic green sheet, and said at least another ceramic green sheet in said mold, all of which have the predetermined size.
Claim 7
Dependent Claim
15 words
A method according to claim 5, wherein heat is applied to said mold under pressure.
Claim 8
Independent Claim
144 words
A method of manufacturing a ceramic electronic device, comprising steps of: forming a pattern of a predetermined shape made of a photosensitive resin; filling a ceramic paste in a portion excluding said pattern to form a ceramic green sheet incorporating said pattern; forming an electrical circuit element on another green sheet; stacking and pressing said ceramic green sheet incorporating said pattern, said another ceramic green sheet having said electrical circuit element, and at least still another ceramic sheet to form form a laminated body; removing a binder so as to decompose and remove an organic material contained in said laminated body; sintering said laminated body after removing of the binder is performed to obtain a sintered body in which is formed a cavity having a shape identical to said pattern; and cutting said sintering body including said cavity into pieces of a predetermined size.
Claim 9
Independent Claim
144 words
A method of manufacturing a ceramic electronic device, comprising steps of: forming a pattern of a predetermined shape made of a photosensitive resin; filling a ceramic paste in a portion excluding said pattern to form a ceramic green sheet incorporating said pattern; forming an electrical circuit element on another green sheet; stacking and pressing said ceramic green sheet incorporating said pattern, said another ceramic green sheet having said electrical circuit element, and at least still another ceramic sheet to form form a laminated body; removing a binder so as to decompose and remove an organic material contained in said laminated body; sintering said laminated body after removing of the binder is performed to obtain a sintered body in which is formed a cavity having a shape identical to said pattern; and cutting said sintering body including said cavity into pieces of a predetermined size.
Claim 10
Independent Claim
141 words
A method of manufacturing an ink jet head comprising steps of: forming a material into a pattern having a shape which is identical to a shape of an ink passage of said ink jet head, said material decomposing when it is heated to a temperature which is not higher than a sintering temperature of a ceramic material; forming a plurality of ceramic green sheets made of said ceramic material, at least one of said plurality of ceramic green sheets being formed with an electrical circuit element therein; stacking said material formed into said pattern and said plurality of ceramic green sheets to obtain a laminated body; sintering said laminated body to obtain a sintered body from which said material formed into said pattern has been removed by a decomposition thereof; and cutting said sintered body to obtain said ink jet head.
Claim 11
Independent Claim
141 words
A method of manufacturing an ink jet head comprising steps of: forming a material into a pattern having a shape which is identical to a shape of an ink passage of said ink jet head, said material decomposing when it is heated to a temperature which is not higher than a sintering temperature of a ceramic material; forming a plurality of ceramic green sheets made of said ceramic material, at least one of said plurality of ceramic green sheets being formed with an electrical circuit element therein; stacking said material formed into said pattern and said plurality of ceramic green sheets to obtain a laminated body; sintering said laminated body to obtain a sintered body from which said material formed into said pattern has been removed by a decomposition thereof; and cutting said sintered body to obtain said ink jet head.
Claim 12
Dependent Claim
30 words
The method according to claim 8, wherein said ink passage includes a nozzle aperture, an ink channel, a pressure chamber, and an ink supply portion of said ink jet head.
References Cited (Backward Citations)
US3948706A
Cited
US4137628A
Cited
US4345955A
Cited
US4490429A
Cited
US4510000A
Cited
US4641425A
Cited
US4620264A
Cited
US4654095A
Cited
US4680859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |