US5366794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape carrier for semiconductor apparatus
Assignee: Renesas Electronics Corp
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Filing: 1992-02-13
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Granted: 1994-11-22
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Expires: 2012-02-13
Abstract
Abstract A tape carrier for semiconductor apparatus and a method of manufacturing the tape carrier includes three or more layers and contact holes of small size. A peelable agent is applied to a planar substrate made of glass or the like, and plural insulating layers and plural conductive layers are alternatingly formed thereon in predetermined patterns. The peelable agent is then removed to peel the tape carrier from the substrate. The tape carrier includes the insulating layers and the conductive layers and has projection electrodes but no tape base.
Inventors
- 👤 Shin Nakao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:35
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/70; H10P72/74; H10W; H10W70/00; H10W70/01; H10W70/05; H10W70/40; H10W70/453; H10W70/60; H10W70/67; H10W70/68; H10W70/685; H10P72/7424; H10P72/743; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
A tape carrier for a semiconductor element comprising an electrically insulating tape including opposed first and second surfaces, an opening for receiving a semiconductor element, a plurality of generally parallel electrically conducting films embedded in the electrically insulating tape, electrical conductors embedded in the electrically insulating tape transverse to the electrically conducting films selectively electrically interconnecting the electrically conducting films, a projecting electrode projecting from the first surface of the electrically insulating tape and electrically connected to at least one of the electrically conducting films by one of the electrical conductors, and a test electrode flush with the second surface of the electrically insulating tape and electrically connected to at least one of the electrically conducting films by one of the electrical conductors.
Claim 2
Dependent Claim
123 words
A tape carrier for a semiconductor element comprising an electrically insulating tape including opposed first and second surfaces, an opening for receiving a semiconductor element, a plurality of generally parallel electrically conducting films embedded in the electrically insulating tape, electrical conductors embedded in the electrically insulating tape transverse to the electrically conducting films selectively electrically interconnecting the electrically conducting films, a projecting electrode projecting from the first surface of the electrically insulating tape and electrically connected to at least one of the electrically conducting films by one of the electrical conductors, and a test electrode flush with the second surface of the electrically insulating tape and electrically connected to at least one of the electrically conducting films by one of the electrical conductors.
Claim 3
Dependent Claim
13 words
The tape carrier of claim 1 wherein the electrically insulating tape is polyimide.
Claim 4
Dependent Claim
18 words
The tape carrier of claim 2 wherein the electrically insulating polyimide tape is 75 to 125 microns thick.
Claim 5
Dependent Claim
21 words
The tape carrier of claim 1 wherein the electrically conducting films are arranged in predetermined patterns within the electrically insulating tape.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-21 | 1998-05-23 | 1998-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-21 | 2002-05-23 | 2002-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-21 | 2006-05-23 | 2006-11-22 | $7700.00 | Window Closed / Lapsed |