US5900581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin sealing structure for elements
Assignee: Nihon Dempa Kogyo Co Ltd
•
Filing: 1997-09-19
•
Granted: 1999-05-04
•
Expires: 2017-09-19
Abstract
Abstract A resin sealing structure according to the invention has convex parts formed in the vicinities of the perimeters of elements on a substrate to prevent thereby the resin, when it is applied for sealing, from invading the wiring parts of the elements. There may be narrow enough gaps between the substrate and the elements not to allow the resin to enter. This structure enables resin sealing to be accomplished at a high yield and dispenses with metallic caps or the like.
Inventors
- 👤 Kenichi Ootake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:52
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/111; H10W74/114; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236; H10W72/07251; H10W72/20; H10W72/251; H10W72/252; H10W90/00; H10W90/701; H10W90/721; H10W90/724
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
75 words
A structure for sealing an electronic element comprising: a substrate; an electronic element electrically connected to said substrate by a plurality of bumps forming a space between said substrate and said electronic element; a convex part formed on said substrate opposite a perimeter of said electronic element, wherein said element and said convex part are spaced from each other; and a resin forming a seal around the perimeter of the element and the convex part.
Claim 2
Dependent Claim
75 words
A structure for sealing an electronic element comprising: a substrate; an electronic element electrically connected to said substrate by a plurality of bumps forming a space between said substrate and said electronic element; a convex part formed on said substrate opposite a perimeter of said electronic element, wherein said element and said convex part are spaced from each other; and a resin forming a seal around the perimeter of the element and the convex part.
Claim 3
Dependent Claim
18 words
The structure of claim 1 wherein the convex part and the substrate are formed of the same material.
Claim 4
Dependent Claim
14 words
The structure of claim 1 wherein the resin covers the entirety of the element.
Claim 5
Dependent Claim
45 words
The structure of claim 1 further including a plurality of elements electrically connected to said substrate, a convex part formed on said substrate opposite the perimeter of each element and a resin forming a seal around the perimeter of the each element and convex part.
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) | 2002-05-03 | 2002-11-02 | 2003-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-03 | 2006-11-02 | 2007-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-03 | 2010-11-02 | 2011-05-04 | $7700.00 | Window Closed / Lapsed |