US5235496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for packaging integrated circuits
Assignee: Texas Instruments Inc
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Filing: 1992-04-15
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Granted: 1993-08-10
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Expires: 2012-04-15
Abstract
Abstract The device comprises at least one printed circuit board (11,12) on which is fixed a heightening board (15) comprising at least one opening (16) for forming with the surface of the printed circuit board (12) located in facing relation to the opening, the bottom and the lateral walls of a cavity (17) for at least one integrated circuit (18) connected with the printed circuit carried by the board defining the bottom of the cavity by means of conductive wires (19). The cavity containing the integrated circuit is filled with a resin (22) completely covering the integrated circuit. The printed circuit board (11,12) is cut on its periphery along a line of through holes (23) provided with a metal coating (24) and connected to printed conductors of the board, metallized grooves (23,24) resulting from the cutting constituting connection terminals of the device.
Inventors
- 👤 Michel Chomette
- 👤 Robert J. Mathews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:05
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/685; H10W70/62; H10W70/65; H10W70/657; H05; H05K; H05K1/00; H05K1/18; H05K1/182; H05K3/00; H05K3/0097; H05K3/40; H05K3/403; H05K3/46; H05K3/4611; H10W74/00; H10W90/00; H10W90/701; H10W90/751; H10W90/754
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
144 words
Device for packaging integrated circuits, said device comprising at least one printed circuit board, a heightening board fixed to said printed circuit board and comprising at least one opening for forming with a surface of said printed circuit board located in facing relation to said opening, a bottom and lateral walls of a cavity, at least one integrated circuit disposed in said cavity, conductive wires connecting said integrated circuit to said printed circuit carried by said printed circuit board defining said bottom of said cavity, a resin filling said cavity so as to completely cover said integrated circuit, said printed circuit board being cut on the periphery thereof along a line of through holes therein which are provided with a metal coating and connected to printed conductors of said printed circuit board, metallized grooves resulting from said cutting constituting connection terminals of said device.
Claim 2
Dependent Claim
144 words
Device for packaging integrated circuits, said device comprising at least one printed circuit board, a heightening board fixed to said printed circuit board and comprising at least one opening for forming with a surface of said printed circuit board located in facing relation to said opening, a bottom and lateral walls of a cavity, at least one integrated circuit disposed in said cavity, conductive wires connecting said integrated circuit to said printed circuit carried by said printed circuit board defining said bottom of said cavity, a resin filling said cavity so as to completely cover said integrated circuit, said printed circuit board being cut on the periphery thereof along a line of through holes therein which are provided with a metal coating and connected to printed conductors of said printed circuit board, metallized grooves resulting from said cutting constituting connection terminals of said device.
Claim 3
Dependent Claim
39 words
Device according to claim 1, comprising a plurality of superposed printed circuit boards having printed circuits interconnected selectively by grooves resulting from the cutting of through holes provided with a metal coating disposed on the periphery of said device.
Claim 4
Dependent Claim
36 words
Device according to claim 1, wherein said cavity receives a plurality of integrated circuits connected by conductor wires to said conductors of said printed circuit board defining said bottom of said cavity for said integrated circuits.
Claim 5
Dependent Claim
26 words
Device according to claim 1, combined with and received on a printed circuit mother-board having conductive tracks connected to said terminals of said device 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) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-09 | 2005-02-08 | 2005-08-10 | $7700.00 | Window Closed / Lapsed |