US5410181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Assembly for mounting an electronic device having an optically erasable surface
Assignee: Intellectual Ventures II LLC
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Filing: 1994-06-20
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Granted: 1995-04-25
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Expires: 2014-06-20
Abstract
Abstract An integrated circuit (106) having an optically erasable portion (114) is joined to a substrate (102) such that the optically erasable portion faces the substrate. The substrate (102) includes an aperture (104) that exposes the optically erasable portion (114) of the integrated circuit providing erasing capability to the integrated circuit (106). A plug (110) impermeable to light may be inserted into the aperture (104) to provide a sealed window to the optically erasable portion (114) of the integrated circuit (106).
Inventors
- 👤 James A. Zollo
- 👤 Barbara R. Doutre
- 👤 Rudy Yorio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:51
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/681; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236; H10W72/20; H10W72/251; H10W72/252; H10W72/50; H10W72/551; H10W72/552; H10W72/851; H10W72/874; H10W72/884; H10W90/00; H10W90/701; H10W90/731; H10W90/737
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
An electronic assembly, comprising: a substrate having first and second surfaces and an aperture through said first and second surfaces; a semiconductor having an optical port for receiving light of a certain wavelength, said semiconductor electrically attached to the substrate such that the optical port faces the first surface of the substrate, and said aperture aligned so as to expose the optical port; and a removable plug fitting into said aperture, said removable plug providing a sealed window to said optical port.
Claim 2
Dependent Claim
82 words
An electronic assembly, comprising: a substrate having first and second surfaces and an aperture through said first and second surfaces; a semiconductor having an optical port for receiving light of a certain wavelength, said semiconductor electrically attached to the substrate such that the optical port faces the first surface of the substrate, and said aperture aligned so as to expose the optical port; and a removable plug fitting into said aperture, said removable plug providing a sealed window to said optical port.
Claim 3
Dependent Claim
32 words
An electronic assembly as described in claim 1, further comprising an underfill material substantially filling a space about the removable plug between the semiconductor and the substrate without blocking the optical port.
Claim 4
Dependent Claim
18 words
An electronic assembly as described in claim 2, wherein the underfill material comprises a light blocking underfill material.
Claim 5
Dependent Claim
18 words
A electronic assembly as described in claim 1, wherein the light of a certain wavelength comprises ultraviolet light.
Claim 6
Dependent Claim
24 words
An electronic assembly as described in claim 1, wherein said semiconductor is electrically attached to the substrate using a controlled collapse chip connection process.
Claim 7
Dependent Claim
89 words
An electronic assembly, comprising: a substrate having a metallization pattern on at least a first surface; an erasable programmable read only memory (EPROM) die having an active surface, said EPROM die electrically attached to the metallization pattern of the substrate with the active surface facing the first surface of the substrate; an opening formed in the substrate so as to expose an optically erasable surface of the EPROM die; and a removable plug fitting into said opening, said removable plug providing a sealed window to said optically erasable surface.
Claim 8
Dependent Claim
89 words
An electronic assembly, comprising: a substrate having a metallization pattern on at least a first surface; an erasable programmable read only memory (EPROM) die having an active surface, said EPROM die electrically attached to the metallization pattern of the substrate with the active surface facing the first surface of the substrate; an opening formed in the substrate so as to expose an optically erasable surface of the EPROM die; and a removable plug fitting into said opening, said removable plug providing a sealed window to said optically erasable surface.
Claim 9
Dependent Claim
41 words
An electronic assembly as described in claim 6, further comprising light blocking underfill substantially filling a space about the removable plug between the EPROM die and the substrate in such a manner so as not to block said optically erasable surface.
Claim 10
Dependent Claim
28 words
An electronic assembly as described in claim 6, wherein the substrate includes programming ports electrically attached to the metallization pattern of the substrate for programming the EPROM die.
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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) | 1998-04-24 | 1998-10-24 | 1999-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-24 | 2002-10-24 | 2003-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-24 | 2006-10-24 | 2007-04-25 | $7700.00 | Window Closed / Lapsed |