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US3560813A Expired / Lapsed US ⏱️ 0.0 years remaining

Hybridized monolithic array package

Assignee: Fairchild Semiconductor Corp
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Filing: 1969-03-13
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Granted: 1971-02-02
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Expires: 1989-03-13
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Abstract

Abstract Prior to packaging, support and interconnect leads are bonded to a semiconductor die containing light-sensitive components, enabling the photoresponse of each component to be tested. A plurality of similar semiconductor dice are then selected according to a desired photoresponse, and can be assembled into a package. The need for additional bonding with respect to the die is eliminated. Unwanted variations in photoresponse during the packaging process are prevented from occurring, and the similarity in photoresponse between components is maintained.

Inventors

  • 👤 William S Phy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 16:48
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/153; H10F; H10F99/00; H10W90/00; H10W90/701; H10W90/751; H10W90/756; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49004; Y10T29/49117; Y10T29/49121

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 27 words
The package recited in claim 1 wherein the connection means comprises a conductive wire extending from the die to the second lead and electrically connected to both.
Claim 2
Dependent Claim 23 words
The package recited in claim 1 further defined by a member extending from a wall of each cavity to support the first lead.
Claim 3
Dependent Claim 13 words
The package recited in claim 1 wherein the housing comprises a dielectric material.
Claim 4
Dependent Claim 12 words
The package recited in claim 4 wherein the housing comprises molded plastic.
Claim 5
Dependent Claim 15 words
The structure recited in claim 1 wherein the die is bonded to the first lead.
Claim 6
Dependent Claim 23 words
The structure recited in claim 1 wherein the protective layer comprises a thermosetting liquid encapsulant cured into a rigid, scratch- and solvent-resistant surface.
Claim 7
Dependent Claim 28 words
The structure as defined in claim 6 wherein the encapsulant is selected from a group consisting of a clear thermosetting liquid acrylic, polyester, epoxy, or a combination thereof.
Claim 8
Dependent Claim 260 words
In a method of assembling a plurality of semiconductor dice into a package, the steps comprising: bonding each die to the first terminal lead in a corresponding pair of terminal leads of conductive material, a separate pair of terminal leads existing for each die, whereby the first lead supports the bonded die and makes electrical contact to a portion thereof; bonding a portion of a corresponding conductive wire to another portion of each die so that electrical contact is made thereto, a separate conductive wire existing for each die; testing each die via the respective first lead and wire for a desired photoresponse; inserting each pair of terminal leads to which is attached a die yielding the desired photoresponse into a corresponding one of a plurality of cavities located within a housing the first lead in each pair of terminal leads supporting a die having the desired photoresponse, each cavity extending to a selected external surface of the housing and formed so that terminal leads placed therein are kept electrically isolated, each terminal lead extending through the housing, each die being aligned so that light can be applied to a principal light-sensitive surface of the die; bonding another portion of each conductive wire to the second lead of the corresponding terminal lead pair so that electrical contact is made thereto; and filling each cavity with a transparent encapsulant that surrounds exposed portions of each die and its corresponding pair of terminal leads, the encapsulant extending to at least one selected external surface to render the latter substantially planar in shape.
Claim 9
Dependent Claim 40 words
The process recited in claim 9 wherein a plurality of light-sensitive dice are inserted into a respective plurality of cavities located within the housing, one die for each cavity, thereby forming a photoarray package comprising components having a desired photoresponse.

References Cited (Backward Citations)

US2606960A Cited
US2853662A Cited
US2964831A Cited
US3223903A Cited
US3231797A Cited
US3300646A Cited
US3389267A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-02-01 1974-08-03 1975-02-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-01 1978-08-03 1979-02-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-01 1982-08-03 1983-02-02 $7700.00 Window Closed / Lapsed

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