US5113100A — Energization coil device, a method of making such…

Claim 1

Independent Claim 98 words

An energization coil device comprising: a substantially planar support element (30) consisting of a semi-conductive substrate; at least one first planar electromagnetic coil (BI) produced by metallization to form a first layer (CI) in the vicinity of one surface (F1) of the semi-conductive substrate (30); at least one second planar coil electromagnetic (BS) forming a second layer (CS) superposed on the first layer (CI) in the vicinity of said surface (F1) of the semi-conductive substrate (30), said coil layers (CI, CS) forming a monolithic and integrated electromagnetic arrangement of upper and lower adjacent layers on a common substrate.

Claim 2

Dependent Claim 98 words

An energization coil device comprising: a substantially planar support element (30) consisting of a semi-conductive substrate; at least one first planar electromagnetic coil (BI) produced by metallization to form a first layer (CI) in the vicinity of one surface (F1) of the semi-conductive substrate (30); at least one second planar coil electromagnetic (BS) forming a second layer (CS) superposed on the first layer (CI) in the vicinity of said surface (F1) of the semi-conductive substrate (30), said coil layers (CI, CS) forming a monolithic and integrated electromagnetic arrangement of upper and lower adjacent layers on a common substrate.

Claim 3

Dependent Claim 51 words

A device according to claim 1, wherein the first and second layers (CI, CS) include an equal number n of first and second coils, respectively; said first coils (BI) being angularly offset on the substrate (30) in relation to said second coils (BS) by an angle (a) of about 180/n degrees.

Claim 4

Dependent Claim 51 words

A device according to claim 2, wherein said coils (BI 1-4 ) of one layer have respective outer terminals (e1-4), said coils (BS 5-8 ) of the other layer have respective inner terminals (i5-8), and said outer terminals are electrically connected by respective "inter-planar" junctions (60) to respective said inner terminals.

Claim 5

Dependent Claim 44 words

A device according to claim 3, wherein each "inter-planar" junction (60) is electrically connected by a respective lead (Ci 5-8 ) extending outwardly from the coils and terminated by a pair of fork portions (70) electrically connected to respective control elements (C 1-8 ).

Claim 6

Dependent Claim 27 words

A device according to claim 4, wherein said lead (CI 5-8 ) is disposed in the same plane as said one layer of coils (BI 1-4 ).

Claim 7

Dependent Claim 128 words

A device according to claim 2, wherein an outer terminal of n-1 coils (BS 16-18 ) of one layer (CS) is electrically connected to a nearest inner terminal of a respective one of n-1 corresponding coils (BI 11-14 ) of the other layer (CI), an outer terminal of the n coils (BI 11-14 ) of said other layer (CI) is electrically connected to a nearest inner terminal of a respective one of the n coils (BS 15-18 ) of said one layer (CS), and the outer terminal of one coil (BS 15 ) of said one layer (CS) and the inner terminal of one coil (BI 12 ) of said other layer (CI) are connected to a control element (C9) to series connect the coils of said layers.

Claim 8

Dependent Claim 111 words

A device according to claim 2, wherein inner terminals of the coils (BI 21-24 , BS 25-28 ) of each layer are connected together by leads converging towards a central point of the substrate and are connected by an "inter-planar" junction (80), one of the inner terminals (i22) having a lead (82) extending outwardly from the coils for connection to a control element (C 10 ), outer terminals of all coils (BI 21-24 , BS 25-28 ) being connected to one another by a peripheral lead (84) that surrounds said coils at least partially and which is connected to said control element (C10) to parallel connect the two layers of coils.

Claim 9

Dependent Claim 57 words

A device according to claim 2, wherein each coil (BS 35-38 ) of one of the layers is coaxially disposed in relation to a respective one of the coils (BI 31-34 ) of the other layer, the coils (BS 35-38 ) of one layer being directly superposed on the coils (BI 31-34 ) of the other layer.

Claim 10

Independent Claim 79 words

A method of producing an energization coil device, which comprises forming on one surface (F1) of a semi-conductor substrate (30), by a photolithographic process; simultaneously, a first layer of electromagnetic coils (BI) and leads for electrically connecting said electromagnetic coils with a control circuit; at least one "inter-planar" junctions (60); simultaneously and superposed on the first layer, a second layer of electromagnetic coils (BS) and leads for electrically connecting said coils of said second layer with a control circuit.

Claim 11

Independent Claim 79 words

A method of producing an energization coil device, which comprises forming on one surface (F1) of a semi-conductor substrate (30), by a photolithographic process; simultaneously, a first layer of electromagnetic coils (BI) and leads for electrically connecting said electromagnetic coils with a control circuit; at least one "inter-planar" junctions (60); simultaneously and superposed on the first layer, a second layer of electromagnetic coils (BS) and leads for electrically connecting said coils of said second layer with a control circuit.

Claim 12

Dependent Claim 55 words

A method according to claim 9, which comprises forming, at the same time as the first layer (CI) of coils (BI 1-4 ), the leads (Ci 5-8 ) of the second layer, and, conversely, forming, at the same time as the second layer, (CS) the leads (Ci 1-4 ) of the first coil layer (CI).

Claim 13

Dependent Claim 153 words

An electromagnetic micromotor comprising a stator (2) and a rotor (1) pivotable on and relatively to said stator (2) about a geometrical axis of rotation (A), said rotor (1) and said stator (2) providing a space forming an air-gap (3) in which are disposed magnetized means (8) and an energization coil device; said energization coil device comprising; a substantially planar support element (30) consisting of a semi-conductive substrate; at least one first planar electromagetic coil (BI) produced by metallization to form a first layer (CI) in the vicinity of one surface (F1) of the substrate (30); and at least one second planar electromagnetic coil (BS) forming a second layer (CS) superposed on the first layer (CI) in the vicinity of said surface (F1) of the semi-conductive substrate (30), said first and second coil layers (CI, CS) forming a monolithic and integrated electromagnetic arrangement of upper and lower adjacent layers on a common substrate.

Claim 14

Dependent Claim 153 words

An electromagnetic micromotor comprising a stator (2) and a rotor (1) pivotable on and relatively to said stator (2) about a geometrical axis of rotation (A), said rotor (1) and said stator (2) providing a space forming an air-gap (3) in which are disposed magnetized means (8) and an energization coil device; said energization coil device comprising; a substantially planar support element (30) consisting of a semi-conductive substrate; at least one first planar electromagetic coil (BI) produced by metallization to form a first layer (CI) in the vicinity of one surface (F1) of the substrate (30); and at least one second planar electromagnetic coil (BS) forming a second layer (CS) superposed on the first layer (CI) in the vicinity of said surface (F1) of the semi-conductive substrate (30), said first and second coil layers (CI, CS) forming a monolithic and integrated electromagnetic arrangement of upper and lower adjacent layers on a common substrate.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-05-12	1995-11-11	1996-05-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-05-12	1999-11-11	2000-05-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-05-12	2003-11-11	2004-05-12	$7700.00	Window Closed / Lapsed

Energization coil device, a method of making such a device and an electromagnetic micromotor fitted therewith

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