Hendrik B Hendriks

US Patent:

45226679, Jun 11, 1985

Filed:

Nov 22, 1982

Appl. No.:

6/443275

Inventors:

John R. Hanson - Richmond MA
James L. Hauser - Lenox MA
James F. Kilfeather - Pittsfield MA
Hendrik B. Hendriks - Becket MA

Assignee:

General Electric Company - Schenectady NY

International Classification:

B32B 3116
B32B 3106
B32B 3112
H05K 100

US Classification:

156 87

Abstract:

A multi-layer circuit board laminate is disclosed having a controlled thermal coefficient of expansion which is particularly useful in conjunction with leadless components. The subject invention includes incorporating one or more stabilizing metal sheets into a composite multi-layer circuit board laminate assembly. The stabilizing metal sheets function to significantly reduce the circuit board laminate's thermal coefficient of expansion, thereby enabling the laminate to be used in conjunction with leadless electronic components. In addition, a novel method is disclosed for fabricating one embodiment of the subject invention and includes a unique two-step lamination process which permits apertures to be provided in the metal stabilizing layer and allows the bonding epoxy resin to solidify within the apertures, while simultaneously preventing the entrapment of air. In another embodiment of the subject invention the stabilizing layer is formed of a composite metal-dielectric laminate enabling the layer to be provided with a non-contiguous floating type pattern.

US Patent:

44967934, Jan 29, 1985

Filed:

Jan 26, 1983

Appl. No.:

6/461061

Inventors:

John R. Hanson - Richmond MA
James L. Hauser - Lenox MA
James F. Kilfeather - Pittsfield MA
Hendrik B. Hendriks - Becket MA

Assignee:

General Electric Company - Schenectady NY

International Classification:

H05K 105

US Classification:

174 685

Abstract:

The subject invention relates to a multi-layer circuit board laminate which includes one or more stabilizing metal sheets for reducing the thermal coefficient of expansion of the laminate. In addition, a novel two-step fabrication method is disclosed which permits apertures to be provided in the metal stabilizing layer and prevents the entrapment of air in those apertures as they are filled with epoxy. A multi-layer circuit board laminate is disclosed having a controlled thermal coefficient of expansion which is particularly useful in conjunction with leadless components. The subject invention includes incorporating one or more stabilizing metal sheets into a composite multi-layer circuit board laminate assembly. The stabilizing metal sheets function to significantly reduce the circuit board laminate's thermal coefficient of expansion, thereby enabling the laminate to be used in conjunction with leadless electronic components. In addition, a novel method is disclosed for fabricating one embodiment of the subject invention and includes a unique two-step lamination process which permits apertures to be provided in the metal stabilizing layer and allows the bonding epoxy resin to solidify within the apertures, while simultaneously preventing the entrapment of air.

US Patent:

42335221, Nov 11, 1980

Filed:

Oct 30, 1978

Appl. No.:

5/956278

Inventors:

William L. Grummer - Cheshire MA
Hendrik B. Hendriks - Becket MA

Assignee:

General Electric Company - Schenectady NY

International Classification:

H01H 3500

US Classification:

307116

Abstract:

A capacitive touch panel comprising an array of touch sensitive switch cells, the panel including relatively small area touch switch elements located on closely spaced centers, that can be of transparent construction particularly suited for use with data processing equipment and electronic displays. Each switch cell includes a first and a second pair of series connected capacitors energized by a common signal source, the array of switch cells being arranged so that the first pair of capacitors are connected in first groups of switch cells, such as rows, to a corresponding first plurality of signal detectors, and the second pair of capacitors are connected in second groups of switch cells, such as columns, to a corresponding second plurality of signal detectors, the junctions of each pair of capacitors of a single switch cell being selectively coupled to ground by the body or other touch capacitive means for actuating a selected switch cell.