PRINTING OF LARGE AREA AND THICKNESS RESISTOR

PROBLEM TO BE SOLVED: To improve predictive accuracy and uniformity by enabling to obtain with security a resistor with no scooped part in the center by supporting the screen mesh through the use of a tent pole at printing of the resistor. SOLUTION: During printing process of a resistor, the screen...

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Bibliographische Detailangaben
Hauptverfasser:	CASEY JOHN F, DOVE LEWIS R, JOHNSON ROSEMARY O
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS RESISTORS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve predictive accuracy and uniformity by enabling to obtain with security a resistor with no scooped part in the center by supporting the screen mesh through the use of a tent pole at printing of the resistor. SOLUTION: During printing process of a resistor, the screen is supported by a kind of prop. Namely, a tent pole is used for lifting the center of the mesh. A simple tent pole which produces no ill effect on the resistor is used. Photosensitive emulsion 120 is applied, by printing to a substrate 110 in such a way that it forms a vacant part of a predetermined width, a tent pole is provided in the vacant part, the screen mesh is placed on the photosensitive emulsion 120 and the tent pole, and the printing is completed by using a squeegee 140. The tent pole is a metal pad, or the tent pole is a resistor spot or a photosensitive emulsion spot.