Duplex-attachment of ceramic disk PTC to substrates

Details Duplex-attachment of ceramic disk PTC to substrates Duplex-attachment of ceramic disk PTC to substrates

2007-10-18

2010-12-07

Lee, Kyung (Department: 2833)

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

C338S315000, C338S329000

Reexamination Certificate

active

07847673

ABSTRACT:
This is a ceramic disk PTC and heater assembly, and a method for attaching one to the other, the combination useful in the heating elements of solid ink printing apparatus. The ceramic disk PTC attachment method is made up of a low melting temperature solder and a high operating temperature adhesive. The solder attaches the disk to a substrate, and provides a low resistance electrical and thermal bond to the substrate. The adhesive is used to substantially completely encircle the solder, containing the solder when melted, and keeping the PTC attached when the solder is melted. The adhesive can also partially encircle the solder to a degree sufficient to substantially prevent substantial escape of molten solder from the attachment area.

REFERENCES:
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patent: 7271369 (2007-09-01), Li et al.
patent: 2005/0030689 (2005-02-01), Toth et al.
EPCOS. (Mar. 2006). EPCOS—PTC Thermistor Application Notes, Mar. 2006. Vertrieb Deutschland. EPCOS AG.
EPCOS. (Mar. 2006). EPCOS—PTC Thermistor General Technical Information, Mar. 2006. Vertrieb Deutschland. EPCOS AG.
EPCOS. (Mar. 2006). EPCOS—PTC Thermistor Mounting Instructions, Mar. 2006. Vertrieb Deutschland. EPCOS AG.
GE Sensing (2007) http://www.gesensing.com/thermometricsproducts/ptc.htm.
Stetron International (2007) http://www.stetron.com/other-products/thermistors-assemblies/ptc-thermistors/.
Sunlead/Victon Technology Electronic Co., Ltd. (2007) http://www.sunlead.com.tw/protuct.htm.

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