JPS641201A - Organic positive temperature coefficient thermistor - Google Patents

Organic positive temperature coefficient thermistor

Info

Publication number
JPS641201A
JPS641201A JP15675987A JP15675987A JPS641201A JP S641201 A JPS641201 A JP S641201A JP 15675987 A JP15675987 A JP 15675987A JP 15675987 A JP15675987 A JP 15675987A JP S641201 A JPS641201 A JP S641201A
Authority
JP
Japan
Prior art keywords
temperature coefficient
positive temperature
foil
coefficient thermistor
organic positive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15675987A
Other languages
Japanese (ja)
Other versions
JPH011201A (en
Inventor
Katsuyuki Uchida
Asayuki Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP62-156759A priority Critical patent/JPH011201A/en
Priority claimed from JP62-156759A external-priority patent/JPH011201A/en
Publication of JPS641201A publication Critical patent/JPS641201A/en
Publication of JPH011201A publication Critical patent/JPH011201A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points specially adapted for resistors; Arrangements of terminals or tapping points on resistors
    • H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermistors And Varistors (AREA)

Abstract

PURPOSE:To obtain a high bonding strength and to reduce a resistance value change even after a long time use by forming a metal foil as an Ni foil having a specific surface roughness on its surface in contact with an organic positive temperature coefficient thermistor element. CONSTITUTION:In an organic positive temperature coefficient thermistor in which a metal foil is thermally press-bonded to the surface of an organic positive temperature coefficient thermistor element and used as an electrode, the foil is formed as an Ni foil having 1.0-2.0mum of surface roughness on its surface in contact with the element. When the surface roughness of the metal foil used as an electrode was varied to test the relationship of bonding strengths between the electrode, i.e., the thermistor and the metal foil, the degree of the roughness is not sufficient with the surface roughness Ra=1.0mum or less, and the bonding strength is low. If it is Ra=2.0mum or larger, particles of the roughened surface are exfoliated from the coil, and the bonding strength is extremely reduced. Particularly, as a result that electrodes are formed on a positive temperature coefficient thermistor element and executed for a conduction test, the electrodes of the Ni foil exhibited minus resistance value change to be stable.
JP62-156759A 1987-06-24 organic positive temperature coefficient thermistor Pending JPH011201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-156759A JPH011201A (en) 1987-06-24 organic positive temperature coefficient thermistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-156759A JPH011201A (en) 1987-06-24 organic positive temperature coefficient thermistor

Publications (2)

Publication Number Publication Date
JPS641201A true JPS641201A (en) 1989-01-05
JPH011201A JPH011201A (en) 1989-01-05

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995034081A1 (en) * 1994-06-08 1995-12-14 Raychem Corporation Electrical devices containing conductive polymers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995034081A1 (en) * 1994-06-08 1995-12-14 Raychem Corporation Electrical devices containing conductive polymers
EP0952590A3 (en) * 1994-06-08 2000-01-05 Raychem Corporation Electrical devices containing conductive polymers
CN1078381C (en) * 1994-06-08 2002-01-23 雷伊化学公司 Electrical devices containing conductive polymers

Similar Documents

Publication Publication Date Title
HK66284A (en) Magnetron sputtering of ferromagnetic material
ATE170325T1 (en) PTC CONDUCTOR AND DEVICE FOR CURRENT LIMITATION WITH AT LEAST ONE PTC CONDUCTOR
ES8200786A1 (en) Composite thermistor component and applications.
DE69227176D1 (en) CONDUCTIVITY MEASURING CELL
GB1520502A (en) Thermistors having a positive temperature co-efficient of resistance
JPS641201A (en) Organic positive temperature coefficient thermistor
CA2137603A1 (en) A boron-doped diamond resistance heater
EP0867895A3 (en) Current limiter and/or circuit breaker with PTC element
TW371766B (en) Exothermic body and method of making same
Chen Annealing and Temperature Dependence of Magnetostriction in Nearly Zero-Magnetostrictive Metallic Glasses
ATE20816T1 (en) ELECTRIC HEATING DEVICE.
JPS5636028A (en) Insb infrared-ray detecting element
JPS57132033A (en) Pressure sensor
JPS54113376A (en) Sound wave sensor
JPS6422001A (en) Manufacture of barium titanate positive temperature coefficient thermistor
JPS56128565A (en) Fluorescent lamp device
JPH0465405U (en)
JPS5487085A (en) Rectangular thickness slip crystal oscillator
Bychkov et al. Thermal and Electric Conductivity of Niobium--Titanium Alloys at Low Temperatures
Amelin Surface Inhomogeneity of Clean Metal Electrodes
JPS54159750A (en) Silundum plate type heat generating body
JPS6450921A (en) Temperature sensor
JPS532077A (en) Semiconductor device
JPS6417335A (en) Sealed contact device
Blashchuk et al. The properties of the AT 6 titanium alloy and its weld joints