FR2366773A1 - Encapsulation of electronic components with thermoplastic coatings - using low viscosity wax to seal a resin base coating of high viscosity - Google Patents

Encapsulation of electronic components with thermoplastic coatings - using low viscosity wax to seal a resin base coating of high viscosity

Info

Publication number
FR2366773A1
FR2366773A1 FR7629633A FR7629633A FR2366773A1 FR 2366773 A1 FR2366773 A1 FR 2366773A1 FR 7629633 A FR7629633 A FR 7629633A FR 7629633 A FR7629633 A FR 7629633A FR 2366773 A1 FR2366773 A1 FR 2366773A1
Authority
FR
France
Prior art keywords
electronic components
encapsulation
seal
resin base
base coating
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.)
Granted
Application number
FR7629633A
Other languages
French (fr)
Other versions
FR2366773B1 (en
Inventor
Paul Pierfon
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.)
Eurofarad EFD SAS
Original Assignee
Eurofarad EFD SAS
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 Eurofarad EFD SAS filed Critical Eurofarad EFD SAS
Priority to FR7629633A priority Critical patent/FR2366773A1/en
Publication of FR2366773A1 publication Critical patent/FR2366773A1/en
Application granted granted Critical
Publication of FR2366773B1 publication Critical patent/FR2366773B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/12—Protection against corrosion

Abstract

Electronic components, esp. capacitors are encapsulated by a combination of a coating of rigid thermoplastic material (I) applied in a molten state and an overlay of a sealant (II) applied as a relatively fluid melt, e.g. a molten wax, esp. at coating interfaces with e.g. protruding terminals. (I) is pref. cellulosic, polyamides, polydiene, polyepoxide, polyester or polyvinyl resin. The coating materials are less expensive than conventional thermosetting potting resins and are relatively neutral chemically, i.s. do not involve acidic or alkaline intermediates which may corrode metallic components.
FR7629633A 1976-10-01 1976-10-01 Encapsulation of electronic components with thermoplastic coatings - using low viscosity wax to seal a resin base coating of high viscosity Granted FR2366773A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7629633A FR2366773A1 (en) 1976-10-01 1976-10-01 Encapsulation of electronic components with thermoplastic coatings - using low viscosity wax to seal a resin base coating of high viscosity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7629633A FR2366773A1 (en) 1976-10-01 1976-10-01 Encapsulation of electronic components with thermoplastic coatings - using low viscosity wax to seal a resin base coating of high viscosity

Publications (2)

Publication Number Publication Date
FR2366773A1 true FR2366773A1 (en) 1978-04-28
FR2366773B1 FR2366773B1 (en) 1982-05-21

Family

ID=9178305

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7629633A Granted FR2366773A1 (en) 1976-10-01 1976-10-01 Encapsulation of electronic components with thermoplastic coatings - using low viscosity wax to seal a resin base coating of high viscosity

Country Status (1)

Country Link
FR (1) FR2366773A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0109516A2 (en) * 1982-10-27 1984-05-30 Siemens Aktiengesellschaft Electrical wound capacitor, process for making it and apparatus therefor
FR2850486A1 (en) * 2003-01-29 2004-07-30 Siemens Ag Electronic component covering procedure has plastic coating applied by dipping before encapsulation
EP3776613A4 (en) * 2018-03-30 2022-04-20 KYOCERA AVX Components Corporation Supercapacitor assembly having a barrier layer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR782584A (en) * 1934-01-25 1935-06-07 Bosch Robert Capacitor surrounded by an insulating mass which is solid at normal temperature and soft when hot
FR1266708A (en) * 1960-07-08 1961-07-17 Philips Nv Capacitor for high operating voltages
FR1325089A (en) * 1961-04-27 1963-04-26 Raytheon Co Semiconductor surface treatment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR782584A (en) * 1934-01-25 1935-06-07 Bosch Robert Capacitor surrounded by an insulating mass which is solid at normal temperature and soft when hot
FR1266708A (en) * 1960-07-08 1961-07-17 Philips Nv Capacitor for high operating voltages
FR1325089A (en) * 1961-04-27 1963-04-26 Raytheon Co Semiconductor surface treatment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0109516A2 (en) * 1982-10-27 1984-05-30 Siemens Aktiengesellschaft Electrical wound capacitor, process for making it and apparatus therefor
EP0109516A3 (en) * 1982-10-27 1985-09-11 Siemens Aktiengesellschaft Electrical wound capacitor, process for making it and apparatus therefor
FR2850486A1 (en) * 2003-01-29 2004-07-30 Siemens Ag Electronic component covering procedure has plastic coating applied by dipping before encapsulation
EP3776613A4 (en) * 2018-03-30 2022-04-20 KYOCERA AVX Components Corporation Supercapacitor assembly having a barrier layer

Also Published As

Publication number Publication date
FR2366773B1 (en) 1982-05-21

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Legal Events

Date Code Title Description
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