Title:
INFRARED SENSOR
Document Type and Number:
Japanese Patent JP3191540
Kind Code:
B2
Abstract:
PURPOSE: To prevent characteristic degradation by providing a circuit part, an infrared detection element connected to the circuit part, an insulative protection part covering the circuit part and a conductive protection part placed over the insulative protection part.
CONSTITUTION: An infrared detection element 9 is contained in a recess 20 provided in an insulative protection part 14 molded in one the circuit part excluding the infrared detection element 9 and a conductive protection part 17 covering at least a part of the insulative protection part 14. With this constitution, the circuit part is electrically and mechanically connected on the external guide lead and therefore, a circuit board is not necessary and it becomes possible to continuously conduct loading of parts and assembling on the hoop of a lead frame. Furthermore, by molding a high resistance circuit completely with insulative resin, especially epoxy resin, the breakdown of the high resistance circuit due to steam effect is prevented. Also, by grounding the exterior of the insulative protection part 14 to the case of the conductive protection part 17, noise generation due to external electromagnetic waves can be suppressed.
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Inventors:
Tomohiro Tsuruta
Hiromi Tokunaga
Koji Nishimura
Hiromi Tokunaga
Koji Nishimura
Application Number:
JP32903893A
Publication Date:
July 23, 2001
Filing Date:
December 24, 1993
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G01J1/02; G01J5/02; G01J5/04; G01J5/12; G01J5/34; (IPC1-7): G01J1/02; G01J5/02; G01J5/04
Domestic Patent References:
| JP5118917A | ||||
| JP4196196A | ||||
| JP2125699A | ||||
| JP63118524U |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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