JPS5735349A - Electronic parts - Google Patents

Electronic parts

Info

Publication number
JPS5735349A
JPS5735349A JP11019680A JP11019680A JPS5735349A JP S5735349 A JPS5735349 A JP S5735349A JP 11019680 A JP11019680 A JP 11019680A JP 11019680 A JP11019680 A JP 11019680A JP S5735349 A JPS5735349 A JP S5735349A
Authority
JP
Japan
Prior art keywords
discontinuity
parts
grade
indication
mark
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
JP11019680A
Other languages
Japanese (ja)
Inventor
Setsuo Kuwatani
Hajime Terakado
Heiji Moroshima
Masaru Mochizuki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11019680A priority Critical patent/JPS5735349A/en
Publication of JPS5735349A publication Critical patent/JPS5735349A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/544—Marks applied to semiconductor devices or parts, e.g. registration marks, alignment structures, wafer maps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2223/00—Details relating to semiconductor or other solid state devices covered by the group H01L23/00
    • H01L2223/544—Marks applied to semiconductor devices or parts
    • H01L2223/54473—Marks applied to semiconductor devices or parts for use after dicing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2223/00—Details relating to semiconductor or other solid state devices covered by the group H01L23/00
    • H01L2223/544—Marks applied to semiconductor devices or parts
    • H01L2223/54473—Marks applied to semiconductor devices or parts for use after dicing
    • H01L2223/54486—Located on package parts, e.g. encapsulation, leads, package substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Details Of Resistors (AREA)

Abstract

PURPOSE:To facilitate indication of the properties of small parts, by a method wherein a polarity identification mark which has a discontinuity and indicates polarity and grade of the parts is provided along the circumference of the sealing portion and sub-mark which indicates the grade of the parts by numbers, etc. is provided on the discontinuity. CONSTITUTION:A polarity identification mark (cathode line) 3 with a discontinuity region 6 is provided along the circumference of the sealed portion of a DHD element which consists of lead wires 2 and the sealed portion 1. A grade indication sub mark 7 which consists of numbers or letters is provided on the discontinuity region 6. With above method, as the marks 3 and 7 can be coded by various colors, many grades of the products can be identified by the combination of colors and the types of letters. Thus, indication of the properties of smaller electronic parts is facilitated.
JP11019680A 1980-08-13 1980-08-13 Electronic parts Pending JPS5735349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11019680A JPS5735349A (en) 1980-08-13 1980-08-13 Electronic parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11019680A JPS5735349A (en) 1980-08-13 1980-08-13 Electronic parts

Publications (1)

Publication Number Publication Date
JPS5735349A true JPS5735349A (en) 1982-02-25

Family

ID=14529476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11019680A Pending JPS5735349A (en) 1980-08-13 1980-08-13 Electronic parts

Country Status (1)

Country Link
JP (1) JPS5735349A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137397U (en) * 1984-08-10 1986-03-08 河内アルミニウム工業株式会社 gate opening/closing device
JPS624134U (en) * 1985-06-21 1987-01-12
JPS62193721U (en) * 1986-05-30 1987-12-09
JPH06317067A (en) * 1992-07-16 1994-11-15 Kohan Kenzai Kk Interlocking slide door device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5559743A (en) * 1978-10-27 1980-05-06 Hitachi Ltd Electronic parts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5559743A (en) * 1978-10-27 1980-05-06 Hitachi Ltd Electronic parts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137397U (en) * 1984-08-10 1986-03-08 河内アルミニウム工業株式会社 gate opening/closing device
JPS624134U (en) * 1985-06-21 1987-01-12
JPS62193721U (en) * 1986-05-30 1987-12-09
JPH06317067A (en) * 1992-07-16 1994-11-15 Kohan Kenzai Kk Interlocking slide door device

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