JPS575342A - Pattern center position recognition system - Google Patents

Pattern center position recognition system

Info

Publication number
JPS575342A
JPS575342A JP7922980A JP7922980A JPS575342A JP S575342 A JPS575342 A JP S575342A JP 7922980 A JP7922980 A JP 7922980A JP 7922980 A JP7922980 A JP 7922980A JP S575342 A JPS575342 A JP S575342A
Authority
JP
Japan
Prior art keywords
width
coordinates
camera
longest line
obtaining
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
JP7922980A
Other languages
Japanese (ja)
Inventor
Tetsuo Hizuka
Masahito Nakajima
Yushi Inagaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7922980A priority Critical patent/JPS575342A/en
Publication of JPS575342A publication Critical patent/JPS575342A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/0711—Apparatus therefor
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/075—Connecting or disconnecting of bond wires
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/075—Connecting or disconnecting of bond wires
    • H10W72/07531—Techniques
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/50—Bond wires
    • H10W72/541—Dispositions of bond wires
    • H10W72/5449—Dispositions of bond wires not being orthogonal to a side surface of the chip, e.g. fan-out arrangements

Landscapes

  • Image Processing (AREA)
  • Wire Bonding (AREA)
  • Image Analysis (AREA)

Abstract

PURPOSE:To accurately recognize the central position of an observing pattern by obtaining the width of the longest line of an observing pattern signal in X-axis and Y-axis directions and obtaining the coordinates of the central point of the width of the longest line. CONSTITUTION:A lead frame 2 is scanned by an ITV camera 19, a video signal from the camera is fed to a binary encoder 7, horizontal and vertical synchronizing signals from the camera are applied to an image sample controller 18, which in turn produces a sampling clock. After the video signal is converted to binary signal, the maximum value of the width of the pad and the coordinates data are obtained by the longest line segment detector 17, are in turn applied to a position calculating stage moving unit 20, which thus calculates the coordinates of the neutral point. When two pads of IC chip are calculated, the displacement of the IC can be accurately detected, a moving unit 21 is moved, and wire can be thus accurately bonded by a wire bonder 22.
JP7922980A 1980-06-11 1980-06-11 Pattern center position recognition system Pending JPS575342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7922980A JPS575342A (en) 1980-06-11 1980-06-11 Pattern center position recognition system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7922980A JPS575342A (en) 1980-06-11 1980-06-11 Pattern center position recognition system

Publications (1)

Publication Number Publication Date
JPS575342A true JPS575342A (en) 1982-01-12

Family

ID=13684059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7922980A Pending JPS575342A (en) 1980-06-11 1980-06-11 Pattern center position recognition system

Country Status (1)

Country Link
JP (1) JPS575342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0325237U (en) * 1989-07-24 1991-03-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0325237U (en) * 1989-07-24 1991-03-15

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