MY119490A - Feed-in apparatus in a rotary trim and form - Google Patents

Feed-in apparatus in a rotary trim and form

Info

Publication number
MY119490A
MY119490A MYPI9502585A MY119490A MY 119490 A MY119490 A MY 119490A MY PI9502585 A MYPI9502585 A MY PI9502585A MY 119490 A MY119490 A MY 119490A
Authority
MY
Malaysia
Prior art keywords
contours
transporting
cylinder
circumferential
lead frame
Prior art date
Application number
Inventor
S Gasen
Nadarajah Puraviya Pillai
Original Assignee
Freescale Semiconductor Inc
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 Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Priority to MYPI9502585 priority Critical patent/MY119490A/en
Publication of MY119490A publication Critical patent/MY119490A/en

Links

Abstract

A ROTARY TRIM AND FORM COMPRISING A ROTATING CYLINDRICAL PUNCH (305) AND A ROTATING CYLINDRICAL DIE (320), HAVING COMPLIMENTARY CIRCUMFERENTIAL TRIMMING CONTOURS (615) AND (620), FORMING CONTOURS (605) AND (610), AND TRANSPORTING CONTOURS (365) AND (367), FOR TRIMMING AND FORMING LEADS (110) OF DEVICES (105) PACKAGED IN A LEAD FRAME (100). THE ROTARY TRIM AND FORM INCLUDING A ROTATING FEED-IN CYLINDER (380) HAVING CIRCUMFERENTIAL TRANSPORTING CONTOURS (365) AND A SPRING WIRE (370) DISPOSED TANGENTIALLY AGAINST THE ROTATING FEED-IN CYLINDER (380) WHICH EXERTS PRESSURE ON THE LEAD FRAME (100) TO SYNCHRONISE THE CIRCUMFERENTIAL TRANSPORT CONTOURS (365) ON THE ROTATING FEED-IN CYLINDER (280) WITH THE TRANSPORT FEATURES (115) OF THE LEAD FRAME (100), PRIOR TO THE TRANSPORTING CONTOURS (365) OF THE ROTATING FEED-IN CYLINDER (380) TRANSPORTING THE SYNCHRONISED LEAD FRAME (100) TO THE CIRCUMFERENTIAL TRANSPORTING CONTOURS (365) ON THE ROTATING CYLINDRICAL PUNCH (305). (FIG.3)
MYPI9502585 1995-08-30 1995-08-30 Feed-in apparatus in a rotary trim and form MY119490A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI9502585 MY119490A (en) 1995-08-30 1995-08-30 Feed-in apparatus in a rotary trim and form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI9502585 MY119490A (en) 1995-08-30 1995-08-30 Feed-in apparatus in a rotary trim and form

Publications (1)

Publication Number Publication Date
MY119490A true MY119490A (en) 2005-06-30

Family

ID=47227292

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9502585 MY119490A (en) 1995-08-30 1995-08-30 Feed-in apparatus in a rotary trim and form

Country Status (1)

Country Link
MY (1) MY119490A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801999A (en) * 1987-07-15 1989-01-31 Advanced Micro Devices, Inc. Integrated circuit lead frame assembly containing voltage bussing and distribution to an integrated circuit die using tape automated bonding with two metal layers
US5054188A (en) * 1990-02-20 1991-10-08 Micron Technology, Inc. Trim cut and form machine
US5432127A (en) * 1989-06-30 1995-07-11 Texas Instruments Incorporated Method for making a balanced capacitance lead frame for integrated circuits having a power bus and dummy leads

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801999A (en) * 1987-07-15 1989-01-31 Advanced Micro Devices, Inc. Integrated circuit lead frame assembly containing voltage bussing and distribution to an integrated circuit die using tape automated bonding with two metal layers
US5432127A (en) * 1989-06-30 1995-07-11 Texas Instruments Incorporated Method for making a balanced capacitance lead frame for integrated circuits having a power bus and dummy leads
US5054188A (en) * 1990-02-20 1991-10-08 Micron Technology, Inc. Trim cut and form machine

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