JPS63245945A - Ceramic substrate for semiconductor package - Google Patents

Ceramic substrate for semiconductor package

Info

Publication number
JPS63245945A
JPS63245945A JP545988A JP545988A JPS63245945A JP S63245945 A JPS63245945 A JP S63245945A JP 545988 A JP545988 A JP 545988A JP 545988 A JP545988 A JP 545988A JP S63245945 A JPS63245945 A JP S63245945A
Authority
JP
Japan
Prior art keywords
curvature
radius
substrate
circular
recess
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
JP545988A
Other languages
Japanese (ja)
Other versions
JPH0533826B2 (en
Inventor
Katsumi Nakamura
Tadahisa Yamamoto
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.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 Kyocera Corp filed Critical Kyocera Corp
Priority to JP63005459A priority Critical patent/JPH0533826B2/ja
Publication of JPS63245945A publication Critical patent/JPS63245945A/en
Publication of JPH0533826B2 publication Critical patent/JPH0533826B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To prevent substrates from cutting out due to the collision of the ceramic substrates in case of moving and to improve the reliability by forming circular arclike protrusions at the ends of the substrate, forming a circular arclike recess at the center of its short side, aud specifying the radius of curvature of the circular arcs.
CONSTITUTION: Circular arclike protrusions 2a, 2b of radius RS of curvature are formed at the ends of the short sides of a substrate and a circular arclike recess 3 of radius RB of curvature is formed substantially at the center. Then, the corner Ra of the radius RC of curvature for connecting the end of the protrusion 2a to the long side 5a of the substrate, and a curvature connecting section 6a of the radius Rt of curvature for connecting the protrusion 2a to the recess 3 are provided. The uppermost protrusions 7a, 7b disposed at the sections 6a, 6b are formed 1/2 of the width W of the substrate therebetween. Further, the radii are so formed that RS is 20W110mm, RB is 60W350mm, RC is 0.1mm or larger, and Rt is 7W20mm. Thus, this process prevents the substrates from cutting out due to the collision to improve the reliability of the semiconductor.
COPYRIGHT: (C)1988,JPO&Japio
JP63005459A 1988-01-13 1988-01-13 Expired - Fee Related JPH0533826B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63005459A JPH0533826B2 (en) 1988-01-13 1988-01-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63005459A JPH0533826B2 (en) 1988-01-13 1988-01-13

Publications (2)

Publication Number Publication Date
JPS63245945A true JPS63245945A (en) 1988-10-13
JPH0533826B2 JPH0533826B2 (en) 1993-05-20

Family

ID=11611808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63005459A Expired - Fee Related JPH0533826B2 (en) 1988-01-13 1988-01-13

Country Status (1)

Country Link
JP (1) JPH0533826B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007123786A (en) * 2005-10-31 2007-05-17 Kyocera Kinseki Corp Sheet substrate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750062A (en) * 1980-09-09 1982-03-24 Toshiba Corp Magnetic disk controller
JPS59119748A (en) * 1982-12-25 1984-07-11 Kyocera Corp Ceramic substrate for semiconductor package

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750062A (en) * 1980-09-09 1982-03-24 Toshiba Corp Magnetic disk controller
JPS59119748A (en) * 1982-12-25 1984-07-11 Kyocera Corp Ceramic substrate for semiconductor package

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007123786A (en) * 2005-10-31 2007-05-17 Kyocera Kinseki Corp Sheet substrate

Also Published As

Publication number Publication date
JPH0533826B2 (en) 1993-05-20

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees