GB1390752A - Lead frames for holding and contacting semiconductor bodies - Google Patents

Lead frames for holding and contacting semiconductor bodies

Info

Publication number
GB1390752A
GB1390752A GB5125173A GB5125173A GB1390752A GB 1390752 A GB1390752 A GB 1390752A GB 5125173 A GB5125173 A GB 5125173A GB 5125173 A GB5125173 A GB 5125173A GB 1390752 A GB1390752 A GB 1390752A
Authority
GB
United Kingdom
Prior art keywords
layer
etching
leads
brass
attacks
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.)
Expired
Application number
GB5125173A
Other languages
English (en)
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.)
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Publication of GB1390752A publication Critical patent/GB1390752A/en
Expired 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
    • H10W72/30—Die-attach connectors
    • 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
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/01—Manufacture or treatment
    • H10W70/04—Manufacture or treatment of leadframes
    • H10W70/042—Etching
    • 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
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/421—Shapes or dispositions
    • H10W70/424—Cross-sectional shapes
    • 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
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/456—Materials
    • H10W70/457—Materials of metallic layers on leadframes
    • 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
    • H10W72/073—Connecting or disconnecting of die-attach connectors
    • 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
    • H10W72/073—Connecting or disconnecting of die-attach connectors
    • H10W72/07331—Connecting techniques
    • H10W72/07336—Soldering or alloying
    • 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
    • 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
    • H10W90/00—Package configurations
    • H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
    • H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
    • H10W90/756—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between a chip and a stacked lead frame, conducting package substrate or heat sink

Landscapes

  • Lead Frames For Integrated Circuits (AREA)
GB5125173A 1971-06-03 1972-05-25 Lead frames for holding and contacting semiconductor bodies Expired GB1390752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2127633A DE2127633B2 (de) 1971-06-03 1971-06-03 Verfahren zum Herstellen eines Systemträgers zur Halterung und Kontaktierung eines Halbleiterkörpers

Publications (1)

Publication Number Publication Date
GB1390752A true GB1390752A (en) 1975-04-16

Family

ID=5809753

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2466172A Expired GB1389346A (en) 1971-06-03 1972-05-25 Lead frames for holding and contacting semiconductor bodies
GB5125173A Expired GB1390752A (en) 1971-06-03 1972-05-25 Lead frames for holding and contacting semiconductor bodies

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2466172A Expired GB1389346A (en) 1971-06-03 1972-05-25 Lead frames for holding and contacting semiconductor bodies

Country Status (5)

Country Link
DE (1) DE2127633B2 (enExample)
FR (1) FR2140190B3 (enExample)
GB (2) GB1389346A (enExample)
IT (1) IT955889B (enExample)
NL (1) NL7207300A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658532C2 (de) * 1976-12-23 1984-02-16 Siemens AG, 1000 Berlin und 8000 München Zwischenträger zur Halterung und Kontaktierung eines Halbleiterkörpers und Verfahren zu dessen Herstellung
CN108257938B (zh) * 2018-01-31 2020-01-24 江苏长电科技股份有限公司 用于引线框架的治具及引线框架的蚀刻方法

Also Published As

Publication number Publication date
DE2127633C3 (enExample) 1975-11-20
FR2140190B3 (enExample) 1975-08-08
DE2127633A1 (de) 1972-12-07
IT955889B (it) 1973-09-29
NL7207300A (enExample) 1972-12-05
GB1389346A (en) 1975-04-03
DE2127633B2 (de) 1975-03-20
FR2140190A1 (enExample) 1973-01-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee