CN202816922U - 一种sot89-3l封装引线框架 - Google Patents

一种sot89-3l封装引线框架 Download PDF

Info

Publication number
CN202816922U
CN202816922U CN 201220382033 CN201220382033U CN202816922U CN 202816922 U CN202816922 U CN 202816922U CN 201220382033 CN201220382033 CN 201220382033 CN 201220382033 U CN201220382033 U CN 201220382033U CN 202816922 U CN202816922 U CN 202816922U
Authority
CN
China
Prior art keywords
sot89
dao
lead frame
back side
groove
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 - Lifetime
Application number
CN 201220382033
Other languages
English (en)
Inventor
侯友良
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.)
Wuxi Red Microelectronics Co ltd
Original Assignee
Wuxi Red Microelectronics Co 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 Wuxi Red Microelectronics Co ltd filed Critical Wuxi Red Microelectronics Co ltd
Priority to CN 201220382033 priority Critical patent/CN202816922U/zh
Application granted granted Critical
Publication of CN202816922U publication Critical patent/CN202816922U/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Lead Frames For Integrated Circuits (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)

Abstract

本实用新型提供了一种SOT89-3L封装引线框架,其增强塑封体的气密性,提高了性能稳定性和可靠性,延长了器件的使用寿命。其包括SOT89-3L框架,所述SOT89-3L框架包括一个基岛、两只管脚,其特征在于:所述基岛的背面设置有凹槽。

Description

一种SOT89-3L封装引线框架
技术领域
    本实用新型涉及封装的技术领域,具体为一种SOT89-3L封装引线框架。 
背景技术
标准的SOT89-3L封装型式的引线框架见图1,其为一个基岛1、两只管脚2构成,芯片安放到基岛1上,塑封后基岛1与塑封体结合气密性不强,在高温潮湿环境下,水汽会侵入塑封体内部芯片上,致使芯片表面焊线球氧化,引起脱落或是接触不良,电性能早期失效。 
发明内容
针对上述问题,本实用新型提供了一种SOT89-3L封装引线框架,其增强塑封体的气密性,提高了性能稳定性和可靠性,延长了器件的使用寿命。 
一种SOT89-3L封装引线框架,其技术方案是这样的:其包括SOT89-3L框架,所述SOT89-3L框架包括一个基岛、两只管脚,其特征在于:所述基岛的背面设置有凹槽。 
其进一步特征在于:八个所述凹槽分别排列于所述基岛的背面的两侧,所述凹槽靠近所述基岛的背面的边缘布置。 
采用本实用新型后,由于SOT89-3L框架的基岛的背面设置有凹槽,其使得塑封时增加了塑封体与基岛的接触面积,从而提高塑封体的密封性能,增强塑封体的气密性,提高了性能稳定性和可靠性,延长了器件的使用寿命;此外,设置的凹槽减少了铜材质,降低制造成本。 
附图说明
图1是现有的SOT89-3L封装引线框架的背面结构示意图; 
图2是本实用新型的背面结构示意图。
具体实施方式
见图2,其包括SOT89-3L框架, SOT89-3L框架包括一个基岛1、两只管脚2,基岛的背面设置有凹槽3,八个凹槽3分别排列于基岛1的背面的两侧,凹槽3靠近基岛1的背面的边缘布置。 

Claims (2)

1.一种SOT89-3L封装引线框架,其包括SOT89-3L框架,所述SOT89-3L框架包括一个基岛、两只管脚,其特征在于:所述基岛的背面设置有凹槽。
2.根据权利要求1所述的一种SOT89-3L封装引线框架,其特征在于:八个所述凹槽分别排列于所述基岛的背面的两侧,所述凹槽靠近所述基岛的背面的边缘布置。
CN 201220382033 2012-08-03 2012-08-03 一种sot89-3l封装引线框架 Expired - Lifetime CN202816922U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220382033 CN202816922U (zh) 2012-08-03 2012-08-03 一种sot89-3l封装引线框架

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220382033 CN202816922U (zh) 2012-08-03 2012-08-03 一种sot89-3l封装引线框架

Publications (1)

Publication Number Publication Date
CN202816922U true CN202816922U (zh) 2013-03-20

Family

ID=47875762

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220382033 Expired - Lifetime CN202816922U (zh) 2012-08-03 2012-08-03 一种sot89-3l封装引线框架

Country Status (1)

Country Link
CN (1) CN202816922U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102790037A (zh) * 2012-08-03 2012-11-21 无锡红光微电子有限公司 Sot89-3l封装引线框架

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102790037A (zh) * 2012-08-03 2012-11-21 无锡红光微电子有限公司 Sot89-3l封装引线框架

Similar Documents

Publication Publication Date Title
JP2009302564A5 (zh)
SG152986A1 (en) Integrated circuit package system with shield
JP2011066327A5 (zh)
JP2010171181A5 (zh)
CN202816922U (zh) 一种sot89-3l封装引线框架
CN202816921U (zh) 一种sot89-5l封装引线框架
CN203386761U (zh) 一种二极管
CN202816919U (zh) 一种sot223-3l封装引线框架
CN202816920U (zh) 一种to-252封装引线框架结构
CN202712172U (zh) 一种多芯片双基岛的sop封装结构
CN202651105U (zh) 贴片式桥式引线框架
CN201829490U (zh) 芯片区打孔集成电路引线框架
CN102184907A (zh) To3p防水密封引线框架
CN204216030U (zh) 一种封装三极管
CN102760717A (zh) Sot223-3l封装引线框架
JP2010040955A5 (zh)
CN204516746U (zh) 可插拔fpc的指纹传感器封装结构
CN102790036A (zh) Sot89-5l封装引线框架
CN102790037A (zh) Sot89-3l封装引线框架
CN202585399U (zh) 引线框架
CN102760716A (zh) To-252封装引线框架结构
EP2741321A3 (en) Semiconductor device and method of manufacturing the same
CN204375731U (zh) 一种cob基板及cob光源
WO2014160990A3 (en) Dual interface module and dual interface card having a dual interface module
CN201773831U (zh) 一种集成电路器件的金属封装外壳

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20130320

CX01 Expiry of patent term