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公开(公告)号:US07057273B2
公开(公告)日:2006-06-06
申请号:US09895478
申请日:2001-06-29
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
发明人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
IPC分类号: H01L23/48
CPC分类号: H01L24/48 , H01L23/3107 , H01L23/49555 , H01L23/49562 , H01L23/49575 , H01L24/49 , H01L2224/05554 , H01L2224/05647 , H01L2224/0603 , H01L2224/32245 , H01L2224/48091 , H01L2224/48137 , H01L2224/48227 , H01L2224/48247 , H01L2224/48257 , H01L2224/48464 , H01L2224/49111 , H01L2224/49171 , H01L2224/73265 , H01L2224/85399 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01014 , H01L2924/01015 , H01L2924/01021 , H01L2924/01027 , H01L2924/01029 , H01L2924/01031 , H01L2924/01047 , H01L2924/01055 , H01L2924/01057 , H01L2924/01074 , H01L2924/01075 , H01L2924/014 , H01L2924/10161 , H01L2924/10253 , H01L2924/1305 , H01L2924/13091 , H01L2924/14 , H01L2924/1433 , H01L2924/181 , H01L2924/19043 , H05K3/3426 , Y02P70/613 , H01L2224/45099 , H01L2924/00 , H01L2924/00012
摘要: Space-efficient packaging of microelectronic devices permits greater functionality per unit PC board surface area. In certain embodiments, packages having leads of a reverse gull wing shape reduce peripheral footprint area occupied by the leads, thereby permitting maximum space in the package footprint to be allocated to the package body and to the enclosed die. Embodiments of packages in accordance with the present invention may also reduce the package vertical profile by featuring recesses for receiving lead feet ends, thereby reducing clearance between the package bottom and the PC board. Providing a linear lead foot underlying the package and slightly inclined relative to the PC board further reduces vertical package profile by eliminating additional clearance associated with radiuses of curvature of J-shaped leads.
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公开(公告)号:USD513608S1
公开(公告)日:2006-01-17
申请号:US29173644
申请日:2003-01-03
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing , Allen K. Lam
设计人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing , Allen K. Lam
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公开(公告)号:USD494939S1
公开(公告)日:2004-08-24
申请号:US29172799
申请日:2002-12-17
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
设计人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
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公开(公告)号:USD471165S1
公开(公告)日:2003-03-04
申请号:US29141963
申请日:2001-05-15
申请人: Richard K. Williams , James Harnden , Anthony Chia , Chu Weibing
设计人: Richard K. Williams , James Harnden , Anthony Chia , Chu Weibing
CPC分类号: H01L2924/181 , H01L2924/00012
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公开(公告)号:US07667309B2
公开(公告)日:2010-02-23
申请号:US12075814
申请日:2008-03-14
申请人: James Harnden , Allen K. Lam , Richard K. Williams , Anthony Chia , Chu Weibing
发明人: James Harnden , Allen K. Lam , Richard K. Williams , Anthony Chia , Chu Weibing
IPC分类号: H01L23/495 , H01L23/48
CPC分类号: H01L23/49562 , H01L23/49541 , H01L24/48 , H01L24/49 , H01L2224/05554 , H01L2224/0603 , H01L2224/32245 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/49111 , H01L2224/49171 , H01L2224/49431 , H01L2224/73265 , H01L2924/00014 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01029 , H01L2924/01039 , H01L2924/01047 , H01L2924/01074 , H01L2924/014 , H01L2924/1306 , H01L2924/13062 , H01L2924/13091 , H01L2924/14 , H01L2924/181 , H01L2924/3011 , H01L2924/00 , H01L2224/45099 , H01L2224/05599 , H01L2924/00012
摘要: Efficient utilization of space in a laterally-conducting semiconductor device package is enhanced by creating at least one supplemental downbond pad portion of the diepad for receiving the downbond wire from the ground contact of the device. The supplemental diepad portion may occupy area at the end or side of the package formerly occupied by non-integral leads. By receiving the substrate downbond wire, the supplemental diepad portion allows a greater area of the main diepad to be occupied by a die having a larger area, thereby enhancing space efficiency of the package.
摘要翻译: 通过产生用于从设备的接地触点接收下焊线的至少一个补充的下焊垫部分来增强横向导电的半导体器件封装中的空间的有效利用。 补充的底部部分可以占据以前由非整体引线占据的包装的端部或侧面的区域。 通过接收衬底下焊接线,补充的双面部分允许主凹版的更大面积被具有较大面积的模具占据,从而提高了封装的空间效率。
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公开(公告)号:USD487431S1
公开(公告)日:2004-03-09
申请号:US29173645
申请日:2003-01-03
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing , Allen K. Lam
设计人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing , Allen K. Lam
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公开(公告)号:USD483337S1
公开(公告)日:2003-12-09
申请号:US29171685
申请日:2002-11-25
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
设计人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
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公开(公告)号:USD505121S1
公开(公告)日:2005-05-17
申请号:US29173648
申请日:2003-01-03
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing , Allen K. Lam
设计人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing , Allen K. Lam
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公开(公告)号:USD492266S1
公开(公告)日:2004-06-29
申请号:US29171085
申请日:2002-11-15
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
设计人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
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公开(公告)号:USD484859S1
公开(公告)日:2004-01-06
申请号:US29175608
申请日:2003-02-07
申请人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
设计人: James Harnden , Richard K. Williams , Anthony Chia , Chu Weibing
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