公开(公告)号：US5395226A

公开(公告)日：1995-03-07

申请号：US130444

申请日：1993-10-01

申请人： Kunito Sakai ,  Kazuharu Oshio ,  Hirozoh Kanegae

发明人： Kunito Sakai ,  Kazuharu Oshio ,  Hirozoh Kanegae

IPC分类号： B29C45/14 ,  B29C45/26 ,  H01L21/00 ,  H01L21/56 ,  B29C45/02

CPC分类号： B29C45/14336 ,  B29C45/14418 ,  B29C45/14655 ,  B29C45/2608 ,  H01L21/565 ,  H01L2224/48247 ,  Y10S264/50 ,  Y10S425/019 ,  Y10S425/047 ,  Y10S425/228

摘要： A molding machine includes a mold composed of lower and upper mold sections. A recess is defined in the lower mold section to receive a lead frame or other objects. The lead frame is sandwiched between the upper and lower mold sections. A mold cavity is defined in the lower mold section below the recess so as to receive a thermosetting resin or encapsulant. A gasket groove is defined adjacent to the mold cavity to receive a gasket. The gasket is subject to plastic deformation upon application of force. An oil chamber is communicated with the gasket groove and contains hydraulic oil. The hydraulic oil is pressurized to urge the gasket against the lead frame. As a result, the gasket is so deformed as to closely contact the surface of the lead frame and seal the mold cavity. The hydraulic oil is preferably mixed with thermoplastic resin in powder form.

摘要翻译： 成型机包括由下模和上模组成的模具。 在下模具部分中限定凹部以接收引线框架或其它物体。 引线框架夹在上下模具部分之间。 在凹部下方的下模具部分中限定模腔，以便容纳热固性树脂或密封剂。 垫圈槽限定在模腔附近以接收垫圈。 施加力时，垫片会发生塑性变形。 油室与垫圈槽连通并含有液压油。 液压油被加压以将垫片推向引线框架。 结果，垫圈被如此变形以紧密地接触引线框架的表面并密封模腔。 液压油优选与粉末状的热塑性树脂混合。

公开(公告)号：US5597523A

公开(公告)日：1997-01-28

申请号：US292269

申请日：1994-08-18

申请人： Kunito Sakai ,  Kazuharu Oshio ,  Hirozoh Kanegae

发明人： Kunito Sakai ,  Kazuharu Oshio ,  Hirozoh Kanegae

IPC分类号： B29C45/26 ,  B29C45/02 ,  B29C45/14

CPC分类号： H02K15/12 ,  B29C45/2608

摘要： A molding apparatus having an upper mold, a lower mold, and a cylindrical mold cavity defined between the upper mold and the lower mold and adapted to receive a molding material such as epoxy resin. An annular recess is defined in the lower mold adjacent to the mold cavity. A gasket is fit in the recess and made of lead. An oil passage is defined in the lower mold. Silicon oil as a pressure medium is fed to the recess through the oil passage so as to press the gasket against the upper mold. Then, the gasket is deformed to form a seal around a portion of the mold cavity where the upper and lower molds mate with one another. An annular spacer is placed in the bottom of the recess. An annular groove is defined below and along the bottom of the recess so as to allow the silicon oil to flow below and along the annular spacer, whereby sufficient pressure is exerted uniformly on the gasket to cause deformation of the gasket.

摘要翻译： 一种具有上模具，下模具和限定在上模具和下模具之间并适于容纳诸如环氧树脂的模制材料的圆柱形模腔的模制设备。 在下模中限定了与模腔相邻的环形凹部。 凹槽内装有垫圈，由铅制成。 油通道限定在下模具中。 作为压力介质的硅油通过油路供给到凹部，以将垫圈压靠在上模上。 然后，垫圈变形以在模具腔的一部分周围形成密封，其中上模和下模相互配合。 环形间隔件放置在凹槽的底部。 在凹槽的下方并沿着凹部的底部限定环形槽，以便允许硅油沿着环形间隔件流动并沿着环形间隔件流动，从而在垫圈上均匀地施加足够的压力以引起垫圈的变形。

公开(公告)号：US5798070A

公开(公告)日：1998-08-25

申请号：US609786

申请日：1996-03-04

申请人： Kunito Sakai ,  Kazuharu Oshio ,  Hirozoh Kanegae

发明人： Kunito Sakai ,  Kazuharu Oshio ,  Hirozoh Kanegae

IPC分类号： B29C45/14 ,  B29C45/26 ,  H01L21/00 ,  H01L21/56 ,  B29C33/24 ,  B29C70/70

CPC分类号： B29C45/14336 ,  B29C45/14418 ,  B29C45/14655 ,  B29C45/2608 ,  H01L21/565 ,  H01L2224/48247 ,  Y10S264/50 ,  Y10S425/019 ,  Y10S425/047 ,  Y10S425/228

摘要： A molding machine comprises a mold composed of lower and upper mold sections. A recess is defined in the lower mold section to receive a lead frame or other objects. The lead frame is sandwiched between the upper and lower mold sections. A mold cavity is defined in the lower mold section below the recess so as to receive a thermosetting resin or encapsulant. A gasket groove is defined adjacent to the mold cavity to receive a gasket. The gasket is subject to plastic deformation upon application of force. An oil chamber is communicated with the gasket groove and contains hydraulic oil. The hydraulic oil is pressurized to urge the gasket against the lead frame. As a result, the gasket is so deformed as to closely contact the surface of the lead frame and seal the mold cavity. The hydraulic oil is preferably mixed with thermoplastic resin in powder form.

摘要翻译： 成型机包括由下模和上模组成的模具。 在下模具部分中限定凹部以接收引线框架或其它物体。 引线框架夹在上下模具部分之间。 在凹部下方的下模具部分中限定模腔，以便容纳热固性树脂或密封剂。 垫圈槽限定在模腔附近以接收垫圈。 施加力时，垫片会发生塑性变形。 油室与垫圈槽连通并含有液压油。 液压油被加压以将垫片推向引线框架。 结果，垫圈被如此变形以紧密地接触引线框架的表面并密封模腔。 液压油优选与粉末状的热塑性树脂混合。