公开(公告)号：US07062987B2

公开(公告)日：2006-06-20

申请号：US10299345

申请日：2002-11-19

Applicant: Isamu Yoshida ,  Keisuke Kazuno

Inventor： Isamu Yoshida ,  Keisuke Kazuno

IPC: F16H1/18

CPC classification number: F16C33/3706 ,  F16C33/3713 ,  F16C33/6696 ,  F16H25/2238 ,  F16H63/067 ,  Y10T74/19777

Abstract: A ball screw in a continuously variable speed transmission has an axially immovable pulley half (2) and axially movable pulley half (3) both mounted on a rotary shaft (4). The axially movable pulley half (3) is moved by a ball screw (20) so as to infinitely vary the belt wrapping radius and thus the transmission speed. A nut (22), forming one part of the ball screw (20), is immovably secured in both axial and rotational directions. A screw shaft (21), forming the other part of the ball screw (20), is movable in both axial and rotational directions. The screw shaft 21 is connected to the axially movable pulley half (3). The axially movable pulley half (3) is axially moved by rotating the screw shaft (21).

Abstract translation: 无级变速传动装置中的滚珠丝杠具有安装在旋转轴（4）上的轴向不可移动的滑轮半部（2）和可轴向移动的滑轮半部（3）。 轴向移动的滑轮半部（3）通过滚珠丝杠（20）移动，以便无级地改变皮带包裹半径，从而使传送速度变化。 形成滚珠丝杠（20）的一部分的螺母（22）在轴向和旋转方向上都是不可移动的。 形成滚珠丝杠（20）的另一部分的螺杆轴（21）可沿轴向和旋转方向移动。 螺杆轴21连接到可轴向移动的滑轮半部（3）。 轴向移动的滑轮半部（3）通过旋转螺杆轴（21）而轴向移动。

公开(公告)号：US06991062B2

公开(公告)日：2006-01-31

申请号：US10065076

申请日：2002-09-13

Applicant: Isamu Yoshida ,  Keisuke Kazuno ,  Morihisa Yoshioka

Inventor： Isamu Yoshida ,  Keisuke Kazuno ,  Morihisa Yoshioka

IPC: B62D5/04

CPC classification number: B62D5/0448 ,  F16H25/24 ,  F16H2025/2445

Abstract: A ball screw mechanism comprises a screw shaft, a nut and balls. The nut has a cylindrical portion in the axial middle on the outer peripheral surface thereof that becomes a fitting surface for fitting in a sleeve, and small diameter step portions in the opposite axial sides on the outer peripheral surface thereof that become non-fitting surfaces not fitting in the sleeve. A portion of a wheel steering shaft is provided with the screw shaft, and a plurality of balls are disposed in a rolling way defined between a thread groove formed in the outer periphery of the screw shaft and a thread groove formed in the inner periphery of the nut.

Abstract translation: 滚珠丝杠机构包括螺杆轴，螺母和滚珠。 螺母在其外周面的轴向中央具有圆筒部，成为配合于套筒的嵌合面，在其外周面的与其外周面相反的轴向侧的小直径台阶部不成为不配合的面 装在袖子里。 轮转向轴的一部分设置有螺杆轴，并且多个滚珠以滚动方式设置，该滚珠形成在螺纹轴的外周中形成的螺纹槽和形成在螺纹轴的内周中的螺纹槽之间 坚果。

公开(公告)号：US06662921B2

公开(公告)日：2003-12-16

申请号：US10187366

申请日：2002-07-02

Applicant: Isamu Yoshida ,  Keisuke Kazuno ,  Koji Sato

Inventor： Isamu Yoshida ,  Keisuke Kazuno ,  Koji Sato

IPC: B62D300

CPC classification number: F16D41/067 ,  F16H25/20 ,  F16H25/2204 ,  Y10T74/18576 ,  Y10T74/18696

Abstract: To provide a wheel steering apparatus capable of exhibiting a stabilized vehicle steerability without transmitting an external disturbance torque to a motor rotor even when the wheel receives an axially acting external force, this wheel steering apparatus includes a reciprocatingly movable rod 3 drivingly connected with a support member 2 for steerably supporting a wheel 1, and a ball screw mechanism 5 for reciprocatingly moving the rod 3 in response to rotation of a drive motor 4. In a rotational transmission system for transmitting rotation of the drive motor 4 to a nut member 5b of the ball screw mechanism 5, a clutch assembly 6 defining a reverse input limiting means is provided for preventing a rotar of the drive motor 4 from being rotated by the external force acting on the wheel 1. This clutch assembly 6 used is of a design wherein although rotation can be transmitted from an input shaft to an output shaft, no rotation is transmitted from the output shaft to the input shaft.

Abstract translation: 为了提供即使在车轮受到轴向作用的外力的情况下也能够显示稳定的车辆操纵性而不向外部扰动转矩传递的车轮转向装置，该车轮转向装置包括与支撑部件驱动连接的往复运动杆3 2，用于可转动地支撑车轮1;以及滚珠丝杠机构5，用于响应于驱动马达4的旋转使杆3往复运动。在用于将驱动马达4的旋转传递到螺母构件5b的旋转传动系统中 滚珠丝杠机构5，限定反向输入限制装置的离合器组件6被设置成用于防止驱动马达4的转子由于作用在车轮1上的外力而旋转。所使用的离合器组件6具有如下设计： 旋转可以从输入轴传递到输出轴，不会从输出轴向输入轴转动。

公开(公告)号：US20080061431A1

公开(公告)日：2008-03-13

申请号：US11834724

申请日：2007-08-07

Applicant: Shinichi Fujiwara ,  Masahide Harada ,  Hideto Yoshinari ,  Shosaku Ishihara ,  Shiro Yamashita ,  Isamu Yoshida ,  Ukyo Ikeda

Inventor： Shinichi Fujiwara ,  Masahide Harada ,  Hideto Yoshinari ,  Shosaku Ishihara ,  Shiro Yamashita ,  Isamu Yoshida ,  Ukyo Ikeda

IPC: H01L23/34

CPC classification number: H01L23/3735 ,  H01L24/32 ,  H01L24/33 ,  H01L24/37 ,  H01L24/40 ,  H01L24/83 ,  H01L24/84 ,  H01L24/92 ,  H01L2224/26165 ,  H01L2224/26175 ,  H01L2224/291 ,  H01L2224/29111 ,  H01L2224/33181 ,  H01L2224/371 ,  H01L2224/37147 ,  H01L2224/3754 ,  H01L2224/40095 ,  H01L2224/40225 ,  H01L2224/40499 ,  H01L2224/73263 ,  H01L2224/83136 ,  H01L2224/83139 ,  H01L2224/8314 ,  H01L2224/83385 ,  H01L2224/83801 ,  H01L2224/83815 ,  H01L2224/84801 ,  H01L2224/84815 ,  H01L2224/9221 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01042 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/0132 ,  H01L2924/0133 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/15747 ,  H01L2924/15787 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012 ,  H01L2924/014 ,  H01L2224/83 ,  H01L2224/84

Abstract: A semiconductor module of the present invention comprises a first conductive layer (film) and a second conductive layer (film) which are separately formed on the main surface of a packed substrate, a thermal diffusion plate connected by solder to the upper surface of the first conductive layer, a semiconductor element connected by solder to the upper surface of the thermal diffusion plate, and a lead having one end connected by solder to the second conductive layer and the other end connected by solder to the semiconductor element, wherein the outer periphery of the connected region where the semiconductor element is connected by solder to the upper surface of the thermal diffusion plate is formed with protrusion parts protruding up from the connecting region and a turning of the semiconductor element in the upper surface of the thermal diffusion plate in the solder connecting process is suppressed by the protrusion parts.

Abstract translation: 本发明的半导体模块包括在填充基板的主表面上分别形成的第一导电层（膜）和第二导电层（膜），通过焊料与第一导电层（膜）的上表面连接的热扩散板 导电层，通过焊料连接到热扩散板的上表面的半导体元件，以及引线，其一端通过焊料连接到第二导电层，另一端通过焊料连接到半导体元件，其中外周边 半导体元件通过焊料连接到热扩散板的上表面的连接区域形成有从连接区域突出的突出部分和在焊料中的热扩散板的上表面中的半导体元件的转动 连接过程被突出部分抑制。

公开(公告)号：US06861294B2

公开(公告)日：2005-03-01

申请号：US10673459

申请日：2003-09-30

Applicant: Shigeharu Tsunoda ,  Junichi Saeki ,  Isamu Yoshida ,  Kazuya Ooji ,  Michiharu Honda ,  Makoto Kitano ,  Nae Yoneda ,  Shuji Eguchi ,  Kunihiko Nishi ,  Ichiro Anjoh ,  Kenichi Otsuka

Inventor： Shigeharu Tsunoda ,  Junichi Saeki ,  Isamu Yoshida ,  Kazuya Ooji ,  Michiharu Honda ,  Makoto Kitano ,  Nae Yoneda ,  Shuji Eguchi ,  Kunihiko Nishi ,  Ichiro Anjoh ,  Kenichi Otsuka

IPC: H01L21/56 ,  H01L23/31 ,  H01L21/44

CPC classification number: H01L24/97 ,  H01L21/565 ,  H01L23/3107 ,  H01L23/3128 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L2224/05554 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49175 ,  H01L2224/73265 ,  H01L2224/97 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01023 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/12044 ,  H01L2924/14 ,  H01L2924/15311 ,  H01L2924/181 ,  H01L2224/83 ,  H01L2224/85 ,  H01L2224/05599 ,  H01L2924/00 ,  H01L2924/00012

Abstract: A semiconductor plastic package, more particularly a preferred package structure and method for making a BGA package. A resin sealed BGA package where a supporting frame which fixedly supports semiconductor parts; i.e., an IC chip, a circuit board, or a circuit film, is sealed with resin, using a mold which is composed of an upper mold half and a lower mold half with the lower mold half having a plurality of projections, one at a position corresponding to each of the external terminals. The mold has a divisional structure which has an air vent between the divisional elements thereof.

Abstract translation: 一种半导体塑料封装，更具体地，优选的封装结构和用于制造BGA封装的方法。 树脂密封BGA封装，其中固定支撑半导体部件的支撑框架; 即IC芯片，电路板或电路膜用树脂密封，使用由上半模和下半模组成的模具，下半模具有多个突起，一个在 对应于每个外部端子的位置。 模具具有在其分割元件之间具有通风口的分隔结构。

公开(公告)号：US06178839B2

公开(公告)日：2001-01-30

申请号：US09203499

申请日：1998-12-01

Applicant: Isamu Yoshida ,  Masahiro Nobutomo ,  Takayuki Owada

Inventor： Isamu Yoshida ,  Masahiro Nobutomo ,  Takayuki Owada

IPC: F16H2524

CPC classification number: F16H25/2418 ,  F16H25/2204 ,  F16H57/0497 ,  Y10T74/19772

Abstract: A plurality of balls 3 are disposed for rolling and circulation in a spiral calculation passage defined between a spiral screw groove surface 1a formed on the outer periphery of a screw shaft 1 and a spiral screw groove surface 2a formed on the inner periphery of a ball nut 2. The opposite ends of the ball nut are each formed with a seal mounting portion 2b, in which a seal member 4 made of solid lubricating composition is mounted, sealing off the ball nut 2. The ball nut 2 has lubricating grease G sealed therein.

Abstract translation: 多个滚珠3设置成在形成在螺杆轴1的外周上的螺旋形螺旋槽表面1a和形成在滚珠螺母的内周上的螺旋形螺纹槽表面2a之间的螺旋计算通道中滚动和循环 滚珠螺母的两端各自形成有密封安装部分2b，其中安装了由固体润滑剂组合物制成的密封构件4，密封球螺母2.滚珠螺母2上密封有润滑脂G 。

公开(公告)号：US6124629A

公开(公告)日：2000-09-26

申请号：US168097

申请日：1998-10-08

Applicant: Gen Murakami ,  Kunihiro Tsubosaki ,  Masahiro Ichitani ,  Kunihiko Nishi ,  Ichiro Anjo ,  Asao Nishimura ,  Makoto Kitano ,  Akihiro Yaguchi ,  Sueo Kawai ,  Masatsugu Ogata ,  Syuuji Eguchi ,  Hiroyoshi Kokaku ,  Masanori Segawa ,  Hiroshi Hozoji ,  Takashi Yokoyama ,  Noriyuki Kinjo ,  Aizo Kaneda ,  Junichi Saeki ,  Shozo Nakamura ,  Akio Hasebe ,  Hiroshi Kikuchi ,  Isamu Yoshida ,  Takashi Yamazaki ,  Kazuyoshi Oshima ,  Tetsuro Matsumoto

Inventor： Gen Murakami ,  Kunihiro Tsubosaki ,  Masahiro Ichitani ,  Kunihiko Nishi ,  Ichiro Anjo ,  Asao Nishimura ,  Makoto Kitano ,  Akihiro Yaguchi ,  Sueo Kawai ,  Masatsugu Ogata ,  Syuuji Eguchi ,  Hiroyoshi Kokaku ,  Masanori Segawa ,  Hiroshi Hozoji ,  Takashi Yokoyama ,  Noriyuki Kinjo ,  Aizo Kaneda ,  Junichi Saeki ,  Shozo Nakamura ,  Akio Hasebe ,  Hiroshi Kikuchi ,  Isamu Yoshida ,  Takashi Yamazaki ,  Kazuyoshi Oshima ,  Tetsuro Matsumoto

IPC: H01L21/44 ,  H01L21/48 ,  H01L21/50 ,  H01L23/31 ,  H01L23/495 ,  H01L25/10 ,  H01L29/06 ,  H05K1/14 ,  H05K1/18 ,  H05K3/34

CPC classification number: H01L24/32 ,  H01L23/3107 ,  H01L23/4951 ,  H01L23/49555 ,  H01L23/49558 ,  H01L23/49568 ,  H01L23/49586 ,  H01L24/05 ,  H01L24/06 ,  H01L25/105 ,  H01L29/0657 ,  H01L2224/02166 ,  H01L2224/0401 ,  H01L2224/04042 ,  H01L2224/05554 ,  H01L2224/05556 ,  H01L2224/05599 ,  H01L2224/05624 ,  H01L2224/06136 ,  H01L2224/16 ,  H01L2224/29111 ,  H01L2224/2919 ,  H01L2224/2929 ,  H01L2224/32245 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/45565 ,  H01L2224/4569 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/4826 ,  H01L2224/48465 ,  H01L2224/48624 ,  H01L2224/48724 ,  H01L2224/48799 ,  H01L2224/73215 ,  H01L2224/85205 ,  H01L2224/8592 ,  H01L2225/1005 ,  H01L2225/1029 ,  H01L2225/107 ,  H01L24/45 ,  H01L24/48 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01023 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/01043 ,  H01L2924/01045 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01058 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01092 ,  H01L2924/0132 ,  H01L2924/014 ,  H01L2924/10253 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/15738 ,  H01L2924/15747 ,  H01L2924/1576 ,  H01L2924/181 ,  H01L2924/1815 ,  H01L2924/3025 ,  H01L2924/3511 ,  H05K1/144 ,  H05K1/181 ,  H05K3/3421 ,  Y10T29/49121

Abstract: As the semiconductor chip is large-sized, highly integrated and speeded up, it becomes difficult to pack the semiconductor chip together with leads in a package. In view of this difficulty, there has been adopted the package structure called the "Lead-On-Chip" or "Chip-On-Lead" structure in which the semiconductor and the leads are stacked and packed. In the package of this structure, according to the present invention, the gap between the leading end portions of the inner leads and the semiconductor chip is made wider than that between the inner lead portions except the leading end portions and the semiconductor chip thereby to reduce the stray capacity, to improve the signal transmission rate and to reduce the electrical noises.

Abstract translation: 由于半导体芯片尺寸大，高集成度和加速度，所以难以将半导体芯片与包装中的引线组合在一起。 鉴于这种困难，已经采用称为半导体和引线堆叠和封装的称为“片上引线”或“引线芯片”结构的封装结构。 在该结构的封装中，根据本发明，内引线和半导体芯片的前端部之间的间隙比除引导端部和半导体芯片之外的内引线部分之间的间隙宽，从而减小 杂散容量，提高信号传输速率和减少电气噪声。

公开(公告)号：US6100115A

公开(公告)日：2000-08-08

申请号：US166121

申请日：1998-10-05

Applicant: Gen Murakami ,  Kunihiro Tsubosaki ,  Masahiro Ichitani ,  Kunihiko Nishi ,  Ichiro Anjo ,  Asao Nishimura ,  Makoto Kitano ,  Akihiro Yaguchi ,  Sueo Kawai ,  Masatsugu Ogata ,  Syuuji Eguchi ,  Hiroyoshi Kokaku ,  Masanori Segawa ,  Hiroshi Hozoji ,  Takashi Yokoyama ,  Noriyuki Kinjo ,  Aizo Kaneda ,  Junichi Saeki ,  Shozo Nakamura ,  Akio Hasebe ,  Hiroshi Kikuchi ,  Isamu Yoshida ,  Takashi Yamazaki ,  Kazuyoshi Oshima ,  Tetsuro Matsumoto

Inventor： Gen Murakami ,  Kunihiro Tsubosaki ,  Masahiro Ichitani ,  Kunihiko Nishi ,  Ichiro Anjo ,  Asao Nishimura ,  Makoto Kitano ,  Akihiro Yaguchi ,  Sueo Kawai ,  Masatsugu Ogata ,  Syuuji Eguchi ,  Hiroyoshi Kokaku ,  Masanori Segawa ,  Hiroshi Hozoji ,  Takashi Yokoyama ,  Noriyuki Kinjo ,  Aizo Kaneda ,  Junichi Saeki ,  Shozo Nakamura ,  Akio Hasebe ,  Hiroshi Kikuchi ,  Isamu Yoshida ,  Takashi Yamazaki ,  Kazuyoshi Oshima ,  Tetsuro Matsumoto

IPC: H01L21/44 ,  H01L21/48 ,  H01L21/50 ,  H01L23/31 ,  H01L23/495 ,  H01L25/10 ,  H01L29/06 ,  H05K1/14 ,  H05K1/18 ,  H05K3/34

CPC classification number: H01L24/32 ,  H01L23/3107 ,  H01L23/4951 ,  H01L23/49555 ,  H01L23/49558 ,  H01L23/49568 ,  H01L23/49586 ,  H01L24/05 ,  H01L24/06 ,  H01L25/105 ,  H01L29/0657 ,  H01L2224/02166 ,  H01L2224/0401 ,  H01L2224/04042 ,  H01L2224/05554 ,  H01L2224/05556 ,  H01L2224/05599 ,  H01L2224/05624 ,  H01L2224/06136 ,  H01L2224/16 ,  H01L2224/29111 ,  H01L2224/2919 ,  H01L2224/2929 ,  H01L2224/32245 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/45565 ,  H01L2224/4569 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/4826 ,  H01L2224/48465 ,  H01L2224/48624 ,  H01L2224/48724 ,  H01L2224/48799 ,  H01L2224/73215 ,  H01L2224/85205 ,  H01L2224/8592 ,  H01L2225/1005 ,  H01L2225/1029 ,  H01L2225/107 ,  H01L24/45 ,  H01L24/48 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01023 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/01043 ,  H01L2924/01045 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01058 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01092 ,  H01L2924/0132 ,  H01L2924/014 ,  H01L2924/10253 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/15738 ,  H01L2924/15747 ,  H01L2924/1576 ,  H01L2924/181 ,  H01L2924/1815 ,  H01L2924/3025 ,  H01L2924/3511 ,  H05K1/144 ,  H05K1/181 ,  H05K3/3421 ,  Y10T29/49121

Abstract: As the semiconductor chip is large-sized, highly integrated and speeded up, it becomes difficult to pack the semiconductor chip together with leads in a package. In view of this difficulty, there has been adopted the package structure called the "Lead-On-Chip" or "Chip-On-Lead" structure in which the semiconductor and the leads are stacked and packed. In the package of this structure, according to the present invention, the gap between the leading end portions of the inner leads and the semiconductor chip is made wider than that between the inner lead portions except the leading end portions and the semiconductor chip thereby to reduce the stray capacity, to improve the signal transmission rate and to reduce the electrical noises.

公开(公告)号：US5914531A

公开(公告)日：1999-06-22

申请号：US805737

申请日：1997-02-25

Applicant: Shigeharu Tsunoda ,  Junichi Saeki ,  Isamu Yoshida ,  Kazuya Ooji ,  Michiharu Honda ,  Makoto Kitano ,  Nae Yoneda ,  Shuji Eguchi ,  Kunihiko Nishi ,  Ichiro Anjoh ,  Kenichi Otsuka

Inventor： Shigeharu Tsunoda ,  Junichi Saeki ,  Isamu Yoshida ,  Kazuya Ooji ,  Michiharu Honda ,  Makoto Kitano ,  Nae Yoneda ,  Shuji Eguchi ,  Kunihiko Nishi ,  Ichiro Anjoh ,  Kenichi Otsuka

IPC: H01L21/50 ,  H01L21/56 ,  H01L21/58 ,  H01L21/60 ,  H01L23/04 ,  H01L23/31 ,  H01L23/495

CPC classification number: H01L21/565 ,  H01L23/3107 ,  H01L23/3128 ,  H01L2224/05554 ,  H01L2224/32225 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L24/45 ,  H01L24/48 ,  H01L2924/00014 ,  H01L2924/01079 ,  H01L2924/01087 ,  H01L2924/12044 ,  H01L2924/14 ,  H01L2924/15311 ,  H01L2924/181

Abstract: A semiconductor plastic package, more particularly a preferred package structure and method for making a BGA package. A resin sealed BGA package where a supporting frame which fixedly supports semiconductor parts; i.e., an IC chip, a circuit board, or a circuit film, is sealed with resin, using a mold which is composed of an upper mold half and a lower mold half with the lower mold half having a plurality of projections, one at a position corresponding to each of the external terminals. The mold has a divisional structure which has an air vent between the divisional elements thereof.

Abstract translation: 一种半导体塑料封装，更具体地，优选的封装结构和用于制造BGA封装的方法。 树脂密封BGA封装，其中固定支撑半导体部件的支撑框架; 即IC芯片，电路板或电路膜用树脂密封，使用由上半模和下半模构成的模具，下半模具有多个突起，一个在 对应于每个外部端子的位置。 模具具有在其分割元件之间具有通风口的分隔结构。

公开(公告)号：US5125821A

公开(公告)日：1992-06-30

申请号：US429471

申请日：1989-10-31

Applicant: Junichi Saeki ,  Isamu Yoshida ,  Aizo Kaneda ,  Kazuhiro Sugino ,  Kunihiko Nishi

Inventor： Junichi Saeki ,  Isamu Yoshida ,  Aizo Kaneda ,  Kazuhiro Sugino ,  Kunihiko Nishi

IPC: G01N3/00 ,  G01N33/44

CPC classification number: G01N33/442 ,  G01N2203/0092

Abstract: A measuring device for enabling an evaluation of a moldability of a thermosetting resin by determination of parameters suitable for high accuracy forecasting of flow and curing behaviors of the thermosetting resin within a metal mold, as well as a metal mold for molding a thermosetting resin and method for constructing runners of the metal mold which is effective to minimize if not prevent the occurrence of false in moldings. By utilizing unique or peculiar parameters of the thermosetting resin which are not influenced by a molding condition and by conducting a flow simulation with a metal mold having a flow passage of arbitrary dimensions using the determined values for the parameters, a forecasting of a flow in an actual metal mold is enabled so as to preselect optimum molding conditions and flow passage dimensions for a metal mold.