发明名称 MOLDING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a molding device which is capable of preventing an IC package from increasing in manufacturing cost, releasing an IC package from a molding die and injection pins while protecting a semiconductor chip against fracture or cracking, and restraining a modification cost. SOLUTION: A first ejection pin 19a is formed longer than a second ejection pin 19b. Second springs 25, a second ejection pin return plates 23, a flange 21b of second ejection pint 19b, second ejection pin pressing plates 27, first springs 31, a first ejection pin return plate 29, flanges 21a of first ejection pins 19a, and a first ejection pressing plate 33 are arranged in this order from a recess 15 provided in a lower molding die 13. The total sum of spring forces of the second springs 25 is smaller than the total sum of spring forces of the first springs 31.
申请公布号 JPH11195664(A) 申请公布日期 1999.07.21
申请号 JP19970368177 申请日期 1997.12.26
申请人 RICOH CO LTD 发明人 GOTO HIROYUKI
分类号 B29C45/42;B29C45/14;B29C45/40;B29L31/34;H01L21/56;(IPC1-7):H01L21/56 主分类号 B29C45/42
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