Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Metallic housing or support
Reexamination Certificate
2008-06-30
2010-06-22
Nguyen, Dao H (Department: 2818)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Metallic housing or support
Reexamination Certificate
active
07741161
ABSTRACT:
A method for making an IC package with transparent encapsulant includes providing a leadframe, where the leadframe includes a first die pad and a second die pad, disposing a first die on the first die pad and a second die on the second die pad, forming a cavity on the leadframe, where the cavity includes the first die pad and the second die pad, injecting an encapsulant material into the cavity and cutting the injected encapsulant material and the leadframe to form a first IC package and a second IC package. The encapsulant material is transparent for visible wavelengths. The injection of the encapsulant material is performed at an encapsulant temperature ranging from 140° C. to 160° C.
REFERENCES:
patent: 3778887 (1973-12-01), Suzuki et al.
patent: 5122860 (1992-06-01), Kikuchi et al.
patent: 5134773 (1992-08-01), LeMaire et al.
patent: 5172214 (1992-12-01), Casto
patent: 5417905 (1995-05-01), Lemaire et al.
patent: 5637913 (1997-06-01), Kajijara et al.
patent: 5854740 (1998-12-01), Cha
patent: 5854741 (1998-12-01), Shim et al.
patent: 5863810 (1999-01-01), Kaldenberg
patent: 5869353 (1999-02-01), Levy et al.
patent: 5877546 (1999-03-01), You
patent: 5942794 (1999-08-01), Okumura et al.
patent: 6043109 (2000-03-01), Yang et al.
patent: 6091134 (2000-07-01), Sakamoto et al.
patent: 6130473 (2000-10-01), Mostafazadeh et al.
patent: 6137160 (2000-10-01), Ishikawa
patent: 6143981 (2000-11-01), Glenn
patent: 6215177 (2001-04-01), Corisis et al.
patent: 6229200 (2001-05-01), Mclellan et al.
patent: 6242281 (2001-06-01), Mclellan et al.
patent: 6281568 (2001-08-01), Glenn et al.
patent: 6355502 (2002-03-01), Kang et al.
patent: 6377742 (2002-04-01), Go
patent: RE37690 (2002-05-01), Kitano et al.
patent: 6433277 (2002-08-01), Glenn
patent: 6455356 (2002-09-01), Glenn et al.
patent: 6483177 (2002-11-01), Yee
patent: 6521987 (2003-02-01), Glenn et al.
patent: 6563201 (2003-05-01), Golz
patent: 6605866 (2003-08-01), Crowley et al.
patent: 6611047 (2003-08-01), Hu et al.
patent: 6630728 (2003-10-01), Glenn
patent: 6684496 (2004-02-01), Glenn
patent: 6696750 (2004-02-01), Yin et al.
patent: 6703700 (2004-03-01), Hsu et al.
patent: 6821818 (2004-11-01), Chen et al.
patent: 6841414 (2005-01-01), Hu et al.
patent: 6841888 (2005-01-01), Yan et al.
patent: 6867483 (2005-03-01), Huat et al.
patent: 6885086 (2005-04-01), Fogelson et al.
patent: 6927483 (2005-08-01), Lee et al.
patent: 2002/0001869 (2002-01-01), Fjelstad
patent: 2002/0105063 (2002-08-01), Huat et al.
patent: 2003/0073265 (2003-04-01), Hu et al.
patent: 2004/0089926 (2004-05-01), Hsu et al.
patent: 2004/0130007 (2004-07-01), Hsu et al.
patent: 2004/0178483 (2004-09-01), Hsu et al.
patent: 2005/0067676 (2005-03-01), Mahadevan et al.
patent: 2006/0148127 (2006-07-01), Ong et al.
patent: 100 14 306 (2001-10-01), None
patent: 63-033854 (1988-02-01), None
patent: 63-188964 (1988-08-01), None
patent: 63-289951 (1988-11-01), None
patent: 01-106456 (1989-04-01), None
patent: 02-129948 (1990-05-01), None
patent: 03-69248 (1991-07-01), None
patent: 06-092076 (1994-04-01), None
Applewhite, “Since you asked [technology forecast survey]”, Spectrum, IEEE vol. 40, No. 1,( Jan. 2003), pp. 11-16.
Carsem, Inc., “Carsem Announces an Optically Transparent MLP (QFN),” [Press Release], (Sep. 14, 2004), 2 pages total.
Garrett, “Controlling Warpage in BGA Packages,” BP Amoco Electronic Materials,Alpharetta, Georgia, retrieved from the Internet <<http://www.cooksonsemi.com/tech—art/pdfs/Controlling%20Warpage.pdf>>Semiconductor Packaging Symposium—Session VIII, SEMICON West 1999.
Srikanth et al., “A Viscoelastic Warpage Analysis of Molded Package,” Technical Symposium , Semicon Singapore (2002), pp. 89-99.
Tummala et al.,Microelectronics Packaging Handbook, Van Nostrand Reinhold, New York, (1989), pp. 554.
Zhao et al., “Warpage Control of Clear Compound Molded Packages,” ASM Technology, Singapore, Semicon China Trade Show (Mar. 12-14, 2003), Shanghai, 5 pages total.
Proprietary material under MPEP § 724.02.
Chan Boon Meng
Cheong Mun Tuck
Khor Ah Lek
Lee Kock Huat
Thum Min Kong
Carsem (M) Sdn. Bhd.
Nguyen Dao H
Nguyen Tram H
Townsend and Townsend / and Crew LLP
LandOfFree
Method of making integrated circuit package with transparent... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making integrated circuit package with transparent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making integrated circuit package with transparent... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4230931