Semiconductor devices including voltage switchable materials...

Details Semiconductor devices including voltage switchable materials... Semiconductor devices including voltage switchable materials...

2011-04-12

2011-04-12

Parker, Kenneth A (Department: 2815)

Active solid-state devices (e.g., transistors, solid-state diode

Combined with electrical contact or lead

Chip mounted on chip

C257S778000, C257S787000, C257S686000, C257SE23117

Reexamination Certificate

active

07923844

ABSTRACT:
Semiconductor devices are provided that employ voltage switchable materials for over-voltage protection. In various implementations, the voltage switchable materials are substituted for conventional die attach adhesives, underfill layers, and encapsulants. While the voltage switchable material normally functions as a dielectric cmaterial, during an over-voltage event the voltage switchable material becomes electrically conductive and can conduct electricity to ground. Accordingly, the voltage switchable material is in contact with a path to ground such as a grounded trace on a substrate, or a grounded solder ball in a flip-chip package.

REFERENCES:
patent: 3347724 (1967-10-01), Schneble, Jr. et al.
patent: 3685026 (1972-08-01), Wakabayashi et al.
patent: 3685028 (1972-08-01), Wakabayashi et al.
patent: 3723635 (1973-03-01), Smith
patent: 3808576 (1974-04-01), Castonguay et al.
patent: 3926916 (1975-12-01), Mastrangelo
patent: 3977957 (1976-08-01), Kosowsky et al.
patent: 4113899 (1978-09-01), Henry et al.
patent: 4133735 (1979-01-01), Afromowitz et al.
patent: 4252692 (1981-02-01), Taylor et al.
patent: 4331948 (1982-05-01), Malinaric et al.
patent: 4359414 (1982-11-01), Mastrangelo
patent: 4405432 (1983-09-01), Kosowsky
patent: 4439809 (1984-03-01), Weight et al.
patent: 4506285 (1985-03-01), Einzinger et al.
patent: 4591411 (1986-05-01), Reimann
patent: 4642160 (1987-02-01), Burgess
patent: 4702860 (1987-10-01), Kinderov et al.
patent: 4726877 (1988-02-01), Fryd et al.
patent: 4726991 (1988-02-01), Hyatt et al.
patent: 4799128 (1989-01-01), Chen
patent: 4888574 (1989-12-01), Rice et al.
patent: 4892776 (1990-01-01), Rice
patent: 4918033 (1990-04-01), Bartha et al.
patent: 4928199 (1990-05-01), Diaz et al.
patent: 4935584 (1990-06-01), Boggs
patent: 4977357 (1990-12-01), Shrier
patent: 4992333 (1991-02-01), Hyatt
patent: 4996945 (1991-03-01), Dix, Jr.
patent: 5068634 (1991-11-01), Shrier
patent: 5092032 (1992-03-01), Murakami
patent: 5095626 (1992-03-01), Kitamura et al.
patent: 5099380 (1992-03-01), Childers et al.
patent: 5142263 (1992-08-01), Childers et al.
patent: 5148355 (1992-09-01), Lowe et al.
patent: 5183698 (1993-02-01), Stephenson et al.
patent: 5189387 (1993-02-01), Childers et al.
patent: 5246388 (1993-09-01), Collins et al.
patent: 5248517 (1993-09-01), Shrier et al.
patent: 5252195 (1993-10-01), Kobayashi et al.
patent: 5260848 (1993-11-01), Childers
patent: 5262754 (1993-11-01), Collins
patent: 5278535 (1994-01-01), Xu et al.
patent: 5282312 (1994-02-01), DiStefano et al.
patent: 5294374 (1994-03-01), Martinez et al.
patent: 5295297 (1994-03-01), Kitamura et al.
patent: 5300208 (1994-04-01), Angelopoulos et al.
patent: 5317801 (1994-06-01), Tanaka et al.
patent: 5340641 (1994-08-01), Xu
patent: 5347258 (1994-09-01), Howard et al.
patent: 5354712 (1994-10-01), Ho et al.
patent: 5367764 (1994-11-01), DiStefano et al.
patent: 5378858 (1995-01-01), Bruckner et al.
patent: 5380679 (1995-01-01), Kano
patent: 5393597 (1995-02-01), Childers et al.
patent: 5403208 (1995-04-01), Felcman et al.
patent: 5404637 (1995-04-01), Kawakami
patent: 5413694 (1995-05-01), Dixon et al.
patent: 5416662 (1995-05-01), Kurasawa et al.
patent: 5440075 (1995-08-01), Kawakita et al.
patent: 5444593 (1995-08-01), Allina
patent: 5476471 (1995-12-01), Shifrin et al.
patent: 5481795 (1996-01-01), Hatakeyama et al.
patent: 5483407 (1996-01-01), Anastasio et al.
patent: 5487218 (1996-01-01), Bhatt et al.
patent: 5493146 (1996-02-01), Pramanik et al.
patent: 5501350 (1996-03-01), Yoshida et al.
patent: 5502889 (1996-04-01), Casson et al.
patent: 5510629 (1996-04-01), Karpovich et al.
patent: 5550400 (1996-08-01), Takagi et al.
patent: 5557136 (1996-09-01), Gordon et al.
patent: 5654564 (1997-08-01), Mohsen
patent: 5669381 (1997-09-01), Hyatt
patent: 5685070 (1997-11-01), Alpaugh et al.
patent: 5708298 (1998-01-01), Masayuki et al.
patent: 5714794 (1998-02-01), Tsuyama et al.
patent: 5734188 (1998-03-01), Murata et al.
patent: 5744759 (1998-04-01), Ameen et al.
patent: 5781395 (1998-07-01), Hyatt
patent: 5802714 (1998-09-01), Kobayashi et al.
patent: 5807509 (1998-09-01), Shrier et al.
patent: 5808351 (1998-09-01), Nathan et al.
patent: 5834160 (1998-11-01), Ferry et al.
patent: 5834824 (1998-11-01), Shepherd et al.
patent: 5834893 (1998-11-01), Bulovic et al.
patent: 5848467 (1998-12-01), Khandros et al.
patent: 5856910 (1999-01-01), Yurchenko et al.
patent: 5865934 (1999-02-01), Yamamoto et al.
patent: 5874902 (1999-02-01), Heinrich et al.
patent: 5906042 (1999-05-01), Lan et al.
patent: 5910685 (1999-06-01), Watanabe et al.
patent: 5926951 (1999-07-01), Khandros et al.
patent: 5940683 (1999-08-01), Holm et al.
patent: 5946555 (1999-08-01), Crumly et al.
patent: 5955762 (1999-09-01), Hivley
patent: 5956612 (1999-09-01), Elliott et al.
patent: 5962815 (1999-10-01), Lan et al.
patent: 5970321 (1999-10-01), Hively
patent: 5972192 (1999-10-01), Dubin et al.
patent: 5977489 (1999-11-01), Crotzer et al.
patent: 6013358 (2000-01-01), Winnett et al.
patent: 6023028 (2000-02-01), Neuhalfen
patent: 6064094 (2000-05-01), Intrater et al.
patent: 6108184 (2000-08-01), Minervini et al.
patent: 6130459 (2000-10-01), Intrater
patent: 6160695 (2000-12-01), Winnett et al.
patent: 6172590 (2001-01-01), Shrier et al.
patent: 6184280 (2001-02-01), Shituba
patent: 6191928 (2001-02-01), Rector et al.
patent: 6198392 (2001-03-01), Hahn et al.
patent: 6211554 (2001-04-01), Whitney et al.
patent: 6239687 (2001-05-01), Shrier et al.
patent: 6251513 (2001-06-01), Rector et al.
patent: 6310752 (2001-10-01), Shrier et al.
patent: 6316734 (2001-11-01), Yang
patent: 6340789 (2002-01-01), Petritsch et al.
patent: 6351011 (2002-02-01), Whitney et al.
patent: 6373719 (2002-04-01), Behling et al.
patent: 6407411 (2002-06-01), Wojnarowski
patent: 6433394 (2002-08-01), Intrater
patent: 6448900 (2002-09-01), Chen
patent: 6455916 (2002-09-01), Robinson
patent: 6512458 (2003-01-01), Kobayashi et al.
patent: 6534422 (2003-03-01), Ichikawa et al.
patent: 6542065 (2003-04-01), Shrier et al.
patent: 6549114 (2003-04-01), Whitney et al.
patent: 6570765 (2003-05-01), Behling et al.
patent: 6593597 (2003-07-01), Sheu
patent: 6628498 (2003-09-01), Whitney et al.
patent: 6642297 (2003-11-01), Hyatt et al.
patent: 6657532 (2003-12-01), Shrier et al.
patent: 6693508 (2004-02-01), Whitney et al.
patent: 6709944 (2004-03-01), Durocher et al.
patent: 6741217 (2004-05-01), Toncich et al.
patent: 6797145 (2004-09-01), Kosowsky
patent: 6882051 (2005-04-01), Majumdar et al.
patent: 6903175 (2005-06-01), Gore et al.
patent: 6911676 (2005-06-01), Yoo
patent: 6916872 (2005-07-01), Yadav et al.
patent: 6981319 (2006-01-01), Shrier
patent: 7034652 (2006-04-01), Whitney et al.
patent: 7049926 (2006-05-01), Shrier et al.
patent: 7053468 (2006-05-01), Lee
patent: 7064353 (2006-06-01), Bhat
patent: 7132922 (2006-11-01), Harris et al.
patent: 7141184 (2006-11-01), Chacko et al.
patent: 7173288 (2007-02-01), Lee et al.
patent: 7183891 (2007-02-01), Harris et al.
patent: 7202770 (2007-04-01), Harris et al.
patent: 7205613 (2007-04-01), Fjelstad et al.
patent: 7218492 (2007-05-01), Shrier
patent: 7279724 (2007-10-01), Collins et al.
patent: 7320762 (2008-01-01), Greuter et al.
patent: 7417194 (2008-08-01), Shrier
patent: 7446030 (2008-11-01), Kosowsky
patent: 7492504 (2009-02-01), Chopra et al.
patent: 7528467 (2009-05-01), Lee
patent: 7535462 (2009-05-01), Spath et al.
patent: 7585434 (2009-09-01), Morita
patent: 2002/0004258 (2002-01-01), Nakayama et al.
patent: 2002/0061363 (2002-05-01), Halas et al.
patent: 2003/0010960 (2003-01-01), Greuter et al.
patent: 2003/0079910 (2003-05-01), Kosowsky
patent: 2004/0095658 (2004-05-01), Buretea et al.
patent: 2004/0154828 (2004-08-01), Moller et al.
patent: 2004/0211942 (2004-10-01), Clark et al.
patent: 2005/0026334 (2005-02-01), Knall
patent: 2005/0106098 (2005-05-01), Tsang et al.
patent: 2005/0218380 (2005-10-01), Gramespacher et al.
patent: 2005/0274455 (2005-12-01), Extrand
patent: 2005/0274956 (2005-12-01), Bhat
patent: 2006/0060880 (2006-03-01), Lee et al.
patent: 2006/0152334 (2006-07-01), Maercklein et al.
pat

Affiliated with

Also associated with

Rating

Semiconductor devices including voltage switchable materials... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor devices including voltage switchable materials..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor devices including voltage switchable materials... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2627353