Micron Technology, Inc. v. Tessera, Inc.

440 F. Supp. 2d 591, 2006 U.S. Dist. LEXIS 47846, 2006 WL 1984143
CourtDistrict Court, E.D. Texas
DecidedJuly 13, 2006
DocketCivil Action 2:05cv319
StatusPublished
Cited by2 cases

This text of 440 F. Supp. 2d 591 (Micron Technology, Inc. v. Tessera, Inc.) is published on Counsel Stack Legal Research, covering District Court, E.D. Texas primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Micron Technology, Inc. v. Tessera, Inc., 440 F. Supp. 2d 591, 2006 U.S. Dist. LEXIS 47846, 2006 WL 1984143 (E.D. Tex. 2006).

Opinion

MEMORANDUM OPINION AND ORDER

LOVE, United States Magistrate Judge.

This claim construction opinion construes terms in U.S. Patent Nos. 4,992,849 (“the '849 patent”), 5,107,328 (“the '328 patent”), and Re. 36,325 (“the '325 patent”). Plaintiffs, Micron Technology, Inc. and Micron Semiconductor Products, Inc. (collectively “Micron”), have asserted several other patents against Defendant, Tessera, Inc. (“Tessera”), in this lawsuit, but only claim language from the '849, '325, and '328 patents remains in dispute.

The Patents

The patents in suit generally deal with microchip packaging. The '328 patent describes a means for packaging a semiconductor die with centrally or laterally locat *594 ed bond pads without the use of a lead frame. In the past, as semiconductor dies got smaller, new smaller frames also had to be designed. By dispensing with the lead frame altogether, the '328 patent allows the package to accommodate smaller dies without the necessity of designing another lead frame. The package houses the die in a series of shelves, which are capped by a lid and a base.

Both the '849 and '325 patents relate to means for connecting multiple semiconductor die onto a polymide substrate where the substrate functions as both a lead frame connection for the semiconductor die and as a printed circuit board.

Applicable Law

“It is a ‘bedrock principle’ of patent law that ‘the claims of a patent define the invention to which the patentee is entitled the right to exclude.” Phillips v. AWH Corp., 415 F.3d 1303, 1312 (Fed.Cir.2005) (en banc) (quoting Innova/Pure Water Inc. v. Safari Water Filtration Sys., Inc., 381 F.3d 1111, 1115 (Fed.Cir.2004)). In claim construction, courts examine the patent’s intrinsic evidence to define the patented invention’s scope. See id.; C.R. Bard, Inc. v. U.S. Surgical Corp., 388 F.3d 858, 861 (Fed.Cir.2004); Bell Atl. Network Servs., Inc. v. Covad Communications Group, Inc., 262 F.3d 1258, 1267 (Fed.Cir.2001). This intrinsic evidence includes the claims themselves, the specification, and the prosecution history. See Phillips, 415 F.3d at 1314; C.R. Bard, Inc., 388 F.3d at 861. Courts give claim terms their ordinary and accustomed meaning as understood by one of ordinary skill in the art at the time of the invention in the context of the entire patent. Phillips, 415 F.3d at 1312-13; Alloc, Inc. v. Int’l Trade Comm’n, 342 F.3d 1361, 1368 (Fed.Cir.2003).

The claims themselves provide substantial guidance in determining the meaning of particular claim terms. Phillips, 415 F.3d at 1314. First, a term’s context in the asserted claim can be very instructive. Id. Other asserted or unas-serted claims can also aid in determining the claim’s meaning because claim terms are typically used consistently throughout the patent. Id. Differences among the claim terms can also assist in understanding a term’s meaning. Id. For example, when a dependent claim adds a limitation to an independent claim, it is presumed that the independent claim does not include the limitation. Id. at 1314-15.

Claims “must be read in view of the specification, of which they are a part.” Id. (quoting Markman v. Westview Instruments, Inc., 52 F.3d 967, 978 (Fed.Cir.1995)). “[T]he specification ‘is always highly relevant to the claim construction analysis. Usually, it is dispositive; it is the single best guide to the meaning of a disputed term.’ ” Id. (quoting Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed.Cir.1996)); Teleflex, Inc. v. Ficosa N. Am. Corp., 299 F.3d 1313, 1325 (Fed.Cir.2002). This is true because a patentee may define his own terms, give a claim term a different meaning than the term would otherwise possess, or disclaim or disavow the claim scope. Phillips, 415 F.3d at 1316. In these situations, the inventor’s lexicography governs. Id. Also, the specification may resolve ambiguous claim terms “where the ordinary and accustomed meaning of the words used in the claims lack sufficient clarity to permit the scope of the claim to be ascertained from the words alone.” Teleflex, Inc., 299 F.3d at 1325. But, “although the specification may aid the court in interpreting the meaning of disputed claim language, particular embodiments and examples appearing in the specification will not generally be read into the claims.” Comark Communications, Inc. v. Harris Corp., 156 F.3d 1182, 1187 (Fed.Cir.1998); see also Phillips, 415 F.3d at 1323. The prosecution history is another tool to supply the *595 proper context for claim construction because a patent applicant may also define a term in prosecuting the patent. Home Diagnostics, Inc., v. LifeScan, Inc., 381 F.3d 1352, 1356 (Fed.Cir.2004) (“As in the case of the specification, a patent applicant may define a term in prosecuting a patent.”).

Although extrinsic evidence can be useful, it is “less significant than the intrinsic record in determining ‘the legally operative meaning of claim language.’ ” Phillips, 415 F.3d at 1317 (quoting C.R. Bard, Inc., 388 F.3d at 862). Technical dictionaries and treatises may help a court understand the underlying technology and the manner in which one skilled in the art might use claim terms, but technical dictionaries and treatises may provide definitions that are too broad or may not be indicative of how the term is used in the patent. Id. at 1318. Similarly, expert testimony may aid a court in understanding the underlying technology and determining the particular meaning of a term in the pertinent field, but an expert’s conclusory, unsupported assertions as to a term’s definition is entirely unhelpful to a court. Id. Generally, extrinsic evidence is “less reliable than the patent and its prosecution history in determining how to read claim terms.” Id.

The Terms

The '819 and '325 Patents

Proceeding on two separate theories, Tessera argues that the preambles to Claim 1 of the '849 and '325 patents limit those claims. 1

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Bluebook (online)
440 F. Supp. 2d 591, 2006 U.S. Dist. LEXIS 47846, 2006 WL 1984143, Counsel Stack Legal Research, https://law.counselstack.com/opinion/micron-technology-inc-v-tessera-inc-txed-2006.