摘要:
A high performance test head (18) communicates test signals between integrated circuit test pads and integrated circuit tester. Test head (18) comprises metal bumps (22) that electrically couple with test pads to communicate test signals between test pads and test circuitry. Planar foundation plate (30) provides structural support. Compliant material layer (26) associates with metal bumps (22) and compresses to assure positive contact between metal bumps (22) and test pads. Compliant material layer (26) is positioned between foundation plate (30) and metal bumps (22). Interconnection line (20) adjoins test head (18) to connect metal bumps (22) between test circuitry and integrated circuits. The present invention includes a method for high performance communication of test signals between test pads and test circuitry. The present invention further includes the method of applying semiconductor device fabrication techniques to produce a high performance test head (18).
摘要:
A compound of the formula: ##STR1## wherein R.sup.1 is aryl optionally substituted with a substituent selected from the group consisting of halogen and halo(lower)alkyl; lower alkyl or cyclo(lower)alkyl; andR.sup.2 is hydrogen or lower alkyl, orR.sup.1 and R.sup.2 are taken together with the attached nitrogen atom to form a heterocyclic group optionally substituted with a substituent selected from the group consisting of lower alkyl and esterified carboxy,R.sup.3 is hydrogen or lower alkyl, andR.sup.4 is lower alkyl,and its pharmaceutically acceptable salt, a process for the preparation thereof and pharmaceutical composition comprising the same.
摘要:
The invention relates to novel compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen, lower alkoxycarbonyl, phenylsulfonyl, phenylsulfonyl substituted with 1 to 3 substituent(s) selected from the group consisting of halogen, nitro, lower alkoxy, mono (or di or tri)halo(lower)alkyl and lower alkyl, phenylcarbamoyl, lower alkylsulfonyl, benzoyl or thienylsulfonyl;R.sup.2 is phenylsulfonyl or phenylsulfonyl substituted with 1 to 3 substituent(s) selected from the group consisting of halogen, lower alkyl, lower alkoxy and mono(or di or tri)halo(lower)alkyl,R.sup.3 is carboxy(lower)alkyl, lower alkyl substituted with carboxy and 1 to 3 halogen atom(s), esterified carboxy(lower)alkyl, carbamoyl(lower)alkyl, lower alkylsulfonylcarbamoyl(lower)alkyl, phenylsulfonylcarbamoyl(lower)alkyl, carboxyphenyl, esterified carboxyphenyl, carboxy, esterified carboxy, hydroxy(lower)alkyl, sulfino(lower)alkyl, phosphono(lower)alkyl, di(lower)alkoxyphosphoryl(lower)alkyl or halo(lower)alkyl,R.sup.7 is hydrogen or lower alkyl, andA is ##STR2## in which R.sup.8 is hydrogen or lower alkyl, or a pharmaceutically acceptable salt thereof, useful as therapeutic agents for thrombosis, asthma and nephritis.
摘要:
A semiconductor memory device, comprising an information memory array storing data words each consisting of a predetermined number of information bits, a memory array storing bits generated in accordance with an error detect/correct code, the memory array having bit lines equal in number to the information bits forming each of the data words, the memory array being programmable to create error detection and correction data on the basis of which a bit in error in the main memory array is to be detected and corrected, main sense amplifiers for detecting the information bits read from the main memory array, the main sense amplifiers being equal in number to the information bits forming each of the data words, auxiliary sense amplifiers for detecting an error bit read from the main memory array and output through the main sense amplifiers, the auxiliary sense amplifiers being equal in number to the main sense amplifiers and each producing an error signal in response to an erroneous information bit read from the main memory array through any of the main sense amplifiers, and an error correction circuit intervening between the main and auxiliary sense amplifiers and transparent to an error-free information bit read from the main memory array, the error correction circuit being responsive to the error signal from any of the auxiliary sense amplifiers for inverting the logic state of an erroneous information bit read from the main memory array.
摘要:
The invention relates to a PAF-antagonist pharmaceutical composition comprising a compound of the formula: ##STR1## wherein R.sup.1 is pyridyl(lower)alkyl or thiazolyl(lower)alkyl,R.sup.2 is N-lower alkylindolyl(lower)alkyl which may have lower alkyl or halogen on the indole ring, andR.sup.3 and R.sup.4 are each hydrogen or lower alkyl; or pharmaceutically acceptable salt thereof.
摘要:
Novel compounds of the following formula have restorative pharmacological activities in immuno-deficient hosts, ##STR1## wherein R.sup.1 is amino or a protected amino group,R.sup.2 is hydrogen, carboxy or a protected carboxy group,R.sup.3 is hydrogen, carboxy or a protected carboxy group,R.sup.4 is lower alkyl, amino(lower)alkyl, protected amino(lower)alkyl, carbamoyl(lower)alkyl or protected carbamoyl(lower)alkyl,R.sup.5 is hydrogen or lower alkyl, andR.sup.6 is hydrogen, hydroxyphenyl(lower)alkyl, imidazolyl(lower)alkyl or indolyl(lower)alkyl.
摘要:
A dynamic MOS read/write memory has a substrate bias generator circuit which includes, in this example, four separate pump circuits. A first of these operates only during power-up to quickly produce the desired back bias; this pump circuit uses a high frequency oscillator and a low impedence drive, and cuts off to save power as soon as the necessary bias is reached. A second generates a smaller sustaining current, using a lower frequency oscillator and higher impedance drive; this functions to compensate for leakage during idle periods. The third and fourth pump circuits are driven by RAS and CAS, so these occur only when needed, and at a rate dependent upon the actual operating condition of the memory.
摘要:
This invention relates to new 2-azetidinone compounds, which have antimicrobial activities, and to processes for the preparation thereof, and more particularly, this invention provides new 2-azetidinone compounds, especially ones having various substituted carboxyalkyl radicals at the first position and having various groups at the fourth position of the azetidinone nucleus, which have antimicrobial activities against various pathogenic microorganisms and are useful as antibiotics in treatment for microbial infections in mammals including human beings and animals.
摘要:
The invention relates to novel compounds of high antimicrobial activity, and to novel intermediates for the preparation of said compounds, said intermediates being of the formula: ##STR1## in which W is a protective amino group andY is --S--Ag or --S--R.sup.5, wherein R.sup.5 is a mercapto-protective group, orW and Y are combined together to form a group of the formula: ##STR2## wherein R.sup.a is a residue excluded a radical "--CONH--" from acylamino, andZ is a group of the formula: ##STR3## wherein R.sup.3 is carboxy or a protected carboxy group andZ.sup.1 is azido, hydroxy, amino, formamido, isocyano or halogen,provided that, when W and Y are combined together to form a group of the formula: ##STR4## wherein R.sup.a is as defined above, then Z is a group of the formula: ##STR5## wherein R.sup.3 is as defined above, or salts thereof.
摘要:
The invention relates to novel peptides and their pharmaceutically acceptable salts, particularly useful for pharmaceutical purposes such as in the therapeutic treatment of infectious diseases caused by pathogenic microorganisms. The compounds have the structure ##STR1## wherein R.sup.1 is hydrogen or acyl;R.sup.2 is carboxy or protected carboxy or a group of the formula: --COHN--R.sub.a.sup.2 wherein R.sub.a.sup.2 is carboxy (lower) alkyl or protected carboxy (lower) alkyl;R.sup.3 is carboxy, protected carboxy, lower alkyl, hydroxyphenyl, carbamoyl or a group of the formula: ##STR2## wherein R.sub.a.sup.3 is hydrogen, amino, protected amino or acylamino, R.sub.b.sup.3 is carboxy or protected carboxy,R.sup. is carboxy, protected carboxy, carbamoyl, carboxy (lower) alkyl or protected carboxy (lower) alkyl;l is an integer 2,m is an integer 0 to 2 andn is an integer 1, provided that, whenR.sup.1 is hydrogen or acyl,R.sup.2 is carboxy, protected carboxy or a group of the formula: --CONHR.sub.a.sup.2 wherein R.sub.a.sup.2 is carboxy (lower) alkyl or protected carboxy (lower) alkyl,R.sup.P is carboxy, or protected carboxy, m is an integer 2, thenR.sup.3 is carbamoyl, lower alkyl or hydroxyphenyl or a group of the formula: ##STR3## wherein R.sub.a.sup.3 is hydrogen or acylamino and R.sub.b.sup.3 is carboxy or protected carboxy, and whenR.sup.P is carbamoyl, thenR.sup.1 is acyl.