Abstract: An image sensor structure and an integrated lens module thereof are provided. In the image sensor structure with the integrated lens module, the image sensor structure comprises a chip and a lens module. The chip has light-sensing elements, first conducting pads, and a conducting channel. The light-sensing elements are electrically connected to the first conducting pads and the first conducting pads are electrically connected to one end of the conducting channel passing through the chip. The lens module comprises a holder and at least one lens. The holder has a through hole and the lens is embedded in the through hole and integrated with the holder. By using the integrated lens and holder, a manufacturing process of the image sensor structure is simplified and a manufacturing cost of the image sensor structure is reduced.

Abstract: An image sensor module package structure with a supporting element comprises a chip, the supporting element and a light-transmitting element. The chip has light-sensing elements arranged on a light-sensing area of a first surface thereof, first conducting pads electrically connected to the light-sensing elements, and a conducting channel passing through the chip and electrically connected to the first conducting pads at one end. The supporting element has an opening, a first coupling surface, and a second coupling surface. The opening corresponds to the light-sensing area and the first coupling surface is combined with the first surface of the chip while the light-transmitting element is combined with the second coupling surface. The supporting element separates the light-transmitting element from the chip by a proper distance, so as to enhance an image sensing accuracy of an image sensor module.

Abstract: This invention relates to processes for preparing asymmetrical biphenyl tetracarboxylic acids and the corresponding asymmetrical dianhydrides, namely 2,3,3?,4?-biphenyl dianhydride (a-BPDA), 2,3,3?,4?-benzophenone dianhydride (a-BTDA) and 3,4?-methylenediphthalic anhydride (-MDPA). By cross-coupling reactions of reactive metal substituted o-xylenes or by cross-coupling o-xylene derivatives in the presence of catalysts, this invention specifically produces asymmetrical biphenyl intermediates that are subsequently oxidized or hydrolyzed and oxidized to provide asymmetric biphenyl tetracarboxylic acids in comparatively high yields. These asymmetrical biphenyl tetracarboxylic acids are subsequently converted to the corresponding asymmetrical dianhydrides without contamination by symmetrical biphenyl dianhydrides.

Abstract: This invention relates to the compositions and processes for preparing 2,3,3?,4?-tetramethylbenzophenone and asymmetrical dianhydrides such as 2,3,3?,4? benzophenone dianhydride (a-BTDA), and 3,4?-(hexafluoroisopropylidene)diphthalic anhydride (a-6FDA). a-BTDA is prepared by Suzuki coupling with catalysts from a mixed anhydride of 3,4-dimethylbenzoic acid and 2,3-dimethylbenzoic acid with a respective 2,3-dimethylphenylboronic acid and 3,4-dimethyl phenylboronic acid to form 2,3,3?,4?-tetramethylbenzophenone which is oxidized to 2,3,3?,4?-benzophenonetetracarboxylic acid followed by cyclodehydration to obtain a-BTDA. The a-6FDA was prepared by nucleophilic trifluoromethylation of 2,3,3?,4?-tetramethylbenzophenone with trifluoromethyltrimethylsilane to form 3,4?-(trifluoromethylmethanol) bis(o-xylene) which is converted to 3,4?-(hexafluoroisopropylidene-bis(o-xylene). The 3,4?-(hexafluoroisopropylidene)-bis(o-xylene) is oxidized to the corresponding tetraacid followed by cyclodehydration to yield a-6FDA.

Abstract: This invention relates to the composition and a solvent-free process for preparing novel imide oligomers and polymers specifically formulated with effective amounts of a dianhydride such as 2,3,3?,4-biphenyltetra carboxylic dianydride (a-BPDA), at least one aromatic diamine and an endcapped of 4-phenylethynylphthalic anhydride (PEPA) or nadic anhydride to produce imide oligomers that possess a low-melt viscosity of 1–60 poise at 260–280° C. When the imide oligomer melt is cured at about 371° C. in a press or autoclave under 100–500 psi, the melt resulted in a thermoset polyimide having a glass transition temperature (Tg) equal to and above 310° C. A novel feature of this process is that the monomers; namely the dianhydrides, diamines and the endcaps, are melt processable to form imide oligomers at temperatures ranging between 232–280° C. (450–535° F.) without any solvent.

Abstract: This invention is a highly concentrated stable solution of polyimide precursors (monomers) having a solids content ranging from about 80 to 98 percent by weight in lower aliphatic alcohols i.e. methyl and/or ethyl alcohol. The concentrated polyimide precursor solution comprises effective amounts of at least one aromatic diamine, at least one aromatic dianhydride or a lower molecular weight alkyl ester of said dianhydride, and a monofunctional endcap including monoamines, monoanhydrides and the lower alkyl esters of said monoanhydrides. These concentrated polyimide precursor solutions are particularly useful for the preparation of fibrous prepregs and composites for use in structural materials for military and civil applications.

Abstract: Novel squaraine dyes and compositions of matter containing such dyes are disclosed. The novel squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.

Abstract: Novel squaraine dyes and compositions of matter containing such dyes are disclosed . The novel squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.

Abstract: Novel squaraine dyes and compositions of matter containing such dyes are disclosed. The novel squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.

Abstract: Squaraine dyes and compositions of matter containing such dyes are disclosed. The squaraine dyes have an absorption maximum greater than 600 nanometers and are particulary useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.