Microelectronics packaging advantages

Adhesives gained acceptance rapidly, despite the industry s reluctance to incorporate organic materials in microelectronic packages, due to the following advantages ... 

Monolithic sensor systems, however, offer advantages such as low power consumption or reduced packaging efforts. Integration of an on-chip serial interface reduces the number of bonding wires, especially in the case of an integrated multisensor array. Taking into account the mass-production facilities with estabhshed microelectronic and microtechnological processes, commercialization of monoHthic... 

Alternative polymers that have certain advantages over polyimides have also been introduced they include poly(phenylquinoxaline), poly(phenylquinoline), and poly(benzocyclobutenes) (PBCBs) (93,116). The PBCBs have a low curing temperature (250 °C), low dielectric constant (2.6), low dissipation factor (0.0045), and low moisture absorption (0.3%) The development of specialty polymers for packaging and high-density interconnections will continue to be an active area of research as polymer manufacturers focus on the needs of the microelectronic industry. 

Ceramic Hermetic-Packaged Microelectronics The meaningful differences between CHP and PEM devices in the context of corrosion are the following (a) A1 wires are used instead of Au so that the prime corrosion vulnerability is the ultrafme 25- im wire instead of the bondpad, (b) the internal environment can theoretically be controlled such that a benign environment will always exist, and (c) the cavity containing the die is unfilled so encapsulation defects are not needed as sites for water condensation. To achieve the environmental control advantage, three factors must be satisfied (a) a hermetic seal, (b) a clean and dry assealed internal... 

The delivered packages of process chemicals have trended to larger sizes and recyclable containers due to purity, cost, and safety reasons. ] Typically, the most common recyclable containers have a capacity of 200 liters with the added advantage of improved purity after early uses because of leaching during the initial service.(Note In this chapter the terms leaching and extraction are used as synonyms. In the microelectronics industry, the term leaching is specific to extraction... 

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