Sep 27, 2020 · Polyimide (PI) and Polybenzoxazole (PBO) products are typically used as a stress relief and protective insulating layer before packaging or redistribution layer (RDL). PI and PBO plays a critical role in advanced microelectronic packaging as an insulating material and can be processed as a standard photolithography process.

May 8, 2017 · This post will describe the use of a photosensitive positive-tone dielectric based on polybenzoxazole (PBO) used as the redistribution layers (RDL) in Fan-Out Wafer Level Packaging (FOWLP).

Apr 24, 2017 · A key enabler in the fan-out package is the polymer redistribution layer (RDL) or sometimes referred to as the dielectric layer. There are several types of polymers used as photosensitive dielectrics in FOWLP: Polyimide (PI) Polybenzoxazole (PBO) Benzocylobutene (BCB) Figure 1. Two layer RDL in Fan-out Wafer Level Packaging

Jan 1, 2017 · In this paper, we will report on our novel low temperature (<200C) curable PBO and PI. A novel alkaline positive tone PBO was developed by re-designing key components of the formulation to enhance lithographic performance, Cu adhesion and chemical resistance.

We investigated the electronic structure of Lead Oxide (PbO) – one of the most promising photoconductor materials for direct conversion x-ray imaging detectors, using soft x-ray emission and absorption spectroscopy.

Nov 1, 2016 · PBO nanofibers are used as a polymeric building block to assemble layered films. (PBO-PBO) 50 films possess outstanding thermal stability and fire retardancy. (PBO-PVA) 50 nanocomposites exhibit enhanced mechanical strength and flexibility.

PbO layers grown by ion-assisted thermal deposition are stable at ambient conditions. Structural and morphological analysis confirms that a-PbO is stoichiometric and free of detectable voids, which suggests higher bulk X-ray

Mar 22, 2017 · In contrast to poly-PbO, novel a-PbO layers grown by ion-assisted thermal deposition are stable at ambient conditions. Structural and morphological analysis confirms that a-PbO is stoichiometric and free of detectable voids, which suggests higher bulk X-ray stopping power than porous poly-PbO.

Polyimide and Polybenzoxazole (PBO) products are specialty stress relief coatings used as a protective layer or "buffer coat" before packaging or redistribution layer (RDL).

May 9, 2012 · Two-micrometer-thick Pb 0.97 La 0.02 (Zr 0.98 Ti 0.02)O 3 (PLZT) antiferroelectric films, with the addition of different PbO insert layer, were successfully fabricated on LaNiO 3 /Si substrates through a sol–gel method, and their microstructure and the energy storage performance were investigated in detail. X-ray diffraction curves and ...