摘要:
A method of fabricating a solar cell is disclosed. The method includes forming a polished surface on a silicon substrate and forming a first flowable matrix in an interdigitated pattern on the polished surface, where the polished surface allows the first flowable matrix to form an interdigitated pattern comprising features of uniform thickness and width. In an embodiment, the method includes forming the silicon substrate using a method such as, but not limited to, of diamond wire or slurry wafering processes. In another embodiment, the method includes forming the polished surface on the silicon substrate using a chemical etchant such as, but not limited to, sulfuric acid (H2SO4), acetic acid (CH3COOH), nitric acid (HNO3), hydrofluoric acid (HF) or phosphoric acid (H3PO4). In still another embodiment, the etchant is an isotropic etchant. In yet another embodiment, the method includes providing a surface of the silicon substrate with at most 500 nanometer peak-to-valley roughness.
摘要翻译:公开了一种制造太阳能电池的方法。 该方法包括在硅衬底上形成抛光表面,并在研磨表面上形成交错图案中的第一可流动基质,其中抛光表面允许第一可流动基质形成包括均匀厚度和宽度特征的叉指图案。 在一个实施例中,该方法包括使用诸如但不限于金刚石线或浆料晶片化方法的方法来形成硅衬底。 在另一个实施方案中,该方法包括使用化学蚀刻剂(例如但不限于硫酸(H 2 SO 4)),乙酸(CH 3 COOH),硝酸(HNO 3),氢氟酸(HF))在硅衬底上形成抛光表面, 或磷酸(H 3 PO 4)。 在另一个实施方案中,蚀刻剂是各向同性蚀刻剂。 在另一个实施例中,该方法包括提供硅衬底的表面至多500纳米的峰 - 谷粗糙度。
摘要:
Single use or disposable cutting blocks and methods for utilizing same are disclosed. The blocks are preferably constructed of polymer and/or other suitable low cost and light weight materials. The blocks may be adapted for use with low friction cutting instruments, as well as other such cutting instruments. Several differently sized and configured blocks may be utilized to perform a single surgical procedure. In addition, kits housing one or more such blocks, with or without other instruments are possible.
摘要:
Single use or disposable cutting blocks and methods for utilizing same are disclosed. The blocks are preferably constructed of polymer and/or other suitable low cost and light weight materials. The blocks may be adapted for use with low friction cutting instruments, as well as other such cutting instruments. Several differently sized and configured blocks may be utilized to perform a single surgical procedure. In addition, kits housing one or more such blocks, with or without other instruments are possible.
摘要:
An intervertebral implant for insertion between adjacent vertebral bodies is provided. The intervertebral implant can include a first component. The first component can have a first articulating surface, which can be generally convex. The intervertebral implant can include a second component, which can be generally in the shape of a toroid. The second component can have a second articulating surface. The second articulating surface can be generally concave and articulable with the first articulating surface for retaining motion between the first and second vertebra. The second articulating surface can have a larger radius of curvature than the first articulating surface such that a portion of the first articulating surface extends into an aperture defined by the generally toroid shape.
摘要:
An apparatus for guiding a surgical instrument for shaping the end of a bone includes an alignment plate which has a contact surface and is mounted with the contact surface in a plane substantially perpendicular to the physical axis of the bone and in contact with the bone. A cutting guide is mounted to the alignment plate for rotation about an axis which is substantially parallel to the mechanical axis. The cutting guide includes an instrument-receiver which maintains the surgical instrument in a cutting plane which is substantially parallel to the contact plane and at a predetermined distance from it.
摘要:
Methods, systems, and computer readable media for facilitating trading two items (L,Q) from the group of items comprising commodities and financial instruments. At least two agents (2) want to trade the items (L,Q). There is a trading channel (3) between the two agents (2) allowing for the execution of trades. There are flow (trading) limits on the items being traded. A central computer (1) is coupled to the two agents (2). Said computer (1) is adapted to convey to each agent (2) current tradable bid and offered prices and sizes subject to the agent's (2) trading limits.