By Gerald L. Ginsberg
The final 20 years have visible significant advances within the electronics undefined. maybe the main major point of those advances has been the numerous function that digital apparatus performs in just about all product markets. although digital apparatus is utilized in a vast base of functions, many destiny functions have not begun to be conceived. This versatility of electron ics has been led to basically by way of the numerous advances which have been made in built-in circuit know-how. The digital product person is never conscious of the built-in circuits in the gear. notwithstanding, the person is usually very conscious of the dimensions, weight, mod ularity, maintainability, aesthetics, and human interface good points of the product. in truth, those are points of the goods that regularly are instrumental in deter mining its luck or failure on the market. Optimizing those and different product gains is the first position of digital gear Packaging expertise. because the electronics maintains to seasoned vide items that function swifter than their predecessors in a smaller area with a discounted price consistent with functionality, the position of digital packaging know-how will suppose an excellent higher position within the improvement of reasonably priced products.
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Additional resources for Electronic Equipment Packaging Technology
PHYSICAL DOCUMENTATION 44. Detail/Package Drawings 45. Reference Designators 46. Dimensions and Tolerances 47. Material Construction G. PHYSICAL DESIGN LAYOUT 36. Physical Design Rules 37. Dimensionsl Tolerances 38. Package Interlaces 39. Material Properties 40. Reference Designators 41. Cablingl Conductors 42. Detailed Thermal Analysis 43. Detailed R & M Analysis F. NETLIST 33. Design Rules 34. Parts 35. 5. J I8J _ -- SYSTEM I I I I I I I I I I I I II I I I I I I I I II I I I I I -I I I I I I I I I I I II I I I c:::::J CJ I8J Arithmetic best.
Also, standard and compiled cell prototyping costs are usually between $15,000 and $50,000 or more. Fully-custom devices, obviously, have the longest prototyping times, often taking between 9 months to 2 years, with development costs usually ranging from $50,000 to over $100,000. Thus, programmable logic devices are often the logical choice when the product is required immediately or when frequent design changes are likely to occur. PLDs are limited though to relatively simple requirements when compared to the functionality and densities of the other ASIC technologies.
Because PLDs are readily available off-the-shelf, prototypes can be obtained almost immediately at a relatively negligible development cost. 3. ASIC technology tradeoffs. 36 Electronic Equipment Packaging Technology velopment time is typically from 7 to 13 weeks, with prototype costs that are typically from $15,000 to $100,000. Standard and compiled cells can take even longer, typically from 13 to 26 weeks, because their wafers are made from scratch instead of being fully or partially preprocessed, as are PLDs and gate arrays.
Electronic Equipment Packaging Technology by Gerald L. Ginsberg