Hi everybody, I'm a new-comer on this phorum.I got a lot of interesting info while reading here but there are some questions which I didn't find answers for,so I wanna moot them to get your advice,guys. Lemme say about myself a little bit.I'm not a US citizen and living overseas,currently working as Instrument Engineer in oil&gas industry(I got a five-year Engineering degree that matches something medium between BEng and MEng comparing to US gradation).I don't like my work,'cause it's just a field engineer's work without possibility to use my brains totally.I've always tended to research&development work,I love different calculations both in higher Maths and Physics,but I also love Engineering calculations,design and applications. I'd like to develop my skills in these things to get an interesting research job,and then later to start up my own technology company either in Electronis&Electrical Engineering or in the renewable energy field.That's why I've been thinking and gathering information on getting PhD in US and about what I'll be doing after I get it. Btw,I'm 27 and married with no kids yet but one day we'll hopefully get them,so even though I love my wife,it's sort of constraint and I've gotta be extra-careful before I finally make a decision to leave my current job and dip my head into preparing for TOEFL,GRE,etc.Uuuf...I strongly desire to change my career path...and achieve the goal.So,there are some questions to be asked: 1)Is it really required to be a PhD holder to get some research&development job in some technology company,federal or national lab,whatever?I mean,is it not sufficient to be just a BEng or MEng? 2)Is it possible to start up my own technology company being an BEng or MEng in Electronics&Electrical Engineering,for instance? I know,you may say that grad school iself can give me a knowledge about nascent technologies,awareness of science and engineering tendencies along with useful contacts and a reputable status for potential investors.But...may be,is there some way to get into R&D work and later create own tech company leaving out PhD?If not,I'll gladly get this degree. Any comments will be highly appreciated!